Page 241 of 281

Vehicle care239●If necessary, place a chock under
the wheel diagonally opposite the wheel to be changed.
● Apply the parking brake and engage first gear, reverse gear or
P .
● Remove the spare wheel 3 237.
● 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.
● 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.
● Take heavy objects out of the vehicle before jacking up.
● 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.● Before screwing in the wheel bolts, clean them.9Warning
Do not grease wheel bolts.
9Warning
Ensure to use always the correct
wheel bolts if changing the
wheels. When installing the spare
wheel, the bolts for alloy wheels can also be used.
● Note that the spare wheel is secured by the conical contact ofeach bolt if the wheel bolts for the
alloy wheels are used. In this
case, the washers do not come
into contact with the spare wheel.
1. Disengage wheel bolt caps with the wheel bolt cover remover.
3 228
Steel wheels with cover: Pull off
the wheel cover.
Alloy wheels: Disengage wheel
bolt caps with the wheel bolt cover remover.
2. Fold out the wheel wrench and install ensuring that it locates
Page 242 of 281
240Vehicle caresecurely and loosen each wheel
nut by half a turn.
The wheels might be protected by
locking wheel nuts. To loosen
these specific nuts first attach the
adapter onto the head of the nut
before installing the wheel
wrench. The adapter is located in
the tool box. 3 228
3. Ensure the jack is correctly
positioned under the relevant
vehicle jacking point.
4. Set the jack to the necessary height. Position it directly below
the jacking point in a manner that
prevents it from slipping.
Ensure that the edge of the body
fits into the notch of the jack.
Attach wheel wrench and with the
jack correctly aligned rotate wheel wrench until wheel is clear of the
ground.
5. Unscrew the wheel nuts. 6. Change the wheel. Spare wheel 3 237.
7. Screw on the wheel nuts.
8. Lower the vehicle and remove jack.
9. Install the wheel wrench ensuring that it is located securely and
tighten each bolt in a crosswise
Page 243 of 281

Vehicle care241sequence. Tightening torque is
115 Nm.
If the vehicle is equipped with
alloy wheels, note that the wheel
bolts can also be used for the steel spare wheel. In this case, the
spare wheel is secured by the
conical contact of each bolt.
10. Align the valve hole in the wheel cover with the tyre valve before
installing.
Install wheel nut caps.
11. Stow the replaced wheel 3 237,
the vehicle tools 3 228 and the
adapter for the locking wheel nuts.
12. Check the tyre pressure of the installed tyre and the wheel nut
torque as soon as possible.Jump starting
Do not start with quick charger.
A vehicle with a discharged vehicle
battery can be started using jump leads and the vehicle 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 vehicle battery
to naked flames or sparks.
● A discharged vehicle battery can already freeze 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 V). Its capacity
(Ah) must not be much less than
that of the discharged vehicle 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
vehicle battery from the vehicle.
● Switch off all unnecessary electrical consumers.
● Do not lean over the vehicle battery during jump starting.
● Do not allow the terminals of one
lead to touch those of the other
lead.
Page 280 of 281

278Towing equipment .....................206
Towing the vehicle .....................242
Trailer coupling ........................... 205
Trailer stability assist .................208
Trailer towing ............................. 205
Transmission ............................... 17
Transmission display .................155
Tread depth ............................... 231
Trip odometer .............................. 98
Turn lights .......................... 101, 125
Tyre chains ................................ 233
Tyre deflation detection system . 230
Tyre designations ......................229
Tyre pressure ............................ 229
Tyre pressures ........................... 263
Tyre repair kit ............................. 233
U
Ultrasonic parking assist............. 183
Underseat storage .......................72
Upholstery .................................. 247
USB port ....................................... 92
Using this manual ..........................3
V Valet mode ................................. 111
Vehicle battery ........................... 215
Vehicle checks............................ 211
Vehicle data ................................ 256
Vehicle data recording and privacy ..................................... 269Vehicle detected ahead..............107
Vehicle dimensions .................... 261
Vehicle Identification Number ....254
Vehicle jack ................................ 228
Vehicle locator lighting ...............129
Vehicle messages .....................115
Vehicle personalisation .............116
Vehicle security ............................ 34
Vehicle specific data ......................3
Vehicle storage ........................... 210
Vehicle tools ............................... 228
Vehicle unlocking ........................... 6
Ventilation ................................... 138
W
Warning chimes .........................115
Warning lights ............................... 97
Warning triangle .......................... 84
Washer and wiper systems .........13
Washer fluid ............................... 214
Wheel changing .........................236
Wheel covers ............................. 232
Wheels and tyres .......................229
Windows ....................................... 40
Windscreen................................... 40
Windscreen wiper and washer ....89
Winter tyres ............................... 229
Wiper blade replacement ..........216