Display messagesPossible causes/consequences and 0050 Solutions003FThe battery is no longer charging.
Possible causes:
R alternator malfunctioning
R broken poly-V-belt
R a malfunction in the electronic system
Do not forget that the brake system requires electrical energy
and may be operating with restricted capability. Considerably
greater brake pedal force is required and the stopping
distance is increased.XStop immediately in a safe location or as soon as it is safe
to do so and check the poly-V-belt.XIf it is broken: Do not continue to drive. Otherwise the
engine will overheat due to an inoperative water pump
which may result in damage to the engine. Contact an
authorized Mercedes-Benz Center.XIf it is intact: Drive to the nearest authorized Mercedes-
Benz Center immediately. Adjust driving to be consistent
with reduced braking responsiveness.003FBattery/
Alternator
Stop CarThe battery is defective.
The electro-hydraulic brake system requires electrical energy
and therefore has only limited operation. Considerably
greater brake pedal force is required and the stopping
distance is increased.XStop the vehicle in a safe location or as soon as it is safe
to do so.XAdjust driving to be consistent with reduced braking
responsiveness.XContact an authorized Mercedes-Benz Center.00B4Engine
Oil Level
Check
LevelVehicles with oil dipstick only:
The engine oil has dropped to a critical level.XCheck the engine oil level ( Y page 181) and add engine oil
as required ( Y page 183).XIf you must add engine oil frequently, have the engine
checked for possible leaks.Vehicle status messages in the multifunction display247Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 247Z
Display messagesPossible causes/consequences and 0050 Solutions00B4Engine
Oil Level
Stop car,
switch
engine
off.The engine oil level is too low. There is a danger of engine
damage.XStop the vehicle in a safe location or as soon as it is safe
to do so.XTurn off the engine.XEngage the parking brake.XAdd engine oil ( Y page 183) and check the engine oil level
( Y page 181).00AAThe fuel level is low.XRefuel at the next gas station.00B8Reserve
FuelThe fuel level has dropped below the reserve mark.XRefuel at the next gas station.00B8Fuel Cap
OpenA loss of pressure has been detected in the fuel system. The
fuel cap may not be closed properly or the fuel system may
be leaking.XCheck the fuel cap ( Y page 178).XIf it is not closed properly: Close the fuel cap.XIf it is closed properly: Have the fuel system checked at
an authorized Mercedes-Benz Center.
Lamps
Display messagesPossible causes/consequences and 0050 Solutions0055Active
Headlamps
Inoperativ
eThe active Bi-Xenon headlamp system is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.0055Reverse
Lamp Left
or
Reverse
Lamp RightThe left or right backup lamp is malfunctioning.XReplace the bulb as soon as possible ( Y page 271).Vehicle status messages in the multifunction display249Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 249Z
Display messagesPossible causes/consequences and 0050 Solutions0055Brake
Lamp Left
Auxiliary
Bulb On
or
Brake
Lamp
Right
Auxiliary
Bulb OnThe left or right brake lamp is malfunctioning. A substitute
bulb is being used.XContact an authorized Mercedes-Benz Center as soon as
possible.00553rd 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.0055Front
Foglamp
Left
or
Front
Foglamp
RightThe left or right front fog lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.0055Marker
Lamp
Front Left
or
Marker
Lamp
Front
RightThe front left side or right side marker lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.0055Marker
Lamp Rear
Left
or
Marker
Lamp Rear
RightThe rear left side or right side marker lamp is malfunctioning.XContact an authorized Mercedes-Benz Center as soon as
possible.250Vehicle status messages in the multifunction displayPractical hints
230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 250
Display messagesPossible causes/consequences and 0050 Solutions0077Tire
Pressure
Check
TiresThe 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 276).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.254What to do if …Practical hints
230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 254
BrakeProblemPossible causes/consequences and 0050 Solutions0031The yellow ABS
indicator lamp
comes on while
the engine is
running.The ABS has detected a malfunction and switched off. The BAS,
the ESP ®
, and the hill-start assist system (SL 63 AMG only) are
also switched off.
The electro-hydraulic brake system is still functioning normally but
without the systems specified above available.
If the ABS control unit is malfunctioning, other systems such as
the navigation system or the automatic transmission may also be
malfunctioning.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 226).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 ABS has switched off due to insufficient power supply.
The battery might not be charged sufficiently.
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 226).XIf the ABS indicator lamp does not go out: Have the alternator
and the battery checked.0027 (USA only)
004D (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.What to do if …255Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 255Z
ProblemPossible causes/consequences and 0050 Solutions0027 (USA only)
004D (Canada only)
The red brake warning
lamp comes on while
the engine is running
and an acoustic
warning sounds.There is a malfunction in the electro-hydraulic brake system.
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 226).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.
Safety systems
ProblemPossible causes/consequences and 0050 Solutions0082The red seat belt
telltale comes
on for a
maximum of
6 seconds after
starting the
engine.The seat belt telltale reminds you and your passenger to fasten
your seat belts before driving off.XFasten your seat belts.
Regardless of whether the seat belts are fastened or not, the seat
belt telltale always comes on and remains lit for 6 seconds after
starting the engine.
0082The red seat belt
telltale comes
on. In addition
you hear a
warning chime
for a maximum
of 6 seconds
after starting the
engine.You have forgotten to fasten your seat belt.XFasten your seat belt.
The warning chime stops sounding.256What to do if …Practical hints
230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 256
Driving systemsProblemPossible causes/consequences and 0050 Solutions00D5The white
Distronic
indicator lamp
comes on while
driving.The Distronic distance sensor has recognized a preceding vehicle.00D5The 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 the
distance warning system 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.
Vehicle
ProblemPossible causes/consequences and 0050 Solutions00B8The yellow fuel
tank reserve
warning lamp
comes on when
the engine is
running.The fuel level has gone below the reserve mark.XRefuel at the next gas station.00B8The yellow fuel
tank reserve
warning lamp
comes on when
the engine is
running.The fuel cap is not closed properly.XClose the fuel cap.262What to do if …Practical hints
230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 262
change when driving with a spare wheel
mounted. Adapt your driving style
accordingly.
The spare wheel is for temporary use only.
When driving with a spare wheel mounted,
ensure proper tire inflation pressure and do
not exceed a vehicle speed of 50 mph
(80 km/h).
Contact the nearest authorized Mercedes-
Benz Center as soon as possible to have the
spare wheel replaced with a regular road
wheel.
Never operate the vehicle with more than one
spare wheel mounted.
Do not switch off the ESP® when a spare
wheel is mounted.
Preparing the vehicle
XWhenever possible, park the vehicle in a
safe distance from moving traffic on a hard,
flat surface.
XTurn on the hazard warning flasher.XTurn the steering wheel so that the front
wheels are in a straight-ahead position.
XEngage the parking brake.XShift the automatic transmission into park
position P.
XTurn off the engine.XRemove the SmartKey from the starter
switch.
or
XVehicles with KEYLESS-GO: Open the
driver’s door (this puts the starter switch in
position 0, same as with the SmartKey
removed from the starter switch). The
driver’s door can then be closed again.
Open doors only when conditions are safe
to do so.
XHave any passenger exit the vehicle at a
safe distance from the roadway. Open
doors only when conditions are safe to do
so.
Mounting the spare wheel
Introduction
XPrepare the vehicle as described
(Y page 277).
XTake the following out of the vehicle:
Rspare wheel
Rjack
Rvehicle tool kit
Rwheel wrench
Relectric air pump
For information on where to find the
respective items, see “Where will I find ...?”
(Y page 224) and (Y page 225).
iVehicles without spare wheel are not
factory-equipped with the tools required for
a wheel change such as a jack or a wheel
wrench. Some tools required for a wheel
change are specific to your vehicle.
Contact an authorized Mercedes-Benz
Center to obtain the tools approved for
your vehicle. This section describes the
wheel change using the tools approved and
recommended for your vehicle.
Removing tensioning straps from spare
wheel
This description applies to vehicles with 19"
spare wheel with collapsible tire only.
A 19" spare wheel with collapsible tire has
two tensioning straps on it that must be
removed before mounting the spare wheel.
Flat tire277Practical hints230_AKB; 6; 22, en-USd2ureepe,Version: 2.11.8.12009-07-28T18:49:58+02:00 - Seite 277Z