2008 AUDI S4 belt

Checking and topping up fluids
262
WARNING
•
The cooling system is under pr essure. Do not unscrew the cap
on the expansion tank when the engine is hot: you could be
scalded by escaping steam
•
The coolant and coolan t additive can be a health hazard. Store
the coolant additive in the original container in a safe place out of
reach of children – risk of poisoning.For the sake of the environment
Drained off coolant should not be used again. Drain off the used
coolant into a suitable container and dispose of it in the proper
manner (observe environmental regulations).Radiator fan
The radiator fan can start running spontaneously.The radiator fan is driven by the engine via a poly V-belt. The speed
of the fan is varied by a viscous clutch according to the temperature.
There is also an auxiliary electric fan, which cuts in automatically
whenever the temperature of the coolant and the engine compart-
ment rises above a certain level.
The auxiliary fan can continue to run for as long as 10 minutes after
stopping the engine – even after the ignition is switched off. It may
also start running suddenly ⇒ after a while if•
residual heat raises the coolant temperature, or
•
the hot engine compartment is ad ditionally heated up by the
sun.
WARNING
When working in the engine compa rtment be aware that the radi-
ator fan may start running suddenly – risk of injury.
Brake fluidChecking brake fluid level
The brake fluid level can be checked at a glance.– Check the fluid level on the brake fluid reservoir ⇒fig. 258. It should always be between the “MIN” and
“MAX” marks.In right-hand drive vehi cles the brake fluid reservoir is on the other
side of the engine compartment.
The fluid level may drop slightly after a period of time due to the
automatic compensation for brake pad wear. This is quite normal.
However, if the level goes down noticeably in a short time, or drops
below the “MIN” mark, there may be a leak in the brake system. If
the fluid level in the reservoir is too low, this will be indicated by the
brake warning lamp ⇒page 32 . If this should happen, take the car
to a qualified workshop immediately and have the brake system
inspected.
Fig. 258 Engine
compartment: Mark-
ings on brake fluid
reservoir
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. I

Index331
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Automatic air conditioner plus
See Deluxe automatic air conditioner plus
101
Automatic cruise control See adaptive cruise control . . . . . . . . 128
Automatic gearbox Dynamic gear control program . . . . . 166
Kick-down feature . . . . . . . . . . . . . . . . 165
Manual release (multitronic®) . . . . . . 168
multitronic® . . . . . . . . . . . . . . . . . . . . . 162
Paddle levers (tiptronic mode) . . . . . . 167
Safety interlock for ignition key . . . . . 116
Selector lever lock . . . . . . . . . . . . . . . . 165
Selector lever positions . . . . . . . . . . . 163
Steering wheel with paddle levers . . 167
tiptronic . . . . . . . . . . . . . . . . . . . . 162, 166
Automatic headlight control . . . . . . . . . . . 57
Automatic headlights . . . . . . . . . . . . . . . . . 59
Auxiliary heating Deluxe automatic air conditioner plus . . 110
Description . . . . . . . . . . . . . . . . . . . . . . 110
Remote control . . . . . . . . . . . . . . . . . . 113
Running time . . . . . . . . . . . . . . . . . . . . 112
Switching on/off immediately . . . . . . 111
Timer . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Average fuel consumption . . . . . . . . . . . . . 25
Average speed . . . . . . . . . . . . . . . . . . . . . . . 25
Axle weights See Performance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 323
BBattery
Charging . . . . . . . . . . . . . . . . . . . . . . . . 265
Low charge . . . . . . . . . . . . . . . . . . . . . . 226
Power level . . . . . . . . . . . . . . . . . . . . . . 226
Power management . . . . . . . . . . . . . . 226
Replacing . . . . . . . . . . . . . . . . . . . . . . . 266
Winter conditions . . . . . . . . . . . . . . . . 263
Battery power . . . . . . . . . . . . . . . . . . . . . . . 38
Bayonet fastener Bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Bulb holder . . . . . . . . . . . . . . . . . . . . . . 306
Belt tensioners . . . . . . . . . . . . . . . . . . . . . . 199
Bicycle rack Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . 235
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . . . . . 251
Bioethanol fuel . . . . . . . . . . . . . . . . . . . . . 251
Blower Deluxe automatic air conditioner . . . . . 96
Deluxe automatic air conditioner plus . . 104
Bonnet Closing . . . . . . . . . . . . . . . . . . . . . . . . . 256
Opening . . . . . . . . . . . . . . . . . . . . . . . . 254
Releasing . . . . . . . . . . . . . . . . . . . . . . . 254
Boot See Loading luggage compartment . 192
See Luggage compartment . . . . . . . . . . 79
Boot lid Central locking system . . . . . . . . . . . . . 51
Manual release . . . . . . . . . . . . . . . . . . . . 52 Brake system
Brake assist system . . . . . . . . . . . . . . . 222
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . 262
Brake light defective . . . . . . . . . . . . . . . 37
Brake pads worn . . . . . . . . . . . . . . . . . . 37
Brake servo . . . . . . . . . . . . . . . . . . . . . . 224
Electro-mechanical parking brake . . . 121
General notes . . . . . . . . . . . . . . . . . . . . 224
Malfunction . . . . . . . . . . . . . . . . . . . . . . 32
Warning lamp . . . . . . . . . . . . . . . . . . . . . 20
braking guard See Audi braking guard . . . . . . . . . . . . 142
Bulb holder Bayonet fastener . . . . . . . . . . . . . . . . . 306
Bulb monitor . . . . . . . . . . . . . . . . . . . . . . . . 37
Bulbs Bayonet fastener . . . . . . . . . . . . . . . . . 305
Changing (general notes) . . . . . . . . . . 304
Bulbs, changing . . . . . . . . . . . . . . . . . . . . . 304 Brake lights . . . . . . . . . . . . . . . . . . . . . . 311
Bulb holder with bayonet fastener . 305, 306
Dipped headlights . . . . . . . . . . . . . . . . 308
Front fog lights . . . . . . . . . . . . . . . . . . . 310
Main beam headlights . . . . . . . . . . . . . 307
Number plate light . . . . . . . . . . . . . . . . 315
Rear fog light . . . . . . . . . . . . . . . . . . . . 314
Rear lights . . . . . . . . . . . . . . . . . . . . . . . 311
Reversing light . . . . . . . . . . . . . . . . . . . 314
Turn signals (rear) . . . . . . . . . . . . . . . . 311
Business equipment . . . . . . . . . . . . . . . . . 278
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Index
338
Manual . . . . . . . . . . . . . . . . . . . . . . . . . . 73
Seat height (manual) . . . . . . . . . . . . . . 73
Seat belt height adjustment . . . . . . . . . . 199
Seat belts . . . . . . . . . . . . . . . . . . . . . . . . . 194 Adjusting seat belts . . . . . . . . . . . . . . 197
Belt tensioners . . . . . . . . . . . . . . . . . . 199
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . 250
During pregnancy . . . . . . . . . . . . . . . . 198
Height adjustment . . . . . . . . . . . . . . . 199
Putting on . . . . . . . . . . . . . . . . . . . . . . 197
Safety notes . . . . . . . . . . . . . . . . . . . . . 195
Taking off . . . . . . . . . . . . . . . . . . . . . . . 199
Warning lamp . . . . . . . . . . . . . . . . . . . . 18
Seat heating . . . . . . . . . . . . . . . . . . . . . . . 114 Front (deluxe automati c air conditioner) .
114
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
Seat memory . . . . . . . . . . . . . . . . . . . . . . . . 75
Selector lever Manual release (multitronic®) . . . . . . 168
Selector lever positions . . . . . . . . . . . . . . 163
Service interval display . . . . . . . . . . . . . . . 24
Service position for windscreen wipers . 67
servotronic . . . . . . . . . . . . . . . . . . . . . . . . 225
side assist Area covered by sensors . . . . . . . . . . 151
Changing settings in the MMI . . . . . . 155
Description . . . . . . . . . . . . . . . . . . . . . 149
How the system works . . . . . . . . . . . . 151
Information and warning modes . . . 151
Messages in instrument cluster display .156 Safety notes . . . . . . . . . . . . . . . . . . . . . 157
Switching on and off . . . . . . . . . . . . . 149
Side lights . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Single journey memory . . . . . . . . . . . . . . . 26
Sitting position Driver . . . . . . . . . . . . . . . . . . . . . . . . . . 188
Front passenger . . . . . . . . . . . . . . . . . 189
Incorrect sitting position . . . . . . . . . . 191
Rear passengers . . . . . . . . . . . . . . . . . 189
Ski bag . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Snow chains . . . . . . . . . . . . . . . . . . . . . . . 273
Sockets 230 Volt . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Spare key . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 Starting the engine . . . . . . . . . . . . . . . . 46
Spare parts . . . . . . . . . . . . . . . . . . . . . . . . 277
Spare wheel . . . . . . . . . . . . . . . . . . . . . . . . 284
Speed warning . . . . . . . . . . . . . . . . . . . . . . 28
Speedometer . . . . . . . . . . . . . . . . . . . . . 14, 23
Starting the engine After fuel tank has been run dry . . . . 252
Jump-starting . . . . . . . . . . . . . . . . . . . 293
Spare key . . . . . . . . . . . . . . . . . . . . . . . . 46
Tow-starting . . . . . . . . . . . . . . . . . . . . 295
Starting with jump leads . . . . . . . . . . . . . 293
Status messages . . . . . . . . . . . . . . . . . . . . . 30
Steering . . . . . . . . . . . . . . . . . . . . . . . . . 16, 36 Locking the steering . . . . . . . . . . . . . . 116
Malfunction . . . . . . . . . . . . . . . . . . . . . . 34
Steering wheel height adjustment (manual) . . . . . . . . . . . . . . . . . . . . . . . 116
Storage compartments . . . . . . . . . . . . . . . 90 Front seats . . . . . . . . . . . . . . . . . . . . . . . 91 Stretch net . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Sun blinds . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Sun roof
Convenience open/close function . . . . 54
Opening and closing . . . . . . . . . . . . . . . 55
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Supplementary heater Deluxe automatic air conditioner . . . 101
Deluxe automatic air co nditioner plus . . .
110
Suspension control . . . . . . . . . . . . . . . . . 159 Warning lamp . . . . . . . . . . . . . . . . . . . . 39
Switches on driver's door Central locking system . . . . . . . . . . . . . 49
Switching off the engine . . . . . . . . . 118, 120
Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
TTailgate See Boot lid . . . . . . . . . . . . . . . . . . . . . . 51
Tank capacity . . . . . . . . . . . . . . . . . . . . . . 321
Technical data . . . . . . . . . . . . . . . . . . . . . . 320
tiptronic . . . . . . . . . . . . . . . . . . . . . . . 162, 166
Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Total journey memory . . . . . . . . . . . . . . . . 26
Tow-away protection . . . . . . . . . . . . . . . . . 50
Towing Automatic braking . . . . . . . . . . . . . . . . 233
Trailer stabilisation . . . . . . . . . . . . . . . 233
Towing away . . . . . . . . . . . . . . . . . . . . . . . 295
Towing bracket Parking system . . . . . . . . . . . . . . . . . . 177
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Index339
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Towing bracket, removable . . . . . . . . . . . 235
Towing bracket, retrofitting . . . . . . . . . . . 240
Towline anchorage
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . 296
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . 297
Tow-starting . . . . . . . . . . . . . . . . . . . . . . . 297
Traction control system . . . . . . . . . . . . . . 222
Trailer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232 Accessories . . . . . . . . . . . . . . . . . . . . . 235
Notes on towing . . . . . . . . . . . . . . . . . 234
Points to check before towing . . . . . . 232
Technical requirements . . . . . . . . . . . 232
Trailer stabilisation . . . . . . . . . . . . . . . . . . 233
Trailer turn signals Indicator lamp . . . . . . . . . . . . . . . . . . . . 18
Trailer weights See Performance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 323
Tread depth . . . . . . . . . . . . . . . . . . . . . . . . 270
Trip recorder . . . . . . . . . . . . . . . . . . . . . . . . 14
Trips, checklist . . . . . . . . . . . . . . . . . . . . . 187
Turn signals . . . . . . . . . . . . . . . . . . . . . . . . . 62 Indicator lamp . . . . . . . . . . . . . . . . . . . . 18
Type plate . . . . . . . . . . . . . . . . . . . . . . . . . 321
Tyre Mobility System . . . . . . . . . . . . . . . . 285
Tyre pressure . . . . . . . . . . . . . . . . . 39, 41, 268
Tyre pressure monitoring system . . . . 39, 41
Tyre repair kit . . . . . . . . . . . . . . . . . . . . . . 283 Tyre Mobility System . . . . . . . . . . . . . 285
Tyres Inflation pressures . . . . . . . . . . . . 39, 268
Run flat tyres . . . . . . . . . . . . . . . . . . . . 274 Tread wear indicators . . . . . . . . . . . . . 270
Tyre pressure monitoring system . 39, 41
Tyre service life . . . . . . . . . . . . . . . . . . 268
UUniversal transmitter . . . . . . . . . . . . . . . . 179
Unleaded fuel . . . . . . . . . . . . . . . . . . . . . . 251
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Central locking system . . . . . . . . . . . . . 48VVehicle data sticker . . . . . . . . . . . . . . . . . . 321
Vehicle identification data . . . . . . . . . . . . 321
Vehicle identification number . . . . . . . . . 321
VentilationDeluxe automatic air conditioner . . . . . 93
Deluxe automatic air conditioner plus . . 101
Ventilation slots . . . . . . . . . . . . . . . . . . . . . 192WWarning lamps . . . . . . . . . . . . . . . . . . . . . . 15 Airbag system . . . . . . . . . . . . . . . . . . . . 17
Anti-lock brake system . . . . . . . . . . . . . 19
Brake system . . . . . . . . . . . . . . . . . . . . . 20
Dynamic steering . . . . . . . . . . . . . . . 16, 36
Electro-mechanical parking brake . 19, 20
Electronic stabilisatio n program . . . . . 17
Emission control system . . . . . . . . . . . . 18
Engine management . . . . . . . . . . . . . . . 16 Seat belt . . . . . . . . . . . . . . . . . . . . . . . . . 18
Suspension control . . . . . . . . . . . . . . . . 39
Warning triangle . . . . . . . . . . . . . . . . . . . . 282
Washer fluid level low . . . . . . . . . . . . . . . . . 37
Washing the vehicle By hand . . . . . . . . . . . . . . . . . . . . . . . . . 244
Car wash . . . . . . . . . . . . . . . . . . . . . . . . 244
With high-pressure cleaner . . . . . . . . 244
Waxing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
Weights See Performance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 323
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . 272
Wheel imbalance . . . . . . . . . . . . . . . . . . . . 268
Wheels . . . . . . . . . . . . . . . . . . . . . . . . 246, 268 Changing . . . . . . . . . . . . . . . . . . . . . . . . 288
Changing wheels round . . . . . . . . . . . 270
Window heating . . . . . . . . . . . . . . . . . 98, 106
Windows Cleaning . . . . . . . . . . . . . . . . . . . . . . . . 246
De-icing . . . . . . . . . . . . . . . . . . . . . . . . . 246
Malfunctions . . . . . . . . . . . . . . . . . . . . . . 55
Windows (electric) See Electric windows . . . . . . . . . . . . . . . 53
Windscreen washer fluid . . . . . . . . . . . . . 267
Windscreen wiper and washer system . . . 65
Windscreen wipers . . . . . . . . . . . . . . . . . . . 65 Changing blades . . . . . . . . . . . . . . . . . . 68
Defective . . . . . . . . . . . . . . . . . . . . . . . . . 39
Service position . . . . . . . . . . . . . . . . . . . 67
Winter conditions Battery . . . . . . . . . . . . . . . . . . . . . . . . . . 263
Care of vehicle . . . . . . . . . . . . . . . . . . . 244
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