2007 MERCEDES-BENZ M-CLASS tire pressure

445 Practical hints
What to do if …
Display message
Possible cause/consequence
Possible solution
Tire pressure monitor
inoperative
The TPMS or Advanced TPMS* is
malfunctioning.

Have the TPMS or Advanced TPMS* checked by an
authorized Mercedes-Benz Light Truck Center.
Tire pressure monitor
inoperative
No wheel sensors
There are wheels without appropriate wheel
sensors mounted (e.g. winter tires).

Have the TPMS or Advanced TPMS* checked by an
authorized Mercedes-Benz Light Truck Center.

Have the wheel sensors installed by an authorized
Mercedes-Benz Light Truck Center.
Tire pressure monitor
Wheel sensor missing
One or more sensors defect (e.g. battery is
empty).
One or more wheels without appropriate
wheel sensors mounted (e.g. spare tire).

Have the TPMS or Advanced TPMS* checked by an
authorized Mercedes-Benz Light Truck Center.

Have the wheel sensors installed by an authorized
Mercedes-Benz Light Truck Center.
Vehicles with Advanced TPMS*:
The tire pressure for the respective tire is shown in
the multifunction display.
Tire pressure monitor
currently
unavailable
The TPMS or Advanced TPMS* is unable to
monitor the tire pressure due to

a nearby radio interference source.


excessive wheel sensor temperatures.

As soon as the causes of the malfunction have been
removed, the TPMS or Advanced TPMS* automati-
cally becomes active again after a few minutes driv-
ing.
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465 Practical hints
What to do if …
Display symbol
Display messages
Possible cause/consequence
Possible solution
H
Tire pressure
Check tires
The pressure is too low in one or
more tires.

Check and correct tire inflation pressure as
required.
Tire pressure
Caution - tire defect
One or more tires are deflating.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.

If necessary, change the wheel.
Caution - tire defect
Vehicles with Advanced TPMS*:
One or more tires are deflating.
The respective tire is shown in the
multifunction display.

Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers.

If necessary, change the wheel.
Warning!
G
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.
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466 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
H
Tire pressure
Check tires
The tire pressure in one or more tires is
already below the minimum value.

Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers.

Check and adjust tire pressure as
required.

If necessary, change the wheel.
Check tires
Vehicles with Advanced TPMS*:
The tire pressure in one or more tires is
already below the minimum value.
The respective tire is shown in the
multifunction display.

Carefully bring the vehicle to a halt,
avoiding abrupt steering and braking
maneuvers.

Check and adjust tire pressure as
required.

If necessary, change the wheel.
Warning!
G
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. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
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473 Practical hints
Where will I find ...?
Minispare wheel (except ML 63 AMG)The Minispare wheel is located underneath
the cargo compartment floor
(
page 469).
Removing Minispare wheel
1Minispare wheel
2Towing eye bolt
3Alignment bolt
4Retaining screw
5Wheel bolt wrenchFor access the minispare wheel, see “Vehi-
cle tool kit” (
page 469).

Loosen retaining screw2 by turning it
counterclockwise.

Remove Minispare wheel1.
Warning!
G
The dimensions of the Minispare wheel are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a Minispare wheel
mounted. Adapt your driving style accord-
ingly.
The Minispare wheel is for temporary use
only. When driving with a Minispare wheel
mounted, ensure proper tire inflation
pressure and do not exceed a vehicle speed
of 50 mph (80 km/h).
Drive to the nearest Mercedes-Benz Light
Truck Center as soon as possible to have the
Minispare wheel replaced with a regular
road wheel.
Never operate the vehicle with more than
one spare wheel mounted.
Do not switch off the ESP
® when a
Minispare wheel is mounted.
i
For information on how to mount the
Minispare wheel, see “Mounting the spare
wheel” (
page 498).
i
Remove Minispare wheel to gain access to
remaining tools in the vehicle tool kit
(
page 469).
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474 Practical hintsWhere will I find ...?Collapsible tire (ML 63 AMG only)The collapsible tire is located underneath
the cargo compartment floor
(
page 469).
Removing the collapsible tire
1Electric air pump
2Collapsible tire
3Vehicle tool kit storage well casing
4Alignment bolt
5Towing eye bolt
6Wheel bolt wrenchFor access the collapsible tire, see “Vehi-
cle tool kit” (
page 469).

Remove the vehicle tool kit storage
well casing3.
7Retaining screw

Loosen retaining screw7 by turning it
counterclockwise.

Remove collapsible tire2.
Warning!
G
The dimensions of the collapsible tire are
different from those of the road wheels. As
a result, the vehicle handling characteristics
change when driving with a collapsible tire
mounted. Adapt your driving style accord-
ingly.
The collapsible tire is for temporary use
only. When driving with a collapsible tire
mounted, ensure proper tire inflation
pressure and do not exceed a vehicle speed
of 50 mph (80 km/h).
Drive to the nearest Mercedes-Benz Light
Truck Center as soon as possible to have the
collapsible tire replaced with a regular road
wheel.
Never operate the vehicle with more than
one collapsible tire mounted.
Do not switch off the ESP
® when a
collapsible tire is mounted.
i
For information on how to mount the
collapsible tire, see “Mounting the spare wheel”
(
page 498).
i
Remove collapsible tire to gain access to
remaining tools in the vehicle tool kit
(
page 469).
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497 Practical hints
Flat tire
Flat tire
Preparing the vehicle
Park the vehicle in a safe distance from
moving traffic on a hard, flat surface
when possible.

Turn on the hazard warning flasher
(page 142).

Turn the steering wheel so that the
front wheels are in a straight-ahead
position.

Set the parking brake (
page 57).

Set the automatic transmission to park
positionP (
page 187).

Turn off the engine (
page 39).

Remove the SmartKey from the starter
switch.
Vehicles with KEYLESS-GO*:
Turn off the engine by pressing the
KEYLESS-GO* button once
(page 67).

Open the driver’s door (this puts
the starter switch in position0,
same as with the SmartKey re-
moved from the starter switch). The
driver’s door then can be closed
again.

Have any passenger exit the vehicle at
a safe distance from the roadway.
Warning!
G
The dimensions of the spare wheel
(Minispare wheel or collapsible tire) are dif-
ferent from those of the road wheels. As a
result, the vehicle handling characteristics
change when driving with a spare wheel
mounted. Adapt your driving style accord-
ingly.
The spare wheel is for temporary use only.
When driving with a spare wheel mounted,
ensure proper tire pressure and do not ex-
ceed a vehicle speed of 50 mph (80 km/h).
Drive to the nearest Mercedes-Benz Light
Truck Center as soon as possible to have the
spare wheel replaced with a regular road
wheel.
Never operate the vehicle with more than
one spare wheel mounted.
Do not switch off the ESP
® when a
Minispare wheel is mounted.
Warning!
G
Vehicles with air suspension package*:
Do not open or close any doors or the
tailgate while mounting a spare wheel. The
vehicle could rise or lower to a previously
selected level. You or others could be
injured as a result.
i
Open door only when conditions are safe to
do so.

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502 Practical hintsFlat tire
Inflating the collapsible tire
(ML 63 AMG only)
Take the electric air pump out of the
cargo compartment (
page 474).
Electric air pump1Flap
2On/off switch
3Electrical plug
4Air hose with pressure gauge and vent
screw
5Union nut
Open flap1 on electric air pump.

Pull out electrical plug3 and air hose
with pressure gauge4.

Remove the valve cap from the
collapsible tire valve.
Warning!
G
Only use genuine equipment
Mercedes-Benz wheel bolts. Other wheel
bolts may come loose.
Do not tighten the wheel bolts when the
vehicle is raised. Otherwise the vehicle
could fall off the jack.
Warning!
G
Vehicles with collapsible tire
(ML 63 AMG only):
Inflate collapsible tire only after the wheel is
properly mounted.
Inflate the collapsible tire using the electric
pump (
page 502) before
lowering the
vehicle.
Warning!
G
Observe instructions on air pump label.!
Do not lower the vehicle before inflating the
collapsible tire. Otherwise the rim may be dam-
aged.
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503 Practical hints
Flat tire

Screw union nut5 onto the collaps-
ible tire valve.

Insert electrical plug3 into a power
outlet (
page 302).

Turn the SmartKey in the starter switch
to position1.
or

Vehicles with KEYLESS-GO*:
Press the KEYLESS-GO start/stop
button once without depressing the
brake pedal.

Press I on electric air pump switch2.
The electric air pump should now
switch on and inflate the collapsible
tire.

Inflate the collapsible tire to the recom-
mended tire inflation pressure given in
the “Technical data” section
(page 536).
This takes about 5 minutes for the col-
lapsible tire.

Press 0 on electric air pump switch2.

Turn the SmartKey in the starter switch
to position0.
or

Vehicles with KEYLESS-GO*:
Press the KEYLESS-GO start/stop
button twice without depressing the
brake pedal.

If the tire inflation pressure is above
the recommended tire inflation pres-
sure given in this Operator’s Manual,
release excess tire inflation pressure
using the vent screw.
!
The cigarette lighter* (
page 300) or the
power outlet in the front center console
(
page 302) is not designed for use with the
electric air pump. Use the power outlet in the
rear center console or in the cargo compartment
(page 303) for electric air pump operation.
Warning!
G
Air hose4 and union nut5 can become
hot during inflation. Exercise proper caution
to avoid burning yourself when using the
equipment.!
Do not operate the electric air pump longer
than 8 minutes without interruption. Otherwise it
may overheat.
You may operate the electric air pump again
after it has cooled off.
!
Please compare the recommended tire
inflation pressure for your vehicle with the tire
inflation pressure on the yellow label located on
the spare wheel rim.
If the tire inflation pressure on the yellow label
on the spare wheel rim differs from the values
given in this Operator’s Manual, inflate the tire to
the recommended tire inflation pressure given
on the yellow label on the spare wheel rim.

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