Wheels and Tyres
236
Tyre life
The life of your tyres very much depends on the following points: Tyre pressure
The working life of tyres will be shortened considerably if the tyres are
insufficiently or over-inflated and this will have an adverse effect on the
handling of your vehicle.
Correctly inflated tyres are of particular importance when travelling at
high
speeds . It is therefore good to check the pressure at least once a month
and also before setting off on a long trip. Please do not forget the spare
wheel when checking the tyres.
The tyre inflation pressures for summer tyres are indicated on the inside
of the fuel filler flap ⇒fig. 183 . The inflation pressures for winter tyres are
20 kPa (0.2 bar) higher than those for summer tyres ⇒page 240.
The tyre pressure should be at the highest pressure specified for your
vehicle at all times.
On cars with full wheel trim, valve extensions are fitted in place of dust
caps ⇒fig. 184 . It is not necessary to unscrew the valve extensions in
order to check and alter the inflation pressure of the tyre.
Always check the inflation pressure of tyres when cold. Do not reduce the
higher pressure of warm tyres. Adapt the inflation pressure of the tyres
accordingly if your vehicle is carrying a significantly higher payload.
Driving style
Fast cornering, sharp acceleration and braking (squealing tyres) increase
wear-and-tear on your tyres.
Balancing wheels
The wheels of a new vehicle are balanced. There are a wide range of influ-
ences when driving which may result in an imbalance and which makes
themselves felt through vibration in the steering.
You should have the wheels rebalanced since any imbalance increases
wear-and-tear on the steering, the suspension and tyres. A wheel must
also be rebalanced when a new tyre is fitted and each time a tyre is
repaired.
Fig. 183 An opened
fuel filler flap with the
tyre inflation pressure
table
Fig. 184 Wheel with
full trim and extended
valve
NKO B5 20.book Page 236 Monday, July 3, 2006 2:09 PM
Breakdown assistance257
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
out the battery being ignited by the strong spark which results from
the engine being started.
•Do not affix the cable end to parts of the fuel and brake
system.
•Run the jump-start cables so that they cannot be caught by any
rotating parts in the engine compartment.
•Do not bend over the batteries - risk of caustic burns!
•The vent screws of the battery cells must be tightened firmly.
•Keep any sources of ignition (naked flame, smouldering ciga-
rettes etc.) away from the battery - risk of an explosion!
Tow-starting and towing vehicle
General
Please pay attention to the following instructions if you are going
to use a tow rope:
Driver of the towing vehicle
– Do not drive off until the tow rope is taught.
– Release the clutch particularly gently when starting off or depress the accelerator particularly gently if your vehicle is
fitted with an automatic gearbox. Driver of the towed vehicle
– Switch the ignition on so that the steering wheel is not blocked
and you can also operate the turn signal lights, the headlight
flasher, the windscreen wipers and windscreen washer
system.
– Take the vehicle out of gear or move the selector lever into position N if your vehicle is fitted with an automatic gearbox.
– Note that the brake servo unit and power steering only operate if the engine is running. You will require significantly greater
physical force to depress the brake pedal and to steer the
vehicle if the engine is not running.
– Ensure that the tow rope is always kept taught.
Tow rope or tow bar
A tow bar is safest way of towing a vehicle and also minimizes any
shocks. You can use a tow rope only if a suitable tow bar is not available.
The tow rope must be elastic to protect the vehicle. Thus one should only
use plastic fibre rope or a rope made out of a similarly elastic material.
Attach the tow rope or the tow bar only to the towing eyes provided for
this purpose ⇒page 258, “Front towing eye” and ⇒page 258, “Rear
towing eye”.
Driving style
Towing another vehicle requires a certain amount of practice. Both drivers
should be familiar with the particular points about towing a vehicle.
Unskilled drivers should not attempt to tow in another vehicle or to be
towed in.
One should be constantly vigilant not to allow impermissibly high towing
forces or jerky loadings. There is always a risk of excessive stresses and
WARNING (continued)
A4
NKO B5 20.book Page 257 Monday, July 3, 2006 2:09 PM
Fuses and light bulbs261
Using the systemSafetyDriving TipsGeneral MaintenanceBreakdown assistanceTechnical Data
Caution
•Never attempt to “repair” fuses and also do not replace them with a
fuse of a higher amperage - risk of fire! This may also cause damage at
another part of the electrical system.
•Have the electrical system checked as quickly as possible by a
specialist garage if a newly inserted fuse blows again after a short time.
Note
We recommend that you have these fuses replaced by a specialist
garage.
Fuse assignment
Certain electrical components are only standard on certain vehicle model
versions or only suppliable as optional equipment for certain models.
Fig. 202 Schematic
representation of fuse
carrier
No.Ampere
s
1Heatable windscreen washing nozzles5
2Turn signals10
3Not assigned
4Licence plate light5
5
Instrument cluster - warning lights, seat heaters, cruise
control system, exterior mirror adjustment, lighting of
controls and switches, outside temperature display, air
conditioning, audible parking aid, navigation system,
multifunction steering wheel
10
6Heating of the external mirror5
7ABS, EDS, ASR, ESP, cruise control system, engine
electronics10
8Automatic headlight beam adjustment5
9Parking aid5
10CD changer, mobile phone, multifunction steering
wheel5
11DVD player7,5
12Power supply for diagnostic socket10
13Brake lights10
14Central locking control unit, interior lighting10
15Instrument cluster, air conditioning, automatic gearbox,
exterior mirror adjustment memory and navigation sys-
tem10
16ESP5
17Two-way radio system, special vehicles (police etc.)10
NKO B5 20.book Page 261 Monday, July 3, 2006 2:09 PM
Index271
Index
A
Abroad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
ABS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 189
Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Accessories . . . . . . . . . . . . . . . . . . . . . . . . . 242
Adjusting seats . . . . . . . . . . . . . . . . . . . . . . 151 Adjusting front seats manually . . . . . . . . . 72
electrical . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Adjusting the steering wheel . . . . . . . . . . . . 120
Air conditioning system Air conditioning system . . . . . . . . . . . . . 108
Climatronic . . . . . . . . . . . . . . . . . . . . . . . 113
Air outlet vents . . . . . . . . . . . . . . . . . . . . . . . 112
Airbag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 Deployment . . . . . . . . . . . . . . . . . . . . . . 163
Front airbag . . . . . . . . . . . . . . . . . . . . . . 164
Head airbag . . . . . . . . . . . . . . . . . . . . . . 169
Side airbag . . . . . . . . . . . . . . . . . . . . . . . 166
Warning light . . . . . . . . . . . . . . . . . . . . . . 29
Airbag system . . . . . . . . . . . . . . . . . . . . . . . 162 Warning light . . . . . . . . . . . . . . . . . . . . . . 29
Airbags . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162
Alarm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
Alcantara . . . . . . . . . . . . . . . . . . . . . . . . . . . 212
Alternator Warning light . . . . . . . . . . . . . . . . . . . . . . 37
Antilock brake system . . . . . . . . . . . . . . . . . 189 Antilock brake system - ABS
Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Anti-theft alarm system . . . . . . . . . . . . . . . . . 48
Ashtray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Attaching child safety seat . . . . . . . . . . . . . . . . . . . 181
Auto Check Control . . . . . . . . . . . . . . . . . . . . 24
Auto Computer . . . . . . . . . . . . . . . . . . . . . . . . 18
Automatic gearbox . . . . . . . . . . . . . . . . . . . . 131 Emergency programme . . . . . . . . . . . . . 136
Kickdown . . . . . . . . . . . . . . . . . . . . . . . . 134
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . 135
Automatic seat adjustment . . . . . . . . . . . . . . 74
Automatic vehicle wash systems . . . . . . . . . 206
Automatic wiper/washer system . . . . . . . . . . 65
Avoiding damage to your vehicle . . . . . . . . . 199
B
B rake booster . . . . . . . . . . . . . . . . . . . . . . . 189
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 37, 228 change . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Inspecting the electrolyte level . . . . . . . . 230
Operation in winter . . . . . . . . . . . . . . . . . 231
Before setting off . . . . . . . . . . . . . . . . . . . . . 150
Belt Warning light . . . . . . . . . . . . . . . . . . . . . . 37
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . . 160 Belts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Biofuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Blocking
seat belts . . . . . . . . . . . . . . . . . . . . . . . . 160
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218 Warning light . . . . . . . . . . . . . . . . . . . . . . . 32
Boot lid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Brake Handbrake . . . . . . . . . . . . . . . . . . . . . . . 125
Brake Assist . . . . . . . . . . . . . . . . . . . . . . . . . 190
Brake booster . . . . . . . . . . . . . . . . . . . . . . . . 189
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Brake pads Warning light . . . . . . . . . . . . . . . . . . . . . . . 32
Brake system Warning light . . . . . . . . . . . . . . . . . . . . . . . 36
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 262
Button on the driver's door Central locking system . . . . . . . . . . . . . . . 43
Buttons on the driver's door Power windows . . . . . . . . . . . . . . . . . . . . . 49
C
Car jack . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Car state . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
CargoFlex . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
NKO B5 20.book Page 271 Monday, July 3, 2006 2:09 PM
Index275
Multifunction steering wheel . . . . . . . . . . . . 137
Operating cruise control system . . . . . . 137
Operating mobile phone . . . . . . . . . . . . . 139
Operation of radio . . . . . . . . . . . . . . . . . 138
Multi-functional indicator . . . . . . . . . . . . . . . . 18
N
Navigation system . . . . . . . . . . . . . . . . . 26, 147
New tyres . . . . . . . . . . . . . . . . . . . . . . . . . . 192
O
Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221 Change . . . . . . . . . . . . . . . . . . . . . . . . . 223
Warning light . . . . . . . . . . . . . . . . . . . . . . 33
Oil dipstick . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Onboard computer . . . . . . . . . . . . . . . . . . . . 18
Open door Open door . . . . . . . . . . . . . . . . . . . . . . . . 34
Opening a single door . . . . . . . . . . . . . . . . . . 41
Operating cruise control system Multifunction steering wheel . . . . . . . . . . 137
Operating mobile phone Multifunction steering wheel . . . . . . . . . . 139
Operating the radio Multifunction steering wheel . . . . . . . . . . 138
Operation in winter Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . . 215
De-icing windows . . . . . . . . . . . . . . . . . . 208 Snow chains . . . . . . . . . . . . . . . . . . . . . . 241
Tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . 240
Outside temperature . . . . . . . . . . . . . . . . . . . 20
Overview of the engine compartment . . . . . 220
P
Paint . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 208
Paint damage . . . . . . . . . . . . . . . . . . . . . . . . 208
Parking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . 126
Parking light . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Passive Safety . . . . . . . . . . . . . . . . . . . . . . . 149
Pedals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Petrol engines Starting the engine . . . . . . . . . . . . . . . . . 123
Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Power socket . . . . . . . . . . . . . . . . . . . . . 99, 100
Power steering . . . . . . . . . . . . . . . . . . . . . . . 191
Power window . . . . . . . . . . . . . . . . . . . . . . . . 49
Power windows Button in front passenger door and in rear doors . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Buttons on the driver's door . . . . . . . . . . . 49
Central locking system . . . . . . . . . . . . . . . 51
R
Radiator fan . . . . . . . . . . . . . . . . . . . . . . . . . 226
Raise vehicle . . . . . . . . . . . . . . . . . . . . . . . . 252 Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Rear
drinks can holder . . . . . . . . . . . . . . . . . . . 96
Rear armrest . . . . . . . . . . . . . . . . . . . . . . . . 107
Rear fog light . . . . . . . . . . . . . . . . . . . . . . . . . 57
Rear seats . . . . . . . . . . . . . . . . . . . . . . . . . . . 85
Rear window heater . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Rear window heater . . . . . . . . . . . . . . . . . . . . 63
Rear-view mirror Exterior mirror . . . . . . . . . . . . . . . . . . . . . . 69
Interior mirror . . . . . . . . . . . . . . . . . . . . . . 67
Recirculated air mode Heating and ventilation . . . . . . . . . . . . . . 111
Refrigerator . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Refuelling . . . . . . . . . . . . . . . . . . . . . . . . . . . 216 Emergency release of fuel filler flap . . . . 217
Remote control . . . . . . . . . . . . . . . . . . . . . . . . 46 Synchronisation . . . . . . . . . . . . . . . . . . . . 47
Replacing fuses . . . . . . . . . . . . . . . . . . . . . . 260
Replacing the wiper blades . . . . . . . . . . . . . . 67
Roof aerial . . . . . . . . . . . . . . . . . . . . . . . . . . 206
Running in the car . . . . . . . . . . . . . . . . . . . . 192
S
Safe distance to steering wheel . . . . . . . . . . 120
Safe securing . . . . . . . . . . . . . . . . . . . . . . . . . 42
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
NKO B5 20.book Page 275 Monday, July 3, 2006 2:09 PM
Index
276
Safety information
Engine compartment . . . . . . . . . . . . . . . 219
Saving electrical energy . . . . . . . . . . . . . . . 194
Seat belt height adjuster . . . . . . . . . . . . . . . 159
Seat belt warning light . . . . . . . . . . . . . . . . 158
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . . 155 Belt tensioners . . . . . . . . . . . . . . . . . . . 160
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . 213
fastening . . . . . . . . . . . . . . . . . . . . . . . . 158
Height adjustment . . . . . . . . . . . . . . . . . 159
Safety information . . . . . . . . . . . . . . . . . 157
taking off . . . . . . . . . . . . . . . . . . . . . . . . 159
Warning light . . . . . . . . . . . . . . . . . . . . . . 37
Seat heaters . . . . . . . . . . . . . . . . . . . . . . . . . 80
Seats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 Heater . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Selector lever . . . . . . . . . . . . . . . . . . . . . . . 132
Selector lever positions . . . . . . . . . . . . . . . . 132
Service Interval Display . . . . . . . . . . . . . . . . 16
Service intervals . . . . . . . . . . . . . . . . . . . . . . 16
Service key . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Setting temperature Air conditioning system . . . . . . . . . . . . . 109
Setting the clock . . . . . . . . . . . . . . . . . . . . . . 15
Shifting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 124
Side airbag . . . . . . . . . . . . . . . . . . . . . . . . . 166
Side lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Ski bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Snow chains . . . . . . . . . . . . . . . . . . . . . . . . 241
Spare wheel . . . . . . . . . . . . . . . . . . . . . . . . 247 Speedometer . . . . . . . . . . . . . . . . . . . . . . . . 16
Stability programme . . . . . . . . . . . . . . . . . . 185
Starting the engine . . . . . . . . . . . . . . . . . . . 122
Diesel engines . . . . . . . . . . . . . . . . . . . . 123
Petrol engines . . . . . . . . . . . . . . . . . . . . 123
Steering booster . . . . . . . . . . . . . . . . . . . . . 191
Storage compartment Centre console . . . . . . . . . . . . . . . . . . . 103
Drawer compartment . . . . . . . . . . . . . . . 102
Lighting . . . . . . . . . . . . . . . . . . . . . . . . . . 61
Spectacles . . . . . . . . . . . . . . . . . . . . . . . 103
Storage compartments . . . . . . . . . . . . . . . . 101
Storage drawer . . . . . . . . . . . . . . . . . . . . . . 102
Storage facilities . . . . . . . . . . . . . . . . . . . . . 101
Stowage compartment Armrest with stowage compartment . . . 106
Door panels . . . . . . . . . . . . . . . . . . . . . . 104
Umbrella . . . . . . . . . . . . . . . . . . . . . . . . 105
Stowage compartment below steering wheel . . . 104
Sun screen . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Switching lights on and off . . . . . . . . . . . . . . 56
Switching the engine off . . . . . . . . . . . . . . . . . . . . . . . . 123
Switching the engine off . . . . . . . . . . . . . . . 123
T
Taking care of your vehicle . . . . . . . . . . . . . 205 TCS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 186
Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Telephone . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Temperature outside . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
the first 1 500 kilometres . . . . . . . . . . . . . . . 192
The roof luggage rack system . . . . . . . . . . . . 94
Thickness of brake pads Warning light . . . . . . . . . . . . . . . . . . . . . . 32
Through-loading bag . . . . . . . . . . . . . . . . . . . 87
Tilting roof . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . 135
Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
Towing a trailer . . . . . . . . . . . . . . . . . . . . . . 200
Towing device . . . . . . . . . . . . . . . . . . . . . . . 202
Towing eye front . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 258
towing vehicle . . . . . . . . . . . . . . . . . . . . . . . 257
Tow-starting . . . . . . . . . . . . . . . . . . . . . . . . . 257
Traction control system (TCS) . . . . . . . . . . . 186 Warning light . . . . . . . . . . . . . . . . . . . . . . 35
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200 General Maintenance . . . . . . . . . . . . . . . 200
Transporting children safely . . . . . . . . . . . . 174
Tread depth . . . . . . . . . . . . . . . . . . . . . . . . . 237
Turn signal lights . . . . . . . . . . . . . . . . . . . . . . 59 Warning light . . . . . . . . . . . . . . . . . . . . . . 28
Turn signal system for vehicles towing a trailer Warning light . . . . . . . . . . . . . . . . . . . . . . 29
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