Display messagesPossible causes/consequences and M SolutionsDPower
Steering
Malfunctio
n
See
Operator's
ManualPower assistance for the steering system is not available. A
considerably higher degree of effort is necessary to steer the
vehicle.XCheck whether you are capable to apply the higher degree
of effort necessary to safely steer the vehicle.
If you are able to steer the vehicle safely:
XContinue driving with added caution.XHave the system checked at an authorized Mercedes-Benz
Center.
If, in any way, you feel that you are not able to steer the vehicle
safely:
XStop the vehicle in a safe location as soon as it is safe to
do so.XApply the parking brake.XDo not continue to drive.XContact an authorized Mercedes-Benz Center.
Engine
Display messagesPossible causes/consequences and M Solutions+Check
Coolant
Level See
Operator's
ManualThe coolant level is too low.XAdd coolant ( Y page 226).XIf you have to add coolant frequently, have the cooling
system checked at an authorized Mercedes-Benz Center.GWarning!
Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn
if it comes into contact with hot engine parts. You could be seriously burned.
! Do not ignore the low engine coolant level warning. Extended driving with the message
and symbol displayed may cause serious engine damage not covered by the Mercedes-Benz
Limited Warranty.
Do not drive without sufficient amount of coolant in the cooling system. The engine will
overheat causing major engine damage.
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Display messagesPossible causes/consequences and M Solutions?Coolant
Low Stop
Vehicle!
Turn
Engine OffThe coolant is too hot.XStop the vehicle immediately as soon as it is safe to do so.XTurn off the engine immediately.XEngage the parking brake.XOnly start the engine again after the message disappears.
You could otherwise damage the engine.XObserve the coolant temperature gauge in the instrument
cluster.XIf the temperature rises again: Contact an authorized
Mercedes-Benz Center immediately.
During severe operation conditions and stop-and-go city
traffic, the coolant temperature may rise close to 248‡
(120†).
GWarning!
Driving when your engine is overheated can cause some fluids which may have leaked into the
engine compartment to catch fire. You could be seriously burned.
Steam from an overheated engine can cause serious burns which can occur just by opening the
engine hood. Stay away from the engine if you see or hear steam coming from it.
Stop the vehicle in a safe location away from other traffic. Turn off the engine, get out of the
vehicle and do not stand near the vehicle until the engine has cooled down.
! The engine should not be operated with the coolant temperature above 248‡ (120†).
Doing so may cause serious damage which is not covered by the Mercedes-Benz Limited
Warranty.
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Display messagesPossible causes/consequences and M SolutionsbCheck
Left
Daytime
Running
Light
or
Check
Right
Daytime
Running
LightThe left or right daytime running lamps are malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bCheck
Left
Reverse
Lamp
or
Check
Right
Reverse
LampThe left or right backup lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.bCheck
Center
Brake LampThe high-mounted brake lamp is malfunctioning. This
message will only appear if all LEDs have stopped working.XContact an authorized Mercedes-Benz Center as soon as
possible.bCheck
Left Fog
Lamp
or
Check
Right Fog
LampThe left or right front fog lamp is malfunctioning. This message
will only appear if all LEDs have stopped working.XContact an authorized Mercedes-Benz Center as soon as
possible.bCheck
Front
Left
Sidemarker
Lamp
or
Check
Front
Right
Sidemarker
LampThe front left side or right side marker lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.300Vehicle status messages in the multifunction displayPractical hints
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Display messagesPossible causes/consequences and M SolutionsbAuto Lamp
Function
Inoperativ
eThe light sensor is malfunctioning. The headlamps come on
automatically.XContact an authorized Mercedes-Benz Center as soon as
possible.
To switch off the headlamps (U.S. vehicles only):
XSwitch off the daytime running lamp mode in the control
system ( Y page 141).XSwitch off the headlamps using the exterior lamp switch
( Y page 97).bCheck
Left Low
Beam
or
Check
Right Low
BeamThe left or right low-beam lamp is malfunctioning.XHalogen headlamp: Replace the bulb as soon as possible
( Y page 318).XBi-Xenon headlamp: Contact an authorized Mercedes-
Benz Center as soon as possible.bCheck
Rear Left
Fog LampThe rear fog lamp is malfunctioning. This message will only
appear if all LEDs have stopped working.XContact an authorized Mercedes-Benz Center as soon as
possible.bSwitch
Off LightsYou have removed the SmartKey from the starter switch,
opened the driver’s door and left the headlamps on or
removed the SmartKey with KEYLESS-GO from the vehicle
and left the headlamps on.XTurn the exterior lamp switch to $ or c
( Y page 97).
or
XWith the fog lamps switched on: Push in the exterior
lamp switch to its stop.bCheck
Left Tail
and Brake
Lamps
or
Check
Right
Tail and
Brake
LampsThe left or right tail lamp/brake lamp is malfunctioning. This
message will only appear if all LEDs have stopped working.XContact an authorized Mercedes-Benz Center as soon as
possible.302Vehicle status messages in the multifunction displayPractical hints
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TiresDisplay messagesPossible causes/consequences and M SolutionshTire
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 323).hCheck
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 323).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 low-
beam headlamp indicator lamp, high-beam
headlamp indicator lamp, turn signal
indicator lamps, and the indicator lamps for
the fog 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.304What to do if …Practical hints
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BrakeProblemPossible causes/consequences and M Solutions!The 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 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 272).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.
ä
å
!
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 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 272).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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ProblemPossible causes/consequences and M Solutions$ (USA only)
J (Canada only)
The red brake warning
lamp comes on while
driving.The brake system is malfunctioning. Braking characteristics may
be impaired.
Risk of accident!XDo not drive any further. Stop the vehicle in a safe location as
soon as it is safe to do so.XEngage the parking brake.XRead and observe messages that may appear in the
multifunction display ( Y page 272).XContact an authorized Mercedes-Benz Center.$ (USA only)
J (Canada only)
The red brake warning
lamp comes on while
driving and an acoustic
warning sounds.You are driving with the parking brake engaged.XRelease the parking brake.$ (USA only)
J (Canada only)
The red brake warning
lamp comes on while
the engine is running
and an acoustic
warning sounds.There is insufficient brake fluid in the reservoir.
Risk of accident!XDo not drive any further. Stop the vehicle in a safe location as
soon as it is safe to do so.XEngage the parking brake.XRead and observe messages that may appear in the
multifunction display ( Y page 272).XContact an authorized Mercedes-Benz Center.
Do not add brake fluid! This will not solve the problem.
GWarning!
Driving with the brake warning lamp
illuminated can result in an accident. Have
your brake system checked immediately if the
brake warning lamp stays on. Do not add
brake fluid before checking the brake system.
Overfilling the brake fluid reservoir can result
in spilling brake fluid on hot engine parts and
the brake fluid catching fire. You can be
seriously burned.
! If you find that the brake fluid in the brake
fluid reservoir has fallen to the minimum
mark or below, have the brake system
checked for brake pad thickness and leaks.306What to do if …Practical hints
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ProblemPossible causes/consequences and M Solutionsä
åThe yellow ESC
warning lamp
and the yellow
ESC OFF
warning lamp
come on while
the engine is
running.The ESC is not operational due to a malfunction.
The ABS, the BAS, the BAS PLUS, the hill-start assist system, the
HOLD function, 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.XRead and observe additional messages that may appear in the
multifunction display.XContinue driving with added caution. Wheels may lock during
hard braking, reducing steering capability.XAdapt your speed and driving to the prevailing road and weather
conditions.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.
äThe yellow ESC
warning lamp
flashes while
driving.The ESC or the ETS has come into operation because of detected
traction loss in at least one tire.XWhen driving off, apply as little throttle as possible.XWhile driving, ease up on the accelerator pedal.XAdapt your speed and driving to the prevailing road and weather
conditions.XDo not deactivate the ESC.
Exceptions: All models except E 63 AMG (Y page 66), E 63 AMG
( Y page 68).
Failure to follow these instructions increases the risk of an
accident.
Driving systems
ProblemPossible causes/consequences and M Solutions·The red distance
warning lamp
comes on while
driving and an
acoustic
warning sounds.You are gaining too rapidly on the vehicle ahead of you or
DISTRONIC PLUS or PRE-SAFE ®
Brake has recognized a stationary
obstacle on your probable line of travel.XApply the brakes immediately.XCarefully observe the traffic situation. You may need to brake
or maneuver to avoid hitting an obstacle.What to do if …309Practical hints212_AKB; 2; 41, en-USd2ureepe,Version: 2.11.8.12009-07-17T09:14:21+02:00 - Seite 309Z