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1989 Volvo 780

Check distributor cap for cracks and wipe clean on inside. 
Check that all electric leads in the ignition system are clean and correctly connected. 

Misfiring and erratic engine operation

Faulty ignition system 
Check spark plugs, electrode gap should be 0.028" (0.7 mm), and wipe clean. 
Check distributor cap for cracks and wipe clean on inside. 
Check that all electric leads in the ignition system are clean and correctly connected. 

Ice in injection system 
Park the vehicle in a warm garage and add a fuel line de-icer to the fuel system. 

Blocked air filter/fuel filter 
Change filter. 

pg. 78 Service diagnosis 

Tire imbalance or vibration during driving 

Wheel imbalance 
Have the wheels re-balanced. 

Incorrect tire pressure 
Check and adjust tire pressure. 

Level of oil in power-assisted steering pump too low 
Check and fill oil, see section "Power steering fluid". 

Engine overheats 

Radiator hose cracked or leaking 
Check and replace if necessary. 

Insufficient coolant 
Check and fill coolant, see section "Cooling system". 

Fan belt frayed or belt tension incorrect 
Replace or adjust tension. 

file:///K|/ownersdocs/1989/1989_780/89780_05.htm (16 of 18)12/30/2006 8:24:26 AM

Summary of Contents for 1989 780

Page 1: ...t to make model changes at any time or to change specifications or design without notice and without incurring obligation pg 2 This manual deals with the operation and care of your Volvo Welcome to the world wide family of Volvo owners We trust that you will enjoy many years of safe driving in your Volvo an automobile designed with your safety and comfort in mind To ensure your satisfaction with t...

Page 2: ...ing it ll never happen to me Volvo urges you and all adult occupants of your car to wear seatbelts and ensure that children are properly restrained using an infant car or booster seat determined by age weight and height Fact In every state some type of child restraint legislation has been passed Additionally some states are seriously considering or have already made it mandatory for occupants of a...

Page 3: ...se requirements Modifications to the emission control system s may render your Volvo not certifiable for legal operation in the U S Canada and other countries pg 5 Keys The key number codes are stamped on a separate tag supplied with the keys This tag should be separated from the key ring and kept in a safe place The double sided tape on the back of the tag can be used to secure it safely In the e...

Page 4: ...1989 Volvo 780 Top of Page file K ownersdocs 1989 1989_780 89780_00 htm 4 of 4 12 30 2006 8 24 17 AM ...

Page 5: ...uments Switches and controls pg 7 Instruments Switches and controls 1 Air louver 21 2 Headlights parking lights 14 3 Turn signals Cruise Control 14 16 4 Hazard warning flashers 14 5 Instruments 8 file K ownersdocs 1989 1989_780 89780_01 htm 1 of 19 12 30 2006 8 24 18 AM ...

Page 6: ...heel lock 15 21 Electrically operated moon roof 27 22 Rear window rear view mirror demister 19 23 Hood release handle 37 24 Electrically operated windows 20 24 Electrically operated rear view mirrors 26 24 Electrically operated door locks 34 25 Electrically operated front seat 39 The pages in this section provide a detailed description of the vehicle s instruments and controls Note that vehicles m...

Page 7: ...e Turbo models pg 9 Instruments Quartz crystal clock To reset the hands push in the reset knob and turn Tachometer Reads thousands of engine rpm Engine should not be operated in red range Trip odometer Used for measuring shorter distances Last figure represents 1 10 mile or km A black number on a white background original instrument A red number on a white background replacement instrument Trip od...

Page 8: ... oil temperature which varies with the ambient temperature rpm load and speed Normal oil temperature 140 250 F The sender is installed in the oil sump drain plug hole Voltmeter The voltmeter indicates the voltage in the electrical system and thereby also the state of the battery While the car is being driven the pointer should be within the black field Should the pointer point to the upper or lowe...

Page 9: ...washer fluid level If the lamp glows continuously when the engine is running there is only about 1 2 1 US qts remaining in the washer fluid reservoir 16 4th gear disengaged 17 Fasten seat belts 18 Not connected pg 11 Warning lights The warning lights described on this page should never stay on when driving Alternator warning light If the light comes on while the engine is running check the tension...

Page 10: ...dealer for an inspection of the brake system Oil pressure warning light If the light comes on during driving the oil pressure is too low Stop the car and then stop the engine immediately Do not drive the vehicle See section titled Engine oil After hard driving the light will come on occasionally when the engine is idling This is normal provided it goes off when the engine speed is increased Bulb f...

Page 11: ...ntial of the vehicle Thus while control will be enhanced ABS will not shorten stopping distances on slippery surfaces NOTE If the warning lamp lights up there is a malfunction of the ABS system the standard braking system will however function and the vehicle should be driven to a Volvo dealer for inspection SRS Supplemental Restraint System If the light comes on or stays on after the vehicle has ...

Page 12: ...lightly different times causing a cancellation of all signals This condition will sound like hissing or static Very little can be done to eliminate this problem however lowering the treble on your radio could help mask these disturbances thereby allowing you to achieve optimum pleasure from your audio system pg 14 Lighting Turn signals Hazard warning flasher Headlights and parking light All lights...

Page 13: ...t flasher position and release it 3 Headlight flasher headlights off Move the lever towards the steering wheel The headlight high beam will be on until the lever is released Hazard warning flasher The four way flasher should be used to indicate that the vehicle has become a traffic hazard NOTE Regulations regarding the use of the hazard warning flasher may vary from state to state pg 15 Windshield...

Page 14: ...eel lock The steering wheel lock might be under tension when the car is parked Turn the steering wheel slightly to free the ignition key A chime will sound if the starting key is left in the ignition lock and the front door on the driver s side is opened pg 16 Cruise control Cruise control file K ownersdocs 1989 1989_780 89780_01 htm 10 of 19 12 30 2006 8 24 18 AM ...

Page 15: ...ntial has been reduced Acceleration Momentary acceleration such as for passing does not interrupt cruise control operation The previously selected speed will be maintained without having to set switch to RESUME To disengage the cruise control system Set switch B to position OFF or depress brake pedal Switching off the starting ignition switch is will automatically disengage the cruise control syst...

Page 16: ... or nighttime visibility of other vehicle to less than 500 ft 152 meters The headlights must be switched on Note that local regulations governing the use of these lights may vary Auxiliary front fog lights Auxiliary front fog lights can be switched on only with the low beam headlights on pg 18 Parking brake Cigarette lighter Ash trays file K ownersdocs 1989 1989_780 89780_01 htm 12 of 19 12 30 200...

Page 17: ...to obtain the best possible performance of the parking brake the brake linings should be broken in See section titled Brake system Cigarette lighter To operate depress the knob fully When the knob automatically releases the cigarette lighter is ready for use The starting ignition switch must be switched on to position I or II for the cigarette lighter to function file K ownersdocs 1989 1989_780 89...

Page 18: ...ide mirror heating after approx 6 minutes and the rear window demister after 12 minutes or when the ignition key is switched off The control lights go out correspondingly Depressing the switch while any control light is on will disengage all heating Depressing the switch after the control lights have gone out will restart the heating cycle CAUTION Do not place items that may damage the printed cir...

Page 19: ...lectrically operated windows The electrically operated windows are controlled by switches from the driver s armrest as shown in the above illustration The starting ignition switch must be ON position II for the electrically operated windows to function The window is lowered if the rear part of the switch is pressed and raised if the front part of the switch is pressed WARNING Remove the ignition k...

Page 20: ... remains retracted or retracts if the radio is already on NOTE Always retract the antenna before driving into automatic car washes or any other areas with low ceilings to avoid damaging or breaking the antenna off The power antenna should be cleaned and lubricated every 5 000 miles 8 000 km pg 21 Heating and ventilation ECC Electronic Climate Control This is an automatic system that also permits m...

Page 21: ...cribe how ECC works and how it can be used most effectively Air louvers dash A Open B Closed C Directing air flow horizontally D Directing air flow vertically A certain amount of air will always enter through the dash air louvers as long as they are open regardless of the position of the air distribution control Close the dash air louvers to obtain maximum air flow to floor or windshield pg 22 Hea...

Page 22: ...cally maintain a comfortable in car temperature regardless of the outdoor temperature Select the desired temperature The fan will run its maximum speed in either the cooling or max heating positions Optimum defrosting file K ownersdocs 1989 1989_780 89780_01 htm 18 of 19 12 30 2006 8 24 19 AM ...

Page 23: ...the air inside the car will become stale and the windows may fog NOTE Do not place any objects over the sensor in the passenger side speaker grille as this will cause the ECC system to respond incorrectly to ambient conditions ECC system fault indication If the light in the air conditioning push button begins to Flash when the ignition is switched on a simple fault is indicated The system will com...

Page 24: ...s Rear view side view mirrors 26 Interior light moon roof 27 Child safety 28 Seat belts 30 Supplemental Restraint System SRS 32 Doors and locks 34 Trunk long load storage 36 Hood 37 Passenger compartment storage spaces 38 Front seats 39 pg 26 Rear view side view mirrors Make up mirror file K ownersdocs 1989 1989_780 89780_02 htm 1 of 20 12 30 2006 8 24 20 AM ...

Page 25: ...s he adjusted prior to driving Electrically operated side view mirrors The control switches are located in the driver s door armrest A Adjustment sideways B Adjustment up down WARNING Objects seen in the wide angle right side mirror are closer than they appear to be file K ownersdocs 1989 1989_780 89780_02 htm 2 of 20 12 30 2006 8 24 20 AM ...

Page 26: ...e sun visor Make up mirror lighting A OFF B ON pg 27 Interior light Moon roof Interior light 1 Light always on 2 Light always off 3 Light is on when either of the front doors are opened A time delay device for the interior light illuminated for approx 7 seconds after closing the driver s door file K ownersdocs 1989 1989_780 89780_02 htm 3 of 20 12 30 2006 8 24 20 AM ...

Page 27: ...sun shade Note Do not slide the sun shade further back than the front edge of the moon roof Reading lights rear seats There are two adjustment reading lights for rear seat passengers The lights are turned on and off by the switches on the rear arm rests The starting ignition key must be in position I pg 28 Child safety Child safety Volvo recommends the proper use of restraint systems for all occup...

Page 28: ... child restraint system can help protect a child in a vehicle Here s what to look for when selecting a child restraint system It should have a label certifying that it meets applicable Federal Motor Vehicle Safety Standards FMVSS 213 or in Canada CMVSS 213 Make sure the child restraint system is appropriate for the child s height weight and development the label required by the standard or regulat...

Page 29: ...he screw is removed counter clockwise Place the top tether anchorage plate as shown in the illustration Using the M8 bolt tighten securely to 16 2 5 ft lb Place the plastic trim plate over the anchorage plate if desired WARNING Child Restraint Anchorages are designed to withstand only those loads imposed by correctly fitted Child Restraints Under no circumstances are they to be used for adults sea...

Page 30: ...rmally unlocked and you can move freely provided that the shoulder belt is not pulled out too far The retractors will lock up as follows if belt is pulled out rapidly during braking and acceleration if the vehicle is leaning excessively when driving in turns In order for the seat belt to provide maximum protection in the event of an accident it must be worn correctly When wearing remember the belt...

Page 31: ...ed pushbutton in receptacle buckle and let the belts rewind into their retractors WARNING Devices used to induce slack into the shoulder belt portion of the three point belt system will have a detrimental effect on the amount of protection available to you in the event of a collision pg 31 Seat belts Center rear belt adjustment The center rear seat belt is manually adjustable It should always be a...

Page 32: ...e belt under the arm or otherwise out of position Such use could cause injury in event of accident As the seat belts loss much of their strength when exposed to violent stretching they should be replaced after any collision even though they may appear to be undamaged Never repair the belt on your own have this done by an authorized Volvo dealer only During pregnancy Pregnant women should always we...

Page 33: ...barrier at a speed of approximately 12 mph 19 kph or greater WARNING As its name implies SRS is designed to be a SUPPLEMENT to not a replacement for the three point belt system The airbag is not designed to be released in the event of a side or rear end collision or during a rollover situation For maximum protection wear seat belts at all times The airbag system includes a gas generator 1 surround...

Page 34: ...y the SRS warning light will be illuminated along with the other warning indicator lights when the ignition key is turned to the ON position position II and go out a short time after the engine has been started Check that this light is functioning properly every time the car is started The following items are monitored by the diagnostic system Sensor unit electronics integrity Reserve energy suppl...

Page 35: ...hould you have any questions about the SRS system please contact your authorized Volvo Dealer or the Consumer Affairs Department In the U S A Volvo Cars of North America One Volvo Drive Rockleigh New Jersey 07637 201 767 4737 In Canada Volvo Canada Ltd 175 Gordon Baker Road Willowdale Ontario M2H 2H7 416 493 3700 pg 34 Doors and locks Door locks Your car is equipped with a central door locking sys...

Page 36: ...G The lock buttons should not be in the down position while driving In case of an accident this may hinder rapid access to the occupants of the vehicle To avoid battery drain The interior light and the warning light in The rear of the doors come on when a door opened To avoid battery drain when the doors are opened for prolonged periods these lights can be switched off by pushing in and turning th...

Page 37: ...glove compartment The lock can also be released by using the release lever situated in the door pillar on the driver s side Always lock the trunk with the key when you leave the car The lock is situated in the door pillar on the driver s side file K ownersdocs 1989 1989_780 89780_02 htm 14 of 20 12 30 2006 8 24 20 AM ...

Page 38: ... be used for skis to avoid soiling or tearing the upholstery Please note that the flap in the rear seat is only intended for light loads such as skis wood etc Max length of load 6 1 2 ft 2m Max weight of load 33 lbs 15 kg WARNING Cover sharp edges on load to prevent injury to occupants Secure load to prevent shifting during sudden stops by wrapping seat belt around the armrest as shown file K owne...

Page 39: ...r the left side of the dash Lift the hood slightly insert a handle under the center line of the hood and depress the safety catch handle Open the hood Check that the hood locks properly when closed The normal opening angle for the hood is approximately 55 By turning the catches on the hinges as illustrated the hood can be opened to the vertical position The catches will return to their normal posi...

Page 40: ... Take care in low roof garages Engine compartment light A the light is always off B the light comes on when the hood is opened pg 38 Storage spaces file K ownersdocs 1989 1989_780 89780_02 htm 17 of 20 12 30 2006 8 24 20 AM ...

Page 41: ...nt seats are electrically operated Using the switches on the sides of the seats you can adjust the height of the seat rear the height of the seat front the forward backward movement the backrest tilt file K ownersdocs 1989 1989_780 89780_02 htm 18 of 20 12 30 2006 8 24 20 AM ...

Page 42: ... underside of the button The seat will move forward as long as the switch is depressed and the backrest is folded forward To return the seat to its original position fold the backrest up depress the switch and hold it until the seat has returned to its original position The STOP button cuts out the other controls This is a safety feature to prevent accidental movement of the seat eg when children ...

Page 43: ...1989 Volvo 780 pg 40 Contents Top of Page file K ownersdocs 1989 1989_780 89780_02 htm 20 of 20 12 30 2006 8 24 20 AM ...

Page 44: ...gear selector towing trailers Break in period Fuel requirements 42 Refueling 43 Starting the engine 44 Transmission 45 Points to remember 48 Emergency towing 51 Starting with an auxiliary battery 53 Catalytic Converter 54 Brakes 55 Towing a trailer 56 Winter driving 57 Before a long distance trip 58 Vehicle storage 59 file K ownersdocs 1989 1989_780 89780_03 htm 1 of 20 12 30 2006 8 24 23 AM ...

Page 45: ...esult in loss of emission warranty coverage State and local vehicle inspection programs will make detection of misfueling easier possibly resulting in emission test failure for misfueled vehicles Octane Rating Volvo engines require unleaded gasoline with an R M 2 octane rating also called the Anti Knock Index or AKI of 87 or higher This is generally equivalent to a Research Octane Number RON of 91...

Page 46: ...enters the red zone approximately 2 4 US gal 9 liters of fuel remain in the tank Be aware that the usable tank capacity will Be somewhat less than the 21 1 US gal 80 Liter maximum When the fuel level is low such factors as ambient temperature the fuel s vapor pressure characteristics and terrain can effect the fuel pumps ability to supply the engine with an adequate supply of fuel Therefore it is ...

Page 47: ... Refer to section Front seats 2 Apply the parking brake if not already set Depress brake pedal firmly 3 Place the gear selector lever in Park or Neutral 4 Without touching the accelerator pedal turn the ignition key to the starting position Release the key as soon as the engine starts Avoid repeated short attempts to start fuel is injected every time the starter is engaged when engine is cold Allo...

Page 48: ...stances are subject to abnormally rapid wear because the engine never reaches normal operating temperature It is therefore beneficial to reach normal operating temperature as soon as possible This is best achieved by driving with a light foot on the accelerator pedal for a few minutes after starting rather than prolonged idling TURBO CAUTION Never race the engine immediately after starting Oil flo...

Page 49: ...ades WARNING Never leave the car when the engine is running If by mistake the gear selector is moved from P the car may start moving R Reverse Never engage R while car is moving forward N Neutral Neutral position no gear is engaged Use parking brake Driving gears D Drive D is the normal driving position Upshifts and downshifts of the forward gears occur automatically and are governed by accelerato...

Page 50: ...1 to select low gear when no upshift is desired for instance when entering and descending steep grades Shift gate The gear selector can be moved freely between D and 2 Selections of other positions are obtained by depressing the selector knob prior to moving the selector Slightly depressing the selector knob allows selection of positions N D 2 and 1 Fully depressing the selector knob allows select...

Page 51: ... conditions other than those stated above Kick down Automatic shift to a lower gear is achieved by depressing the throttle pedal fully and briskly An up shift will be achieved when approaching the top speed for a particular gear or by releasing the throttle pedal slightly Kick down can be used for maximum acceleration or when passing at highway speeds below a certain limit Caution Never select P o...

Page 52: ...hill gradients select position 2 When negotiating long steep downhill slopes position 1 should be selected and position 2 for less severe inclines in order to obtain the best possible engine braking effect Do not hold the car stationary on an incline by using the accelerator pedal instead engage the parking brake This prevents unnessary heating of the transmission oil When towing disengage the 4th...

Page 53: ...ery while the engine is running as this will immediately ruin the alternator Always make sure that all the battery connections are properly tightened If any electrical welding work is performed on the vehicle the ground lead and all the connecting cables of the alternator must be disconnected and the welder cables placed as near the welding point as possible WARNING Do not drive with trunk lid ope...

Page 54: ...ty and reduces the risk of rear wheel skid Remember that these properties can alter with the vehicle load The heavier the load in the trunk the less the tendency to understeer Loads should be distributed so that capacity weight or maximum permissible axle loads are not exceeded Handling roadholding Vehicle load tire design and inflation pressure all affect vehicle handling Therefore check that the...

Page 55: ...lvo mat on the driver s floor may cause the accelerator pedal to catch Check that the movement of the accelerator pedal is not impeded pg 51 Emergency towing pulling of vehicle Precautionary steps to observe when car is in tow Steering must be unlocked Please check with state and local authorities before attempting this type of towing as vehicle being towed are subject to regulations regarding max...

Page 56: ...DAMAGE TO CATALYTIC CONVERTER CAN RESULT pg 52 Vehicle towing information Only use wheel lift or flat bed equipment CAUTION Sling type equipment applied at the front will damage radiator and air conditioning lines It is equally important not to use sling type equipment at the rear or apply lifting equipment inside the rear wheels serious damage to the rear axle may result pg 53 Jump starting file ...

Page 57: ...o not connect booster cable to any part of fuel system or any moving parts Avoid touching hot manifolds After engine has started remove first the negative terminal jumper cable Then remove the positive terminal jumper cable WARNING To reduce the possibility of explosion never expose battery to open flame or electric spark Do not smoke near battery Batteries generate hydrogen gas which is flammable...

Page 58: ...or removing components Repeated use of leaded fuel WARNING Do not park your car over combustible materials such as grass or leaves which can come into contact with the hot exhaust system and cause such materials to ignite under certain wind and weather conditions Excessive starter cranking in excess of one minute with an intermittently firing or flooded engine can cause catalyst or exhaust system ...

Page 59: ...c car wash can cause water to collect on the brake discs and pads This will cause a delay in braking effect when the pedal is depressed To avoid such a delay when the brakes are needed depress the pedal occasionally when driving through rain slush etc This will remove the water from the brakes Check that brake application feels normal This should also be done after washing or starting in very damp...

Page 60: ...e vehicles are registered All Volvo models are equipped with energy absorbing shock mounted bumpers Trailer hitch installation should not interfere with the proper operation of this bumper system WARNING Bumper attached trailer hitches must not be used on Volvos nor should safety chains be attached to the bumper Trailer hitches attaching to the vehicle rear axle must also not be used WARNING Never...

Page 61: ...ity of the engine oil is important Oil with low viscosity thinner oil improves cold weather starting as well as decreasing fuel consumption while the engine is warming up For winter use 5W 30 oil particularly the synthetic type is recommended Be sure to use good quality oil but do not use this cold weather oil for hard driving or in warm weather See section Engine oil for more information The load...

Page 62: ...eakage Check condition of drive belts Check state of charge of battery Examine tires carefully the spare tire as well and replace those that are worn Check tire pressures The brakes front wheel alignment and steering gear should be checked by your Volvo dealer only Check all lights including high beams Reflective warning triangles are legal requirement in some countries Have a word with your Volvo...

Page 63: ... negative cable Lift the wiper arms away from the windshield Increase tire pressure to maximum allowed i e 36 psi Open one of the windows slightly for ventilation Ensure that the coolant contains sufficient anti freeze to provide protection down to 22 F 30 C Volvo anti freeze also provides resistance against corrosion Remove all valuables and lock the car Check the battery voltage at least every 6...

Page 64: ...tire R radial tires 15 suitable intended rim size The tires have good road holding characteristics and offer good handling on dry and wet surfaces It should be noted however that the tires have been developed to give these features on snow ice free surfaces For optimum road holding on icy or snow covered roads we recommend suitable winter tires When replacing tires be sure that the new tires are t...

Page 65: ...warm during use After cooling when the vehicle is parked the tires have a tendency to distort slightly forming flat spots These flat spots can cause vibrations similar to the vibrations caused by balanced wheels They do however disappear when the tire warms up The degree to which flat spots form depends on the type of cord used in the tire Remember that in cold weather it takes longer for the tire...

Page 66: ...eck the tire pressure when refueling The tire pressure should be corrected only when the tires are cold With warm tires correct only when the pressure is too low The tire temperature rises after driving just a few miles Vehicle Loading The tires on your Volvo will perform to specifications at all normal loads when inflated as recommended on the tire information label located on the rear facing sid...

Page 67: ...ON CALL Road Assistance Special spare tire 64 Changing a wheel 65 Replacing bulbs 67 Replacing fuses 73 Replacing wiper blades 76 Troubleshooting 77 pg 64 Spare tire WARNING Current legislation prohibits the use of the Special Spare tire other than as a temporary replacement for a punctured tire In other words it must be replaced as soon as possible by a standard tire Roadholding etc may be affect...

Page 68: ...g 65 Tire changing Changing a tire The spare tire is located in the trunk beneath the carpet The crank handle is located beneath the carpet next to the spare tire The jack and tool bag has are located in a compartment on the floor on the right hand side of the trunk Before using the jack make sure the car is standing on firm level ground Apply the parking brake Place the transmission selector leve...

Page 69: ...en NOTE To avoid excessive wear and the necessity of rebalancing mark and reinstall wheels in same location as before removal To lessen the chance of imbalance each wheel hub is equipped with a guide stud to ensure that a removed wheel can be reinstalled in its original position as when changing over to winter tires wheels pg 66 Tire changing file K ownersdocs 1989 1989_780 89780_05 htm 3 of 18 12...

Page 70: ...be extended under a car supported by a jack Use the jack intended for the car when replacing a wheel For any other job use stands to support the end of the car being worked on Apply the parking brake select position P automatic transmission Block the wheels standing on the ground Use rigid wooden blocks or large stones The jack should be kept well greased Installing the wheel Clean the contact sur...

Page 71: ...orrect type and voltage Failure to do so could cause the bulb failure warning light to activate pg 68 Replacing bulbs Replacing bulbs front Access to the bulbs is obtained from the engine compartment 1 Switch off the lights and starting ignition key 2 Do not remove the connector from the bulb holder Turn the bulb holder slightly counterclockwise and withdraw the bulb holder and bulb 3 Remove the b...

Page 72: ...aced from inside of trunk 1 Unscrew and remove tail light inside cover Note that inside cover is hooked at the lower edge 2 Turn bulb holder approx 3 8 1 cm counterclockwise and remove it 3 Depress bulb in bulb holder turn it slightly counterclockwise and remove it 4 Install a new bulb Install bulb holder in tail light 5 Turn bulb holder clockwise Check that bulb lights Replace tail light inside c...

Page 73: ...BA 15s 1156 6 Rear turn signal 32 21 BA 15s 1156 7 Tail light 4 5 BA 15s 67 8 Tail light 4 5 BA 15s 67 pg 70 Replacing bulbs High level brake light Remove the cover by pressing downwards Access to the bulb is gained by turning the bulb holder anticlockwise To remove the bulb turn anticlockwise Replace bulb and cover Bulbs Power Socket file K ownersdocs 1989 1989_780 89780_05 htm 7 of 18 12 30 2006...

Page 74: ...ve bulb housing Remove and replace bulb Bulbs Power Socket Rear reading lights 5 W W2 1x9 5d pg 71 Replacing bulbs Engine compartment light Insert a screwdriver and pry off the light assembly Lift it out to remove Replace the bulb Bulbs Power Socket file K ownersdocs 1989 1989_780 89780_05 htm 8 of 18 12 30 2006 8 24 25 AM ...

Page 75: ...Power Socket Trunk light 10 W SV8 5 License plate light Slide the bulb housing backwards until it is released from the front edge Pull out the lamp housing and replace the bulb Insert the front edge of the lamp housing and press up the rear edge by hand Bulbs Power Socket License plate light 4 W BA 9s file K ownersdocs 1989 1989_780 89780_05 htm 9 of 18 12 30 2006 8 24 25 AM ...

Page 76: ...ion before reinstalling the bulb housing Bulbs Power Socket Interior light 10 W SV8 5 Reading light 5 W W2 1x9 5d Door warning lamps All doors are equipped with red warning lamps To replace a bulb insert a screwdriver as shown in picture and gently turn it to remove the lens Withdraw the bulb replace it and re insert the lens Bulbs Power Socket file K ownersdocs 1989 1989_780 89780_05 htm 10 of 18...

Page 77: ... new bulb and replace the lens Bulbs Power Socket Door step courtesy lights 5 W SV8 5 pg 73 Fog lights Fuses Fog lights Remove the Phillips screws securing the corner strips and pull out the reflector Remove the spring clips holding the bulb Withdraw the connector and install a new bulb Replace parts in the reverse order Observe TOP on the lens file K ownersdocs 1989 1989_780 89780_05 htm 11 of 18...

Page 78: ...se for the ABS braking system is located under the instrument panel to the left of the steering wheel To obtain access to the central electrical unit Remove the ashtray Pull out and depress the tongue Press up the section marked electrical fuses press and remove the unit There are 25 fuses in two rows See following pages for fuse designations locations pg 74 Fuses It is necessary to remove the fus...

Page 79: ... to use one with the same amperage and color as the one removed see top of fuse Spare fuses are located on each side of the fusebox lxl5A lx25A lx30A pg 75 Fuses Location AMPERAGE 1 Fuel pump fuel injection system 25 2 Central locking hazard warning flashers headlight flashers 25 3 Fog lights 15 4 Brake lights trunk lid switch 15 5 Glove compartment light clock radio engine compartment light inter...

Page 80: ...roof 15 22 Seat belt light RH parking lights front and rear storage compartment behind parking brake fog lights front 15 23 Relay power front seats 15 24 Power front seat passenger s side 30 25 Fog lights 15 26 Power front seat driver s side 30 ABS A 1OA fuse for this system is located under the instrument panel to the left of the steering wheel Refer to fuse location chart at the fusebox for fuse...

Page 81: ...tool kit are listed The engine does not start or is difficult to start The instructions for starting the engine have not been followed Follow the instructions in section Starting the engine The battery is poorly charged or dead Start the vehicle by using an auxiliary battery Recharge the battery Find out why the battery is poorly charged Poor contact in the electrical system Check all leads to spa...

Page 82: ...e in a warm garage and add a fuel line de icer to the fuel system Blocked air filter fuel filter Change filter pg 78 Service diagnosis Tire imbalance or vibration during driving Wheel imbalance Have the wheels re balanced Incorrect tire pressure Check and adjust tire pressure Level of oil in power assisted steering pump too low Check and fill oil see section Power steering fluid Engine overheats R...

Page 83: ...llustration and turn the screw to close or to open the roof as desired Emergency power seat operation If because of an electrical fault e g a blown fuse check fuses 23 24 and 26 it is not possible to operate the power seat electrically then it is possible to operate it manually using the crank supplied with the tool kit 1 To adjust backrest tilt Insert key in small hole in the side casing and turn...

Page 84: ...1989 Volvo 780 until it seats then turn to reposition seat pg 80 Contents Top of Page file K ownersdocs 1989 1989_780 89780_05 htm 18 of 18 12 30 2006 8 24 26 AM ...

Page 85: ...e car 86 Cleaning the upholstery 88 pg 82 Rustproofing What causes rust The two most common causes of rust to your car are The accumulation of road dirt and moisture in hard to get at cavities and other areas under the car The removal of paint and protective coatings on the outside of the car and underneath through damage by stones gravel or minor accidents Several factors influence the speed at w...

Page 86: ...ore important in those areas where road salt is used for de icing the relative humidity is higher air pollution is present and temperatures regularly stay above freezing Rustproofing inspection and touching up Your Volvo was carefully and thoroughly rustproofed at the factory The underbody and wheelhousings were sprayed with a thick durable rustproofing compound and the beams internal cavities and...

Page 87: ...hin After completion of all work on the vehicle remove excess rustproofing compound with a cloth soaked in kerosene The sheet metal surfaces of the engine compartment are protected by a transparent wax based rustproofing compound The compound withstands normal washings without detoriation Mineral based solvents will however dissolve the compound especially so if they contain emulgators In such cas...

Page 88: ...be clean and dry The surface temperature should be above 60 F 15 C Scars on the surface If the stone chip has not penetrated down to the metal and an undamaged layer of paint remains the touch up paint can be applied as soon as the spot has been cleaned Deep scars If the stone chip has penetrated down to the metal proceed as follows 1 Place a strip of masking tape over the damaged surface Pull the...

Page 89: ...paint on fender edges and sills Material Primer spray can Paint spray can Masking tape Note When touching up the car it should be well cleaned and dry and have a temperature exceeding 60 F 15 C When large surfaces have to be repainted suitably mask the surrounding area with masking tape and paper Remove this masking as soon as the final coat has been sprayed on before the paint dries 1 Remove loos...

Page 90: ...soluble grease solvent may be used in cases of sticky dirt However use a wash place equipped with a drainage separator Dry the car with a clean chamois and remember to clean the drain holes in the doors and rocker panels Tar spots can be removed with kerosene or tar remover after the car has been washed After washing lubricate the electrically operated antenna mast with a cloth soaked in oil A sti...

Page 91: ...ially in the winter Some automatic washers do not have facilities for washing the underbody Before driving into an automatic wash make sure that side view mirrors auxiliary lamps etc are secure otherwise there is risk of the machine dislodging them You should also lower the antenna We recommend that you do not wash your car in an automatic wash during the first six months because the paint will no...

Page 92: ...re difficult spots consult your Volvo dealer On no account must gasoline naphtha or similar cleaning agents be used on the leather since these can cause damage Cleaning the seat belts Clean only with lukewarm water and mild soap solution Cleaning floor mats The floor mats should be vacuumed or brushed clean regularly especially during the winter when they should be taken out for drying Spots on te...

Page 93: ...luid brake fluid 96 Exhaust emission service 97 Transmission fluid 102 Coolant 103 Lubrication body 104 Drive belts 105 Washer fluid 106 Label information 107 pg 90 Servicing 1989 MAINTENANCE SCHEDULE 780 A Adjust Correct if necessary R Replace I Inspect Correct or Replace if necessary L Lubricate Maintenance Operation Miles 600 1 200 5 000 10 000 15 000 20 000 25 000 30 000 35 000 40 000 45 000 5...

Page 94: ...n Fluid I I I I R I I I R I I I R Rear Axle Oil R I I I I I I I I I I I I Timing Belt 780 Turbo only A R Exhaust System B 280 F only I I I I I I I 1 See section Engine Oil for detailed information 2 For services beyond 60 000 miles 96 000 km consult your Maintenance Record Manual and Maintenance Service Chart 3 Recommended but not mandatory to maintain Volvo emission warranty 4 Not B 280 F pg 91 S...

Page 95: ... level Radiator coolant level Tire pressure all five tires Operation of all lights Horns Windshield wipers Level of windshield washer fluid The following should also be carried out at regular intervals Washing Polishing Cleaning Rust protection pg 92 Maintenance service MAINTENANCE Maintenance services Your Volvo has passed two major inspections before being delivered to you according to Volvo spe...

Page 96: ...ires vehicle manufacturers to furnish written instructions to the ultimate purchaser to assure the proper function of those components that control emissions The maintenance instructions listed in the Servicing section of this Manual represent the minimum maintenance required These services are not covered by the warranty You will be required to pay for labor and material used Refer to your Warran...

Page 97: ...raining the oil Drain the oil after driving while it is still hot WARNING The oil may be very hot To add or change engine oil Add oil of the same kind as already used Capacity including filter 6 3 US qts 6 liters 780 4 0 US qts 3 85 liters 78O Turbo if oil cooler is drained add 0 7 US qts 0 6 liters Changing oil filter Replace the oil filter at every change pg 95 Engine oil 5 000 mile 8 000 km oil...

Page 98: ...eriods of idling and or low speed operation Frequent short trips less than 7 miles 11 km Extended periods of driving in dusty and or sandy areas Trailer towing Driving mountainous areas EVERY 3 MONTHS OR EVERY 5 000 miles 8 000 km WHICH EVER COMES FIRST Primarily highway driving Frequent trips of longer than 7 miles 11 km EVERY 6 MONTHS OR EVERY 5 000 miles 8 000 km WHICH EVER COMES FIRST SAE 15W ...

Page 99: ...t must not be above the HOT mark Top up with ATF if the level drops to below the ADD mark 780 Turbo The fluid level should lie between the MIN and MAX on the side of the dipstick The space between the marks corresponds to 0 2 US qts liters Fluid type ATF Replace no fluid change required pg 97 Servicing Torque manifold nuts The manifold nuts should be torqued at the 600 1 200 mile 1 000 2 000 km in...

Page 100: ...0 miles 96 000 km The filter is replaced as one complete unit Replace more frequently if contaminated fuel is introduced into the tank or if there is reason to suspect that this has occurred Timing Belt Turbo Model only The timing belt should be adjusted at the 600 1 200 mile 1 000 2 000 km inspection We recommend that the belt be replaced every 50 000 miles 80 000 km pg 98 Servicing 1 Battery 2 I...

Page 101: ...System This is an emission control system designed to Reduce emissions and improve fuel economy An oxygen sensor monitors the composition of the exhaust gases leaving the engine The exhaust gas analysis is fed into an electronic unit which continually influences the injectors This adjusts the air fuel ratio to provide optimum conditions for combustion and efficient reduction of the three major pol...

Page 102: ...e vehicle timing light tach dwell tester ignition oscilloscope etc Replacing ignition components e g plugs coil distributor HT leads etc Do not touch any part of the ignition system while the engine is running This may result in unintended movements and body injury Replacing spark plugs The spark plugs should be changed every 30 000 miles 48 000 km However city driving or fast highway driving may ...

Page 103: ... level as follows Park the car on level surface with the engine idling Slowly move the selector lever through all the gear positions and then to position P Wait 2 minutes before checking the oil level As the illustration shows the dipstick has a Cold and a Warm side The oil level should be between the MIN and MAX marks Wipe the dipstick with a clean cloth WARNING The oil may be very hot Do not use...

Page 104: ...ling Add coolant until the level is up to the MAX mark or slightly above Start the engine and run until hot Check the cooling system connections for tightness Also re check the coolant level Capacity See Specifications Coolant Volvo Coolant Type C blue green CAUTION The cooling system must always be kept filled to correct level If it is not kept filled there can be high local temperatures in the e...

Page 105: ...ry wear the body should be lubricated a few times per year pg 105 Drive belts Checking the belt tension The belt tension can be checked by depressing the fan belt engine not running at a point midway between the alternator and fan It should be possible to press down the belt About 1 8 1 3 mm This also applies to other Drive belts on the engine Belt check Check the belts regularly to make sure they...

Page 106: ...ence concerning your vehicle with the dealer and when ordering parts 1 Vehicle identification number VIN VIN plate is located on top left surface of dashboard The VIN is also stamped on the right hand door pillar 2 Vehicle emission control information Your Volvo is designed to meet all applicable safety and emissions standards as evidenced by the certification label on the panel above right headli...

Page 107: ...e label Label on left rear door frame Information on certain components All specifications are subject to change without notice Contents Top of Page file K ownersdocs 1989 1989_780 89780_07 htm 15 of 15 12 30 2006 8 24 29 AM ...

Page 108: ...3 Dimensions and weights Length 188 6 479 cm Width 68 9 175 cm Height 55 1 140 cm Wheelbase 109 277 cm Track front 57 9 147 cm rear 59 8 152 cm Turning circle between curbs 32 5 ft 9 9 m Trunk capacity 14 3 cu ft 0 406 m Gross Vehicle Weight GvW 4295 lbs 1950 kg Capacity weight 890 lbs 405 kg Permissible axle weight front 2150 lbs 975 kg file K ownersdocs 1989 1989_780 89780_08 htm 1 of 9 12 30 20...

Page 109: ...angle Aluminum cylinder block with cast iron replaceable wet liners Aluminum alloy cylinder head has separate inlet and exhaust passages Single overhead camshafts Engine lubrication is provided by a gear pump driven from crankshaft Full flow type oil filter Exhaust emission control accomplished by fuel Injection Lambda sond system and catalytic converter Closed crankcase ventilation system and eva...

Page 110: ...ooler Electronic wastegate control optimization Type designation Volvo B280F Turbo Output SAEJ 1349 175 hp at 5400 rpm 130 kW at 88 rps Max torque SAEJ 1349 187 ft lbs 253 Nm at 2900 rpm Number of cylinders 4 Bore 3 78 96 mm Stroke 3 15 80 mm Displacement 2 32 liters Compression ratio 8 7 1 Valve clearance cold engine Checking Adjusting inlet 0 014 0 018 0 35 0 45 mm 0 016 0 018 0 40 0 45 mm exhau...

Page 111: ...ving with frequent deceleration or high speed driving Viscosity stable ambient temperatures Automatic Transmission fluid Quality ATF Dexron IID Capacity 7 9 qts 7 5 liters Rear axle oil Quality API GL 5 MIL L 2105 B or C SAE 90 Capacity 1 7 qts 1 6 liters Power steering fluid Quality ATF Capacity 780 Turbo 1 05 US qts 1 0 liters 780 GLE 0 7 US qt 0 7 liter Brake fluid Brake fluid type DOT 4 Capaci...

Page 112: ...W 4 cp BA 15 s Brake light 1156 21 W32 cp BAY 15 s High mounted brake light 20 W Ba 9 s Back up lights 1156 21 W 32 cp BA 15 s Rear fog lights 1156 21 W 32 cp BA 15 s Fog lights 55 W H3 License plate light 5 W BA 9 s Door warning lights 3 W W 2 1 x 9 5d Interior light 10 W SV 8 5 Reading lights 5 W W 2 1 x 9 5d Engine compartment light 10 W SV 8 5 Trunk light 10 W SV 8 5 Glove box light 2 W BA 9 s...

Page 113: ... car but include fuel coolant and spare wheel Toe in measured on the wheel rim 3 32 l 64 2 5 0 5 mm tire sides 1 8 1 32 3 0 8 mm Rear Suspension Sedans Multi link rear wheel suspension consisting of four elements per side a trailing support arm with coil spring and load leveling shock absorber an upper L shaped link a lower transverse link and an angled rear track rod to control wheel toe in Toe i...

Page 114: ...tank approx 21 US gal 80 liters 21 US gal 80 liters Cooling System 10 6 US qts 10 liters 10 US qts 9 5 liters Engine at oil change 6 3 US qts 6 0 liters 4 0 US qts 3 85 liters Engine excl oil filter 6 3 US qts 6 0 liters 3 5 US qts 3 35 liters Automatic transmission AW71 7 9 US qts 7 5 liters 7 9 US qts 7 5 liters Rear axle 1 7 US qts 1 6 liters 1 7 US qts 1 6 liters Power steering gear 1 05 US qt...

Page 115: ...tained from your Volvo dealer or by mail directly from Volvo Cars of North America One Volvo Drive Rockleigh New Jersey 07647 Attention Volvo Service Literature Note that the above pertains to vehicles sold in the U S A only All specifications are subject to change without notice Volvo supports Voluntary Mechanic Certification by the N I A S E Certified mechanics have demonstrated a high degree of...

Page 116: ...r road assistance program named ON CALL Additional information features and benefits are described in a separate information package in your glove compartment Contents Top of Page file K ownersdocs 1989 1989_780 89780_08 htm 9 of 9 12 30 2006 8 24 30 AM ...

Page 117: ...103 113 Anti lock Braking System ABS 12 Anti rust treatment 82 Ash trays 18 Automatic transmission driving with 45 Automatic transmission oil 102 B Battery 111 Body and chassis 104 Brake fluid 96 Brakes 55 Break in period 42 Bulb failure warning light 11 Bulbs 67 111 C Capacities 113 file K ownersdocs 1989 1989_780 89780_09 htm 1 of 7 12 30 2006 8 24 31 AM ...

Page 118: ... lights 10 Coolant 103 Coolant drain 103 Cooling system 48 Cruise control 16 D Defroster 22 Demister 22 Diagnosis 77 Dimensions and weights 108 Dipstick 94 Doors and locks 34 Drain plug engine 94 Drive belts 105 Driving economy 48 Driving with trunk lid open 49 E Electrical system 49 111 Electrically operated windows 20 Electronic Climate Control ECC 21 23 file K ownersdocs 1989 1989_780 89780_09 ...

Page 119: ...2 Fuel requirements 42 Fuel gauge 8 9 Fuel tank cap 43 97 Fuses 73 G Gas filler cap 43 97 Gasoline requirements 42 Gear shift positions 45 H Hand brake 18 Hazard warning flasher 14 Headlight flasher 14 Headlights 14 replacement 68 Heated side door mirrors 19 Heating 21 Hood lock 37 Horn 7 I Ignition and steering wheel lock 15 Instrument lights 8 file K ownersdocs 1989 1989_780 89780_09 htm 3 of 7 ...

Page 120: ...aintenance service 90 Moon roof 27 O Octane rating 42 Odometer 8 Oil change engine 94 95 transmission 102 Oil filter 94 95 Oil pressure 11 On call 114 Overdrive 53 P Paint touch up 84 Parking brake 18 Parking lights 14 Polishing 87 Power steering fluid 96 Power train 112 R Radios 13 file K ownersdocs 1989 1989_780 89780_09 htm 4 of 7 12 30 2006 8 24 31 AM ...

Page 121: ...ice diagnosis 77 Servicing 89 Shift positions 45 Shop manuals Volvo 114 Snow chains 61 Snow tires 61 Spare wheel 64 Spark Plugs 101 109 Specifications 108 Speedometer 8 Starting switch steering wheel lock 15 Starting key 5 Steering wheel lock 15 Storage space 38 Sunroof 32 T Tachometer 8 Temperature gauge 8 Tire pressure 62 Tires 61 file K ownersdocs 1989 1989_780 89780_09 htm 5 of 7 12 30 2006 8 ...

Page 122: ...storage 59 Ventilation outlets 21 VIN Vehicle Identification Number 107 W Warning lights 10 Warranty 92 Warranty inspection 92 Washer fluid 57 106 Washer nozzles 106 Washing 86 Waxing 87 Weights 108 Wheel alignment 112 Wheel change 65 Wheels and tires 60 Window lifts 20 Windshield washers 15 106 Windshield wipers 15 Winter driving 57 file K ownersdocs 1989 1989_780 89780_09 htm 6 of 7 12 30 2006 8...

Page 123: ...less gas which is present in all exhaust gases If you ever smell exhaust fumes inside the vehicle make sure the passenger compartment is ventilated and immediately return the vehicle to duller for correction Never sit in a parked or stopped car for any extended amount of time nor have it unattended while engine is running Never operate the engine in confined unventilated areas Contents Top of Page...

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