Display messagesPossible causes/consequences and 0050 Solutions0027
(USA only)
004D
(Canada
only)ABS and
ESC
Currently
Unavailabl
e See
Oper.
ManualIn addition, the yellow ESC warning lamp 00F2, the yellow
ESC OFF warning lamp 00C7, and the yellow ABS indicator
lamp 0031 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.
0027
(USA only)
004D
(Canada
only)EBR, ABS,
and ESC
Inoperativ
e See
Oper.
ManualIn addition, the yellow ESC warning lamp 00F2, the yellow
ESC OFF warning lamp 00C7, and the yellow ABS indicator
lamp 0031 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.
468Vehicle status messages in the multifunction displayPractical hints
221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 468
Display messagesPossible causes/consequences and 0050 Solutions0049
(USA only)
0024
(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.0049
(USA only)
0024
(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.0049
(USA only)
0024
(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 0050 Solutions0049
(USA only)
0024
(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.0049
(USA only)
0024
(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
221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 470
Safety systemsDisplay messagesPossible causes/consequences and 0050 Solutions00F2Inoperativ
e See
Oper.
ManualIn addition, the yellow ESC warning lamp 00F2 and the yellow
ESC OFF warning lamp 00C7 come on.
The brake system is still functioning normally but due to a
malfunction, 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.
00F2Currently
Unavailabl
e See
Oper.
ManualIn addition, the yellow ESC warning lamp 00F2 and the yellow
ESC OFF warning lamp 00C7 come on.
The brake system is still functioning normally but without 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 available.
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 display473Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 473Z
Display messagesPossible causes/consequences and 0050 Solutions00F2Currently
Unavailabl
e See
Oper.
ManualIf the yellow ESC warning lamp 00F2 flashes while driving and
this message appears, the Electronic Traction System (ETS/
4-ETS) has switched off to prevent overheating of the drive
wheel brakes.
The BAS PLUS and the PRE-SAFE ®
Brake are also not
available.
As soon as the brakes have cooled off, the Electronic Traction
System (ETS/4-ETS) switches on again.
The message in the multifunction display disappears and the
ESC warning lamp 00F2 goes out.005FTele Aid
Inoperativ
eOne or more main functions of the Tele Aid system are
malfunctioning.XHave the Tele Aid system checked at an authorized
Mercedes-Benz Center.0081SRS
Malfunctio
n Service
RequiredThere is a malfunction in the Supplemental Restraint System
(SRS). The air bags or Emergency Tensioning Devices (ETDs)
could deploy unexpectedly or fail to activate in an accident.XDrive with added caution to the nearest authorized
Mercedes-Benz Center.0081Front
Left SRS
Malfunctio
n Service
RequiredComponents of the driver’s supplemental restraint system
may not work properly.XDrive with added caution to the nearest authorized
Mercedes-Benz Center.0081Front
Right SRS
Malfunctio
n Service
RequiredComponents of the front passenger’s supplemental restraint
system may not work properly.XDrive with added caution to the nearest authorized
Mercedes-Benz Center.0081Rear Left
SRS
Malfunctio
n Service
RequiredComponents of the left rear passenger’s supplemental
restraint system may not work properly.XDrive with added caution to the nearest authorized
Mercedes-Benz Center.474Vehicle status messages in the multifunction displayPractical hints
221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 474
TiresDisplay messagesPossible causes/consequences and 0050 Solutions0077Tire
Press.
Warning
Caution
Tire
Malfunctio
nAt least one tire is deflating.XCarefully bring the vehicle to a halt, avoiding abrupt
steering and braking maneuvers.XIf necessary, change the wheel ( Y page 508).0077Check
Tire
PressureThe tire inflation pressure in at least one tire is significantly
below the reference value.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.
What to do if …
Lamps in instrument cluster
Notes
If any of the following lamps in the instrument
cluster fails to come on during the bulb self-
check when switching on the ignition, have
the respective bulb checked and replaced if
necessary.
When you switch on the ignition, all lamps in
the instrument cluster come on. The high-
beam headlamp indicator lamp and turn
signal indicator lamps will only come on if
activated. If a lamp in the instrument cluster
fails to come on when the ignition is switched
on, have it checked and replaced if necessary.GWarning!
HYBRID vehicles: It is imperative that you read
the HYBRID Supplemental Operating
Instructions included in your vehicle literature
portfolio. You may otherwise not receive all
necessary safety information and warning for
the operation of your vehicle.
What to do if …489Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 489Z
BrakeProblemPossible causes/consequences and 0050 Solutions0031The yellow ABS
indicator lamp
comes on while
the engine is
running.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.XRead and observe messages that may appear in the
multifunction display ( Y page 452).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.
0031The yellow ABS
indicator lamp
comes on while
the engine is
running.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.
When the voltage is above the required value again, the ABS is
operational again. The ABS indicator lamp should go out.XContinue driving with added caution. Wheels may lock during
hard braking, reducing steering capability.XAdjust driving to be consistent with reduced braking
responsiveness.XRead and observe messages that may appear in the
multifunction display ( Y page 452).XIf the ABS indicator lamp does not go out: Have the alternator
and the battery checked.490What to do if …Practical hints
221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 490
ProblemPossible causes/consequences and 0050 Solutions0031The yellow ABS
indicator lamp
comes on while
the engine is
running.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 has not been completed yet.
The ATTENTION ASSIST is disabled.
The indicator lamp will go out after driving a short distance at a
vehicle speed of above 12 mph (20 km/h).
If the ABS indicator lamp does not go out:XContinue driving with added caution. Wheels may lock during
hard braking, reducing steering capability.XAdjust driving to be consistent with reduced braking
responsiveness.XRead and observe messages that may appear in the
multifunction display ( Y page 452).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.
00F2
00C7
0031
The yellow ESC warning
lamp, the yellow ESC
OFF warning lamp, and
the yellow ABS
indicator lamp come on
while the engine is
running and an
acoustic warning
sounds.The Electronic Brake Proportioning (EBP) switched off 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 also switched
off.
The brake system is still functioning normally but without the
systems specified above available.
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.XRead and observe messages that may appear in the
multifunction display ( Y page 452).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.
What to do if …491Practical hints221_AKB; 6; 20, en-USd2ugruen,Version: 2.11.8.12009-09-24T13:28:17+02:00 - Seite 491Z