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Warning/
indicator
lamp
NN Signal type
Possible causes/consequences and MM Solutions
!
N The yellow ABS warning lamp is lit while the engine is running.
ABS (Anti-lock Braking System) is deactivated due to a malfunction. Therefore,
BAS (Brake Assist), Active Brake Assist, ESP
®
(Electronic Stability Program), the
HOLD function and hill start assist, for example, are also deactivated.
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 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
Observe the additional display messages in the multifunction display.
X
Drive on carefully.
X
Visit a qualified specialist workshop immediately.
If the ABS control unit is defective, there is also a possibility that other systems,
such as the navigation system or the automatic transmission, will not be available.
!
N The yellow ABS warning lamp is lit while the engine is running.
ABS is temporarily unavailable. Therefore, BAS, Active Brake Assist, ESP
®
, EBD
(electronic brake force distribution), the HOLD function and hill start assist, for
example, are also deactivated.
Possible causes are:
R
self-diagnosis is not yet complete
R
the on-board voltage may be insufficient
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the functions listed
above. The front and rear wheels could therefore lock if you brake hard, for exam-
ple.
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 a risk of an accident.
X
Carefully drive a suitable distance, making slight steering movements at a speed
above 12 mph (20 km/h).
The functions mentioned above are available again when the warning lamp goes
out.
If the warning lamp is still on:
X
Observe the additional display messages in the multifunction display.
X
Drive on carefully.
X
Visit a qualified specialist workshop immediately.
222
Warning and indicator lamps in the instrument cluster
On-board computer and displays
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