2009 MERCEDES-BENZ GL SUV tyre pressure

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
* optional
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Display messages
Possible causes/consequences and
X
X Solutions 4 Engine
oil level
Stop car,
turn
engine off The oil level is too low. There is a risk of engine damage.
X
Pull over and stop the vehicle safely, paying attention to
road and traffic conditions.
X Switch off the engine.
X Top up the engine oil and check the level (Y page 176).4 Engine
oil level
Reduce
oil level
You have added too much engine oil
33
. There is a risk of dam-
age to the engine or to the catalytic converter.
X Siphon off excess engine oil until it is at the specified level.
Observe the legal requirements. 4 Engine
oil level
Consult
workshop The engine oil level has dropped to a critical level or the
measuring system is malfunctioning.
33
X Check the engine oil level ( Ypage 176).
If the engine oil level is OK:
X Visit a qualified specialist workshop.
If the engine oil level is not OK:
X Top up the engine oil.
X If the warning message disappears: consult a qualified spe-
cialist workshop.
X If the warning message does not disappear: keep the vehi-
cle at a standstill and notify a qualified specialist workshop. 4 Engine
oil level
cannot be
measured
The measuring system is malfunctioning
33
.
X Visit a qualified specialist workshop. h Tyre pres‐
sure Cau‐
tion,
tyre
defect
G
Risk of accident
The tyre pressure in one or more tyres has dropped suddenly.
The affected wheel is highlighted in the tyre pressure display
of the tyre pressure monitor*.
X Stop the vehicle without making any sudden steering or
braking manoeuvres. Pay attention to traffic conditions as
you do so.
X Repair the faulty tyre or replace the wheel ( Ypage 262). 33
Only for certain countries. Display
messages
229Practical advice
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Display messages
Possible causes/consequences and
X
X Solutions h Tyre pres‐
sure
Check
tyres
G
Risk of accident
The tyre pressure in one or more tyres has dropped signifi-
cantly. The affected wheel is highlighted in the tyre pressure
display of the tyre pressure monitor*.
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 If necessary, repair any defective tyres or change the wheel
(Y page 262).
X Check the tyre pressure. If necessary, correct the tyre pres-
sure (Y page 180).
The display message will disappear automatically after you
have been driving for a few minutes with the corrected tyre
pressure. h Please
correct
tyre pres‐
sure(s)
Vehicles with tyre pressure monitor*: the pressure is insuffi-
cient in at least one of the tyres or the pressure difference
between the individual tyres is too great.
X
Check the tyre pressures at the next opportunity. If neces-
sary, correct the tyre pressure (Y page 180).+ Change
key bat‐
teries
The KEYLESS GO* key batteries are discharged.
X
Change the batteries ( Ypage 253). + Key does
not
belong to
vehicle You have put the wrong key in the ignition lock.
X
Use the correct key. 230
Display
messagesPractical advice
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Problem
Possible causes/consequences and
X
X Solutions J
The red brake
system warning
lamp comes on
while the engine
is running. A
warning tone
also sounds. G
Risk of accident
There is insufficient brake fluid in the fluid reservoir.
X Pull over and stop the vehicle safely as soon as possible, paying
attention to road and traffic conditions. Do not continue driving
under any circumstances.
X Consult a qualified specialist workshop.
X Observe the additional messages in the multi-function display
(Y page 211).
Do not top up the brake fluid. This will not rectify the fault. ;
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. Vehicles with a diesel engine: the fuel tank has been run dry.
X
Start the engine three to four times after refuelling.
Emergency running mode is cancelled. The vehicle need not be
checked. ;
The yellow
engine diagnos-
tics warning
lamp lights up
while the engine
is running. There may be a fault, for example:
R
in the engine management
R in the ignition system
R in the exhaust system
R in the ignition system (for vehicles with petrol engines)
The emission limit values may be exceeded and the engine can
run in emergency mode.
X Have the vehicle checked as soon as possible at a qualified
specialist workshop. h
The yellow tyre
pressure moni-
tor* warning
lamp is on. G
Risk of accident
The tyre pressure monitor* has detected a sudden or significant
pressure loss in at least one of the tyres.
X Stop the vehicle without making any sudden steering or braking
manoeuvres. Pay attention to traffic conditions as you do so.
X Observe the additional messages in the multi-function display
(Y page 211).
The warning light will go out after the flat tyre has been changed
and you have been driving for a few minutes. Troubleshooting
237Practical advice
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X
Vehicles with the AIRMATIC package*
or Off-Road Pro engineering package*:
remove the Start/Stop button from the
ignition lock.
X Get out of the vehicle.
X Close the driver’s door.
X Place the warning triangle (Y page 208) at
a suitable distance. Observe legal require-
ments.
i Only operate the electric air pump using
the socket in the footwell of the second row
of seats (Y page 163), even if the ignition
is turned off.
An emergency cut-off ensures that the on-
board voltage does not drop too low. If the
on-board voltage is too low, power to the
sockets is automatically cut-off. This
ensures that there is sufficient power to
start the engine. Using the TIREFIT kit
You can use the TIREFIT kit to seal small
punctures, particularly those in the tyre tread.
You can use TIREFIT at outside temperatures
down to -20 †. G
Risk of accident
In the following cases your safety is especially
endangered, as tyre sealant is insufficient if:
R there are cuts or punctures in the tyre
greater than 4 mm.
R the wheel rim is damaged.
R you have driven at very low tyre pressures
or on a flat tyre.
Do not drive any further. Consult a qualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out
the work required.
Mercedes-Benz recommends that you use a
Mercedes-Benz Service Centre for this pur-
pose. In particular, work relevant to safety or
on safety-related systems must be carried out
at a qualified specialist workshop. X
Do not remove any foreign objects which
have penetrated the tyre, e.g. screws or
nails.
X Remove the TIREFIT kit, the accompanying
"max. 80 km/h" sticker and the electric air
pump from the stowage well underneath
the luggage compartment floor
(Y page 209). X
Affix part :of the sticker within the driv-
er's field of vision.
X Affix part ;of the sticker near the valve
on the wheel with the defective tyre. G
Risk of injury
TIREFIT must not come into contact with your
skin, eyes or clothing.
R If TIREFIT comes into contact with your
eyes or skin, immediately rinse thoroughly
with clean water.
R Change out of clothing which has come into
contact with TIREFIT immediately.
R If an allergic reaction occurs, consult a doc-
tor immediately.
Keep TIREFIT away from children.
R If TIREFIT is swallowed, immediately rinse
your mouth out thoroughly and drink plenty
of water.
R Do not induce vomiting. Consult a doctor
immediately.
R Do not inhale TIREFIT fumes. Flat tyre
263Practical advice
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i
If TIREFIT leaks out, allow it to dry. It can
then be removed like a layer of film.
If you get TIREFIT on your clothing, have it
cleaned as soon as possible with perchloro-
ethylene. G
Risk of injury
Comply with the manufacturer's safety
instructions shown on the sticker on the elec-
tric air pump.
Your vehicle may be equipped with one of two
different air pumps. Version 1 can be identi-
fied by the flap, behind which the hose with
the pressure gauge and cable are located;
version 2 has a pressure release button in the
air hose of the electric air pump.
Version 1 X
Open flap ;on the electric air pump.
X Pull connector Awith cable and air pump
hose Bout of the housing.
X Screw air pump hose Bonto flange Cof
TIREFIT sealant filler bottle :.
X Place TIREFIT sealant filler bottle :head
downwards into recess =of the electric
air pump. X
Remove the cap from valve Eon the faulty
tyre. X
Make sure pressure release screw Fon
pressure gauge Gis fully closed.
X Screw filler hose Donto valve E.
X Insert connector Ainto the socket in the
footwell of the second row of seats
(Y page 163).
! The socket/cigarette lighter* in the front
centre console is not designed for operat-
ing the electric air pump.
X Vehicles without KEYLESS GO*: turn the
key to position 2(Y page 63) in the ignition
lock.
X Vehicles with KEYLESS GO*: press the
Start/Stop button twice (position
2 (Y page 63)). 264
Flat tyrePractical advice
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X
Press on/off switch ?on the electric air
pump to I.
The electric air pump is switched on. The
tyre is inflated.
i First, TIREFIT is pumped into the tyre. The
pressure can briefly rise to around 5 bar.
Do not switch off the electric pump dur-
ing this phase.
X Let the electric pump run for five minutes.
The tyre should then have a pressure of at
least 1.8 bar.
! Do not operate the electric air pump for
longer than eight minutes at a time without
a break. It may otherwise overheat.
The air pump can be operated again once
it has cooled down.
If a pressure of 1.8 bar is not reached
after five minutes:
X Switch off and disconnect the electric air
pump and drive the vehicle forwards or
backwards approximately 10 m.
This distributes the TIREFIT more evenly.
X Pump up the tyre again. G
Risk of accident
If a pressure of 1.8 bar is not achieved after
five minutes, the tyre is too badly damaged.
Do not drive any further. Consult a qualified
specialist workshop which has the necessary
specialist knowledge and tools to carry out
the work required. Mercedes-Benz recom-
mends that you use a Mercedes-Benz Service
Centre for this purpose. In particular, work
relevant to safety or on safety-related sys-
tems must be carried out at a qualified spe-
cialist workshop.
When a tyre pressure of at least 1.8 bar
is reached:
X Press on/off switch ?on the electric air
pump to 0.
The electric air pump is switched off.
X Remove the TIREFIT kit from the wheel. !
After use, excess TIREFIT may run out of
the filler hose. This may cause stains.
Therefore, place the filler hose in the plastic
which contained the TIREFIT kit.
X Stow away the TIREFIT kit, the electric air
pump and the warning triangle.
X Pull away immediately.
X Stop after driving for approximately ten
minutes and check the tyre pressure with
the electric air pump. G
Risk of accident
If the tyre pressure is now lower than 1.3 bar,
the tyre is too badly damaged. Do not drive
any further. Consult a qualified specialist
workshop which has the necessary specialist
knowledge and tools to carry out the work
required. Mercedes-Benz recommends that
you use a Mercedes-Benz Service Centre for
this purpose. In particular, work relevant to
safety or on safety-related systems must be
carried out at a qualified specialist workshop.
X If the tyre pressure is still at least 1.3 bar,
correct it (see fuel filler flap for values).
To increase the tyre pressure: switch on
the electric air pump.
To reduce the tyre pressure: open pres-
sure release screw Fon pressure
gauge G.
X Drive to the nearest workshop and have the
tyre changed there.
X Have the TIREFIT kit replaced as soon as
possible at a qualified specialist workshop,
e.g. at a Mercedes-Benz Service Centre. G
Risk of accident
Do not exceed the maximum speed of
80 km/h.
The "max. 80 km/h" label must be affixed in
the driver's field of vision.
The vehicle's handling characteristics may be
affected. Flat tyre
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H
Environmental note
Have the used TIREFIT kit disposed of profes-
sionally, e.g. at a Mercedes-Benz Service
Centre.
X Have the TIREFIT kit replaced every four
years at a qualified specialist workshop,
e.g. a Mercedes-Benz Service Centre.
Version 2 X
Pull connector ?with cable and air pump
hose Aout of the housing.
X Screw air pump hose Aonto flange Bof
TIREFIT sealant filler bottle :.
X Place TIREFIT sealant filler bottle :head
downwards into recess ;of the electric
air pump. X
Remove the cap from valve Con the faulty
tyre.
X Screw filler hose Donto valve C. X
Insert connector ?into the socket in the
footwell of the second row of seats
(Y page 163).
! The socket/cigarette lighter* in the front
centre console is not designed for operat-
ing the electric air pump.
X Vehicles without KEYLESS GO*: turn the
key to position 2(Y page 63 )in the ignition
lock.
X Vehicles with KEYLESS GO*: press the
Start/Stop button twice (position
2 (Y page 63)).
X Press on/off switch =on the electric air
pump to I.
The electric air pump is switched on. The
tyre is inflated.
i First, TIREFIT is pumped into the tyre. The
pressure can briefly rise to around 5 bar.
Do not switch off the electric pump dur-
ing this phase.
X Let the electric pump run for five minutes.
The tyre should then have a pressure of at
least 1.8 bar.
! Do not operate the electric air pump for
longer than eight minutes at a time without
a break. It may otherwise overheat.
The air pump can be operated again once
it has cooled down.
If a pressure of 1.8 bar is not reached
after five minutes:
X Switch off and disconnect the electric air
pump and drive the vehicle forwards or
backwards approximately 10 m.
This distributes the TIREFIT more evenly.
X Remove TIREFIT sealant filler bottle :
from the electric pump.
X Pump up the tyre again. G
Risk of accident
If a pressure of 1.8 bar is not achieved after
five minutes, the tyre is too badly damaged. 266
Flat tyrePractical advice
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