Mercedes Benz 2009 M-Class User Manual

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Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
Visit workshop
The air suspension* is malfunctioning.
Do not drive faster than 50 mph 
(80 km/h) depending on the set vehi-
cle level.
Have the vehicle checked at an autho-
rized Mercedes-Benz Light Truck 
Center.
Compressor
cooling down
You have selected a higher vehicle level*. 
Due to frequent level changes within a 
short period, the compressor must first 
cool down.
Let the compressor cool until the 
message disappears.
The selected level will be set once the 
compressor has cooled.
!
When the message 
Compressor cooling 
down appears in the multifunction display, 
driving is still possible. Keep in mind that the ride 
height of the vehicle is not yet reached, so you 
can damage the underbody of the vehicle. The 
selected level will be set once the compressor 
has cooled.