inflation pressure AUDI S5 2008 8T / 1.G Owners Manual

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 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 Self-help251
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
– Tighten the wheel bolts firmly i n d i a g o n a l s e qu e n c e w i t h
the box spanner ⇒page 251.
–Fit the hub cap back on.After changing a wheel
What you must do after changing a wheel.– Place the wheel with the defective tyre in the spare wheel
well and secure it.
– Put the tools and the jack* back in the luggage compart-
ment.
–The inflation pressure of the newly fitted spare tyre must
be checked as soon as possible.
–Have the tightening torque of the wheel bolts checked as
soon as possible with a torque wrench. The correct tight-
ening torque is 120 Nm.
– Have the flat tyre replaced as quickly as possible.
Note•
If you notice that the wheel bolts are corroded and difficult to
turn when changing a wheel, they must be replaced before having
the tightening torque checked.
•
In the interest of safety, drive at moderate speeds until the tight-
ening torque of the wheel bolts has been checked.
Hub caps
The hub caps must be removed for access to the wheel
bolts.Removing
– Insert the hook (provided in the vehicle's tool kit) in the
hole in the hub cap.
–Pull off the hub cap ⇒fig. 229.Loosening and tightening the wheel bolts
The wheel bolts must be loosened before raising the
vehicle.
Fig. 229 Changing a
wheel: Removing a hub
capFig. 230 Changing a
wheel: Loosening
wheel bolts
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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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Downloaded from www.Manualslib.com manuals search engine Index 292Tyre repair kit . . . . . . . . . . . . . . . . . . . . . . 245
Tyre Mobility System . . . . . . . . . . . . . 247
Tyres
Inflation pressures . . . . . . . . . . . . . . . 232
Tread wear indicators . . . . . . . . . . . . . 234
Tyre service life . . . . . . . . . . . . . . . . . . 232UUniversal transmitter . . . . . . . . . . . . . . . . 145
Unleaded fuel . . . . . . . . . . . . . . . . . . . . . . 217
Unlocking . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Central locking system . . . . . . . . . . . . . 45VVehicle data sticker . . . . . . . . . . . . . . . . . 279
Vehicle identification data . . . . . . . . . . . . 279
Vehicle identification number . . . . . . . . . 279
Ventilation
Deluxe automatic air conditioner . . . . 91
Deluxe automatic air conditioner plus 99
Ventilation slots . . . . . . . . . . . . . . . . . . . . 158WWarning lamps . . . . . . . . . . . . . . . . . . . . . . 15
Airbag system . . . . . . . . . . . . . . . . . . . . 16
Anti-lock brake system . . . . . . . . . . . . . 17
Brake system . . . . . . . . . . . . . . . . . . . . . 19
Electro-mechanical parking brake . . . 18
Electronic stabilisation program . . . . . 16
Emission control system . . . . . . . . . . . 17Engine management . . . . . . . . . . . . . . 15
Seat belt . . . . . . . . . . . . . . . . . . . . . . . . . 17
Warning triangle . . . . . . . . . . . . . . . . . . . . 244
Washer fluid level low . . . . . . . . . . . . . . . . 36
Washing the vehicle
By hand . . . . . . . . . . . . . . . . . . . . . . . . 210
Car wash . . . . . . . . . . . . . . . . . . . . . . . . 210
With high-pressure cleaner . . . . . . . . 210
Waxing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 211
Weights
SeePerformance, weights and
dimensions . . . . . . . . . . . . . . . . . . . . 281
Wheel bolts . . . . . . . . . . . . . . . . . . . . . . . . 236
Wheel imbalance . . . . . . . . . . . . . . . . . . . 232
Wheels . . . . . . . . . . . . . . . . . . . . . . . . 212, 232
Changing . . . . . . . . . . . . . . . . . . . . . . . 250
Changing wheels round . . . . . . . . . . . 234
Window heating . . . . . . . . . . . . . . . . . 96, 104
Windows
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . 212
De-icing . . . . . . . . . . . . . . . . . . . . . . . . 212
Malfunctions . . . . . . . . . . . . . . . . . . . . . 51
Windows (electric)
SeeElectric windows . . . . . . . . . . . . . . 49
Windscreen washer fluid . . . . . . . . . . . . . 231
Windscreen wiper and washer system . . 62
Windscreen wipers . . . . . . . . . . . . . . . . . . . 62
Changing blades . . . . . . . . . . . . . . . . . . 64
Defective . . . . . . . . . . . . . . . . . . . . . . . . 37
Service position . . . . . . . . . . . . . . . . . . . 64
Winter conditions
Battery . . . . . . . . . . . . . . . . . . . . . . . . . 228
Care of vehicle . . . . . . . . . . . . . . . . . . . 210Cooling system . . . . . . . . . . . . . . . . . . 224
Defrosting windows . . . . . . . . . . . 96, 104
De-icing windows . . . . . . . . . . . . . . . . 212
Seat heating (deluxe automatic air
conditioner) . . . . . . . . . . . . . . . . . . . . 112
Seat heating for rear seats . . . . . . . . . 113
Snow chains . . . . . . . . . . . . . . . . . . . . . 237
Tyres . . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Windscreen washer . . . . . . . . . . . . . . . 231
Winter tyres . . . . . . . . . . . . . . . . . . . . . . . . 236
Wiper blades
SeeWindscreen wipers . . . . . . . . . . . . . 64
XXenon lights . . . . . . . . . . . . . . . . . . . . . . . 195
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