2009 MERCEDES-BENZ GL SUV radio

X
Start the engine.
X Use W orX on the multi-function
steering wheel to select the Vehiclesub-
menu.
X Keep pressing &or* until the Com‐
pass calibration message appears.
The selection marker highlights switched
off . X
Use W orX to select Start.
In the multi-function display, you will see
the Compass calibration active
Please drive a full circle message.
X Drive the vehicle a full circle at approx-
imately 5 – 10 km/h.
When calibration is completed, you will see
the following message in the multi-function
display: Compass calibration Comple‐
ted successfully
If you do not see the Compass calibration
Completed successfully message in the
multi-function display, drive another full cir-
cle. If calibration is not successful within
three minutes of it starting, the Compass
calibration message will appear in the
multi-function display again. This means that
compass calibration is impossible because of
external interference. Repeat calibration at
another location. Floormat* on the driver's side
G
Risk of accident
Make sure that there is sufficient clearance
around the pedals when floormats are used,
and that the floormats are properly secured.
The floormats must be correctly secured at all
times using retainers and press-studs. Before you drive off, check the floormats and
secure if necessary. A floormat which is not
properly secured can slip and, thereby, inter-
fere with the movement of the pedals.
Do not place floormats on top of one another.
X
Slide seat backwards.
X To fit: place the floormat in position.
X Press studs :onto retainers ;.
X To remove: pull floormat off retainers ;.
X Remove the floormat. Infrared reflecting windscreen*
The infrared reflecting glass prevents the
vehicle interior from becoming too hot. It also
blocks radio waves up into the gigahertz
range. In order to operate radio-controlled equip-
ment (e.g. toll recording systems), areas :
on the windscreen are transparent to radio
waves. You can install radio-controlled sys-
tems here. These areas can best be seen from 168
FeaturesControls
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outside the vehicle by observing the light
reflected off the windscreen.
Retrofitted anti-glare film
Anti-glare film retrofitted to the insides of the
windows could interfere with radio or mobile
phone reception, especially if it is conductive
or metal-coated film. Information about anti-
glare film can be obtained from any
Mercedes-Benz Service Centre. Features
169Controls
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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
183Operation
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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 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
Display
messagesPractical advice
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Display messages
Possible causes/consequences and
X
X Solutions + Key not
detected
(red display
message)
The KEYLESS GO key* is not in the vehicle.
If the engine is switched off, you can no longer lock the vehicle
centrally or start the engine.
X
Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions.
X Locate the KEYLESS GO key*. The KEYLESS GO key* is not detected while the engine is
running because there is interference from a strong source of
radio waves.
X Pull over and stop the vehicle safely as soon as possible,
paying attention to road and traffic conditions.
X Operate the vehicle using the key in the ignition lock if nec-
essary. + Key not
detected
(white dis-
play mes-
sage)
The KEYLESS GO* key cannot be detected at present.
X
Change the location of the key with the KEYLESS GO func-
tion* in the vehicle.
X If the key with the KEYLESS GO* function still cannot be
detected: operate the vehicle with the key in the ignition
lock. + Key detec‐
ted in
vehicle
The KEYLESS GO key* has been detected inside the vehicle
during locking.
X
Remove the KEYLESS GO key* from the vehicle. + You need
a new key The key must be replaced.
X
Visit a qualified specialist workshop. + starting
button,
then
insert key
The KEYLESS GO* key cannot be detected continuously.
X
Insert the key into the ignition lock and turn it to the desired
position.
X Visit a qualified specialist workshop. & inopera‐
tive Bat‐
tery weak The on-board voltage is too low. The auxiliary heating/venti-
lation* has switched off or cannot be switched on.
X
Drive for a longer distance.
The battery is being charged. The auxiliary heating/venti-
lation *can be reactivated as soon as there is sufficient on-
board voltage. Display messages
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Problem
Possible causes/consequences and
X
X Solutions Only the red segments
in the PARKTRONIC
warning display are lit.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds. The problem may be caused by an external source of radio or
ultrasound waves.
X
See if PARKTRONIC functions in a different location. Headlamps
Problem
Possible causes/consequences and
X
X Solutions The headlamps are mis-
ted up on the inside. Air humidity is very high.
X Drive with the headlamps switched on.
The headlamps are demisted after a short distance. The headlamp housing is not sealed and moisture has been able
to enter.
X
Have the headlamps checked at a qualified specialist workshop. Windscreen wipers
Problem
Possible causes/consequences and
X
X Solutions The windscreen wipers
are jammed. Leaves or snow, for example, may be obstructing the windscreen
wiper movement. The wiper motor has been deactivated.
X
For safety reasons, you should remove the key from the ignition
lock.
X Remove the cause of the obstruction.
X Switch the windscreen wipers back on. The windscreen wipers
fail completely.
G
Risk of accident
The windscreen wiper drive is malfunctioning.
X Select another wiper speed on the combination switch.
X Have the windscreen wipers checked at a qualified specialist
workshop. The windscreen washer
fluid from the spray
nozzles no longer hits
the centre of the wind-
screen. The spray nozzles are misaligned.
X
Have the spray nozzles adjusted at a qualified specialist work-
shop. Troubleshooting
245Practical advice
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Key
Problem
Possible causes/consequences and
X
X Solutions You cannot lock or
unlock the vehicle
using the key. The key batteries are discharged or nearly discharged.
X
Point the tip of the key at the driver's door handle from close
range and try to unlock or lock the vehicle again.
If this does not work:
X Unlock the vehicle using the emergency key element
(Y page 250).
X Check the key batteries and replace them if necessary
(Y page 253). The key is faulty.
X
Lock/unlock the vehicle as described in the "Opening and clos-
ing in an emergency" section (Y page 250).
X Have the key checked at a qualified specialist workshop. You can no longer lock
or unlock the vehicle
using KEYLESS GO*.
KEYLESS GO* is in standby mode because the vehicle has not
been unlocked for an extended period.
X
Pull the door handle twice and then insert the key into the igni-
tion lock. KEYLESS-GO* is malfunctioning.
X
Lock/unlock the vehicle using the remote control function of
the key. Point the tip of the key at the driver's door handle from
close range and press the %/&button.
X Have the key checked at a qualified specialist workshop. There is interference from a powerful source of radio waves.
X
Lock/unlock the vehicle as described in the "Opening and clos-
ing in an emergency" section (Y page 250).You have lost a key.
X
Have the key cancelled at a Mercedes-Benz Service Centre.
X Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. You have lost the emer-
gency key element.
X
Report the loss immediately to the vehicle insurers.
X If necessary, have the manual locks changed too. Troubleshooting
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