Mercedes-Benz B-Class Operator's Manual page 228

Warning and indicator lamps in the instrument cluster
226
Problem
!
The yellow ABS warning
lamp is lit while the
engine is running.
Possible causes/consequences and M Solutions
ABS is temporarily unavailable. BAS, COLLISION PREVENTION
®
ASSIST, ESP , EBD (electronic brake force distribution), the HOLD
function and hill start assist are therefore also deactivated, for
example.
Possible causes are:
Self-diagnosis is not yet complete.
R
The on-board voltage may be insufficient.
R
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 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
There is a risk of an accident.
X
Carefully drive on a suitable stretch of road, 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.
®
is unable to stabilize the vehicle.