Mercedes-Benz GLS Operator's Manual page 267

Driving systems
Display messages
À
Attention Assist:
Take a Break!
À
Attention Assist
Inoperative
Á
Drive More Slowly
Á
Compressor Is Cool‐
ing
Á
Malfunction
Possible causes/consequences and M Solutions
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.
If necessary, take a break.
X
During long journeys, take regular breaks in good time so you get
enough rest.
ATTENTION ASSIST is inoperative.
Visit a qualified specialist workshop.
X
You cannot change the vehicle level.
Possible causes are:
You are driving too fast for the selected vehicle level
R
You are driving too fast with a trailer or the trailer-coupling socket is
R
being used, e.g. for a bicycle rack
Drive more slowly and then select the desired vehicle level again.
X
Vehicles with the Off-Road Engineering package (
R
Vehicles with the AIRMATIC package (
R
Observe the notes on towing a trailer (
X
You have selected a higher vehicle level. The compressor first needs
to cool down because of frequent level changes.
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.
X
When the compressor has cooled down, the display message dis-
appears. The vehicle then continues rising to the selected level.
AIRMATIC is malfunctioning.
Drive as appropriate for the current vehicle level, but do not exceed
X
50 mph (80 km/h).
Make sure that there is sufficient ground clearance.
X
Visit a qualified specialist workshop.
X
Display messages
page 184)
Y
page 190)
Y
page 225).
Y
265
Z