Maintenance and care
110
Fill / bleed the cooling system (only when engine has cooled down)
Fill the cooling system of the engine with a mixture of drinkable tap water and anti-freeze agent on an ethyl
ene glycole basis or anti-corrosion agent.
Caution:
Use only approved fuels, lubricants etc. (see brochure Fuels, lubricants etc."). Otherwise the liab
ility for defects will become null and void!
When filling, do not fill cold coolant into an engine
that is hot after operation. Make sure, that the cor
rect mixing ratio of “Water - Antifreeze" is main
tained.
D
Unscrew the locking cap (2) of the drain valve
(1)
D
Connect the pump via the hose stem (3) to the
drain valve (1) and start the filling process by
actuating the pump button
Note:
As an alternative to filling the engine with
coolant using a pump, the filler necks (4)
can be used for this purpose.
D
During the filling process the liquid-cooled ex
haust turbochargers have to be vented. Undo
the threaded vent plugs (5). The threaded vent
plugs (5) must remain open until the coolant
emerges bubble-free or until the coolant
reaches the filler neck (4) depending on the in
stalled position). For the coolant filling quantity,
see “Technical data", from page 107
D
Tighten the threaded vent plugs (5) back in and
screw on cap (4) all the way, but do not tighten
yet.
Caution:
Overtightened caps can not be opened
again.
D
Unscrew the hose stem (3) and screw on and
tighten the locking cap (2)
D
Let the engine run at a speed of 2000 1/min for
approx. 15 minutes
1
3
2
4
5
