Mercedes-Benz 2012 A Class - Manual (Page 247)

Display messages Possible causes/consequences and M Solutions
4
Check eng. oil
lev. when next
refuelling
The engine oil level has dropped to the minimum level.
A warning tone also sounds.
X Check the oil level when next refuelling, at the latest
(
Y page 286).
X If necessary, top up the engine oil ( Y page 287).
X Have the engine checked at a qualified specialist workshop if
the engine oil needs topping up more often than usual.
æ
Reserve fuel level
The fuel level has dropped into the reserve range.
The auxiliary heating cannot be operated.
X Refuel at the nearest filling station.
ç There is very little fuel in the fuel tank.
The auxiliary heating cannot be operated.
X Refuel at the nearest filling station without fail.
¸
Replace air cleaner
Vehicles with a diesel engine: the engine air filter is dirty and must
be replaced.
X Visit a qualified specialist workshop.
i This message does not appear for the 180 CDI BlueEFFI-
CIENCY, manual transmission model A.
!
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:
Drowsiness detec‐
ted
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.
Display messages
245
On-board computer and displays
Z