Mercedes-Benz CLS-Class 2013 Owners Manual - Manual (Page 244)

Display messages Possible causes/consequences and M Solutions
4
Check Eng.Oil Level
AMG vehicles: the engine oil level is too low.
X Check the oil level when next refueling, at the latest
(
Y page 299).
X If necessary, add engine oil ( Y page 300).
X Have the engine checked at a qualified specialist workshop if
engine oil needs to be added more often than usual.
! Avoid long journeys with too little engine oil. The engine will
otherwise be damaged.
Information on approved engine oils can be obtained from any
qualified specialist workshop or on the Internet at http://
www.mbusa.com (USA only).
8
Fuel Level Low
The fuel level has dropped into the reserve range.
X Refuel at the nearest gas station.
C There is only a very small amount of fuel in the fuel tank.
X Refuel at the nearest gas station without fail.
8
Gas Cap Loose
The fuel system pressure is too low. The fuel filler cap is not closed
correctly or the fuel system is leaking.
X Check that the fuel filler cap is correctly closed.
If the fuel filler cap is not correctly closed:
X Close the fuel filler cap.
If the fuel filler cap is correctly closed:
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 you get
enough rest.
À
Attention Assist
Inoperative
ATTENTION ASSIST is inoperative.
X Visit a qualified specialist workshop.
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On-board computer and displays