Warning/
indicator
lamp
N
N
Signal type
Possible causes/consequences and
M
M
Solutions
!
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 lis-
ted above. The front and rear wheels could therefore lock if you perform a full
brake application, for example.
The steerability and braking characteristics may be severely affected. The brak-
ing 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.
!
N
The yellow ABS warning lamp is lit while the engine is running. A warning
tone also sounds.
EBD is malfunctioning. Therefore, ABS, BAS, Active Brake Assist, ESP
®
, the
HOLD function and hill start assist, for example, are not available either.
ATTENTION ASSIST is deactivated.
G
WARNING
The brake system continues to function normally, but without the functions lis-
ted above. The front and rear wheels could therefore lock if you perform a full
brake application, for example.
The steerability and braking characteristics may be severely affected. The brak-
ing 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.
234
Warning and indicator lamps in the instrument cluster
On-bo
ard
co
mput
er
and
displays