Display messagesPossible causes/consequences and M SolutionshTire
Pres.
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 239).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, 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.What to do if …219Practical hints463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 219Z
BrakeProblemPossible causes/consequences and M Solutions!The yellow ABS
indicator lamp
comes on while
the engine is
running.The ABS has detected a malfunction and switched off. The BAS,
the EBB, the ESP ®
, and the 4-ETS are also switched off.
The 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 203).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.
!The 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 203).XIf the ABS indicator lamp does not go out: Have the alternator
and the battery checked.!The yellow ABS
indicator lamp
comes on while
the engine is
running.You have engaged the differential locks. The ABS, the BAS, the
EBB, the ESP ®
, and the 4-ETS are switched off.XThe driving systems will switch on again after the differential
locks have been disengaged.220What to do if …Practical hints
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iAfter 60 seconds with an unfastened seat belt the warning chime stops sounding and the
seat belt telltale illuminates continuously. The seat belt telltale will only go out if both, the
driver and front passenger’s seat belt are fastened, or the vehicle is standing still and a front
door is opened.ProblemPossible causes/consequences and M Solutions+The red SRS
indicator lamp
comes on while
driving.There is a malfunction in the restraint systems. 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.GWarning!
In the event a malfunction of the SRS is
indicated as outlined above, the SRS may not
be operational.
For your safety, we strongly recommend that
you contact an authorized Mercedes-Benz
Center immediately to have the system
checked. Otherwise the SRS may not be
activated when needed in an accident, which
could result in serious or fatal injury, or it
might deploy unexpectedly and unnecessarily
which could also result in injury.ProblemPossible causes/consequences and M SolutionsdThe yellow ESP ®
warning lamp
comes on while
the engine is
running.The ESP ®
has been switched off.
Risk of accident!
When the ESP ®
is switched off it will not stabilize the vehicle if the
system recognizes that the vehicle starts to skid or that a wheel
is spinning.XSwitch the ESP ®
back on.
Exceptions: ( Y page 54).XIf leaving the ESP ®
switched off, adapt your speed and driving
to the prevailing road and weather conditions.XIf the ESP ®
cannot be switched back on: Have the system
checked at an authorized Mercedes-Benz Center as soon as
possible.You have engaged the differential locks. The ABS, BAS, EBB,
ESP ®
, and 4-ETS are switched off.XThe driving systems will switch on again after the differential
locks have been disengaged.What to do if …223Practical hints463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 223Z
ProblemPossible causes/consequences and M SolutionsdThe yellow ESP ®
warning lamp
flashes while
driving.The ESP ®
or the 4-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 ESP ®
.
Exceptions: ( Y page 54).
Failure to follow these instructions increases the risk of an
accident.
Vehicle
ProblemPossible causes/consequences and M SolutionsThe yellow fuel tank
reserve warning lamp in
the fuel gauge comes
on while driving.The fuel level has gone below the reserve mark.XRefuel at the next gas station.The yellow fuel tank
reserve warning lamp in
the fuel gauge comes
on when the engine is
running.The fuel cap is not closed properly.XClose the fuel cap.224What to do if …Practical hints
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TiresProblemPossible causes/consequences and M SolutionshUSA only:
Combination
low tire pressure
telltale/TPMS
malfunction
telltale for the
Advanced TPMS
illuminates
continuously.
Canada only:
Low tire
pressure telltale
for the
Advanced TPMS
illuminates
continuously.The Advanced TPMS detects a loss of pressure in at least one tire.XCarefully bring the vehicle to a halt, avoiding abrupt steering and
braking maneuvers. Observe the traffic situation around you.XRead and observe messages in the multifunction display
( Y page 203).
If the tire inflation pressure in the respective tire(s) has (have) been
corrected, the combination low tire pressure/TPMS malfunction
telltale goes out after a few minutes of driving.
hUSA only:
Combination
low tire pressure
telltale/TPMS
malfunction
telltale for the
Advanced TPMS
flashes 60
seconds and
then stays
illuminated.There is a malfunction in the Advanced TPMS.XRead and observe messages in the multifunction display
( Y page 203).XHave the Advanced TPMS checked at an authorized Mercedes-
Benz Center.
After the malfunction has been remedied, the combination low tire
pressure/TPMS malfunction telltale goes out after a few minutes
of driving.
GWarning!
Each tire, including the spare (if provided),
should be checked at least once a month
when cold and inflated to the inflation
pressure recommended by the vehicle
manufacturer on the Tire and Loading
Information placard on the driver’s door B-
pillar or the tire inflation pressure label on the
inside of the fuel filler flap. If your vehicle has
tires of a different size than the size indicated
on the Tire and Loading Information placard
or the tire inflation pressure label, you should
determine the proper tire inflation pressure
for those tires.
As an added safety feature, your vehicle has
been equipped with a tire pressure monitoring
system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires are significantly underinflated.
Accordingly, when the low tire pressure
telltale illuminates, you should stop and check
your tires as soon as possible, and inflate
them to the proper pressure. Driving on a
significantly underinflated tire causes the tire
to overheat and can lead to tire failure.226What to do if …Practical hints
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Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehicle’s
handling and stopping ability. Please note that
the TPMS is not a substitute for proper tire
maintenance, and it is the driver’s
responsibility to maintain correct tire
pressure, even if underinflation has not
reached the level to trigger illumination of the
TPMS low tire pressure telltale.
USA only:
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate when
the system is not operating properly. The
TPMS malfunction indicator is combined with
the low tire pressure telltale. When the
system detects a malfunction, the telltale will
flash for approximately 1 minute and thenremain continuously illuminated. This
sequence will continue upon subsequent
vehicle start-ups as long as the malfunction
exists. When the malfunction indicator is
illuminated, the system may not be able to
detect or signal low tire pressure as intended.
TPMS malfunctions may occur for a variety of
reasons, including the installation of
incompatible replacement or alternate tires
or wheels on the vehicle that prevent the
TPMS from functioning properly. Always
check the TPMS malfunction telltale after
replacing one or more tires or wheels on your
vehicle to ensure that the replacement or
alternate tires and wheels allow the TPMS to
continue to function properly.
Lamp in center console
ProblemPossible causes/consequences and M Solutions4/
The front passenger
front air bag off
indicator lamp
illuminates and
remains illuminated
( Y page 36).A BabySmart™ child seat is installed on the front passenger seat
or the front passenger seat is empty. Therefore the front
passenger front air bag is switched off.The system is malfunctioning when the front passenger seat is
occupied with an adult or someone larger than a small individual.XHave the front passenger reposition himself or herself in the
seat.
If the front passenger front air bag of indicator lamp remains
illuminated:
XHave the system checked as soon as possible at an authorized
Mercedes-Benz Center.GWarning!
If the 4/ indicator lamp illuminates
and remains illuminated with the front
passenger seat occupied with an adult or
someone larger than a small individual, do not
transport a child or an passenger on the front
passenger seat until the system has been
repaired.What to do if …227Practical hints463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 227Z
Brush guard (USA only)
Example illustration G 55 AMG
GWarning!
The brush guard is designed solely to enhance
the appearance of the vehicle and help
protect grille and headlights from minor
mishaps, either on- or off road.
Since the safety characteristics are limited in
the event of an accident, brush guard are not
intended to prevent injury or damage in the
event of an accident. Also check state and
local regulations on installation and use.
Raise and lower brush guard in an open space
with plenty of room.
iOnly lower brush guard to clean
headlamps.
XLowering: While holding brush guard
firmly, open quick lock ; using locking and
unlocking handle :.
XGently lower brush guard until it reaches its
fully lowered position.
XRaising and securing: Flip up brush guard
until it contacts end stop joint ?.
Quick lock stop pin must engage the cross
slot recess in lock =.
XNow turn quick lock ; so that quick
lock ; makes contact with end stop
joint ?.
XLock quick lock ; on both sides of brush
guard using locking and unlocking
handle :.
! Make sure both quick stop pins are
seated fully in lock.
Replacing SmartKey batteries
If the batteries in the SmartKey are
discharged, the vehicle can no longer be
locked or unlocked. It is recommended to
have the batteries replaced at an authorized
Mercedes-Benz Center.
GWarning!
Batteries contain poisonous and corrosive
substances. Therefore, keep the batteries out
of reach of children.
If a battery is swallowed, seek medical help
immediately.
GWarning!
SmartKey batteries contain perchlorate
material, which may require special handling
and regard for the environment. Check with
your local government’s disposal guidelines.
California residents, see www.dtsc.ca.gov/
HazardousWaste/Perchlorate/
index.cfm.
Batteries contain materials that can harm the
environment if disposed of improperly.
Recycling of batteries is the preferred method
of disposal. Many states (USA only) or
provinces (Canada only) require sellers of
batteries to accept old batteries for recycling.
When inserting the batteries, make sure they
are clean and free of lint.
232Replacing SmartKey batteriesPractical hints
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XGently press onto bulb ? and turn
counterclockwise out of its bulb socket.
XGently press the new bulb into the bulb
socket and turn clockwise until it engages.
XInsert the bulb socket back into side
marker lamp housing ;.
XReinstall dust cover =.XReinstall side marker lamp housing ;.XInstall and tighten securing screws :.
iDo not overtighten securing screws :.
Otherwise side marker lamp housing ;
could be damaged.
Replacing bulbs for rear lamps
Before you start to replace a bulb for a rear
lamp, do the following:
XSwitch off the ignition.XTurn the exterior lamp switch to position
$.
Removing/installing rear lamp guard
(G 55 AMG only)
XRemove screws ;.XSwivel rear lamp guard : outward. Make
sure the guard does not strike painted
surfaces.
XSwivel rear lamp guard : back after
replacing bulbs and fasten it with
screws ;.
Tail lamp unit XG 55 AMG only: Remove the rear lamp
guard.
Example illustration: Left tail lamp lens (right taillamp lens laterally reversed)
XLoosen and remove securing screws :.XRemove tail lamp lens ;.
Example illustration: Left tail lamp unit (right taillamp unit laterally reversed)
=Turn signal lamp bulb?Brake, tail, parking and standing lamp
bulb
ATail, parking and standing lamp bulbXGently press onto respective bulb =, ?,
or A and turn counterclockwise out of its
bulb socket.
XGently press the new bulb into the bulb
socket and turn clockwise until it engages.
XReinstall tail lamp lens ;.XInstall and tighten securing screws :.Replacing bulbs237Practical hints463_AKB; 3; 35, en-USd2ureepe,Version: 2.11.8.12009-07-16T20:59:56+02:00 - Seite 237Z