Warning and indicator lamps in the instrument cluster
230
Problem
!
The yellow ABS warning
lamp is lit while the
engine is running.
!
The yellow ABS warning
lamp is lit while the
engine is running.
Possible causes/consequences and M Solutions
G
Risk of accident
ABS (Anti-lock Brake System) is deactivated due to a malfunction.
BAS (Brake Assist), BAS PLUS, ESP
®
Program), PRE-SAFE
Brake, the HOLD function and hill start
assist are therefore also deactivated, for example.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
ATTENTION ASSIST is deactivated.
Observe the additional display messages in the multifunction
X
display.
Drive on carefully.
X
Visit a qualified specialist workshop.
X
G
Risk of accident
ABS is temporarily unavailable. BAS, BAS PLUS, ESP
(electronic brake force distribution), PRE-SAFE
function, hill start assist are therefore also deactivated, for
example.
Self-diagnosis is not yet complete or the on-board voltage may be
insufficient, for example.
The brake system continues to function normally, but without the
functions listed above. The wheels could therefore lock if you
brake hard, for example.
ATTENTION ASSIST is deactivated.
Carefully drive a short distance on a suitable stretch of road,
X
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:
Observe the additional display messages in the multifunction
X
display.
Drive on carefully.
X
Visit a qualified specialist workshop.
X
®
(Electronic Stability
®
, EBD
®
Brake, the HOLD