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Display messages
J
Driving and brak‐
ing characteris‐
tics changed
Ï
4-wheel parking
brake not assured
ú
Set driving level
Ò
Distance sensor
dirty
On-board computer event window
Possible causes/consequences and M Solutions
Supplementary text Û:
In addition, the J warning lamp lights up yellow in the instru-
ment cluster.
The vehicle's brake system is malfunctioning.
G
WARNING
Driving and braking characteristics may change.
There is a risk of an accident.
X
Drive with even greater care. Adapt your driving style to suit the
changed driving and braking characteristics.
X
Have the brake system checked at a qualified specialist work-
shop.
Supplementary text Û:
engine
The function of the four-wheel parking brake is not guaranteed.
G
WARNING
The vehicle is not safely supported and can roll away.
There is a risk of an accident.
X
Apply the parking brake.
or
X
Restart the engine.
Apply the four-wheel parking brake (
The chassis is not at driving level. Distance control assistant and
Active Brake Assist are inoperative.
X
Set the driving level (
Supplementary text Û:
Active Brake Assist and distance control faulty
The distance sensor is dirty. Distance control assistant and Active
Brake Assist are inoperative.
G
WARNING
If distance control assistant and Active Brake Assist are inopera-
tive, you will not receive any collision warnings. The vehicle will not
brake automatically in critical situations.
There is a risk of an accident.
X
Clean the distance sensor covers in the front bumper using
water (
Y
page 346).
Do not use any dry, rough or hard cloths and do not scrub or
scratch.
Visit workshop.
Apply parking brake or start
Y
page 243).
Y
page 288).
Stop vehicle and clean sensor.
181
Z
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