2015 MERCEDES-BENZ S-Class lights
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Display messages
Possible causes/consequences and
M
MSolutions The yellow
!warning lamp and the red F(USA only)/ !
(Canada only) indicator lamp light up.
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 Release the electric parking brake automatically (Y page 222).
If the electric parking brake still cannot be released: X Do not drive on.
X Consult a qualified specialist workshop. The red
F(USA only)/! (Canada only) indicator lamp
flashes and the yellow !warning lamp lights up.
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 Apply the electric parking brake manually.
If the red F(USA only)/ !(Canada only) indicator lamp
continues to flash:
X Do not drive on.
X Secure the vehicle against rolling away (Y page 466).
X Shift the transmission to P.
X Turn the front wheels towards the curb.
X Consult a qualified specialist workshop. Display
messages
321On-board computer and displays Z
Page 324 of 502
Display messages
Possible causes/consequences and
M
MSolutions The yellow
!warning lamp lights up. The red F(USA
only)/ !(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.
X Switch off the ignition and turn it back on.
X Apply the electric parking brake.
If it is not possible to engage the electric parking brake:
X Shift the transmission to P.
X Visit a qualified specialist workshop.
If it is not possible to release the electric parking brake:
X Release the electric parking brake automatically (Y page 222).
If the electric parking brake still cannot be released: X Consult a qualified specialist workshop. The yellow
!warning lamp lights up. If you manually apply or
release the electric parking brake, the red F(USA only)/ !
(Canada only) indicator lamp flashes.
The electric parking brake is malfunctioning. It is not possible to
apply the electric parking brake manually.
X Shift the transmission to P.
X Visit a qualified specialist workshop. 322
Display
messagesOn-board computer and displays
Page 325 of 502
Display messages
Possible causes/consequences and
M
MSolutions F(USA
only)!
(Canada
only)
Parking Parking Brake
BrakeInop‐
Inop‐
erative
erative The yellow
!warning lamp lights up. The red F(USA
only)/ !(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)/ !(Canada only) indicator lamp flashes.
It is not possible to apply the electric parking brake manually.
X Shift the transmission to P.
X Visit a qualified specialist workshop. F(USA
only)!
(Canada
only)
Turn On the Igni‐ Turn On the Igni‐
tion to Release tion to Release
the Parking Brake the Parking Brake The red
F(USA only)/! (Canada only) indicator lamp lights
up.
You attempted to release the electric parking brake while the igni-
tion was switched off.
X Switch on the ignition. Display
messages
323On-board computer and displays Z
Page 326 of 502
Display messages
Possible causes/consequences and
M
MSolutions $(USA
only)J
(Canada
only)
Check Brake Fluid Check Brake Fluid
Level Level There is not enough brake fluid in the brake fluid reservoir.
In addition, the
$(USA only)/ 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 220).
X Consult a qualified specialist workshop.
X Do not add brake fluid. This does not correct the malfunction. #
Check Brake Pad Check Brake Pad
Wear 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 Inoperative One or more main features of the mbrace system are malfunc-
tioning.
X Have the mbrace system checked immediately at a qualified
specialist workshop. PRE-SAFE Inopera‐ PRE-SAFE Inopera‐
tive See Opera‐ tive See Opera‐
tor's Manual tor's Manual
Important functions of PRE-SAFE
®
have failed. All other occupant
safety systems, e.g. air bags, remain available.
X Visit a qualified specialist workshop immediately. 324
Display
messagesOn-board computer and displays
Page 330 of 502
Display messages
Possible causes/consequences and
M
MSolutions The seat belt buckle extender on the right or left of the rear com-
partment is not in the predefined position. There is not enough belt slack in the system.
G WARNING
If the seat belt buckle extender is not in the predefined position,
the seat belt cannot provide the intended level of protection.
There is an increased risk of injury. X Loosen the seat belt.
X Repeat the seat belt fastening procedure. The seat belt buckle extender on the right or left of the rear com-
partment is not in the predefined position. The assistance meas-
ures specified have been carried out. There is still a malfunction.
G WARNING
If the seat belt buckle extender is not in the predefined position,
the seat belt cannot provide the intended level of protection.
There is an increased risk of injury. X Visit a qualified specialist workshop. 6
SRS Malfunction SRS Malfunction
Service Required Service Required The restraint system is faulty. The
6warning lamp also lights
up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig- gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop.
For further information about the restraint system, see
(Y page 49). 6
Front Front
Left
LeftMalfunc‐
Malfunc‐
tion Service
tion Service
Required Required orFront
Front
Right Malfunction
Right Malfunction
Service Required Service Required The restraint system has malfunctioned at the front on the left or
right. The 6warning lamp also lights up in the instrument clus-
ter.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig- gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop. 328
Display
messagesOn-board computer and displays
Page 331 of 502
Display messages
Possible causes/consequences and
M
MSolutions 6
Rear Left Malfunc‐ Rear Left Malfunc‐
tion Service tion Service
Required Required
orRear
Rear
Right Malfunction
Right Malfunction
Service Required Service Required The restraint system has malfunctioned at the rear on the left or
right. The 6warning lamp also lights up in the instrument clus-
ter.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig- gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop. 6
Rear Left Malfunc‐ Rear Left Malfunc‐
tion Service tion Service
Required Required
orRear
Rear
Right Malfunction
Right Malfunction
Service Required Service Required G
WARNING
If the seat belt buckle extender is not in the predefined position,
the seat belt cannot provide the intended level of protection.
There is an increased risk of injury. X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions.
X Perform the specified assistance measures when display mes-
sage Check Left Rear Belt See Operator's Manual Check Left Rear Belt See Operator's Manual or
Check
Check Right
RightRear
RearBelt
Belt See
SeeOperator's
Operator's Manual
Manualis shown
(Y page 327).
If the display message does not disappear:
X Visit a qualified specialist workshop immediately. 6
Rear Center Mal‐ Rear Center Mal‐
function Service function Service
Required Required The restraint system has malfunctioned at the rear center. The
6 warning lamp also lights up in the instrument cluster.
G WARNING
The air bags or Emergency Tensioning Devices may either be trig- gered unintentionally or, in the event of an accident, may not be
triggered.
There is an increased risk of injury.
X Visit a qualified specialist workshop. Display
messages
329On-board computer and displays Z
Page 332 of 502
Display messages
Possible causes/consequences and
M
MSolutions 6
Left Side Curtain Left Side Curtain
Airbag Airbag
Malfunction
Malfunction
Service Required
Service Required
or Right Side Cur‐ Right Side Cur‐
tain Airbag Mal‐
tain Airbag Mal‐
function Service function Service
Required Required There is a malfunction in the left-hand or right-hand window cur-
tain air bag. The
6warning lamp also lights up in the instrument
cluster.
G WARNING
The left or right window curtain air bag may either be triggered
unintentionally or, in the event of an accident, may not be trig-
gered.
There is an increased risk of injury. X Visit a qualified specialist workshop. 330
Display
messagesOn-board computer and displays
Page 335 of 502
Display messages
Possible causes/consequences and
M
MSolutions Disabled
Disabled
See
SeeOperator's
Operator's Manual
Manualmust not appear in the
multifunction display.
X Wait for a period of at least 60 seconds until the necessary sys-
tem checks have been completed.
X Make sure that the display messages do not appear in the mul-
tifunction display.
If these conditions are fulfilled, the front-passenger seat can be
occupied again. Whether the PASSENGER AIR BAG OFF or ON
indicator lamp remains lit or goes out depends on how OCS clas- sifies the occupant.
If the conditions are not fulfilled, the system is not operating cor-rectly.
X Visit a qualified specialist workshop immediately.
For further information about the Occupant Classification System, see (Y page 60). Lights
i Vehicles with LED bulbs in the lamp units:
The display message for the corresponding light will only appear if all the LEDs have failed. Display messages
Possible causes/consequences and
M MSolutions b
Check Left Corner‐ Check Left Corner‐
ing Light ing Light
orCheck
Check
Right Cornering
Right Cornering
Light Light The left or right-hand cornering light is defective.
X Visit a qualified specialist workshop. b
Check Left Low Check Left Low
Beam Beam
orCheck
Check
Right Low Beam
Right Low Beam The left or right-hand low-beam headlamp is defective.
X Visit a qualified specialist workshop. b
Check Rear Left Check Rear Left
Turn Signal Turn Signal
or
Check Rear Right
Check Rear Right
Turn Signal Turn Signal The rear left-hand or rear right-hand turn signal is defective.
X Visit a qualified specialist workshop. Display
messages
333On-board computer and displays Z