GWarning!
If the 42 indicator lamp remains out even after performing the above corrective
steps, do not have any children 12 years old and under and other small individuals use the front
passenger seat until the system has been repaired.
Display messagesPossible causes/consequences and M SolutionsFront
Passenger
Airbag
Disabled
See Oper.
ManualThe front passenger front air bag is deactivated while driving
even though an adult or someone larger than a small
individual is occupying the front passenger seat. Forces
acting on the seat may make the system sense a decrease in
weight.XStop the vehicle in a safe location as soon as possible.XEngage the electronic parking brake.XSwitch off the ignition.XHave the front passenger vacate the seat and exit the
vehicle.XKeep the seat unoccupied, close the front passenger door
and switch on the ignition.
Monitor the 42 indicator lamp right of the
instrument cluster ( Y page 48) and the multifunction display
in the instrument ( Y page 32) cluster for the following:
With the seat unoccupied and the ignition switched on,
R the 42 indicator lamp right of the instrument
cluster should illuminate and remain illuminated, indicating
that the OCS ( Y page 46) has deactivated the front
passenger front air bag.
R the message Front Passenger Airbag Enabled See
Oper. Manual or the message Front Passenger
Airbag Disabled See Oper. Manual should not appear
in the multifunction display at any time the seat is
unoccupied. Wait at least 60 seconds for the system to
complete the necessary check cycles and to make sure
neither message appears in the multifunction display.
If above conditions are met, you can occupy the front
passenger seat again. Depending on the front passenger
classification sensed by the OCS, the 42
indicator lamp will remain illuminated or go out.
If above conditions are not met, the system is not working
properly. Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
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GWarning!
If the 42 indicator lamp remains illuminated with an adult occupant on the front
passenger seat even after performing the above corrective steps, do not have any passenger use
the front passenger seat until the system has been repaired.Driving systems
Display messagesPossible causes/consequences and M SolutionsABCMalfunctio
n Stop
VehicleYou have started driving although the vehicle level is still too
low.
The vehicle is being raised. The ABC message goes out after
a few seconds.XStop the vehicle in a safe location or as soon as it is safe
to do so.XWait until the message disappears from the multifunction
display.
You may then drive off.ABCMalfunctio
n Stop
VehicleThe vehicle is losing oil.
The ABC message appears continuously.XStop the vehicle in a safe location or as soon as it is safe
to do so.XEngage the electronic parking brake.XCall Roadside Assistance.
or
XContact an authorized Mercedes-Benz Center.ABCMalfunctio
n Stop
VehicleThe ABC is malfunctioning.
The ABC message appears continuously.XDo not turn steering wheel too far to avoid damaging the
front fenders.XListen for scraping noises.XDo not drive faster than 50 mph (80 km/h).XContact an authorized Mercedes-Benz Center as soon as
possible.ABCMalfunctio
nThe capability of the ABC system is restricted. This can impair
handling.XDo not drive faster than 50 mph (80 km/h).XContact an authorized Mercedes-Benz Center as soon as
possible.Vehicle status messages in the multifunction display457Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 457Z
Display messagesPossible causes/consequences and M SolutionsCheck
TiresThe tire inflation pressure in at least one tire is significantly
below the reference value.
The respective tire is indicated in the multifunction display.XCarefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.XCheck and adjust tire inflation pressure as required.XIf necessary, change the wheel ( Y page 508).GWarning!
Do not drive with a flat tire. A flat tire affects the ability to steer or brake the vehicle. You may
lose control of the vehicle. Continued driving with a flat tire will cause excessive heat build-up
and possibly a fire.
GWarning!
Follow recommended tire inflation pressures.
Do not underinflate tires. Underinflated tires wear excessively and/or unevenly, adversely affect
handling and fuel economy, and are more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires can adversely affect handling and ride comfort, wear
unevenly, increase stopping distance, and result in sudden deflation (blowout) because they are
more likely to become punctured or damaged by road debris, potholes etc.
Symbol messages
Brake
Display messagesPossible causes/consequences and M Solutions#Check
Brake Pad
WearThe brake pads have reached their wear limit.XHave the brake pads replaced as soon as possible at an
authorized Mercedes-Benz Center.
! Brake pad thickness must be visually inspected by a qualified technician at the intervals
specified in the Maintenance Booklet.
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Display messagesPossible causes/consequences and M Solutions$
(USA only)
J
(Canada
only)ABS and
ESC
Inoperativ
e See
Oper.
ManualIn addition, the yellow ESC warning lamp ÷, the yellow
ESC OFF warning lamp å, and the yellow ABS indicator
lamp ! come on.
The brake system is still functioning normally but due to a
malfunction, the ABS, the BAS, the BAS PLUS, the ESC, the
hill-start assist system, the HOLD function, the Adaptive
Brake Lights, the PRE-SAFE ®
system, and the PRE-SAFE ®
Brake are unavailable.
The ATTENTION ASSIST is disabled.XContinue driving with added caution. Wheels may lock
during hard braking, reducing steering capability.XAdjust driving to be consistent with reduced braking
responsiveness.XHave the system checked at an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions increases the risk of an
accident.
$
(USA only)
J
(Canada
only)ABS and
ESC
Currently
Unavailabl
e See
Oper.
ManualIn addition, the yellow ESC warning lamp ÷, the yellow
ESC OFF warning lamp å, and the yellow ABS indicator
lamp ! come on.
The brake system is still functioning normally but temporarily
the ABS, the BAS, the BAS PLUS, the ESC, the hill-start assist
system, the HOLD function, the Adaptive Brake Lights, the
PRE-SAFE ®
system, and the PRE-SAFE ®
Brake are
unavailable.
The self-diagnosis may not be completed yet.
The ATTENTION ASSIST is disabled.XDrive a short distance with added caution at a vehicle speed
of above 12 mph (20 km/h).
When the message disappears, the ESC is available again.
If the message does not disappear:
XContinue driving with added caution. Wheels may lock
during hard braking, reducing steering capability.XAdjust driving to be consistent with reduced braking
responsiveness.XHave the system checked at an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions increases the risk of an
accident.
Vehicle status messages in the multifunction display467Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 467Z
Display messagesPossible causes/consequences and M Solutions$
(USA only)
J
(Canada
only)ABS and
ESC
Currently
Unavailabl
e See
Oper.
ManualIn addition, the yellow ESC warning lamp ÷, the yellow
ESC OFF warning lamp å, and the yellow ABS indicator
lamp ! come on.
The brake system still functions normally but due to
insufficient power supply, the ABS, the BAS, the BAS PLUS,
the ESC, the hill-start assist system, the HOLD function, the
Adaptive Brake Lights, the PRE-SAFE ®
system, and the
PRE-SAFE ®
Brake are unavailable.
The ATTENTION ASSIST is disabled.XContinue driving with added caution. Wheels may lock
during hard braking, reducing steering capability.XAdjust driving to be consistent with reduced braking
responsiveness.
When the voltage is above the required value again, the ABS,
the BAS, the BAS PLUS, the ESC, the hill-start assist system,
the HOLD function, the Adaptive Brake Lights, the
PRE-SAFE ®
system, and the PRE-SAFE ®
Brake are operational
again and the message should disappear.
If the message does not disappear:
XHave the alternator and the battery checked.
Failure to follow these instructions increases the risk of an
accident.
$
(USA only)
J
(Canada
only)EBR, ABS,
and ESC
Inoperativ
e See
Oper.
ManualIn addition, the yellow ESC warning lamp ÷, the yellow
ESC OFF warning lamp å, and the yellow ABS indicator
lamp ! come on and an acoustic warning sounds.
The brake system is still functioning normally but due to a
malfunction, the ABS, the BAS, the BAS PLUS, the EBP, the
ESC, the HOLD function, the Adaptive Brake Lights, the PRE-
SAFE ®
system, and the PRE-SAFE ®
Brake are unavailable.
The ATTENTION ASSIST is disabled.XContinue driving with added caution. Wheels may lock
during hard braking, reducing steering capability.XAdjust driving to be consistent with reduced braking
responsiveness.XHave the system checked at an authorized Mercedes-Benz
Center as soon as possible.
Failure to follow these instructions increases the risk of an
accident.
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Display messagesPossible causes/consequences and M SolutionsF
(USA only)
!
(Canada
only)Please
Release
Parking
BrakeIn addition, the red indicator lamp for the electronic parking
brake flashes and an acoustic warning sounds.
You are driving with the electronic parking brake engaged, or
you are carrying out an emergency brake maneuver with the
electronic parking brake ( Y page 315).XRelease electronic parking brake.
or
XDrive off carefully.
or
XRelease the handle for electronic parking brake.F
(USA only)
!
(Canada
only)Please
Release
Parking
BrakeIn addition, the red indicator lamp for the electronic parking
brake flashes, the yellow warning lamp for the electronic
parking brake comes on and an acoustic warning sounds.
The electronic parking brake is malfunctioning. The braking
effect is reduced.
While driving:XRelease the handle for electronic parking brake.
While at a standstill:
XSwitch off the ignition.XPress handle for electronic parking brake until the warning
message disappears from the multifunction display.
If the warning message does not disappear:
XShift the automatic transmission to park position P
( Y page 317).XProtect vehicle from rolling away while parked by using the
collapsible wheel chock from the vehicle tool kit
( Y page 450).XContact an authorized Mercedes-Benz Center as soon as
possible.F
(USA only)
!
(Canada
only)Turn On
the
Ignition
to
Release
the
Parking
BrakeIn addition, the red indicator lamp for the electronic parking
brake comes on.
You have tried to release the electronic parking brake, but the
ignition was not switched on.XSwitch on the ignition.Vehicle status messages in the multifunction display469Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 469Z
Display messagesPossible causes/consequences and M SolutionsF
(USA only)
!
(Canada
only)Parking
Brake See
Oper.
ManualIn addition, the yellow warning lamp for the electronic parking
brake comes on. The red indicator lamp for the electronic
parking brake may also come on.
The electronic parking brake is malfunctioning.
To release:XPull handle of electronic parking brake.
or
XDrive off carefully.XContact an authorized Mercedes-Benz Center as soon as
possible.
To engage:
XSwitch off the ignition.XPress handle for electronic parking brake for at least
10 seconds until the warning message in the multifunction
display disappears.
If the warning message does not disappear:
XShift the automatic transmission to park position P
( Y page 317).XProtect vehicle from rolling away while parked by using the
collapsible wheel chock from the vehicle tool kit
( Y page 450).XContact an authorized Mercedes-Benz Center as soon as
possible.F
(USA only)
!
(Canada
only)Parking
Brake See
Oper.
ManualIn addition, the red indicator lamp for the electronic parking
brake flashes.
The power supply for the electronic parking brake was
interrupted.XPull handle of electronic parking brake.
or
XDrive off carefully.
or
XPress handle for electronic parking brake until the warning
message in the multifunction display disappears.470Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M SolutionsF
(USA only)
!
(Canada
only)Parking
Brake See
Oper.
ManualIn addition, the red indicator lamp for the electronic parking
brake flashes and the yellow warning lamp for the electronic
parking brake comes on.
The electronic parking brake is malfunctioning.XSwitch ignition off and back on again, and engage or release
electronic parking brake.
or
XDrive off carefully.XContact an authorized Mercedes-Benz Center as soon as
possible.F
(USA only)
!
(Canada
only)Parking
Brake See
Oper.
ManualWhen you engage or release the electronic parking brake, the
red indicator lamp for the electronic parking brake flashes for
approximately 10 seconds. Afterward, it goes out or comes
on continuously. The yellow warning lamp for the electronic
parking brake comes on.
The electronic parking brake is malfunctioning or overheated
for example due to overvoltage or undervoltage.XDrive off carefully.XContact an authorized Mercedes-Benz Center as soon as
possible.
In the event of overvoltage or undervoltage:
XRemove the cause of the overvoltage or undervoltage, e.g.
charge the battery or restart the engine.XSwitch ignition off and back on again, and engage or release
electronic parking brake.
If the electronic parking brake still cannot be released:
XContact an authorized Mercedes-Benz Center as soon as
possible.
If overheated:
XLet vehicle cool down, and do not engage electronic parking
brake during this time.
or
XSwitch ignition off and back on again, and engage or release
electronic parking brake.Vehicle status messages in the multifunction display471Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 471Z