Mercedes-Benz 2013 M Class - Manual (Page 286)

Display messages Possible causes/consequences and M Solutions
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The steerability and braking characteristics may be severely
affected. The braking distance in an emergency braking situation
can increase.
If ESP
® is not operational, ESP ® is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately.
÷
Currently
Unavailable See
Operator's Manual
ESP ® , BAS, PRE-SAFE ® , the HOLD function, hill start assist and
ESP ® trailer stabilization are unavailable due to a malfunction.
COLLISION PREVENTION ASSIST, BAS PLUS and
PRE-SAFE
® Brake may also have failed.
In addition, the ÷ and å warning lamps light up in the
instrument cluster.
The self-diagnosis function might not be complete, for example.
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
The braking distance in an emergency braking situation can thus
increase.
If ESP
® is not operational, ESP ® is unable to stabilize the vehicle.
There is an increased risk of skidding and an accident.
X Carefully drive a short distance on a suitable stretch of road,
making slight steering movements at a speed above 12 mph
(20 km/h).
If the display message disappears, the functions mentioned
above are available again.
If the display message continues to be displayed:
X Drive on carefully.
X Visit a qualified specialist workshop.
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Display messages
On-board computer and displays