2011 MERCEDES-BENZ B-CLASS HATCHBACK parking brake
[x] Cancel search: parking brakePage 211 of 329
Display messages Possible causes/consequences and
M Solutions
÷
inoperative See
Owner's Manual ESP
®
, BAS, PRE-SAFE ®
, the HOLD function, hill start assist and
ESP ®
trailer stabilisation are no tavailable due to a malfunction.
The adaptive brake lights and BAS PLUS may also have failed.
In addition, the ÷andå warning lamps light up in the
instrument cluster.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but without the
functions listed above.
If ESP ®
is deactivated or not operational, the vehicle's stability
during standard driving manoeuvres is reduced.
There is a risk of accident.
X Drive on carefully.
X Visi taqualified specialist workshop. T!
÷
inoperative See
Owner's Manual EBD (electronic brake force distribution), ABS, ESP
®
, BAS, PRE-
SAFE ®
, the HOLD function ,hill start assist and ESP ®
trailer stabi-
lisatio nare not available due to a malfunction.
The adaptive brake lights and BAS PLUS may also have failed.
In addition, the ÷,åand! warning lamps in the instru-
ment cluster light up and a warning tone sounds.
ATTENTION ASSIST is deactivated.
G WARNING
The brake system continues to function normally, but withou tthe
functions listed above. The wheels could therefore lock if you
brake hard, for example.
This limits the steerability of the vehicle when braking and may
increase the braking distance.
If ESP ®
is deactivated or not operational, the vehicle's stability
during standard driving manoeuvres is reduced.
There is a risk of accident.
X Drive on carefully.
X Visit a qualified specialist workshop immediately. !
Release parking
brake The red
!indicator lamp flashes and a warning tone sounds.
A condition for automatic release of the electric parking brake is
not fulfilled (Y page 145).
You are driving with the electric parking brake applied.
X Release the electric parking brake manually. 208
Display messagesOn-board computer and displays
Page 212 of 329
Display messages Possible causes/consequences and
M Solutions
The red
!indicato rlamp flashes and a warning tone sounds.
You are making an emergency stop using the electric parking
brake (Y page 145). !
Parking brake See
Owner's Manual The yellow
!warning lamp lights up.
The electric parking brake is malfunctioning.
To apply:
X Switch the ignition off.
X Press the electric parking brake handle for at least te nseconds.
X Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shift the transmission
to P.
X Consult a qualified specialist workshop. The yellow
!warning lamp and the red !indicator lamp
are lit.
The electric parking brake is malfunctioning.
To release:
X Switch off the ignition and turn it back on.
X Release the electric parking brake manually.
or
X Vehicles with manual transmission: release the electric park-
ing brake using the automatic emergency release
(Y page 145).
X Vehicles with automatic transmission: release the electric
parking brake automatically ( Ypage 145).
If the yellow !warning lamp remains lit or continues to flash:
X Do not drive on.
X Consult a qualified specialist workshop. Display messages
209On-board computer and displays Z
Page 213 of 329
Display messages Possible causes/consequences and
M Solutions
The red
!indicato rlamp flashes and the yellow !warning
lamp is lit.
The electric parking brake is malfunctioning.
To release:
X Switch off the ignition and turn it back on.
X Release the electric parking brake manually.
To apply:
X Switch off the ignition and turn it back on.
X Engage the electric parking brake manually.
If the red !indicator lamp continues to flash:
X Do not drive on.
X Secure the vehicle against rolling away ( Ypage 299).
X Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shiftthe transmission
to P.
X Turn the front wheels towards the kerb.
X Consult a qualified specialist workshop. The yellow
!warning lamp lights up. The red !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.
X Switch off the ignition and turn it back on.
X Engage the electric parking brake.
If it is not possible to apply the electric parking brake:
X Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shift the transmission
to P.
X Visit a qualified specialist workshop.
If it is not possible to release the electric parking brake:
X Vehicles with manual transmission: release the electric park-
ing brake using the automatic emergency release
(Y page 145).
X Vehicles with automatic transmission: release the electric
parking brake automatically (Y page 145).
If the electric parking brake can still not be released:
X Consult a qualified specialist workshop. 210
Display messagesOn-board computer and displays
Page 214 of 329
Display messages Possible causes/consequences and
M Solutions
The yellow
!warning lamp lights up. If you manually apply or
release the electric parkin gbrake, the red !indicator lamp
flashes.
The electric parking brake is malfunctioning. It is not possible to
apply the electric parking brake manually.
X Vehicles with manual transmission: switch off the ignition.
The electric parking brake is applied automatically.
You can release the electric parking brake using the automatic
emergency release (Y page 145).
X Vehicles with automatic transmission: shift the transmission
to Pas the electric parking brake is not applied automatically.
X Visi taqualified specialist workshop.
i If you do not wish the electric parking brake to be applied,
leave the ignition switched on, e.g. when washing the vehicle in
an automatic car wash or when having the vehicle towed. Excep-
tion :when having the vehicle towed with the front axle raised
(Y page 284). !
Pkg brake inopera‐
tive The yellow
!warning lamp lights up. The red !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 Apply 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 Apply or release the electric parking brake.
If the electric parking brake can still not be released:
X Consult a qualified specialist workshop. The display message is only shown while the vehicle is in motion.
The red
!indicator lamp flashes and the yellow !warning
lamp is lit.
It is not possible to apply the electric parking brake manually.
X Vehicles with manual transmission: engage first gear.
X Vehicles with automatic transmission: shift the transmission
to P.
X Visit a qualified specialist workshop. Display messages
211On-board computer and displays Z
Page 215 of 329
Display messages Possible causes/consequences and
M Solutions
!
Turn on the igni‐
tion to release
the parking brake The red
!indicato rlamp is lit.
You attempted to release the electric parking brak ewhile the igni-
tion was switched off.
X Turn the key to position 1in the ignition lock. J
Check brake fluid
level There is insufficient brake fluid in the brake fluid reservoir.
In addition, the red
Jwarning lamp in the instrument cluster
lights up and a warning tone sounds.
G WARNING
The braking effect may be impaired.
There is a risk of 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 Engage the electric parking brake.
X Do not top up the brake fluid. Topping up will not remedy the
fault.
X Consult a qualified specialist workshop. #
Check brake wear The brake pads/linings have reached their wear limit.
X
Visit a qualified specialist workshop. PRE-SAFE
inoperative See
Owner's Manual Important functions of PRE-SAFE
®
have failed. All other occupant
safety systems, e.g. airbags, remain available.
X Visit a qualified specialist workshop immediately. 212
Display messagesOn-board computer and displays
Page 216 of 329
Display messages Possible causes/consequences and
M Solutions
PRE-SAFE
Functions cur‐
rently limited See
Owner's Manual BA
SP LUS is temporarily inoperative. Possible causes:
R the radars ensor system cover in the radiator grille is dirty.
R function is impaired due to heavy rain or snow.
R the sensors in the bumpers are dirty.
R the radar sensor system is temporarily inoperative, e.g. due to
electromagnetic radiation emitted by nearby TV or radio sta-
tions or other sources of electromagnetic radiation.
R the system is outside the operating temperature range.
R the on-board voltage is too low.
If the display message does not disappear:
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Engage the electric parking brake.
X Clean the radar sensor system cover in the radiator grille
(Y page 270).
X Clean the bumpers (Y page 270).
X Restart the engine.
If the system detects that the sensors are fully operational, the
display message disappears.
BASP LUS is operational again. PRE-SAFE
Functions limited
See Owner's Manual BAS PLUS is faulty. The distance warning signal may also have
failed.
X
Visit a qualified specialist workshop. ü If the symbol appears in the multifunction display,
aseat belt
tongue has been inserted into a rear seat belt buckle.
For further information on the status indicator for the rear seat
belts, (Y page 46). ý If the symbol appears in the multifunction display,
aseat belt
tongue has not been inserted in a rear seat belt buckle.
G WARNING
If you do not wear the seat belt correctly, or it is not properly
engaged in the buckle, it no longer offers the intended level of
protection in the event of an accident.
There is an increased risk of injury.
X If necessary, ask the occupants in the rear to fasten their seat
belts.
For further information on the status indicator for the rear seat
belts, (Y page 46). Display messages
213On-board computer and displays Z
Page 220 of 329
Display messages Possible causes/consequences and
M Solutions
b
Left brake lamp
or
Right brake lamp The lef
torright-hand brake lamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Visit a qualified specialist workshop. b
Left-hand tail
lamp/brake lamp or
Right-hand tail lamp/brake lamp The left or right-hand tail lamp/brake lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Visit a qualified specialist workshop. b
Left main beam
or
Right main beam The left or right-hand high beam is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Visit a qualified specialist workshop. b
Number plate lamp The left or right-hand licence plate lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Visit a qualified specialist workshop. b
Left fog
lamp orRight fog
lamp The left-hand or right-hand front foglamp is faulty.
X Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Visit a qualified specialist workshop. b
Rear fog lamp The rear foglamp is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Visit a qualified specialist workshop. b
Front
left parking
lamp or
Front right parking lamp The front left or front right parking lamp is faulty.
X
Check whether you are permitted to replace the bulb yourself
(Y page 103).
or
X Visit a qualified specialist workshop. Display messages
217On-board computer and displays Z
Page 223 of 329
Display messages Possible causes/consequences and
M Solutions
?
Coolant Stop vehi‐
cle Switch engine
off The coolan
tis too hot.
Aw arning tone also sounds.
G WARNING
Do no tdrive when youre ngine is overheated. Thi scan cause some
fluids which may have leaked into the engine compartmen tto
catch fire.
Stea mfrom the overheated engine can also cause serious burns
which can occur just by opening the bonnet.
There is a risk of injury.
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Engage the electric parking brake.
X Leave the vehicle and keep a safe distance from the vehicle until
the engine has cooled down.
X Make sure that the air supply to the engine radiator is not
blocked, e.g. by frozen slush.
X Do not start the engine again until the display message goes out
and the coolant temperature is under 120 †. The engine may
otherwise be damaged.
X Pay attention to the coolant temperature display.
X If the temperature increases again, visit a qualified specialist
workshop immediately.
The reading may rise up to 120 †undernormal driving conditions
if the coolant has been filled correctly. # The battery is not being charged.
Possible causes:
R
faulty alternator
R torn poly-V-belt
R a malfunction in the electronics
X Stop the vehicle immediately, paying attention to road and traf-
fic conditions, and switch off the engine.
X Open the bonnet.
X Check whether the poly-V-belt is torn.
If the poly-V-belt is torn:
! Do not continue driving. The engine could otherwise overheat.
X Consult a qualified specialist workshop.
If the poly-V-belt is OK:
X Visit a qualified specialist workshop immediately. 220
Display messagesOn-board computer and displays