Wheels and tyres
228Wheel bolts
Wheel bolts must be tightened to the correct torque.The design of wheel bolts is matched to the rims. If different wheel rims are
fitted, the correct wheel bolts with the right length and correctly shaped bolt
heads must be used. This ensures that wheels are fitted securely and that the
brake system functions correctly.
In certain circumstances, you may not use wheel bolts from a different car -
even if it is the same model ⇒page 200.
After the wheels have been changed, the tightening torque of the wheel bolts
should be checked as soon as possible with a torque wrench. ⇒ The tight-
ening torque for steel and alloy wheels is 120 Nm.
WARNING
If the wheel bolts are not tightened correctly, the wheel could become
loose while driving. Risk of accident.•
The wheel bolts must be clean and turn easily. Never apply grease or oil
to them.
•
Use only wheel bolts which belong to the wheel.
•
If the torque of the wheel bolts is to o low, they could loosen whilst the
vehicle is in motion. Risk of accident! If the tightening torque is too high,
the wheel bolts and threads can be damaged.Caution
The prescribed torque for wheel bolts for steel and alloy wheels is 120 Nm.
Winter tyres
Winter tyres will improve the vehicles handling on snow and
ice.In winter conditions winter tyres will considerably improve the vehicles
handling. The design of summer tyres (width, rubber compound, tread
pattern) gives less grip on ice and snow.
Winter tyres must be inflated to a pressure 0.2 bar higher than the pressures
specified for summer tyres (see sticker on tank flap).
Winter tyres must be fitted on all four wheels.
Information on permitted winter tyre sizes can be found in the vehicle's regis-
tration documents. Use only radial winter tyres. All tyre sizes listed in the
vehicle documentation also apply to winter tyres.
Winter tyres lose their effectiveness when the tread is worn down to a depth
of 4 mm.
The speed rating code ⇒page 227, “New tyres and wheels” determines the
following speed limits for winter tyres: ⇒
Q max. 160 km/h
S max. 180 km/h
T max. 190 km/h
H max. 210 km/h
In some countries, vehicles which can exceed the speed rating of the fitted
tyre must have an appropriate sticker in the driver's field of view. These
stickers are available from your Authorised Service Centre. The legal require-
ments of each country must be followed.
Do not have winter tyres fitted for unnecessarily long periods. Vehicles with
summer tyres handle better when the roads are free of snow and ice.
If you have a flat tyre, please refer to the notes on the spare wheel
⇒ page 227, “New tyres and wheels”.
leon_ingles Seite 228 Montag, 26. Januar 2009 4:29 16
If and when237
Safety First
Operating instructions
Practical tips
Te c h n i c a l D a t a
Anti-theft wheel bolts
A special adapter is required to turn the anti-theft wheel
bolts.– Insert the adapter onto the wheel bolt and push it on as far as it
will go ⇒fig. 155 .
– Fit the box spanner as far as it will go over the adapter.
– Loosen or tighten the wheel bolt as appropriate.Error code
The code number of the anti-t heft wheel bolt is stamped onto the front part of
the adaptor.
The code number should be noted and kept in a safe place, as it is only by
using the code number that a duplicat e adaptor can be obtained from an
Authorised Service Centre.
Tyres with directional tread pattern
Tyres with directional tread pattern must be fitted so that they
rotate in the correct direction.A directional tread pattern can be ident ified by arrows on the sidewall that
point in the direction of rotation. Always note the direction of rotation indi-
cated when fitting the wheel. This is important so that these tyres can give
maximum grip and avoid excessive noise, tread wear and aquaplaning.
If, in an emergency, you have to mount the spare wheel so it rotates in the
wrong direction, you must drive extremel y carefully. The tyre will not give
optimum performance. This is particul arly important when driving on wet
roads.
To benefit from the advantages of tyres with this type of tread pattern, the
defective tyre should be replaced as soon as possible so that all tyres again
rotate in the correct direction.Tyre repair kit (Tyre-Mobility-System)*General information and safety notesYour vehicle is equipped with a tyre repair kit: the Tyre Mobility System.
In the event of a tyre puncture, a sealing compound and an air compressor are
located in the luggage compartment under the floor panel.
The Tyre Mobility System will reliably seal punctures caused by the penetra-
tion of a foreign body of up to about 4 mm in diameter.
It is not necessary to remove the foreign body from the tyre.
Instructions for the sealing compound are located on the sealing compound
container.
Fig. 155 Anti-theft wheel
bolt
leon_ingles Seite 237 Montag, 26. Januar 2009 4:29 16
Index
290Traction control system
warning lamp . . . . . . . . . . . . . . . . . . . . . . . . . 82
Trailer Trailer towing . . . . . . . . . . . . . . . . . . . . . . . . 187
Trailer eyes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 257
Trailer turn signals Warning lamp . . . . . . . . . . . . . . . . . . . . . . . 116
Trailer weights . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Turn signals . . . . . . . . . . . . . . . . . . . . . . . . . . . . 116 Warning lamp . . . . . . . . . . . . . . . . . . . . 76, 116
Turning light . . . . . . . . . . . . . . . . . . . . . . . . . . . 114
Type plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Tyre Mobility-System (Tyre repair kit) . . . . . . . 232
Tyre monitor indicator . . . . . . . . . . . . . . . . . . . . . 78
Tyre pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . 222 Loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Tyre pressure monitoring . . . . . . . . . . . . . . . . . 223
Tyre pressures . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Tyre repair kit . . . . . . . . . . . . . . . . . . . . . . . 232, 237
Tyre-Mobility-System (Tyre repair kit) . . . . . . . 237
Tyres and wheels Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 227
Tyres service life . . . . . . . . . . . . . . . . . . . . . . . . 224
Tyres tread depth . . . . . . . . . . . . . . . . . . . . . . . 225
Tyres with directional tread pattern . . . . . . . . . 222UUnderbody sealant . . . . . . . . . . . . . . . . . . . . . . 197 Unlocking and locking
Personalisation . . . . . . . . . . . . . . . . . . . . . . . 94
Using the Tiptronic gear syst em . . . . . . . . . . . 164
VVehicle battery . . . . . . . . . . . . . . . . . . . . . . . . . 219
Vehicle data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
Vehicle identification data . . . . . . . . . . . . . . . . 260
Vehicle identification number . . . . . . . . . . . . . 260
Vehicle modifications . . . . . . . . . . . . . . . . . . . . 200
Vehicle paintwork
Products for vehicle maintenance . . . . . . . 191
Waxing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 193
Vehicle tools Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Vehicle wallet storage . . . . . . . . . . . . . . . . . . . 133
Vehicle washing . . . . . . . . . . . . . . . . . . . . . . . . 192
Ventilation slits . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Volumetric sensor* Activation . . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Deactivation . . . . . . . . . . . . . . . . . . . . . . . . 100WWarning lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
Warning lamps . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Warning reportsRed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Yellow . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Warning texts in the display . . . . . . . . . . . . . . . . 62 Warning triangle . . . . . . . . . . . . . . . . . . . . . . . . 138
Washer fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Washing by hand . . . . . . . . . . . . . . . . . . . . . . . 192
Washing the vehicle . . . . . . . . . . . . . . . . . . . . . 192
Washing with high pressure cleaners . . . . . . . 193
Water
warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Water in the windscreen washer tank . . . . . . . 214
Wear indicators . . . . . . . . . . . . . . . . . . . . . . . . . 225
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . 234, 262 Torque . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
Wheel change . . . . . . . . . . . . . . . . . . . . . . . . . . 232
Wheel trims . . . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222, 262
Why assume the correct sitting position? . . . . . 29
Why should head restraints be correctly adjusted? 13
Why to wear seat belts? . . . . . . . . . . . . . . . . . . . 19
Why wear seat belts? . . . . . . . . . . . . . . . . . . 20, 29
Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104
Windscreen washer fluid Warning lamp . . . . . . . . . . . . . . . . . . . . . . . . 78
Windscreen wiper blades Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195
Windscreen wipers . . . . . . . . . . . . . . . . . . . . . . 119 Changing the front blades . . . . . . . . . . . . . 215
Changing the rear blade . . . . . . . . . . . . . . . 216
Winter driving Diesel engine . . . . . . . . . . . . . . . . . . . . . . . 205
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . . 228
leon_ingles Seite 290 Montag, 26. Januar 2009 4:29 16