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Never touch the danger zone surround‐
#
ing moving component parts, e.g. the
rotation area of the fan.
Remove jewelry and watches.
#
Keep items of clothing and hair away
#
from moving parts.
& WARNING Risk of burns from hot com‐
ponent parts in the engine compartment
Certain components in the engine compart‐
ment can be very hot, e.g. the engine, the
radiator and parts of the exhaust system.
Allow the engine to cool down and only
#
touch component parts described in the
following.
If you have to carry out any work in the engine
compartment, touch only the following compo‐
nents:
Hood
R
Engine oil filler opening cap
R
Washer fluid reservoir cap
R
Coolant expansion reservoir cap
R
Open the hood (
/
#
Remove dirt from water drain valve
#
intake box 1.
Draining the fuel filter
& WARNING Danger of fire and explosion
due to fuel
Fuels are highly flammable.
page 264).
2
of air
Maintenance and care 271
It is essential to avoid fire, open flames,
#
smoking and creating sparks.
Before filling up, switch off the engine,
#
and, if applicable, the auxiliary heating.
& WARNING Risk of fire and explosion due
to fuel
Fuels are highly flammable. There is a risk of
fire and explosion due to contact with hot
component parts.
Allow the engine and the exhaust sys‐
#
tem to cool down.
* NOTE Engine damage due to delayed
drainage of the fuel filter
Vehicles with a diesel engine: delayed
drainage of the fuel filter can lead to engine
damage.
If the ! indicator lamp lights up, drain the
fuel filter immediately.
+
ENVIRONMENTAL NOTE Environmental
pollution due to disposal in a non-envi‐
ronmentally-friendly manner
Dispose of the water/fuel mixture in an
#
environmentally-friendly manner.
Motor OM642
Park the vehicle in a safe location and secure
#
it against rolling away.
Switch off the auxiliary heating
#
(
page 101).
/
Switch off the engine.
#
Open the hood (
/
#
page 264).
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