Vehicle care157Notice
In countries where the tyre pressure
monitoring system is legally
required, the use of wheels without
pressure sensors will invalidate the
vehicle type approval.
Low tyre pressure condition
A detected low tyre pressure
condition is indicated by illumination
of control indicator w 3 85 together
with a warning chime. In vehicles with Multifunction version of the Driver
Information Centre, a corresponding message is also displayed.
If w illuminates, stop as soon as
possible and inflate the tyres as
recommended 3 185.
After inflating, driving may be
required to update the tyre pressure
values in the system. During this time
w may illuminate.
If w illuminates at lower temperatures
and extinguishes after some driving,
this could be an indicator for
approaching a low tyre pressure
condition. Check tyre pressure of all
four tyres.
If the tyre pressure must be reduced
or increased, switch off ignition.
Only mount wheels with pressure
sensors, otherwise the tyre pressure
value cannot be recognised by the
system and w flashes for several
seconds then illuminates
continuously. In vehicles with
Multifunction version of the Driver Information Centre, a corresponding
message is also displayed.A spare wheel or temporary spare
wheel is not equipped with pressure
sensors. TPMS is not operational for
these wheels. For the further three wheels, TPMS remains operational.
Spare wheel 3 163, Wheel changing
3 161.
Control indicator w and (depending
on version) a corresponding message appears at each ignition cycle until
the tyres are inflated to the correct
tyre pressure.
Driver Information Centre 3 88.
Relearn function
After changing wheels, TPMS needs
to recalculate. The relearn process
takes up to 20 minutes of driving with
a minimum speed of 12 mph.
If problems occur during the relearn
process, control indicator w flashes
for several seconds then illuminates
continuously and (depending on
version) a warning message is
displayed in the Driver Information Centre.
Driver Information Centre 3 88.
158Vehicle careGeneral information
The use of tyre chains or
commercially available liquid tyre
repair kits can impair the function of
the system. Factory-approved tyre
repair kits can be used.
Tyre repair kit 3 159, Tyre chains
3 159.
Operating electronic devices or being
close to facilities using similar wave
frequencies could disrupt the tyre
pressure monitoring system.
Each time the tyres are replaced, TPMS sensors must be dismounted
and serviced by a workshop.
Tread depth Check tread depth at regular
intervals.
Tyres should be replaced for safety
reasons at a tread depth of 2-3 mm
(4 mm for winter tyres).
For safety reasons, it is
recommended that the tread depth of
the tyres on one axle should not vary
by more than 2 mm.
The legally permissible minimum
tread depth (1.6 mm) has been
reached when the tread has worn
down as far as one of the tread wear
indicators (TWI). Their position is
indicated by markings on the
sidewall.
If there is more wear at the front than
the rear, swap round front wheels and rear wheels periodically. Ensure that
the direction of rotation of the wheels
is the same as before.
Tyres age, even if they are not used.
We recommend tyre replacement
every six years.
Changing tyre and wheel
size
If tyres of a different size than those
fitted at the factory are used, it may be necessary to reprogramme the
speedometer as well as the nominal
tyre pressure and make other vehicle
modifications.
After converting to a different tyre
size, have the label with tyre
pressures replaced.9 Warning
Use of unsuitable tyres or wheels
may lead to accidents and will
invalidate the vehicle type
approval.
Wheel covers
Wheel covers and tyres that are
factory approved for the respective
vehicle and comply with all of the
relevant wheel and tyre combination requirements must be used.
If the wheel covers and tyres used are
not factory approved, the tyres must
not have a rim protection ridge.
Vehicle care159Wheel covers must not impair brake
cooling.9 Warning
Use of unsuitable tyres or wheel
covers could lead to sudden
pressure loss and thereby
accidents.
Tyre chains
Tyre chains are only permitted on the
front wheels.
Always use fine mesh chains that add no more than 10 mm to the tyre tread
and the inboard sides (including chain lock).
Do not exceed 30 mph when tyre
chains are fitted.9 Warning
Damage may lead to tyre blowout.
Tyre repair kit
Minor damage to the tyre tread can be
repaired with the tyre repair kit.
Do not remove foreign bodies from
the tyres.
Tyre damage exceeding 4 mm or that is at tyre's sidewall cannot be repairedwith the tyre repair kit.
9 Warning
Do not drive faster than 50 mph.
Do not use for a lengthy period.
Steering and handling may be
affected.
If you have a flat tyre:
Apply the parking brake and engage
first or reverse gear.
The tyre repair kit may be located
under the front seat, in the glovebox,
or on the right side of the load
compartment behind a cover.
1. Take the tyre repair kit from the vehicle.
2. Remove the compressor.
3. Set the compressor upright near the tyre.
4. Unscrew valve cap from defective
tyre.
Vehicle care161
If tyre pressure is more than
1.8 bar , set it to the correct value.
Repeat the procedure until there
is no more loss of pressure.
If the tyre pressure has fallen
below 1.8 bar, the vehicle must
not be used. Seek the assistance
of a workshop.
15. Stow away tyre repair kit in load compartment.
Notice
The driving characteristics of the
repaired tyre are severely affected,
therefore have this tyre replaced.
If unusual noise is heard or the
compressor becomes hot, turn
compressor off and allow to cool.
Note the expiry date of the kit. After
this date its sealing capability is no
longer guaranteed. Pay attention to
storage information on sealant
bottle.
Replace the used sealant bottle.
Dispose of the bottle as prescribed
by applicable laws.
The compressor and sealant can be used from approx. -20 °C.
Replacing the sealant canister
To replace the sealant canister: 1. Disconnect the compressor air hose.2. Turn the canister anticlockwise to lift it out.
3. Insert the new canister and turn it clockwise.
4. Connect the compressor air hose to the canister and fit the flexible
filler tube into its allocated space.
Wheel changing
Some vehicles are equipped with a
tyre repair kit instead of a spare wheel 3 159.
Make the following preparations and
observe the following information:
● Park the vehicle on a level, firm and non-skid surface. The front
wheels must be in the straight- ahead position.
● Apply the parking brake and engage first or reverse gear.
● Remove the spare wheel 3 163.
● Never change more than one wheel at once.
● Use the jack only to change wheels in case of puncture, not
for seasonal winter or summer
tyre change.
162Vehicle care● The jack is maintenance-free.● If the ground on which the vehicle
is standing is soft, a solid board
(max. 1 cm thick) should be
placed under the jack.
● No people or animals may be in the vehicle when it is jacked-up.
● Never crawl under a jacked-up vehicle.
● Do not start the vehicle when it is
raised on the jack.
● Clean wheel nuts and thread with
a clean cloth before mounting the
wheel.9 Warning
Do not grease wheel bolt, wheel
nut and wheel nut cone.
1. Disengage wheel nut caps with a screwdriver and remove. Pull off
the wheel cover using a suitable
tool.
2. Attach wheel wrench securely and loosen each wheel nut by halfa turn.3. Vehicle jacking points are located
at the front and rear.
4. Set the jack to the necessary height. Position it directly below
Vehicle care163the jacking point in a manner thatprevents it from slipping.
With the jack correctly aligned,
rotate until wheel is clear of the
ground.
5. Unscrew the wheel nuts. 6. Change the wheel. Spare wheel 3 163.
7. Screw on the wheel nuts.
8. Lower vehicle.
9. Install the wheel wrench ensuring that it locates securely and tighten
each nut in a crosswise
sequence. Tightening torque is
85 Nm (steel wheel) or 120 Nm
(alloy wheel).
10. Align the valve hole in the wheel cover with the tyre valve before
installing.
Install wheel nut caps.
11. Stow the replaced wheel 3 163
and the vehicle tools 3 154.
12. Check the tyre pressure of the installed tyre and the wheel nut
torque as soon as possible.
Have the defective tyre renewed or
repaired as soon as possible.
Spare wheel Some vehicles are equipped with atyre repair kit 3 159 instead of a spare
wheel.
If mounting a spare wheel which is
different from the other wheels, this
wheel might be classified as a
temporary spare wheel and the
corresponding speed limits apply,
even though no label indicates this.
Seek the assistance of a workshop to
check the applicable speed limit.Caution
The use of a spare wheel that is smaller than the other wheels or in combination with winter tyres
could affect driveability. Have the defective tyre replaced as soon as
possible.
Depending on model variant, the
spare wheel is stored beneath the
floor or in the load compartment.
1. Attach the extension bar 2 to the
wheel wrench 1. Vehicle tools
3 154.
164Vehicle care
2. Insert the wheel wrench into theaperture in the load compartment
floor.
3. Rotate the wheel wrench to lower the spare wheel to the floor.
4. Withdraw spare wheel from beneath the vehicle.
5. Unscrew knob 2 and release
cable attachment 1 from spare
wheel.
6. Change the wheel.
7. Position the replaced wheel at the
rear of the vehicle with the outside of the wheel facing downwards.
8. Pass the retainer 1 through the
hole in the rim, inserting the
locating pin into one of the bolt
holes and secure with knob 2.
9. Insert the wheel wrench into the aperture in the load compartment
floor and rotate to fully raise the
spare wheel.
Have the defective tyre renewed or
repaired as soon as possible.
CNG vehicles Vehicles with CNG; the spare wheel
is located in the load compartment.
Vehicle care165
1. Unscrew two bolts using thewheel wrench and remove spare
wheel from bracket. Vehicle tools
3 154.
2. Change the wheel.
3. Position the replaced spare wheel
onto the bracket ensuring correct
alignment of the locating pin.
4. Secure spare wheel by tightening two bolts using the wheel wrench.
Have the defective tyre renewed or
repaired as soon as possible.
Directional tyres Fit directional tyres such that they rollin the direction of travel. The rolling
direction is indicated by a symbol
(e.g. an arrow) on the sidewall.
The following applies to tyres fitted
opposing the rolling direction:
● Driveability may be affected. Have the defective tyre renewed
or repaired as soon as possible
and fit it instead of the spare
wheel.
● Drive particularly carefully on wet
and snow-covered road
surfaces.Jump starting
Do not start with quick charger.
A vehicle with a discharged battery
can be started using jump leads and
the battery of another vehicle.9 Warning
Be extremely careful when starting
with jump leads. Any deviation
from the following instructions can
lead to injuries or damage caused
by battery explosion or damage to the electrical systems of both
vehicles.
9 Warning
Avoid contact of the vehicle
battery with eyes, skin, fabrics and painted surfaces. The fluid
contains sulphuric acid which can
cause injuries and damage in the
event of direct contact.
● Never expose the vehicle battery
to naked flames or sparks.