2008 AUDI S4 wiper fluid

Driver information system37
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Light sensor / rain sensor defective

 Automatic headlights / automatic wipers defective
If the  symbol appears, this means that the light sensor / rain
sensor is not functioning.For safety reasons, the dipped beam head-
lights will then be switched on permanently when the light switch
is set to the AUTO position. However, you can still switch the lights
on and off in the normal way with th e light switch. If the rain sensor
is defective, the functions operated via the windscreen wiper lever
will still be available. You should have the light sensor / rain sensor
checked by a qualified workshop as soon as possible.
Brake pads worn

 Brake pads!
If the  symbol lights up, have the front brake pads (and, for
safety's sake the rear pads as well) inspected by a qualified
workshop.
Applies to vehicles: with bulb monitorBulb monitor

The bulb monitor checks whethe r the lights on the vehicle
are working.The bulb monitor checks whether the lights on the vehicle are
working. If it detects a defective bulb on the vehicle it will show a
yellow warning symbol together with a message indicating which
light is not working.
Bulb failure

If the symbol
 lights up, this means that one of the turn signals
(front or rear), headlights, brake li ghts, rear lights, fog lights or the
rear fog light is not working.
WARNING
•
Bulbs are sensitive to pressure. The glass can break when you
touch the bulb, causing injury.
•
Incorrect handling of the high-voltage element of xenon gas-
discharge bulbs* can have potentially fatal consequences.Note
Have the components repaired or replaced by a qualified
workshop.Applies to vehicles: with washer fluid warning systemWasher fluid level low

 Please top up washer fluid
If the  symbol lights up, top up the fluid for the windscreen
washer and headlight washer system* ⇒page 267 .
Fuel level low

 Please refuel
When this symbol
 comes on for the first time, there are about
8 litres of fuel left in the tank. You should fill up as soon as possible
⇒ page 252 .
If this warning symbol lights up al though the fuel tank is sufficiently
filled, there is a malfunction in the fuel tank system. The display will
also show the driver message Tank system malfunction ! Contact
workshop . Please contact a qualified workshop.
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Lights and vision67
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Note
•
Check that the washer fluid reservoir is full before starting a long
journey. Filling the reservoir ⇒ page 267.
•
Worn or dirty wiper blades can cause smearing on the glass
which can also impair the effectiveness of the rain sensor. Please
check the wiper blades regularly.
Applies to vehicles: with headlight washersHeadlight washer systemThe headlight washer system only operates when the lights
are switched on.
– Move the automatic wash and wipe lever to position ⇒page 65, fig. 67.The headlight washer system is always activated the first time you
operate the automatic wash and wipe. Subsequently, it is only acti-
vated about every five wash and wipe cycles. The headlights are
always washed if you hold th e lever for longer than about
2seconds.
The headlight washer jets come out of the bumper automatically
(under water pressure).
Clean off stubborn dirt (insects, etc.) from the lenses at regular
intervals, for instance when stopping for fuel.
To ensure that the system works properly in winter, keep the nozzle
holders free of snow and remove any ice with a de-icer spray.
Service position
Use the service position to change the wiper blades.You can set the wipers to the service position on the sound
system or MMI*.
– If the wiper blades are not frozen to the windscreen,
move the windscreen wiper lever to the "off" position
⇒page 65, fig. 67.
– Select: Function selector button > Windscreen
wipers > Service position ⇒ fig. 68.•
on - the wiper blades can only be replaced when the wiper arms
are in the service position ⇒ fig. 69. If you only work on the wipers
A5
Fig. 68 Display: Wind-
screen wipersFig. 69 Service posi-
tion
A0
CAR
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Intelligent technology
224
WARNING
You should switch off the ESP only if your driving ability and traffic
conditions allow you to do so safely. Please note that, when the
ASR and ESP are switched off, the driven wheels may start to spin,
causing the vehicle to lose grip, in particular on slippery or wet
roads - danger of skidding!
Note
The ASR and ESP cannot be switched off when the adaptive cruise
control (ACC)* is on.BrakesNew brake pads
New brake pads do not give full braking effect for the first 400 km,
they must first be “bedded in”. However, you can compensate for
the slightly reduced braking effect by applying more pressure on
the brake pedal. Avoid placing a heavy load on the brakes during the
running-in period.
We ar
The rate of wear on the brake pads depends a great deal on how you
drive and the conditions in which the vehicle is operated. Negative
factors are, for instance, city tra ffic, frequent short trips or hard
driving with abrupt starts and stops.
Wet roads; road salt
When you are driving at a speed higher than 80 km/h and have the
windscreen wipers switched on the brake pads are very briefly
brought into contact with the brak e discs. This automatic process
which goes unnoticed by the driver is carried out at regular intervals
and is intended to improve braking response in wet conditions. In certain conditions, such as in heavy rain, or after washing the car
or driving through water, the full braking effect can be delayed by
moisture (or in winter by ice) on the discs and brake pads. The
brakes should be “dried” by pressing the pedal to restore full
braking effect.
The effectiveness of the brakes can also be temporarily reduced if
the car is driven for some distance without using the brakes when
there is a lot of salt on the road in
winter. The layer of salt that accu-
mulates on the discs and pads can be removed with a few cautious
brake applications.
Corrosion
There may be a tendency for dirt to build up on the brake pads and
corrosion to form on the discs if the car is used infrequently, or if
you only drive low mileages without using the brakes very much.
If the brakes are not used frequently, or if corrosion has formed on
the discs, it is advisable to clean off the pads and discs by braking
firmly a few times from a moderately high speed ⇒.
Faults in the brake system
If the brake pedal travel should ever increase suddenly, this may
mean that one of the two brake circuits has failed. Drive immedi-
ately to the nearest qualified workshop and have the fault rectified.
On the way to the dealer, be prepared to use more pressure on the
brake pedal and allow for longer stopping distances.
Low brake fluid level
Malfunctions can occur in the brake system if the brake fluid level is
too low. The brake fluid level is monitored electronically.
Brake servo
The brake servo amplifies the pressure you apply to the brake pedal.
It only works when the engine is running.
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Checking and topping up fluids
254Checking and topping up fluidsBonnetReleasing the bonnet
The bonnet is released from inside the vehicle.– Open the driver's door.
– Pull the lever under the dash board in the direction indi-
cated (arrow) ⇒fig. 250.The bonnet springs out of its lock.
Opening the bonnetBefore opening the bonnet make sure that the windscreen
wiper arms are not lifted away from the glass. Otherwise the
paint may get damaged.
– Lift the bonnet slightly ⇒.
– Press the release catch under the bonnet upwards ⇒fig. 251. This will release the arrester hook.
– Open the bonnet.The bonnet is held open by two gas-filled struts.
WARNING
To avoid the risk of being scalded, never open the bonnet if you see
steam or coolant escaping from the engine compartment. Wait
until no steam or coolant can be seen before opening the bonnet.
Fig. 250 Detail of foot-
well on driver's side:
Release lever
Fig. 251 Release catch
under the bonnet
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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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