2008 AUDI S5 fuel pressure

Downloaded from www.Manualslib.com manuals search engine Driver information system 36Brake 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 whether 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 lights, 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 231.
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 217.
If this warning symbol lights up although 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.
Applies to vehicles: with battery power warning systemBattery power

If battery power drops to a level at which you may encounter prob-
lems when starting the engine, the display will show the symbol

and the driver message Low battery charge: Battery will be charged
while driving.
Please bear in mind that the starting ability of the engine may be
impaired while this message is shown.
Message comes on and goes out again
If the message appears in the display after the ignition is switched
on or while driving, and goes out again after a period of time, the
battery has been charged up again sufficiently while the vehicle was
being driven.
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Downloaded from www.Manualslib.com manuals search engine Lights and vision63
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data To reduce the sensitivity level of the rain sensor move control
⇒page 62, fig. 63 to the left. To increase the sensitivity level of the
rain sensor move the control to the right.
If you have selected a high sensitivity level for the rain sensor the
windscreen wipers will react sooner to any moisture on the wind-
screen. The wiper intervals in the intermittent wipe setting are also
varied automatically according to the road speed (in addition to the
sensitivity setting).
WARNING
•
Poor visibility can cause accidents. Always ensure that the
wiper blades are in good condition ⇒page 64, “Changing wiper
blades”.
•
The rain sensor is only intended to assist the driver. The driver
is still obliged to manually operate the windscreen wipers as
required depending on visibility.
•
Do not use water-repellent coatings on the windscreen. In bad
visibility conditions such as light rain, low sun or when driving at
night these coatings can cause increased dazzle, which is a
serious safety hazard. Such coatings can also cause the wiper
blades to judder.Caution
•
In icy conditions, always check that the wiper blades are not
frozen to the glass before using the wiper for the first time. If you
switch on the wipers when the wiper blades are frozen to the glass,
this could damage both the wiper blades and the wiper motor.
•
Make sure you switch off the windscreen wiper system (lever in
position "0") before you use an automatic car wash. This will avoid
inadvertent triggering of the wipers and possible damage to the
wiper system.
Note
•
Check that the washer fluid reservoir is full before starting a long
journey. Filling the reservoir ⇒page 231.
•
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 62, fig. 63.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 the lever for longer than about
2 seconds.
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.
AA
A5
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Downloaded from www.Manualslib.com manuals search engine Your vehicle and the environment 196How to improve economy and minimise pollutionFuel economy, environmental impact and wear on the engine,
brakes and tyres depend largely on the way you drive the vehicle. By
adopting an economical driving style and anticipating the traffic
situation ahead, you can reduce fuel consumption by 10-15%. The
following section gives you some tips on lessening the impact on
the environment and reducing your operating costs at the same
time.
Anticipate well in advance
A car uses most fuel when accelerating. If you anticipate hazards
and speed changes well in advance, you will need to brake less and
thus accelerate less. Wherever possible, let the car slow down grad-
ually with a gear engaged, for instance when you can see that the
next traffic lights are red. This takes advantage of the engine
braking effect, reducing wear on the brakes and tyres. Emissions
and fuel consumption will drop to zero due to the overrun fuel cut-
off.
Change gear early to save fuel
An effective way of saving fuel is to change up quickly through the
gears. Running the engine at high rpm in the lower gears uses an
unnecessary amount of fuel.
Manual gearbox: Shift up to second gear as soon as possible. If
possible, we recommend shifting up to the next gear at approx.
2,000 rpm.
Automatic gearbox: Press the accelerator slowly and avoid using
the “kick-down” feature.
Avoid driving at high speed
Avoid travelling at top speed. Fuel consumption, exhaust emissions
and noise levels all increase very rapidly at higher speeds. Driving at
moderate speeds will help to save fuel.Do not let the engine idle for longer than necessary
It is worthwhile switching off the engine when waiting in a traffic
jam, at level crossings or at traffic lights with a long red phase. The
fuel saved after only 30 - 40 seconds is greater than the amount of
fuel needed to restart the engine.
The engine takes a very long time to warm up when it is running at
idling speed. Mechanical wear and pollutant emissions are also
especially high during this initial warm-up phase. It is therefore best
to drive off immediately after starting the engine. Avoid running the
engine at high speed.
Regular servicing
Regular servicing can establish a basis for good fuel economy
before you start driving. A well-serviced engine gives you the
benefit of improved fuel efficiency as well as maximum reliability
and an enhanced resale value. A badly tuned engine can consume
up to ten percent more fuel than necessary.
Avoid short trips
The engine and emission control system need to reach their proper
working temperature in order to minimise fuel consumption and
emissions.
A cold engine uses disproportionately more fuel. The engine only
reaches its working temperature after about four kilometres, when
fuel consumption will return to a normal level. This is the reason
why we recommend avoiding short trips wherever possible.
Maintain the correct tyre pressures
Always make sure the tyres are inflated to the correct pressures
⇒page 232 to save fuel. If the tyre pressures are just 0.5 bar too low,
this can increase the fuel consumption by as much as 5 %. Due to
the greater rolling resistance, under-inflation also increases tyre
wear and impairs handling.
Do not use winter tyres all through the year; they will increase fuel
consumption by up to 10 %.
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Downloaded from www.Manualslib.com manuals search engine Checking and topping up fluids221
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Working on components in the engine compartment
Extra caution is necessary when working on components
in the engine compartment.Always be aware of the danger of injury and scalding as well as the
risk of accident or fire when working in the engine compartment
(e.g. when checking and refilling fluids). Always observe the warn-
ings listed below and follow all normal safety precautions. The
engine compartment of any motor vehicle is a potentially
hazardous area. ⇒.
WARNING
•
Switch off the engine.
•
Remove the ignition key.
•
Apply the parking brake.
•
Move the gear lever into neutral.
•
Wait for the engine to cool down.
•
Keep children away from engine compartment.
•
Never spill fluids on hot engine components. These fluids can
cause a fire (e.g. radiator anti-freeze).
•
Take care not to cause short circuits in the electrical system,
especially when working on the battery.
•
Do not touch the radiator fan when the engine is hot. The fan
may start running suddenly.
•
Do not unscrew the cap on the expansion tank when the engine
is hot. The cooling system is under pressure.
•
Protect face, hands and arms by covering the cap with a large,
thick rag to protect against escaping coolant and steam.
•
If any tests have to be performed with the engine running,
there is an extra safety risk from the rotating parts, such as the
drive belts, alternator and radiator fan, etc., and from the high-
voltage ignition system.
•
Observe the following additional warnings if work on the fuel
system or the electrical system is necessary:
−Always disconnect the battery.
−Do not smoke.
−Never work near naked flames.
−Always keep an approved fire extinguisher immediately
available.Caution
When topping up fluids make sure the correct fluid is put into the
correct filler opening. This can otherwise cause serious malfunc-
tions or engine damage.
For the sake of the environment
Inspect the ground underneath your vehicle regularly so that any
leaks are detected at an early stage. If you find oil spots or other
fluids, have your vehicle inspected by a qualified workshop.
Note
On right-hand drive vehicles* some of the containers/ reservoirs
mentioned below are located on the other side of the engine
compartment.Closing the bonnet– To close the bonnet, pull it down to overcome the spring
pressure.
– Then let it drop into the catches; do not press down ⇒.
WARNING (continued)
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Downloaded from www.Manualslib.com manuals search engine Wheels and tyres 232Wheels and tyresWheelsGeneral notes–When driving with new tyres, be especially careful during
the first 500 km.
– If you have to drive over a kerb or similar obstacle, drive
very slowly and as near as possible at a right angle to the
kerb.
– Inspect the tyres regularly for damage (cuts, cracks or
blisters, etc.). Remove any foreign bodies embedded in
the treads.
– Damaged wheels and tyres must be replaced immedi-
ately.
– Keep grease, oil and fuel off the tyres.
– Replace any missing valve caps as soon as possible.
– Mark the wheels before taking them off so that they
rotate in the same direction when put back.
– When removed, the wheels or tyres should be stored in a
cool, dry and preferably dark place.New tyres
New tyres do not give maximum grip straight away and should
therefore be “run in” by driving carefully and at moderate speeds for
about the first 500 km. This will also help to make the tyres last
longer.
The tread depth of new tyres may vary, according to the type and
make of tyre and the tread pattern.Concealed damage
Damage to tyres and rims is often not readily visible. If you notice
unusual vibration or the car pulling to one side, this may indicate
that one of the tyres is damaged. Reduce speed immediately if there
is any reason to suspect that damage may have occurred. Inspect
the tyres for damage. If no external damage is visible, drive slowly
and carefully to the nearest qualified workshop and have the car
inspected.
Tyres with directional tread pattern
An arrow on the tyre sidewall indicates the direction of rotation on
tyres with directional tread. Always note the direction of rotation
indicated when mounting the wheel. This guarantees optimum grip
and helps to avoid aquaplaning, excessive noise and wear.
Tyre service life
Correct inflation pressures and sensible driving habits
will increase the service life of your tyres.– Check the tyre pressures at least once a month.
Fig. 219 Open driver's
door (LHD vehicle) with
sticker listing tyre
inflation pressures
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Downloaded from www.Manualslib.com manuals search engine Wheels and tyres233
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
– The tyre pressures should only be checked when the
tyres are cold. The slightly raised pressures of warm tyres
must not be reduced.
– The pressures must be altered to suit major changes in
the load being carried.
– Avoid fast cornering and hard acceleration.
– Inspect the tyres for irregular wear from time to time.Tyre pressure and vehicle loading
The tyre pressure must be adjusted according to the load the vehicle
is carrying. We recommend adhering to the tyre pressure specifica-
tions for a maximum load. The tyre inflation pressures are listed on
a sticker on the end face of the driver's door ⇒page 232, fig. 219.
However, if you prefer an extra-smooth ride and the vehicle is not
fully loaded, you can select the tyre pressure for a normal load (no
more than three people travelling in the vehicle). However, should
you wish to drive with a full load you must increase the tyre pressure
to the specified maximum.
Under-inflation or over-inflation will reduce the life of the tyres
considerably and also impair the car's handling. Correct inflation
pressures are very important, especially at high speeds. The pres-
sures should therefore be checked at least once a month and before
starting a journey.
Do not forget the spare wheel* when checking the tyre pressures.
Keep the spare tyre inflated to the highest pressure required for the
road wheels.
Driving habits
Fast cornering, heavy acceleration and hard braking (squealing
tyres) all increase tyre wear.Wheel balancing
The wheels on new vehicles are balanced. However, various factors
encountered in normal driving can cause them to become unbal-
anced, which results in steering vibration.
Unbalanced wheels should be rebalanced, as they otherwise cause
excessive wear on steering, suspension and tyres. A wheel must
also be rebalanced when a new tyre is fitted or if a tyre is repaired.
Incorrect wheel alignment
Incorrect wheel alignment causes excessive tyre wear, impairing the
safety of the vehicle. If you notice excessive tyre wear, contact your
Audi dealer.
WARNING
•
Always adapt the tyre pressure accordingly when the vehicle
load changes.
•
Under-inflated tyres flex more and can overheat at continuous
high speeds. This can cause tread separation and tyre blow-out,
which could result in an accident.For the sake of the environment
Under-inflated tyres will increase the fuel consumption.
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Downloaded from www.Manualslib.com manuals search engine Index287
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
EEasy-entry function . . . . . . . . . . . . . . . . . . . 71
Economical driving . . . . . . . . . . . . . . . . . . 196
EDL
SeeElectronic differential lock . . . . . . . 17
Electric seat adjustment
SeeSeat adjustment . . . . . . . . . . . . . . . 70
Electric windows . . . . . . . . . . . . . . . . . . . . . 49
Central locking system . . . . . . . . . . . . . 50
Controls . . . . . . . . . . . . . . . . . . . . . . . . . 49
Convenience open/close function . . . . 50
Malfunctions . . . . . . . . . . . . . . . . . . . . . 51
Settings . . . . . . . . . . . . . . . . . . . . . . . . . 51
Electrical accessories
SeeElectrical socket . . . . . . . . . . . . . . . 86
Electrical socket . . . . . . . . . . . . . . . . . . 85, 86
Electro-mechanical parking brake . . . . . . 122
Auto release function . . . . . . . . . . . . . 120
Driving away from a standstill . . . . . . 120
Driving away when towing a trailer . . 121
Emergency braking function . . . . . . . 121
Malfunction . . . . . . . . . . . . . . . . . . . . . 121
Operation . . . . . . . . . . . . . . . . . . . . . . . 119
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 120
Releasing and applying . . . . . . . . . . . 119
Warning lamp . . . . . . . . . . . . . . . . . . . . 18
Electronic differential lock
How the system works . . . . . . . . . . . . 189
Warning lamp . . . . . . . . . . . . . . . . . . . . 17
Electronic immobiliser . . . . . . . . . . . . . . . . 14Electronic stabilisation program
How the system works . . . . . . . . . . . . 186
Warning lamp . . . . . . . . . . . . . . . . . . . . . 16
Emergency braking function . . . . . . . . . . 121
Emergency key . . . . . . . . . . . . . . . . . . . . . . 40
Emergency release
Ignition key . . . . . . . . . . . . . . . . . . . . . . . 41
Emission control systems
Catalytic converter . . . . . . . . . . . . . . . . 195
Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . 279
Engine compartment
Safety notes . . . . . . . . . . . . . . . . . . . . . 221
Engine compartment layout . . . . . . . . . . 222
Engine data
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 281
Engine hood
SeeBonnet . . . . . . . . . . . . . . . . . . . . . . 220
Engine management
(EPC) warning lamp . . . . . . . . . . . . . . . . 15
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Checking oil level . . . . . . . . . . . . . . . . . 223
Consumption . . . . . . . . . . . . . . . . . . . . 223
LongLife Service . . . . . . . . . . . . . . . . . . 222
Topping up . . . . . . . . . . . . . . . . . . . . . . 224
See alsoPerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 281
Engine oil capacity
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 281
Engine oil pressure
Warning lamp . . . . . . . . . . . . . . . . . . . . . 33Engine oil sensor
Malfunction . . . . . . . . . . . . . . . . . . . . . . 37
Environmental compatibility . . . . . . . . . . 197
Environmental tips
Filling the tank . . . . . . . . . . . . . . . . . . . 217
Heated rear window . . . . . . . . . . . 96, 104
Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Roof carrier . . . . . . . . . . . . . . . . . . . . . . . 83
EPC
SeeEngine management . . . . . . . . . . . 15
ESP
SeeElectronic stabilisation program . . 16
Ethanol fuel . . . . . . . . . . . . . . . . . . . . . . . . 217
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 66
FFastening rings . . . . . . . . . . . . . . . . . . 76, 159
Filling the tank . . . . . . . . . . . . . . . . . . . . . . 217
Releasing the tank flap manually . . . . 219
Fire extinguisher . . . . . . . . . . . . . . . . . . . . 245
First-aid kit . . . . . . . . . . . . . . . . . . . . . . . . . 244
Floor mats . . . . . . . . . . . . . . . . . . . . . 157, 158
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Foreign countries
SeeDriving abroad . . . . . . . . . . . . . . . . 195
Four-wheel drive . . . . . . . . . . . . . . . . . . . . 191
Front passenger
SeeSitting position . . . . . . . . . . . . . . . 155
Fuel
Capacity . . . . . . . . . . . . . . . . . . . . . . . . 279
Consumption . . . . . . . . . . . . . . . . . . . . 279
Current fuel consumption . . . . . . . . . . . 25
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Downloaded from www.Manualslib.com manuals search engine Index 288
Ethanol . . . . . . . . . . . . . . . . . . . . . . . . . 217
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . 19
Fuel level low . . . . . . . . . . . . . . . . . . . . . 36
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . 217
Saving fuel . . . . . . . . . . . . . . . . . . . . . . 196
Fuel consumption . . . . . . . . . . . . . . . . . . . 279
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Fuel range . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Fuel tank flap . . . . . . . . . . . . . . . . . . . . . . 217
Fuse, changing . . . . . . . . . . . . . . . . . . . . . 261
GGarage door opener . . . . . . . . . . . . . . . . . 145
Gear-change indicator . . . . . . . . . . . . . . . . 21
Generator
SeeAlternator . . . . . . . . . . . . . . . . . . . . 31
Glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . 89HHandbrake
SeeElectro-mechanical parking brake . . .
119
Hazard warning lights . . . . . . . . . . . . . . . . 58
Indicator lamp . . . . . . . . . . . . . . . . . . . . 16
Head restraints
Front seats . . . . . . . . . . . . . . . . . . . . . . . 74
Rear seats . . . . . . . . . . . . . . . . . . . . . . . 74
Headlight flasher . . . . . . . . . . . . . . . . . . . . 58
Headlight range control
Malfunction . . . . . . . . . . . . . . . . . . . . . . 37Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . 54
adaptive light . . . . . . . . . . . . . . . . . . . . . 57
Changing dip settings . . . . . . . . . . . . 195
Washer system . . . . . . . . . . . . . . . . . . . 63
Heated
Exterior mirrors . . . . . . . . . . . . . . . . . . . 66
Front seats (deluxe automatic air
conditioner) . . . . . . . . . . . . . . . . . . . . 112
Rear seats . . . . . . . . . . . . . . . . . . . . . . 113
Rear window . . . . . . . . . . . . . . . . . 96, 104
Washer jets . . . . . . . . . . . . . . . . . . . . . . 62
Heated rear window . . . . . . . . . . . . . . 96, 104
Heating
Deluxe automatic air conditioner . . . . 91
Deluxe automatic air conditioner plus 99
HomeLink . . . . . . . . . . . . . . . . . . . . . . . . . . 145
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
IIgnition key
Emergency release . . . . . . . . . . . . . . . . 41
Safety interlock . . . . . . . . . . . . . . . . . . 114
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . 114
Malfunction . . . . . . . . . . . . . . . . . . . 34, 37
Immobiliser . . . . . . . . . . . . . . . . . . . . . . 14, 38
Indicator lamps . . . . . . . . . . . . . . . . . . . . . . 15
Cruise control system . . . . . . . . . . . . . . 17
Main beam headlights . . . . . . . . . . . . . 17
Overview . . . . . . . . . . . . . . . . . . . . . . . . . 15
Trailer turn signals . . . . . . . . . . . . . . . . 17
Turn signals . . . . . . . . . . . . . . . . . . . . . . 16
Inflation pressures (tyres) . . . . . . . . . . . . 232Inspection intervals . . . . . . . . . . . . . . . . . . 23
Instrument cluster . . . . . . . . . . . . . . . . . . . 11
Instrument lighting . . . . . . . . . . . . . . . . . . . 56
Interior lights
Dimming . . . . . . . . . . . . . . . . . . . . . . . . . 59
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Interior mirrors
SeeMirrors . . . . . . . . . . . . . . . . . . . . . . . 65
Interior monitor . . . . . . . . . . . . . . . . . . . . . . 47
Intermittent wipe . . . . . . . . . . . . . . . . . . . . 62
Rain sensor . . . . . . . . . . . . . . . . . . . . . . 62
ISOFIX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 181
JJack . . . . . . . . . . . . . . . . . . . . . . . . . . 245, 252
Jacking points . . . . . . . . . . . . . . . . . . . . . . 252
Jump-starting . . . . . . . . . . . . . . . . . . . . . . 255KKey-operated switch for front passenger's
airbag . . . . . . . . . . . . . . . . . . . . . . . . . 173
Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
Emergency key . . . . . . . . . . . . . . . . . . . . 40
Replacement keys . . . . . . . . . . . . . . . . . 38
Replacing the battery . . . . . . . . . . . . . . 39LLeather care
Alcantara . . . . . . . . . . . . . . . . . . . . . . . 216
Natural leather . . . . . . . . . . . . . . . . . . . 215
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