Mercedes-Benz M-Class 2015 Owners Manual - Manual (Page 306)

Driving systems
Display messages Possible causes/consequences and M M Solutions
À
Attention Assist: Attention Assist:
Take a Break! 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 Attention Assist
Inoperative Inoperative
ATTENTION ASSIST is inoperative.
X Visit a qualified specialist workshop.
Á
Drive More Slowly Drive More Slowly
You cannot change the vehicle level. Possible causes are:
R
you are driving too fast for the selected vehicle level.
R you are towing a trailer.
R the trailer-coupling socket is being used, e.g. for a bicycle rack.
X Drive more slowly and then select the desired vehicle level
again.
R
Vehicles with the ON&OFFROAD package (
Y
page 206)
R
Vehicles with the AIRMATIC package (
Y
page 213)
X Observe the notes on towing a trailer (
Y
page 257).
Á
Compressor Compressor Is Is Cool‐ Cool‐
ing ing
You have selected a higher vehicle level. The compressor first
needs to cool down because of frequent level changes.
X Drive in a manner appropriate for the current vehicle level.
X Make sure that there is sufficient ground clearance.
X Allow the compressor to cool down.
When the compressor has cooled down, the display message
disappears. The vehicle then continues rising to the selected
level.
Á
ABC Malfunction ABC Malfunction
AIRMATIC is malfunctioning.
X Drive as appropriate for the current vehicle level, but do not
exceed 50 mph (80 km/h).
X
Make sure that there is sufficient ground clearance.
X
Have the vehicle checked at a qualified specialist workshop.
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Display messages
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