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Vehicle care151
■ Do not start the vehicle when it israised 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
the jacking point in a manner that prevents it from slipping.
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152Vehicle care
With the jack correctly aligned,
rotate until wheel is clear of the
ground.
5. Unscrew the wheel nuts. 6. Change the wheel. Spare wheel 3 152.
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 3 152
and the vehicle tools 3 143.
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 a tyre repair kit 3 148 instead of a spare
wheel.
The spare wheel can be classified as a temporary spare wheel depending
on the size compared to the other
mounted wheels and country
regulations.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
3 143.
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Vehicle care153
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.
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154Vehicle care
Have the defective tyre renewed orrepaired as soon as possible.
CNG vehicles Vehicles with CNG; the spare wheel
is located in the load compartment.
1. Unscrew two bolts using the wheel wrench and remove spare
wheel from bracket. Vehicle tools
3 143.
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 roll in 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.
■ Drive particularly carefully on wet and snow-covered road surfaces.
Page 157 of 183

Vehicle care155Jump 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 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 battery to naked flames or sparks.
■ A discharged battery can alreadyfreeze at a temperature of 0 °C.
Defrost the frozen battery before
connecting jump leads.
■ Wear eye protection and protective
clothing when handling a battery.
■ Use a booster battery with the same voltage (12 Volts). Its
capacity (Ah) must not be much less than that of the discharged
battery.
■ Use jump leads with insulated terminals and a cross section of at
least 16 mm 2
(25 mm 2
for diesel
engines).
■ Do not disconnect the discharged battery from the vehicle.
■ Switch off all unnecessary electrical
consumers.
■ Do not lean over the battery during jump starting.
■ Do not allow the terminals of one lead to touch those of the other
lead.■ The vehicles must not come into contact with each other during the
jump starting process.
■ Apply the parking brake, transmission in neutral.
Lead connection order:
1. Connect the red lead to the positive terminal of the booster
battery.
2. Connect the other end of the red lead to the positive terminal of the
discharged battery.
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156Vehicle care
3. Connect the black lead to thenegative terminal of the booster
battery.
4. Connect the other end of the black
lead to a vehicle grounding point,
such as the engine block or an
engine mounting bolt. Connect as far away from the discharged
battery as possible, however at
least 60 cm.
Route the leads so that they cannot
catch on rotating parts in the engine
compartment.
To start the engine: 1. Start the engine of the vehicle providing the jump.
2. After 5 minutes, start the other engine. Start attempts should be
made for no longer than
15 seconds at an interval of 1 minute.
3. Allow both engines to idle for approx. 3 minutes with the leads
connected.4. Switch on electrical consumers (e.g. headlights, heated rear
window) of the vehicle receiving
the jump start.
5. Reverse above sequence exactly when removing leads.Towing
Towing the vehicle
Release the cap by carefully lifting
with a screwdriver. To prevent
damage, it is recommended to place
a cloth between the screwdriver and
the frame.
The towing eye is stowed with the vehicle tools 3 143.
Screw in the towing eye as far as it will
go until it stops in a horizontal
position.
Attach a tow rope – or better still a tow
rod – to the towing eye.
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Vehicle care157Caution
The towing eye must only be usedfor towing and not for recovering
the vehicle.
Switch on ignition to release steering
wheel lock and to permit operation of
brake lights, horn and windscreen
wiper.
Transmission in neutral.
Notice
If neutral cannot be selected on
vehicles with manual transmission
automated (MTA), the vehicle must
only be towed with the drive wheels
raised off the ground.
Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
When the engine is not running,
considerably more force is needed to
brake and steer.
To prevent the entry of exhaust gases from the towing vehicle, switch on the
air recirculation and close the
windows.
Seek the assistance of a workshop.
After towing, unscrew the towing eye
and replace the cap.
Towing another vehicle
Insert a screwdriver in the slot at the
side of the cap. Release the cap by
carefully levering the screwdriver. To
prevent damage it is recommended to place a cloth between the screwdriver
and the frame.
The towing eye is stowed with the vehicle tools 3 143.
Screw in the towing eye as far as it will
go until it stops in a horizontal
position.
Attach a tow rope – or even better a tow bar – to the towing eye.
The towing eye must only be used for
towing and not for recovering a
vehicle.Caution
Drive slowly. Do not drive jerkily.
Excessive tractive force can
damage the vehicle.
After towing, unscrew the towing eye.
Insert cap.
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158Vehicle careAppearance care
Exterior care Locks
The locks are lubricated at the factory using a high quality lock cylinder
grease. Use de-icing agent only when absolutely necessary, as this has adegreasing effect and impairs lockfunction. After using de-icing agent,
have the locks regreased by a
workshop.
Washing
The paintwork of your vehicle is
exposed to environmental influences. Wash and wax your vehicle regularly.
When using automatic vehicle
washes, select a programme that
includes waxing.
Bird droppings, dead insects, resin,
pollen and the like should be cleaned
off immediately, as they contain
aggressive constituents which can
cause paint damage.If using a vehicle wash, comply with
the vehicle wash manufacturer's
instructions. The windscreen wiper and rear window wiper must be
switched off. Remove antenna and
external accessories such as roof
racks etc.
If you wash your vehicle by hand,
make sure that the insides of the
wheel housings are also thoroughly
rinsed out.
Clean edges and folds on opened
doors and the bonnet as well as the
areas they cover.Caution
Always use a cleaning agent with
a pH value of 4 to 9.
Do not use cleaning agents on hot surfaces.
Have the door hinges of all doors
greased by a workshop.
Do not clean the engine compartment with a steam-jet or high-pressure jet
cleaner.
Thoroughly rinse and leather-off the vehicle. Rinse leather frequently. Use
separate leathers for painted and
glass surfaces: remnants of wax on
the windows will impair vision.
Exterior lights
Headlight and other light covers are
made of plastic. Do not use any
abrasive or caustic agents, do not use an ice scraper, and do not clean them
dry.
Polishing and waxing Wax the vehicle regularly (at the
latest when water no longer beads).
Otherwise, the paintwork will dry out.
Polishing is necessary only if the paint
has become dull or if solid deposits
have become attached to it.
Paintwork polish with silicone forms a
protective film, making waxing
unnecessary.
Plastic body parts must not be treated with wax or polishing agents.