Display messages
Possible causes/consequences and
M
M
Solutions
Ø
Eng. start not pos‐
Eng. start not pos‐
sible in ..km
sible in ..km
The AdBlue
®
system is malfunctioning. A warning tone also sounds.
X
Consult a qualified specialist workshop immediately.
Ø
Eng. start not pos‐
Eng. start not pos‐
sible
sible
The AdBlue
®
system is malfunctioning. A warning tone also sounds.
You can no longer start the engine.
X
Consult a qualified specialist workshop immediately.
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
increasing lapses in 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
Attention Assist
inoperative
inoperative
ATTENTION ASSIST is inoperative.
X
Consult a qualified specialist workshop.
Á
Please reduce speed
Please reduce speed
You cannot change the vehicle level.
Possible causes:
R
You are driving too fast for the selected vehicle level.
R
You are driving too fast with a trailer or the trailer tow hitch socket
is being used, e.g. for a rear-mounted cycle rack.
X
Drive more slowly and then select the desired vehicle level again:
R
Vehicles with the Off-Road Engineering package (
Y
page 192)
R
Vehicles with the AIRMATIC package (
Y
page 198)
X
Observe the notes on towing a trailer (
Y
page 234).
Á
Compressor is cool‐
Compressor is 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
Ensure sufficient ground clearance.
X
Allow the compressor to cool down.
When the compressor has cooled down, the display message dis-
appears. The vehicle then continues rising to the selected level.
Display messages
275
On
-b
oar
d
comp
ut
er
an
d
di
sp
lay
s
Z