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248Vehicle careChanging tyre and wheel
size If tyres of a different size than thosefitted 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.
Wheel covers must not impair brake
cooling.9 Warning
Use of unsuitable tyres or wheel
covers could lead to sudden
pressure loss and thereby
accidents.
Vehicles with steel wheels: When
using locking wheel nuts, the wheel
covers might not be attached to the
steel wheels.
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).
9 Warning
Damage may lead to tyre blowout.
Tyre chains are only permitted on
tyres of size 215/60 R 16 and
225/50 R 17.
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256Vehicle care
8. Lower holder all the way andremove spare wheel.
9. Change the wheel. The damaged wheel must be
secured in the load compartment,
see below.
10. Lift the empty spare wheel holder and insert the safety cable.
11. Lift the spare wheel holder further
and engage in both catches. The
open sides of the catches must
point in the direction of travel.
12. Close the empty spare wheel holder by turning both hexagon
bolts clockwise successively
using the wheel wrench.
13. Fit the caps above both hexagon bolts.
14. Stow wheel wrench and the jack in the stowage in front of the
tailgate.
15. Close the stowage compartment cover.
When stowing the spare wheel in the
spare wheel holder, note that the
wheel is positioned with the tyre valve
above the recess of the wheel holder.
Stowing a damaged wheel in the load compartment
The spare wheel holder is not
designed for other tyre sizes than the
spare wheel.
A damaged wheel wider than the
spare wheel must be stowed in the
load compartment and secured with a strap. Vehicle tools 3 242.
The seats of the third row must be folded down 3 76.1. Position the wheel close to the left
sidewall of the load compartment.
2. Place the loop end of the strap through the front lashing eye on
the left side.
3. Place the hook end of the strap through the loop and pull it until
the strap is fastened securely to
the lashing eye.
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Vehicle care257
4. Insert the strap through thespokes of the wheel as shown in
the illustration.
5. Mount the hook to the rear left lashing eye.
6. Tighten the strap and secure it using the buckle.
9 Danger
Always drive with folded up and
engaged rear seat backrests when stowing a damaged full size wheel
in the load compartment.
9 Warning
Storing a jack, a wheel or other
equipment in the load
compartment could cause injury if they are not fixed properly. During a sudden stop or a collision, looseequipment could strike someone.
Always store jack and tools in the
respective storage compartments
and secure them by fixing.
Damaged wheel placed in the load
compartment must always be
secured by the strap.
Temporary spare wheel
The use of the temporary spare wheel
could affect driveability. Have the
defective tyre renewed or repaired as soon as possible.
Only mount one temporary spare
wheel. Do not drive faster than
80 km/h. Take curves slowly. Do not
use for a long period of time.
If your vehicle gets a flat tyre on the
rear while towing another vehicle,
mount the temporary spare wheel in the front and the full tyre in the rear.
Tyre chains 3 248.
Spare wheel with directional tyre
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 294 of 299

292IndexAAccessories and vehicle modifications .......................... 218
Active Emergency Braking .........188
Active head restraints ...................37
Adaptive cruise control .......114, 177
Adaptive forward lighting ..........
................................ 114, 136, 229
AdBlue ........................ 112, 161, 266
Adjustable air vents ...................151
Airbag and belt tensioners .........109
Airbag deactivation ..............56, 109
Airbag system .............................. 54
Air conditioning regular operation ................................ 153
Air conditioning system .............. 146
Air intake .................................... 153
Air vents...................................... 151
Antilock brake system ................ 168
Antilock brake system (ABS) .....111
Anti-theft alarm system ................26
Anti-theft locking system .............. 26
Appearance care ........................261
Armrest ......................................... 42
Armrest storage ........................... 66
Ashtrays ..................................... 101
Automatic anti-dazzle ..................30
Automatic light control ...............134
Automatic locking ........................24Automatic transmission .............164
Auxiliary heater ........................... 151
B
Battery discharge protection ......144
Battery voltage ........................... 124
Bicycle rack .................................. 68
BlueInjection ............................... 161
Bonnet ....................................... 220
Brake and clutch fluid .................266
Brake and clutch system ...........110
Brake assist ............................... 170
Brake fluid .................................. 223
Brakes ............................... 168, 223
Breakdown.................................. 259
Bulb replacement ....................... 227
C Capacities .................................. 282
Cargo management system ........86
Car Pass ...................................... 20
Catalytic converter .....................161
Central locking system ................22
Centre console lighting ..............143
Centre console storage ...............67
Changing tyre and wheel size ...248
Charging system ........................ 109
Child locks ................................... 24
Child restraint installation locations ................................... 59