Operation Manual

Display messages
Possible causes/consequences and M Solutions
F(USA
only)
!(Canada
only)
Parking Brake Inop‐
erative
The yellow ! warning lamp lights up. The red F (USA only)
or ! (Canada only) indicator lamp flashes for about ten seconds
after the electric parking brake has been applied or released. It then
goes out or remains lit.
The electric parking brake is malfunctioning, e.g. because of over-
voltage or undervoltage.
X
Remove the cause for the overvoltage or undervoltage, e.g. by
charging the battery or restarting the engine.
X
Engage or release the electric parking brake.
If it remains impossible to apply or release the electric parking brake:
X
Switch off the ignition and turn it back on.
X
Engage or release the electric parking brake.
If the electric parking brake still cannot be released:
X
Consult a qualified specialist workshop.
If the electric parking brake still cannot be applied:
X
Visit a qualified specialist workshop.
The yellow ! warning lamp lights up and the red F (USA only)
or ! (Canada only) indicator lamp flashes.
It is not possible to apply the electric parking brake manually.
X
Shift the transmission to position P.
X
Visit a qualified specialist workshop.
$(USA
only)
J(Canada
only)
Check Brake Fluid
Level
There is not enough brake fluid in the brake fluid reservoir.
In addition, the $ (USA only) or J (Canada only) warning lamp
lights up in the instrument cluster and a warning tone sounds.
G
WARNING
The braking effect may be impaired.
There is a risk of an accident.
X
Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X
Secure the vehicle against rolling away (Y page 189).
X
Consult a qualified specialist workshop.
X
Do not add brake fluid. This does not correct the malfunction.
#
Check Brake Pad Wear
The brake pads/linings have reached their wear limit.
USA only: the red $ brake system warning lamp also lights up while
the engine is running.
X
Visit a qualified specialist workshop.
G
Inoperative
One or more main features of the mbrace system are malfunctioning.
X
Visit a qualified specialist workshop.
Display messages
283
On-board computer and displays
Z