2010 MERCEDES-BENZ GL450 key

Have the brake system inspected
immediately. Contact an authorized
Mercedes-Benz Center.
All checks and service work on the brake
system should be carried out by qualified
technicians only. Contact an authorized
Mercedes-Benz Center.
Only install brake pads and use brake fluid
recommended by Mercedes-Benz.GWarning!
If other than recommended brake pads are
installed, or other than recommended brake
fluid is used, the braking properties of the
vehicle can be degraded to an extent that safe
braking is substantially impaired. This could
result in an accident.
! Only conduct operational or performance
tests on a two-axle dynamometer. If such
tests are necessary, contact an authorized
Mercedes-Benz Center. You could
otherwise seriously damage the brake
system or the transfer case which is not
covered by the Mercedes-Benz Limited
Warranty.
! Because the ESP ®
operates
automatically, the engine and ignition must
be shut off (SmartKey in starter switch
position 0 or 1 or KEYLESS-GO start/stop
button in position 0 or 1) when the parking
brake is being tested on a brake test
dynamometer. Such testing should be no
longer than 10 seconds.
Active braking action through the ESP ®
may otherwise seriously damage the brake
system which is not covered by the
Mercedes-Benz Limited Warranty.
If your brake system is only subjected to
moderate loads, you should occasionally test
the effectiveness of the brakes by applying
above-normal braking pressure at higher
speeds. This will also enhance the grip of the
brake pads.
GWarning!
Make sure not to endanger any other road
users when carrying out these braking
maneuvers.
Refer to the description of the Brake Assist
System (BAS) ( Y page 63).
Parking brake
When driving on wet roads or dirt covered
surfaces, road salt and/or dirt can get into
the parking brake.
To prevent corrosion and a reduction in the
braking power of the parking brake, observe
the following:
XFrom time to time, lightly engage the
parking brake before driving off.XDrive a distance of approximately 110 yds
(100 m) at a maximum speed of 12 mph
(20 km/h).GWarning!
While performing this procedure please
assure that the vehicle is stopped before
applying the parking brake. Otherwise the
rear wheels could lock up. You could lose
control of the vehicle and cause an accident.
In addition, the vehicle’s brake lights do not
light up when the parking brake is engaged.
Make sure not to endanger any other road
users when you engage the parking brake.
Driving off
Warm up the engine smoothly. Do not place
full load on the engine until the operating
temperature has been reached.
! When driving off on a slippery surface, do
not allow a drive wheel to spin for an
extended period with the ESP ®
switched
off. Doing so may cause serious damage to
the drivetrain which is not covered by the
Mercedes-Benz Limited Warranty.
Driving instructions261OperationX164_AKB; 5; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:30:16+02:00 - Seite 261Z

here. In such cases it is best to seek aid at an
authorized Mercedes-Benz Center.
The following topics deal with the cleaning
and care of your vehicle and give important
“how-to” information as well as references to
Mercedes-Benz approved vehicle-care
products.
Power washer
! Follow the instructions provided by the
power washer manufacturer on
maintaining a distance between the vehicle
and the nozzle of the power washer.
Never use a round nozzle to power-wash
tires. The intense jet of water can result in
damage to the tire.
Always replace a damaged tire.
Always keep the jet of water moving across
the surface. Do not aim directly at electrical
parts, electrical connectors, seals, or other
rubber parts.
i Vehicles with KEYLESS-GO:
If a door handle is hit by a strong jet of
water, and a SmartKey is within
approximately 3 ft (1 m) of the vehicle, it
could be inadvertently locked or unlocked.
Tar stains
Quickly remove tar stains before they dry and
become more difficult to remove. A tar
remover is recommended.
Paintwork, painted body components
! Affixing stickers, magnets, adhesive tape
or similar materials to painted body
components may damage the paintwork.
Mercedes-Benz approved Paint Care should
be applied when water drops on the paint
surface do not “bead up”. This should
normally be done every 3 to 5 months,
depending on the climate and washing
detergent used.
Mercedes-Benz approved Paint Cleaner
should be applied if the paint surface shows
signs of embedded dirt (i.e. loss of gloss).
Do not apply any of these products or wax if
your vehicle is parked in the sun or if the hood
is still hot.XUse the appropriate MB-Touch-Up Stick for
quick and provisional repairs of minor paint
damage (i.e. chips from stones, vehicle
doors, etc.).
Engine cleaning
Prior to cleaning the engine compartment,
make sure to protect electrical components
and connectors from contact with water and
cleaning agents.
Corrosion protection, such as MB
Anticorrosion Wax should be applied to the
engine compartment after every engine
cleaning. Before applying, all control linkage
bushings and joints should be lubricated. The
poly-V-belt and all pulleys should be
protected from any wax.
Vehicle washing
In the winter, thoroughly remove all traces of
road salt as soon as possible.
When washing the vehicle underbody, do not
forget to clean the inner sides of the wheels.
i Vehicles with KEYLESS-GO:
If a door handle is hit by a strong jet of
water, and a SmartKey is within
approximately 3 ft (1 m) of the vehicle, it
could be inadvertently locked or unlocked.
Hand-wash
XDo not use hot water or wash your vehicle
in direct sunlight.XOnly use a soft, wet cloth or sponge to
clean the vehicle.XOnly use a mild vehicle wash detergent,
such as Mercedes-Benz approved Car
Shampoo.276Vehicle careOperation
X164_AKB; 5; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:30:16+02:00 - Seite 276

Cleaning the driving systems sensorsXSwitch off the ignition.XClean Distronic system sensor cover : by
hand.
To clean Distronic system sensor cover :
and the bumper area near sensors ; observe
the following:
RUse a mild vehicle wash detergent, such as
Mercedes-Benz approved Car Shampoo,
with plenty of water.
RUse a soft, non-scratching cloth.
! If you use a power washer to clean the
sensor covers, observe the following:
RFollow the instructions provided by the
power washer manufacturer.
RMaintain a distance between the sensor
covers and the nozzle of the power
washer.
Cleaning the rear view camera lensXOnly use clean water and a soft, non-
scratching cloth to clean rear view camera
lens :.
Be careful not to apply wax to rear view
camera lens : when waxing the vehicle. If
necessary, remove the wax using the
Mercedes-Benz approved Car Shampoo with
plenty of water.
! Do not clean the camera and the area
around the camera
Rwith a high-pressure cleaner
Rwith a dry cloth and strong pressure
Rwith aggressive cleaning agents
You could otherwise damage the camera.
Cleaning the windows and the wiper
blades
! Never open the hood when the wiper arms
are folded forward.
GWarning!
For safety reasons, switch off wipers and
remove SmartKey from starter switch before
cleaning the windshield and/or the wiper
blades. Vehicles with KEYLESS-GO: Make
sure the vehicle’s on-board electronics have
status 0. Otherwise, the wiper motor could
suddenly turn on and cause injury.
! Do not pull on the wiper blade inserts.
They could tear.
278Vehicle careOperation
X164_AKB; 5; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:30:16+02:00 - Seite 278

XFold the wiper arms forward until they snap
into place.XClean the windshield and the wiper blade
inserts with a clean cloth and mild
detergent solution.XUse a soft, clean cloth and a mild window
cleaning solution on all outside and inside
glass surfaces.
An automotive glass cleaner is
recommended.
! Fold the windshield wiper arms back onto
the windshield before turning the SmartKey
in the starter switch or pressing the
KEYLESS-GO start/stop button.
Hold on to the wiper when folding the wiper
arm back. If released, the force of the
impact from the tensioning spring could
crack the windshield.
! To clean the window interior, do not use
a dry cloth, abrasives, solvents or cleaners
containing solvents. Do not touch the
inside of the windows with hard objects
such as an ice scraper or ring. Doing so may
damage the windows.
Light alloy wheels
If possible, clean wheels once a week.
XUse Mercedes-Benz approved Wheel Care,
a soft bristle brush and a strong spray of
water for cleaning the light alloy wheels.
! Only use acid-free cleaning materials.
Acid may cause corrosion or damage the
clear coat.
! The vehicle should not be parked for an
extended period of time immediately after
it has been cleaned. This applies especially
after the wheel rims have been cleaned
with wheel rim cleaner. Wheel rim cleaners
can lead to increased corrosion of the
brake disks and brake pads. Non-approved
wheel cleaners may also damage the wheel
paint if the vehicle is not driven after
cleaning.
Therefore, the vehicle’s brake system
should always be warmed-up before it is
parked after cleaning. Drive your vehicle for
several minutes to allow the brakes to dry.
When applying Mercedes-Benz approved
Tire Care and Mercedes-Benz approved
Wheel Care products, take care not to
spray them on the brake disks.
Plastic and rubber partsXUse a gentle dishwashing detergent or mild
detergent for delicate fabrics as a washing
solution.XWipe with a cloth moistened in a lukewarm
solution.
The surface may temporarily change color.
If this is the case, wait for it to dry.GWarning!
Do not use cleaners or cockpit care sprays
containing solvents to clean the cockpit or the
steering wheel. Cleaners containing solvents
will make the surface porous and vehicle
occupants could suffer serious injuries from
plastic parts coming loose in the event of air
bag deployment.
! Do not use oil, wax or scouring agents.
Otherwise you may scratch or damage the
surface.
Hard plastic trim items
XUse Mercedes-Benz approved Interior Care
on a soft, lint-free cloth and apply with light
pressure.
COMAND display
! You must switch off the COMAND display
and allow it to cool prior to cleaning.
! Do not use any liquids or cleaning agents.
These can damage or even destroy the
COMAND display screen.
XUse a standard microfiber cloth and apply
with light pressure.Vehicle care279OperationX164_AKB; 5; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:30:16+02:00 - Seite 279Z

Vehicle equipment ............................284
Where will I find ...? ..........................284
Vehicle status messages in the
multifunction display .......................287
What to do if … ..................................314
Unlocking/locking manually ...........323
Resetting activated NECK-PRO
active front head restraints .............325
Replacing SmartKey batteries .........326
Replacing bulbs .................................328
Replacing wiper blades ....................334
Flat tire ..............................................336
Bleeding the fuel system (diesel
engine only) .......................................345
AdBlue® (diesel engine only) ...........346
Battery ...............................................348
Jump starting ....................................350
Towing the vehicle ............................352
Fuses ..................................................355
283Practical hintsX164_AKB; 5; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:30:16+02:00 - Seite 283

VehicleDisplay messagesPossible causes/consequences and M SolutionsDepress
brake to
shift out
of P.You have attempted to shift the automatic transmission into
drive position D, reverse gear R or neutral position N without
depressing the brake pedal.XDepress the brake pedal.Door OpenVehicle
Not In
ParkYou have opened the driver’s door and the automatic
transmission is still in drive position D, reverse gear R or
neutral position N.XBefore you leave the vehicle, make sure the automatic
transmission is in park position P and the parking brake is
engaged.Drive to
workshop
without
shifting
gears.The automatic transmission cannot be shifted out of the
current transmission position because of a malfunction.
If the automatic transmission is in drive position D:XWithout shifting the automatic transmission out of drive
position D, drive to an authorized Mercedes-Benz Center.
If the automatic transmission is set to neutral position N,
reverse gear R or park position P:
XDo not drive.XContact an authorized Mercedes-Benz Center or call
Roadside Assistance.Only
shift to
P when
vehicle
is at a
standstill
.You have attempted to shift the automatic transmission into
park position P although the vehicle was still in motion.XStop the vehicle.Shift to
P or N to
start
engine.You have attempted to start the engine with the KEYLESS-GO
start/stop button while the automatic transmission was in
reverse gear R or drive position D.XShift the automatic transmission into park position P or
neutral position N. Make sure the brake pedal is depressed.Auxiliary
BatteryMalfunctio
nThe backup battery for the automatic transmission is no
longer charging.XContact an authorized Mercedes-Benz Center.296Vehicle status messages in the multifunction displayPractical hints
X164_AKB; 5; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:30:16+02:00 - Seite 296

Display messagesPossible causes/consequences and M Solutions$
(USA only)
J
(Canada
only)EBV, ABS,
ESP
Inoperativ
e See
Operator’s
ManualThe brake system is still functioning normally but due to a
malfunction, the ABS, the BAS, the EBP, the ESP ®
, and the
PRE-SAFE ®
system are unavailable.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.$
(USA only)
!
(Canada
only)Release
Parking
BrakeYou are driving with the parking brake engaged. In addition
an acoustic warning sounds.XRelease the parking brake.$
(USA only)
J
(Canada
only)Check
Brake
Fluid
LevelThere is insufficient brake fluid in the reservoir.
Risk of accident!XStop the vehicle in a safe location or as soon as it is safe
to do so.XEngage the parking brakeXDo not drive any further.XContact an authorized Mercedes-Benz Center or call
Roadside Assistance.
Do not add brake fluid! This will not solve the problem.
GWarning!
Driving with the message Check Brake Fluid Level displayed can result in an accident. Have
your brake system checked immediately.
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.
300Vehicle status messages in the multifunction displayPractical hints
X164_AKB; 5; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:30:16+02:00 - Seite 300

VehicleDisplay messagesPossible causes/consequences and M SolutionsEYou are driving with the hood or the tailgate open.XStop the vehicle in a safe location as soon as it is safe to
do so.XClose the hood ( Y page 229) or the tailgate ( Y page 75).
There is otherwise danger of an accident.
You are trying to lock the vehicle with the KEYLESS-GO
function with a door or the tailgate open.XClose all doors and/or the tailgate ( Y page 75).;You are driving with at least one door open.XClose all doors.+Key
Detected
In VehicleA SmartKey with KEYLESS-GO left in the vehicle was
recognized while trying to lock the vehicle from the outside.XTake the SmartKey out of the vehicle.+Don’t
Forget
Your KeyThis message appears for a maximum of 60 seconds if the
driver’s door is opened with the engine turned off and no
SmartKey in the starter switch. This message is only a
reminder.XTake the SmartKey with you when leaving the vehicle.+Remove KeyYou have forgotten to remove the SmartKey.XRemove the SmartKey from the starter switch.+You need
a new key.The SmartKey is malfunctioning.XContact an authorized Mercedes-Benz Center.+Key Does
Not
Belong to
VehicleThe SmartKey in the starter switch does not belong to the
vehicle.XFind the SmartKey that belongs to the vehicle to operate
the vehicle.+Change
Key
BatteriesThe batteries in the SmartKey with KEYLESS-GO are
discharged.XReplace the batteries ( Y page 326).304Vehicle status messages in the multifunction displayPractical hints
X164_AKB; 5; 31, en-USd2ureepe,Version: 2.11.8.12009-09-11T12:30:16+02:00 - Seite 304