104
MIN
MAX
MIN
MAX
Level control
Filling
Filling and level control of coolant
Before filling: prepare a mixture of anti-freeze and pure wa-
ter. Fill coolant through the filler neck in the expansion tank.
The expansion tank is accessible through the rear engine
cover. Fill slowly to avoid air pockets in the system.
The heater valves should be open and the heating system
turned on while filling.
On buses with roof-mounted air conditioning systems,
where the level of coolant is above the level in the expan-
sion tank, the coolant must be pumped up by starting the
system’s circulation pump.
Gradually top up through the expansion tank until the cool-
ing system is completely full. Check the coolant level after
running the engine warm.
It should be between the MAX and MIN markings on the
expansion tank.
Use the same mixture when topping up. Never fill with cold
coolant in a warm engine! The difference in temperature
may fracture the engine.
A continuous check of the coolant level is carried out while
driving using the coolant level warning light.
Service and Maintenance
Summary of Contents for B10M
Page 1: ...Driver s Manual...
Page 6: ...4 Pay attention to warning and indicator lights Their purpose is to warn of danger...
Page 131: ...129 TechnicalData Type plates 130 Specifications Data 132...
Page 142: ...140 Notes...
Page 143: ...141 Notes...
Page 144: ...142 Notes...
Page 145: ...143 Notes...
Page 146: ...144 Notes...
Page 147: ...3 Notes...
