2008 AUDI A5 fuel pressure

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 242.
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 228.
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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Lights and vision 64
Note•
Check that the washer fluid reservoir is full before starting a long
journey. Filling the reservoir ⇒page 242.
•
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. 64.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.
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 62, fig. 64.
– Select: Function selector button > Windscreen
wipers > Service position ⇒fig. 65.•
on - the wiper blades can only be replaced when the wiper arms
are in the service position ⇒fig. 66. If you only work on the wipers
A5
Fig. 65 MMI display:
Windscreen wipersFig. 66 Service posi-
tion
A0
CAR
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Your vehicle and the environment207
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data 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 243 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 %.
Avoid carrying unneccessary loads
Every kilo of extra weight will increase the fuel consumption, so it is
worth checking the luggage compartment occasionally to make
sure that no unnecessary loads are being transported.
A roof carrier is often left in place for the sake of convenience, even
when it is no longer needed. At a speed of 100-120 km/h your car will
use about 12 % more fuel as a result of the extra wind resistance
caused by the roof carrier - even when it is empty.
Save electrical energy
The engine drives the alternator to generate electricity. This means
that fuel consumption rises when more power is required for elec-
trical equipment. Switch off electrical equipment when it is not
needed. Electrical equipment which uses a lot of electricity includes
the blower (at a high setting), the rear window heating and the seat
heating*.
Environmental compatibilityEnvironmental protection is a top priority in the design, choice of
materials and production of your new Audi.Design measures for economical recycling
•
Joints and connections designed for ease of dismantling
•
Modular construction to facilitate dismantling
•
Increased use of single-grade materials
•
Plastic parts and elastomers are labelled in accordance with ISO
1043, ISO 11469 and ISO 1629
Choice of materials
•
Nearly all materials used can be recycled
•
Similar types of plastics grouped together for easy recycling
•
Recycled materials used in manufacture
•
Reduced vapour emissions from plastics
•
CFC-free refrigerant in air conditioner
Compliance with the laws prohibiting the use of: Cadmium,
asbestos, lead, mercury and chrome VI.
Manufacturing methods
•
Using recycling material for manufacturing plastic parts
•
Solvent-free cavity sealing
•
Solvent-free wax for protecting the vehicles in transit
•
Solvent-free adhesives
•
No CFCs used in production
•
Surplus materials used extensively for energy conversion and
building materials
•
Overall water consumption reduced
•
Heat recovery systems
•
Water-soluble paint
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Checking and topping up fluids231
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.
•
Put the gear lever in neutral or selector in P.
•
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.
•
Vehicles with automatic gearbox: Never open the throttle inad-
vertently (for instance by hand from the engine compartment) if a
gear is engaged while the vehicle is stationary with the engine
running. The vehicle could otherwise start moving immediately
and possibly cause an accident.
•
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.
WARNING (continued)
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Wheels and tyres243
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Wheels 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. 231 Open driver's
door (LHD vehicle) with
sticker listing tyre
inflation pressures
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Wheels and tyres 244
– 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 243, fig. 231.
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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Index305
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data Speed warning . . . . . . . . . . . . . . . . . . . . 28
Yellow symbols . . . . . . . . . . . . . . . . . . . 34
Driver messages . . . . . . . . . . . . . . . . . . . . . 30
Driving abroad . . . . . . . . . . . . . . . . . . . . . . 205
Headlights . . . . . . . . . . . . . . . . . . . . . . 205
Unleaded fuel . . . . . . . . . . . . . . . . . . . . 205
Driving away from a standstill . . . . . . . . . 122
Driving away when towing a trailer . . . . 123
Driving safety . . . . . . . . . . . . . . . . . . . . . . 163
Driving time . . . . . . . . . . . . . . . . . . . . . . . . . 25
Dust filter
Deluxe automatic air conditioner . . . . 93
Deluxe automatic air conditioner plus . .
101
DVD player . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Dynamic gear control program . . . . . . . . 133
EEasy-entry function . . . . . . . . . . . . . . . . 71, 73
Economical driving . . . . . . . . . . . . . . . . . . 206
EDL
SeeElectronic differential lock . . . . . . . 18
Electric seat adjustment
SeeSeat adjustment . . . . . . . . . . . . . . . 72
Electric windows . . . . . . . . . . . . . . . . . . . . . 50
Central locking system . . . . . . . . . . . . . 50
Controls . . . . . . . . . . . . . . . . . . . . . . . . . 50
Convenience open/close function . . . . 50
Malfunctions . . . . . . . . . . . . . . . . . . . . . 51
Settings . . . . . . . . . . . . . . . . . . . . . . . . . 51
Electrical accessories
SeeElectrical socket . . . . . . . . . . . . . . . 88Electrical socket . . . . . . . . . . . . . . . . . . 87, 88
Electro-mechanical parking brake . . . . . . 124
Auto release function . . . . . . . . . . . . . 122
Driving away from a standstill . . . . . . 122
Driving away when towing a trailer . . 123
Emergency braking function . . . . . . . 123
Malfunction . . . . . . . . . . . . . . . . . . . . . 123
Operation . . . . . . . . . . . . . . . . . . . . . . . 121
Parking . . . . . . . . . . . . . . . . . . . . . . . . . 122
Releasing and applying . . . . . . . . . . . . 121
Warning lamp . . . . . . . . . . . . . . . . . . 18, 19
Electronic differential lock
How the system works . . . . . . . . . . . . 199
Warning lamp . . . . . . . . . . . . . . . . . . . . . 18
Electronic immobiliser . . . . . . . . . . . . . . . . 14
Electronic stabilisation program
How the system works . . . . . . . . . . . . 196
Warning lamp . . . . . . . . . . . . . . . . . . . . . 16
Emergency braking function . . . . . . . . . . 123
Emergency key . . . . . . . . . . . . . . . . . . . . . . 41
Emergency release
Ignition key . . . . . . . . . . . . . . . . . . . . . . . 41
Emission control systems
Catalytic converter . . . . . . . . . . . . . . . . 205
Diesel particulate filter . . . . . . . . . . . . 205
Emissions . . . . . . . . . . . . . . . . . . . . . . . . . . 293
Engine compartment
Safety notes . . . . . . . . . . . . . . . . . . . . . 231
Engine compartment layout . . . . . . . . . . 232
Engine data
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 295Engine hood
SeeBonnet . . . . . . . . . . . . . . . . . . . . . . 230
Engine management
(EPC) warning lamp . . . . . . . . . . . . . . . . 15
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 233
Checking oil level . . . . . . . . . . . . . . . . . 234
Consumption . . . . . . . . . . . . . . . . . . . . 234
LongLife Service . . . . . . . . . . . . . . . . . . 233
Topping up . . . . . . . . . . . . . . . . . . . . . . 234
See alsoPerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 295
Engine oil capacity
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 295
Engine oil pressure
Warning lamp . . . . . . . . . . . . . . . . . . . . . 33
Engine oil sensor
Malfunction . . . . . . . . . . . . . . . . . . . . . . 37
Environmental compatibility . . . . . . . . . . 207
Environmental tips
Filling the tank . . . . . . . . . . . . . . . . . . . 228
Heated rear window . . . . . . . . . . . 98, 107
Leaks . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
Roof carrier . . . . . . . . . . . . . . . . . . . . . . . 85
EPC
SeeEngine management . . . . . . . . . . . 15
ESP
SeeElectronic stabilisation program . . 16
Ethanol fuel . . . . . . . . . . . . . . . . . . . . . . . . 227
Exterior mirrors . . . . . . . . . . . . . . . . . . . . . . 67
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Index 306FFastening rings . . . . . . . . . . . . . . . . . . 78, 169
Filling the tank . . . . . . . . . . . . . . . . . . . . . 228
Releasing the tank flap manually . . . 229
Fire extinguisher . . . . . . . . . . . . . . . . . . . . 255
First-aid kit . . . . . . . . . . . . . . . . . . . . . . . . 254
Floor mats . . . . . . . . . . . . . . . . . . . . . 167, 168
Fog lights . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
Foreign countries
SeeDriving abroad . . . . . . . . . . . . . . . 205
Four-wheel drive . . . . . . . . . . . . . . . . . . . . 201
Front passenger
SeeSitting position . . . . . . . . . . . . . . . 165
Fuel
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . 227
Capacity . . . . . . . . . . . . . . . . . . . . . . . . 293
Consumption . . . . . . . . . . . . . . . . . . . . 293
Current fuel consumption . . . . . . . . . . 25
Diesel . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Ethanol . . . . . . . . . . . . . . . . . . . . . . . . . 227
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . 19
Fuel level low . . . . . . . . . . . . . . . . . . . . . 36
Petrol . . . . . . . . . . . . . . . . . . . . . . . . . . 227
Saving fuel . . . . . . . . . . . . . . . . . . . . . . 206
Fuel consumption . . . . . . . . . . . . . . . . . . . 293
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Fuel range . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Fuel tank flap . . . . . . . . . . . . . . . . . . . . . . 228
Fuse, changing . . . . . . . . . . . . . . . . . . . . . 272
GGarage door opener . . . . . . . . . . . . . . . . . 154
Gear-change indicator . . . . . . . . . . . . . . . . 21
Generator
SeeAlternator . . . . . . . . . . . . . . . . . . . . 31
Glove box . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Glow plug system
Indicator lamp . . . . . . . . . . . . . . . . . . . . 16HHandbrake
SeeElectro-mechanical parking brake . . .
121
Hazard warning lights . . . . . . . . . . . . . . . . 58
Indicator lamp . . . . . . . . . . . . . . . . . . . . 17
Head restraints
Front seats . . . . . . . . . . . . . . . . . . . . . . . 76
Rear seats . . . . . . . . . . . . . . . . . . . . . . . 76
Headlight flasher . . . . . . . . . . . . . . . . . . . . 59
Headlight range control . . . . . . . . . . . . . . . 56
Malfunction . . . . . . . . . . . . . . . . . . . . . . 37
Headlights . . . . . . . . . . . . . . . . . . . . . . . . . . 54
adaptive light . . . . . . . . . . . . . . . . . . . . . 58
Changing dip settings . . . . . . . . . . . . 205
Headlight range control . . . . . . . . . . . . 56
Washer system . . . . . . . . . . . . . . . . . . . 64
Heated
Exterior mirrors . . . . . . . . . . . . . . . . . . . 67
Front seats (deluxe automatic air
conditioner) . . . . . . . . . . . . . . . . . . . . 115
Rear seats . . . . . . . . . . . . . . . . . . . . . . 115Rear window . . . . . . . . . . . . . . . . . 98, 107
Washer jets . . . . . . . . . . . . . . . . . . . . . . 62
Heated rear window . . . . . . . . . . . . . . 98, 107
Heating
Deluxe automatic air conditioner . . . . 93
Deluxe automatic air conditioner plus . . .
101
HomeLink . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Horn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
IIgnition key
Emergency release . . . . . . . . . . . . . . . . 41
Safety interlock . . . . . . . . . . . . . . . . . . 116
Ignition lock . . . . . . . . . . . . . . . . . . . . . . . . 116
Malfunction . . . . . . . . . . . . . . . . . . . 34, 37
Immobiliser . . . . . . . . . . . . . . . . . . . . . . 14, 39
Indicator lamps . . . . . . . . . . . . . . . . . . . . . . 15
Cruise control system . . . . . . . . . . . . . . 17
Glow plug system . . . . . . . . . . . . . . . . . 16
Main beam headlights . . . . . . . . . . . . . 17
Overview . . . . . . . . . . . . . . . . . . . . . . . . . 15
Trailer turn signals . . . . . . . . . . . . . . . . 17
Turn signals . . . . . . . . . . . . . . . . . . . . . . 17
Inflation pressures (tyres) . . . . . . . . . . . . 243
Inspection intervals . . . . . . . . . . . . . . . . . . 23
Instrument cluster . . . . . . . . . . . . . . . . . . . 11
Instrument lighting . . . . . . . . . . . . . . . . . . . 57
Interior lights
Dimming . . . . . . . . . . . . . . . . . . . . . . . . . 60
Front . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
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