sensor MERCEDES-BENZ GL SUV 2009 Owner's Manual

G
Risk of accident
The tyre pressure loss warning system can
only give reliable warnings if you have set the
correct tyre pressure.
If an incorrect tyre pressure is set, these
incorrect values will be monitored.
A tyre with insufficient pressure results in
vehicle instability when driving, thus increas-
ing the risk of an accident.
X Make sure that the key is in position
2 (Y page 63) in the ignition lock.
In the multi-function display you will see the
standard display (Y page 98).
X Press *or& to select the Tyre
pressure function.
The
Run Flat Indicator active
Menu: R-Button message is displayed.
X Press the reset button (Y page 25) on the
instrument cluster.
The multi-function display shows the mes-
sage:
Restart Run Flat Indicator?
Yes Cancel
If you wish to confirm the restart:
X Press the Wbutton.
The multi-function display shows the mes-
sage:
Run Flat Indicator restarted
After a teach-in period, the tyre pressure
loss warning system will monitor the set
tyre pressures of all four tyres.
If you wish to cancel the restart:
X Press the Xbutton.
or
X Wait until the Restart Run Flat Indi‐
cator? Yes Cancel message disappears.
The tyre pressure values stored at the last
restart will continue to be monitored. Tyre pressure monitor*
If a tyre pressure monitor system is fitted, the
vehicle's wheels have sensors fitted that
monitor the tyre pressures in all four tyres.
The tyre pressure monitor warns you when
the pressure drops in one or more of the
tyres. The tyre pressure monitor only func-
tions if the correct wheel electronics units are
fitted to all wheels. G
Risk of accident
The tyre pressure monitor does not warn you
of an incorrectly set tyre pressure. The table
on the inside of the fuel filler flap will help you
decide whether the tyre pressures should be
corrected.
The tyre pressure monitor is not able to warn
you of a sudden loss of pressure, e.g. if the
tyre is penetrated by a foreign object. In the
event of a sudden loss of pressure, bring the
vehicle to a halt by braking carefully. Do not
make any sudden steering movements when
doing so.
i The operation of the tyre pressure moni-
tor can be affected by interference from
radio transmitting equipment (e.g. radio
headphones, two-way radios) that may be
being operated in or near the vehicle.
Checking tyre pressure electronically X
Make sure that the key is in posi-
tion 2(Y page 63) in the ignition lock.
X Press the &or* button to select the
Tyre pressure function.
The current tyre pressure for each wheel will
be displayed in the multi-function display.
If the vehicle has been parked for longer than
20 minutes or if you have not driven faster
than 25 km/h since starting the vehicle, the
following message appears:
i The tyre pressure values indicated by the
on-board computer may differ from those
measured at a filling station with a pressure
gauge. The tyre pressures shown by the on- Tyres and wheels
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board computer refer to those measured at
sea level. At high altitudes, the tyre pres-
sure values indicated by a pressure gauge
are higher than those shown by the on-
board computer. In this case, do not reduce
the tyre pressures.
i After a teach-in period, the tyre pressure
monitor automatically recognises new
wheels or new sensors. As long as a clear
allocation of the tyre pressure values to the
individual wheels is not possible, the dis-
play message Tyre pressure monitor
active is shown instead of the tyre pres-
sure display. The tyre pressures are already
being monitored.
Restarting the tyre pressure monitor When you restart the tyre pressure monitor,
all existing warning messages are deleted and
the warning lamps go out. The monitor uses
the currently set tyre pressures as the speci-
fied values for monitoring.
In most cases, the tyre pressure monitor will
automatically detect the new reference val-
ues, e.g. if you have:
R changed the tyre pressure
R changed the wheels or tyres
R fitted new wheels or tyres
i You will find the menu overview on
(Y page 99).
If you wish to define the new reference values
manually:
X Use the table on the inside of the fuel filler
flap to ensure that the tyre pressure is set
correctly in all four tyres for the current
operating conditions.
Also observe the notes in the section on
tyre pressures (Y page 180).
X Make sure that the key is in position 2in
the ignition lock.
X Press the &or* button to select the
Tyre pressure function or wait until the
following message appears: X
Press the reset button on the instrument
cluster (Y page 25).
The multi-function display shows the mes-
sage:
Restart tyre pressure monitor?
Yes Cancel
X Press the Wbutton.
The multi-function display shows the mes-
sage:
Tyre pressure monitor restarted
The tyre pressure monitor has stored the
pressure of the tyres as a new reference
value.
Cancelling the restart X
Press the Xbutton.
Other messages in the multi-function
display If in multi-function display the following mes-
sage appears:
Please correct tyre pressures
X
Check the tyre pressure on all four wheels
and correct it if necessary.
i If the wheel positions on the vehicle are
interchanged, the tyre pressures may be
displayed for the wrong positions for a
short time. This is rectified after a few
minutes of driving, and the tyre pressures
are displayed for the correct positions. Interchanging the wheels
G
Risk of accident
Interchange the front and rear wheels only if
they have the same dimensions: for example
size, offset, etc.
After a wheel is changed, have the tightening
torque checked at a specialist workshop that
has the necessary specialist knowledge and
tools to carry out the work required.
Mercedes-Benz recommends that you use a 184
Tyres and wheelsOperation
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Care
Care and cleaning products
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use only care products and cleaning agents
recommended and approved by Mercedes-
Benz.
! For cleaning your vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
and do not scrub.
Do not touch the surfaces and protective
films with hard objects, e.g. rings or ice
scrapers. You could otherwise scratch or
damage the surfaces and protective film. H
Environmental note
Dispose of empty packaging, cleaning cloths
and polishing wads in an environmentally
responsible manner.
! Do not park the vehicle for a long period
of time directly after cleaning, especially if
the wheels have just been cleaned with a
wheel cleaner. Wheel cleaners could cause
rapid corrosion of the brake discs and
brake pads/linings. After cleaning, park
the vehicle when it is at normal operating
temperature. Exterior care
Automatic car wash G
Risk of accident
The efficiency of the brakes is reduced after
using an automatic car wash. This could cause
an accident. For this reason, following a car
wash, drive with particular care until the
brakes are dry. You can wash the vehicle in an automatic car
wash from the beginning.
!
Do not wash vehicles with an exterior
spare wheel bracket* in an automatic car
wash.
If the vehicle is very dirty, pre-wash it before
cleaning it in an automatic car wash.
! Make sure that the automatic car wash is
suitable for the size of the vehicle. Fold in
the exterior mirrors before the vehicle is
washed. There is otherwise a risk of dam-
age to the exterior mirrors.
! When washing your vehicle in a tow-
through car wash, make sure that the auto-
matic transmission is in position N, other-
wise the vehicle could be damaged.
R Vehicles with a key:
Do not remove the key from the ignition
lock. Do not open the driver's or front-
passenger door when the engine is
switched off, as this automatically shifts
the automatic transmission to park posi-
tion Pand locks the wheels, unless you
have previously shifted the automatic
transmission to N.
R Vehicles with KEYLESS GO*:
Do not open the driver's or front-
passenger door when the engine is
switched off, as this shifts the automatic
transmission to park position Pand locks
the wheels.
! Make sure that the side windows are com-
pletely closed, that the ventilation/heater
blower is fully turned off and that the wind-
screen wiper switch is set to 0. Otherwise,
the rain/light sensor may be activated, trig-
gering unintended wiper movements. This
could cause damage to the vehicle.
After using an automatic car wash, wipe off
wax and drying agents from the windscreen
and the wiper blades. This will prevent smears
and reduce wiping noises caused by residue
on the windscreen. Care
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!
Do not clean the wiper blades too often,
and avoid rubbing too hard, as this could
result in damage to the graphite coating.
This could cause wiper noise.
X Fold the wiper arms away from the wind-
screen.
X Clean the wiper blades carefully with a
damp cloth.
X Fold the wiper arms back again before
switching on the ignition.
Cleaning the headlamps X
Clean the plastic lenses of the headlamps
with a wet sponge and windscreen washer
fluid or cleaning cloths.
! Only use washer fluid or cleaning cloths
suitable for plastic lenses. Unsuitable
washer fluid or cleaning cloths could
scratch or damage the plastic lenses of the
headlamps.
Cleaning the sensors* X
Clean sensors :for the driving systems
with water, car shampoo and a soft cloth. !
If you clean the sensors using a high-pres-
sure cleaner or steam cleaner, observe the
manufacturer's information on maintaining
the correct distance between the vehicle
and the high-pressure cleaner.
Cleaning the reversing camera* X
Use clear water and a soft cloth to clean
camera lens :.
! Do not clean the camera lens and the area
around the reversing camera with a high-
pressure cleaner.
Cleaning the exhaust tail pipes Impurities combined with the effects of road
grit and corrosive environmental factors may
cause flash rust to form on the surface. Reg-
ular care of the exhaust tail pipes will ensure
that their original shine is restored.
!
Do not clean the exhaust tail pipes with
alkaline-based cleaning agents such as
wheel cleaner.
X Clean the exhaust tail pipes with a chrome
care product approved by Mercedes-Benz.
Trailer coupling* The ball coupling must be cleaned if it
becomes dirty or corroded.
X
Remove any rust using a wire brush.
X Remove dirt with a clean, lint-free cloth or
a brush. Care
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Display messages
Possible causes/consequences and
X
X Solutions DISTRONIC - - - km/h
An activation condition for Distronic* is not fulfilled.
X
If conditions permit, drive faster than 30 km/h and store
the speed (Y page 119).
or
X Check the activation conditions for Dis-
tronic* (Y page 119). DISTRONIC Override
Distronic* is no longer controlling the speed of the vehicle.
X
Remove your foot from the accelerator pedal. DISTRONIC inopera‐
tive
Distronic* is faulty or the display has failed.
X
Visit a qualified specialist workshop. DISTRONIC currently
unavaila‐
ble See
Owner's
Manual
Distronic* is deactivated and is temporarily inoperative if:
R
the Distronic* cover in the radiator grille is dirty.
R its function is impaired due to heavy rain or snow.
R the radar sensor system is temporarily inoperative, e.g. due
to electromagnetic radiation emitted by nearby TV or radio
stations or other sources of electromagnetic radiation.
R the radar sensor system has not detected any vehicles or
stationary objects, e.g. traffic signs, for a long time.
R the system is outside the operating temperature range.
Distronic* becomes available again and the display message
disappears when:
R the dirt (e.g. slush) drops away while you are driving.
R the system detects that the sensors are fully available
again.
R the system is within the operating temperature range.
If the display message continues to be shown:
X Clean the Distronic* cover in the radiator grille
(Y page 203).
X Restart the engine. 214
Display
messagesPractical advice
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Display messages
Possible causes/consequences and
X
X Solutions Child
seat in
wrong
position See Own‐
er's Man‐
ual
G
Risk of injury
Vehicles with automatic child seat recognition *on the front-
passenger seat: the child seat is incorrectly positioned.
X Fit the child seat in the correct position. G
Risk of injury
Vehicles with automatic child seat recognition* on the front-
passenger seat: the child seat recognition sensor is faulty.
X Visit a qualified specialist workshop. Compass unavaila‐
ble
The compass* is malfunctioning.
X
Have the compass* checked at a qualified specialist work-
shop. Compass - - -
The compass* is not calibrated.
X
Calibrate the compass* (Y page 167).Compass - - -
The compass* is malfunctioning because of exterior interfer-
ence.
As soon as the source of the interference has been removed:
X
Turn the key to position 0in the ignition lock and remove
it.
X Wait until the total distance recorder has disappeared from
the multi-function display.
X Calibrate the compass* (Y page 167).No Service Your vehicle is outside the network provider transmitter/
receiver range.
X
Wait until the operational readiness symbol appears in the
multi-function display (Y page 111).Drive to
workshop without
changing
gear You cannot change the transmission position due to a mal-
function.
If transmission position
Dis selected:
X Drive to a qualified specialist workshop without shifting the
transmission from position D.
If transmission position R,Nor Pis selected:
X Consult a qualified specialist workshop. 216
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Display messages
Possible causes/consequences and
X
X Solutions P To start
the
engine,
shift to
either P
or N You have attempted to start the engine with the transmission
in position
Ror D.
X Shift the automatic transmission to Por N. Depress
brake to
shift out
of position P
X
Depress the brake pedal. PRE-SAFE inopera‐
tive See
Owner's
Manual
G
Risk of injury
Important functions of PRE-SAFE ®
have failed. All other occu-
pant safety systems, e.g. airbags, remain available.
X Visit a qualified specialist workshop. Tyre pres‐
sure moni‐
tor inopera‐
tive
The tyre pressure monitor* is malfunctioning.
X
Have the tyre pressure monitor* and wheels checked at a
qualified specialist workshop. Tyre pres‐
sure moni‐
tor inopera‐
tive No
wheel sen‐
sors The fitted wheels do not have suitable tyre pressure sensors.
The tyre pressure monitor* is deactivated.
X
Fit wheels with suitable tyre pressure sensors.
The tyre pressure monitor* is activated automatically after
driving for a few minutes. Tyre pres‐
sure moni‐
tor Wheel sen‐
sor miss‐
ing
The tyre pressure monitor* is not receiving signals from one
or more wheels because:
R
a wheel without a suitable tyre pressure sensor has been
fitted, e.g. the emergency wheel*.
R the battery on one of the wheel electronics unit is dis-
charged.
R a wheel electronics unit has malfunctioned.
A line is displayed in the multi-function display for the affected
tyre instead of the tyre pressure value.
X Have the tyre pressure monitor* and wheels checked at a
qualified specialist workshop.
If wheels with suitable tyre pressure sensors are fitted, the
tyre pressures appear in the multi-function display after
driving for a few minutes. Display
messages
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Display messages
Possible causes/consequences and
X
X Solutions Tyre pres‐
sure moni‐
tor currently
unavaila‐
ble No sensor signals can be received due to radio interference.
The tyre pressure monitor* is temporarily malfunctioning.
X
Drive on.
The tyre pressure monitor* restarts automatically as soon
as the problem has been solved. Tyre pres‐
sure Check
tyres
G
Risk of accident
The tyre pressure loss warning system has detected a signif-
icant loss in pressure.
X Stop the vehicle without making any sudden steering or
braking manoeuvres. Pay attention to traffic conditions as
you do so.
X Check the tyres.
X Check the tyre pressure. If necessary, correct the tyre pres-
sure (Y page 180).
X If necessary, repair any defective tyres or change the wheel
(Y page 262).
X Restart the tyre pressure loss warning system once the tyre
pressure is correct (Y page 182).Check
tyres, then
restart
Run Flat
Indicator A tyre pressure loss warning system display message
appeared.
X
Correct the tyre pressure on all tyres ( Ypage 180).
X Restart the tyre pressure loss warning system
(Y page 182). Run Flat
Indicator inopera‐
tive The tyre pressure loss warning system is faulty.
X
Visit a qualified specialist workshop. Please
correct tyre pres‐
sures
Vehicles with tyre pressure monitor*:
There is insufficient pressure in one or more tyres or the tyre
pressures on individual wheels differ too much.
X
Check the tyre pressures at the next opportunity. If neces-
sary, correct the tyre pressure (Y page 180).Cruise
control
and SPEED‐
TRONIC inopera‐
tive Speedtronic and cruise control are faulty.
X
Visit a qualified specialist workshop. DISTRONIC
and SPEED‐
TRONIC inopera‐
tive
Distronic* and Speedtronic are malfunctioning.
X
Visit a qualified specialist workshop. 218
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messagesPractical advice
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Display messages
Possible causes/consequences and
X
X Solutions D Power
steering
malfunc‐
tion See
Owner's
Manual
G
Risk of accident
There is no power assistance for the steering. You will need
to use more force to steer.
X Check whether you are able to apply the extra force
required.
X If you are able to steer safely: carefully drive on to a
qualified specialist workshop.
X If you are unable to steer safely: do not drive on. Contact
the nearest qualified specialist workshop. b Left-hand
Cornering
light
or
Right-
hand Cor‐
nering
light
The left-hand or right-hand cornering lamp* is faulty.
X
Change the bulb ( Ypage 254). b Left-hand
dipped
beam
or
Right-
hand
dipped
beam The left-hand or right-hand dipped-beam headlamp is faulty.
X
Halogen headlamp: replace the bulb (Ypage 254).
X Bi-xenon headlamp*: visit a qualified specialist workshop. b AUTO
lights
inopera‐
tive The light sensor is faulty.
X
Visit a qualified specialist workshop. b Trailer
Left-hand
turn sig‐
nal
or
Trailer
Right-
hand turn
signal The left-hand or right-hand trailer turn signal lamp is faulty.
X
Change the bulb. b Trailer
brake lamp The trailer brake lamp is faulty.
X
Change the bulb. Display
messages
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Automatic transmission
Problem
Possible causes/consequences and
X XSolutions The transmission has
problems shifting gear. The transmission is losing oil.
X
Have the transmission checked at a qualified specialist work-
shop immediately. The acceleration ability
is deteriorating.
The transmission no
longer changes gear. The transmission is in emergency mode.
It is only possible to shift into
secondgear and reverse gear.
X Stop the vehicle.
X Turn the key in the ignition to position 0(Y page 63) or press
the Start/Stop button* repeatedly until all indicator lamps in
the instrument cluster go out.
X Wait at least 10 seconds before restarting the engine.
X Have the transmission checked at a qualified specialist work-
shop immediately. PARKTRONIC*
Problem
Possible causes/consequences and
X XSolutions Only the red segments
in the PARKTRONIC
warning display are lit.
You also hear a warning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds and
the indicator lamp in
the PARKTRONIC but-
ton lights up. PARKTRONIC has malfunctioned and has switched itself off.
X
If problems persist, have PARKTRONIC checked at a qualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning display are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The PARKTRONIC sensors are dirty or there is interference.
X
Clean the PARKTRONIC sensors (Y page 203).
X Switch the ignition back on. 244
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