Mercedes-Benz CLS 2012, Owner'S Manual

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Display messages Possible causes/consequences and M Solutions
C
There is only a very small amount of fuel in the fuel tank.
The auxiliary heating cannot be operated.
X
Refuel at the nearest filling station without fail.
¸
Please replace air
cleaner
Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
X
Visit a qualified specialist workshop.
!
Clean the fuel fil‐
ter
Vehicles with a diesel engine: there is water in the fuel filter. The
water must be drained off.
X
Visit a qualified specialist workshop.
Driving systems
Display messages Possible causes/consequences and M Solutions
À
Attention Assist:
Take a break!
Based on certain criteria, ATTENTION ASSIST has detected fatigue
or a lack of concentration on the part of the driver. A warning tone
also sounds.
X
If necessary, take a break.
During long journeys, take regular breaks in good time so that you
get enough rest.
À
Attention Assist
inoperative
ATTENTION ASSIST is inoperative.
X
Visit a qualified specialist workshop.
¨
or
°
Vehicle rising
Your vehicle is adjusting to the level you have selected.
¨
or
°
Vehicle rising
Please wait
The vehicle level is too low when the vehicle is stationary. A warn-
ing tone also sounds.
X
Do not pull away.
The vehicle level is set when the display message disappears.
Display messages
261
On-
boar
d
comp
ut
er
and
dis
pla
ys
Z