Mercedes-Benz M-Class Owner's Manual page 323

Engine compartment
320
Lower the bonnet and let it fall from a
X
height of approximately 20 cm.
Check that the bonnet has engaged prop-
X
erly.
If the bonnet can be raised slightly, it is not
properly engaged. Open it again and close
it with a little more force.
Radiator
i
Vehicles with diesel engine: do not
cover the radiator. Do not use thermal
mats, insect protection covers or anything
similar. Doing so can cause the Onboard
Diagnostics System to display inaccurate
values. Some of these values are legally
required and must be correct.
Engine oil
Notes on the oil level
Depending on driving style, the vehicle con-
sumes a maximum of 0.8 l oil per 1000 km.
The oil consumption may be higher than this
when the vehicle is new or if you frequently
drive at high engine speeds.
Checking the oil level using the oil dip-
stick
Example: vehicles with a petrol engine
Example: vehicles with a diesel engine
Park the vehicle on a level surface.
X
To check the oil level with the engine at
normal operating temperature, switch the
engine off and wait for approximately five
minutes.
Pull oil dipstick : out of the oil dipstick
X
tube.
Wipe off oil dipstick :.
X
Slowly slide oil dipstick : into the guide
X
tube to the stop, and take it out again.
If the level is between MIN mark = and
MAX mark ;, the oil level is correct.
If the oil level has dropped to MIN mark
X
= or below it, top up with
0.5 to 1.0 litres of engine oil.
Adding engine oil
G
WARNING
If engine oil comes into contact with hot
engine parts, it may ignite and you could burn
yourself. Do not spill any engine oil on hot
engine parts.
H
Environmental note
When topping up the oil, take care not to spill
any. If oil enters the soil or waterways, it is
harmful to the environment.
! Do not add too much oil. If the oil level is
above the "max" mark on the dipstick, too
much oil has been added. This can lead to
damage to the engine or the catalytic con-
verter. Have excess oil siphoned off.