Mercedes-Benz GLK 300 4MATIC 2012 Owner's Manual page 271

Display messages
268
Display messages
#
4
Check eng. oil Check eng. oil
lev. when next lev. when next
refuelling refuelling
8
Reserve fuel level Reserve fuel level
C
¸
Please replace Please replace air
filter filter
Possible causes/consequences and M M Solutions
The battery is not being charged.
A warning tone also sounds.
Possible causes:
faulty alternator
R
torn poly-V-belt
R
a malfunction in the electronics
R
Stop the vehicle immediately, paying attention to road and traf-
X
fic conditions, and switch off the engine.
Secure the vehicle against rolling away (
X
Open the bonnet.
X
Check whether the poly-V-belt is torn.
X
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise overheat.
Consult a qualified specialist workshop.
X
If the poly-V-belt is OK:
Visit a qualified specialist workshop.
X
The engine oil level has dropped to the minimum level.
A warning tone also sounds.
Check the oil level when next refuelling, at the latest
X
( page 315).
Y
If necessary, top up the engine oil (
X
Have the engine checked at a qualified specialist workshop if
X
the engine oil needs topping up more often than usual.
The fuel level has dropped into the reserve range.
Operation of the auxiliary heating is deactivated if the fuel level
drops into the reserve range.
Refuel at the nearest filling station.
X
There is only a very small amount of fuel in the fuel tank.
The auxiliary heating cannot be operated.
Refuel at the nearest filling station without fail.
X
Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
air
Visit a qualified specialist workshop.
X
page 164).
Y
page 316).
Y