2008 AUDI A5 COUPE fuel

ForewordThank you for choosing the Audi A5.
The new Audi A5 combines the latest technology with numerous features for your comfort and
convenience. To help you get the best out of these features in everyday use, we recommend that
you read this Manual carefully so you can quickl y become familiar with your vehicle in detail.
As well as information on how to use the controls and equipment, the Owner's Manual contains
important notes on care and maintenance. These are relevant to your safety and will help preserve
your car's value. The Manu al also offers useful driving tips an d advice, together with some sugges-
tions on how to drive your car with minimum impact on the environment.
In addition to this Owner's Manual, the Service Wa llet also includes the Service Schedule for your
vehicle. This booklet contains important informat ion on Audi service requirements and lists the
vehicle's fuel consumption figures. The Service Wallet also includes operating manuals for
optional on-board systems such as the radio, na vigation and telephone. We recommend that you
keep the Service Wallet in the car at all times.
Should you have any further questi ons regarding your car or if you suspect that your owner's liter-
ature is not complete, please contact your Audi deal er or importer. They are always glad to answer
your queries and note any suggestions you may have.
We wish you safe and enjoyabl e motoring with your Audi A5.
AUDI AG
document_0900452a8179700c.book Seite 1 Do nnerstag, 22. März 2007 10:19 10
--4
-r
-+ +-

Contents3
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Airbag system
. . . . . . . . . . . . . . . . .
Description of airbag system . . . .
Front airbags . . . . . . . . . . . . . . . . . .
Side airbags . . . . . . . . . . . . . . . . . . .
Head-protection airbags
(sideguard) . . . . . . . . . . . . . . . . . . . .
Deactivating the front passenger's
airbag via the key-operated switch
Child safety
. . . . . . . . . . . . . . . . . . . .
Points to remember if children are
travelling in the car . . . . . . . . . . . . .
Child safety seats . . . . . . . . . . . . . .
Fitting child safety seats . . . . . . . .
Driving tips
. . . . . . . . . . . . . . . .
Intelligent technology
. . . . . . . . . .
Electronic stabilisation program
(ESP) . . . . . . . . . . . . . . . . . . . . . . . . . .
Brakes . . . . . . . . . . . . . . . . . . . . . . . .
Power steering (servotronic) . . . . .
Four-wheel drive (quattro®) . . . . . .
Power management . . . . . . . . . . . .
Your vehicle and the
environment
. . . . . . . . . . . . . . . . . . .
Running in . . . . . . . . . . . . . . . . . . . .
Emission control systems . . . . . . .
Driving abroad . . . . . . . . . . . . . . . . .
How to improve economy and
minimise pollution . . . . . . . . . . . . .
Environmental compatibility . . . . .
Towing a trailer
. . . . . . . . . . . . . . . .
Driving the vehicle with a trailer or
caravan . . . . . . . . . . . . . . . . . . . . . . .
Removable towing bracket . . . . . .
General maintenance
. .
Care of vehicle and cleaning
. . .
General notes . . . . . . . . . . . . . . . . . .
Care of exterior . . . . . . . . . . . . . . . . .
Care of interior . . . . . . . . . . . . . . . . .
Fuel and filling the tank
. . . . . . . .
Petrol . . . . . . . . . . . . . . . . . . . . . . . . .
Diesel . . . . . . . . . . . . . . . . . . . . . . . . .
Filling the tank . . . . . . . . . . . . . . . . .
Checking and topping up fluidsBonnet . . . . . . . . . . . . . . . . . . . . . . . .
Engine compartment layout . . . . .
Engine oil . . . . . . . . . . . . . . . . . . . . . .
Cooling system . . . . . . . . . . . . . . . . .
Brake fluid . . . . . . . . . . . . . . . . . . . . .
Battery . . . . . . . . . . . . . . . . . . . . . . . .
Windscreen washer . . . . . . . . . . . . . Wheels and tyres
. . . . . . . . . . . . . . .
Wheels . . . . . . . . . . . . . . . . . . . . . . . .
Accessories and modifications
to the vehicle
. . . . . . . . . . . . . . . . . . .
Accessories and replacement
parts . . . . . . . . . . . . . . . . . . . . . . . . . .
Modifications . . . . . . . . . . . . . . . . . .
Radio transmitters and business
equipment . . . . . . . . . . . . . . . . . . . . .
Self-help
. . . . . . . . . . . . . . . . . . . . .
Self-help
. . . . . . . . . . . . . . . . . . . . . . . .
Warning triangle . . . . . . . . . . . . . . . .
First-aid kit . . . . . . . . . . . . . . . . . . . . .
Fire extinguisher . . . . . . . . . . . . . . . .
To o l s a n d T y r e M o b i l i t y S y s t e m . . .
Compact temporary spare wheel*
Tyre repairs . . . . . . . . . . . . . . . . . . . .
Changing a wheel . . . . . . . . . . . . . .
Jump-starting . . . . . . . . . . . . . . . . . .
Tow-starting and towing away . . .
Fuses and bulbs
. . . . . . . . . . . . . . . .
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing bulbs for headlights . . .
Changing bulb for turn signals . . .
Changing bulb for side lights . . . . .
Changing bulb for front fog lights
Changing bulbs for rear lights in
side panel . . . . . . . . . . . . . . . . . . . . . .
Changing bulbs in boot lid . . . . . . .
Number plate light . . . . . . . . . . . . . .
176
176
178
180
181
183
185
185
186
189
195
196
196
199
201
201
202
205
205
205
205
206
207 208
208
211
219
220
220
220
223
227
227
227
228
230
230
232
233
235
238
239
242
243
243
250
250
250
251
253
254
254
254
255
255
256
257
260
265
267
272
272
276
278
282
282
283
284
286
288
document_0900452a8179700c.book Seite 3 Do
nnerstag, 22. März 2007 10:19 10
--4 -
-T
~: _
-~~,
- I ....._
-+ +-

Instruments and warning/indicator lamps11
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Instruments and warning/indicator lampsInstrumentsInstrument cluster overview
The instrument cluster is the driver's information centre.Fig. 2 Overview of instrument cluster
Coolant temperature gauge . . . . . . . . . . . . . . . . . . . . . .
Rev counter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warning and indicator lamps . . . . . . . . . . . . . . . . . . . . .
button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display
− Driver information system . . . . . . . . . . . . . . . . . . . . .
− Date and time display . . . . . . . . . . . . . . . . . . . . . . . . .
− Mileage recorder . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reset button for trip recorder . . . . . . . . . . . . . . . . . . . . Speedometer
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Note
•
The needles in the instrument cluster will sweep across the dials
when you switch on the ignition.
•
The instrument lighting (illumination of dials and needles) is
switched on when the ignition is on and the vehicle's lights are off.
The instrument lighting is dimmed automatically as the daylight
starts to fade. This function is intended to remind the driver to
switch on the dipped-beam headlights in good time when light
conditions become poor.
Coolant temperature gaugeThe coolant temperature gauge ⇒fig. 2 only works when the
ignition is switched on. In order to avoid possible damage to the
engine, please read the following notes for the different tempera-
ture ranges.
Engine cold
If the needle is still in the lower range of the dial, this indicates that
the engine has not yet reached operating temperature. Avoid high
engine speeds, full acceleration and heavy engine loads.
Normal temperature
In normal operation the needle will settle somewhere in the centre
of the dial once the engine has reached operating temperature. The
needle may also go further up when the engine is working hard at
high outside temperatures. This is no cause for concern provided
the warning symbol
 in the display does not start flashing.
A1
11
A2
12
A3
15
A4
SET
12
A5
20
13
14
A6
14
A7A8
19
A1
document_0900452a8179700c.book Seite 11 Donnerstag, 22. März 2007 10:19 10
--4 -
-T
[I]
•
-+ +-
D

Instruments and warning/indicator lamps
12Warning symbol in instrument cluster

If the symbol
 lights up in the display, this means that either the
coolant temperature is too high or the coolant level is too low
⇒ page 32 .
If the needle is at the top end of the dial, this means the coolant
temperature is too high. Stop the vehicle, switch off the engine and
wait for it to cool down. If the warning lamp starts flashing again
after just a short distance, contact a qualified workshop.
WARNING
•
Before opening the bonnet and checking the coolant level,
please observe the warning information on ⇒page 231, “Working
on components in the engine compartment”.
•
Never open the bonnet if you can see or hear steam or coolant
escaping from the engine compar tment; there is a risk of being
scalded. Wait until you can no lo nger see or hear escaping steam
or coolant.Caution
•
Additional lights and other accesso ries in front of the air inlet
reduce the cooling effect of the radiator. At high outside tempera-
tures and high engine loads, there is a risk of the engine over-
heating.
•
The front spoiler also ensures proper distribution of the cooling
air when the vehicle is moving. If the spoiler is damaged this can
reduce the cooling effect, which could cause the engine to overheat.
You should obtain professional assistance.
Rev counter
The rev counter indicates the number of engine revolu-
tions per minute.You should select a lower gear if the engine speed drops below
1500 rpm. The start of the red zo ne on the dial indicates the
maximum engine speed which may be used briefly when the engine
is warm and after it has been run in properly. However, it is advisable
to change up a gear or move the se lector lever to “D” (or lift your
foot off the accelerator) before the needle reaches the red zone.
Caution
Never allow the rev counter needle ⇒page 11, fig. 2 to go into
the red zone on the dial for more than a very brief period: there is a
risk of damaging the engine. The start of the red zone on the dial is
different for some engine versions.
For the sake of the environment
Changing up a gear early will help you to save fuel and minimise
engine noise.
button
This button has a number of different functions.
A2
SET
Fig. 3 Instrument
cluster: SET button
document_0900452a8179700c.book Seite 12 Donnerstag, 22. März 2007 10:19 10
--4 -
-T
&
CD
-+
CD
•
+-
•

Instruments and warning/indicator lamps19
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Electro-mechanical parking brake

This warning lamp monitors the electro-mechanical
parking brake.The warning lamp
 lights up when the parking brake is applied
with the ignition on. After the ig nition has been switched off the
lamp will stay on for about 30 seconds. The warning lamp will light
up for about 30 seconds if the parking brake is applied with the igni-
tion switched off.
The warning lamp should go out wh en the parking brake is released.
If the warning lamp flashes continuously after the parking brake has
been applied , the brake may not be strong enough to hold the
vehicle on a slope. This may be due to the brakes overheating.
Please note the following points:
•
If the gradient is too steep to park the vehicle safely, the display
will show the message Caution: Vehicle parked too steep .
•
In the event of a fault in the parking brake system the symbol

will also appear in the instrument cluster display together with the
message Parki ng b rake! You should have the fault corrected by a
qualified workshop without delay.
Brake system

The warning lamp flashes if the brake fluid level is too low
or if there is a fault in the ABS system or the parking
brake.If the warning lamp
 flashes, there is a fault in the brake system.
The symbol
 in the instrument cluster display will flash at the
same time. You can press the button to obtain a message
explaining the fault ⇒page 31 .
If a failure should occur in the ABS, the ABS warning lamp
 will
light up together with the brake warning lamp
 ⇒ .
WARNING
•
Before opening the bonnet and ch ecking the brake fluid level,
observe the warning information on ⇒page 231, “Working on
components in the engine compartment”.
•
If the brake warning lamp does not go out, or if it lights up
when driving, the brake fluid level in the reservoir is too low – this
may cause an increased accident ri sk. Stop the vehicle and do not
drive on. You should obtain professional assistance.
•
If the brake warning lamp lights up together with the ABS
warning lamp, this can mean that the control function of the ABS
is out of action. As a result the rear wheels can lock relatively
easily when braking. This could caus e the tail of the vehicle to skid
sideways. Drive carefully to the nearest qualified workshop and
have the fault rectified.
Fuel gaugeThe gauge only works when the ignition is switched on.
When the needle reaches the reserve zone, the symbol
 lights up
in the instrument cluster display ⇒page 36 together with the
message Please refuel . At this point there are still about 8 litres of
fuel left in the tank. This is your reminder to fill up soon.
The tank capacity of your vehicle is given in the Technical data
section ⇒page 293 .
Caution
Never run the tank completely dry. If there is an irregular fuel supply,
misfiring can occur. This allows unburnt fuel to enter the exhaust
system, which could cause overheating and damage the catalytic
converter.
SET
document_0900452a8179700c.book Seite 19 Donnerstag, 22. März 2007 10:19 10
--4 -
-T
---- &
•
-+ +-
•
CD
D
•

Driver information system21
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
CD and radio displayIf no priority 1 or 2 faults have been detected by the auto-check
control, the name or frequency of the current radio station and the
selected waveband will appear the upper part of the display.
When a CD is playing, the display will show the current title. If the
vehicle is equipped with a CD changer* the display will also show
the number of the CD being played (CD1 to CD6).Outside temperature display
The outside temperature is shown when the display is
activated.
At temperatures below +5°C a snow flake symbol appears next to the
temperature display. This is to warn the driver to take extra care
when there is a risk of ice on the road.
When the vehicle is stationary or travelling at very low speeds, the
temperature displayed may be slightly higher than the actual
outside temperature as a result of the heat radiated from the
engine.
The temperature units can be set to °F or °C on the MMI* or sound
system control console. The outside temperature is automatically
displayed in the units you have selected. Please refer to the Oper-
ating Manual for the MMI* or sound system.
WARNING
Do not rely on the outside temper ature display as an ice warning.
Please bear in mind that there may be patches of ice on the roads
even at outside temperatures around +5°C.Applies to vehicles: with manual gearbox and gear-change indicatorGear-change indicator
This additional indicator fu nction can help to save fuel.
Fig. 9 Display: Radio
informationFig. 10 Display:
Outside temperature
Fig. 11 Display: Gear-
change indicator
document_0900452a8179700c.book Seite 21 Donnerstag, 22. März 2007 10:19 10
--4 -
-T
-+
•
•
+-

Driver information system
22
You can deactivate the gear-change indicator on the sound
system or MMI.
Switching the gear-change indicator on and off
– Select: Function selector button > Instrument cluster > Suggested gear ⇒ fig. 12.To familiarise yourself with the gear-change indicator, we recom-
mend driving in the normal way to start with. A gear change will be
recommended if the gear you are in is not the most economical
choice for the current driving conditions. The gear you are currently
in and the recommended gear will be displayed ⇒page 21, fig. 11.•
Shifting up a gear: The suggested gear appears to the right of the
current gear when a higher gear is recommended.
•
Shifting down a gear: The suggested gear appears to the left of
the current gear when a lower gear is recommended.
Gears may ocassionally be skipped (3 > 5).
If no gear change is recommended, you are already in the most
economical gear.Note
•
The gear-change indicator is intended to help save fuel. It is not
intended to recommend the right gear for all driving situations. For example, the display may not recommend a gear change while you
are overtaking, driving up a steep gradient or towing a trailer.
•
The gear-change indicator goes out when you press the clutch
pedal.
Applies to vehicles: with on-board computerDigital speedometerThe display shows the current speed. The speed is displayed in
increments of 1 km/h.
Fig. 12 MMI display:
Switching the
suggested gear on and
off
CAR
Fig. 13 Display: Digital
speedometer
document_0900452a8179700c.book Seite 22 Donnerstag, 22. März 2007 10:19 10
--4 -
-T
•
-+ +-
•
[I)

Driver information system25
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
On-board computerApplies to vehicles: with on-board computerIntroduction
The on-board computer provides you with useful informa-
tion during a journey, including average and current fuel
consumption, average speed, fu el range and driving time.The following items of informatio n are processed by the on-board
computer and can be shown one after the other on the display in the
instrument cluster. Fuel range
The estimated fuel range is displayed in km. It shows how far the
vehicle can be driven with the amount of fuel left in the tank,
assuming the same style of driving. The fuel range is displayed in
increments of 10 km.
The fuel range is calculated on the basis of the fuel consumption
over the last 30 kilometres. The fuel range will increase accordingly
if you drive in a more economical manner.
Average fuel consumption
This mode displays the average fuel consumption since the memory
was last cancelled in litres/100 km. If required, you can use this
display to adjust your driving style to achieve the desired fuel
consumption.
Current fuel consumption
The display shows the current fuel consumption in litres/100 km. If
required, you can use this display to adjust your driving style to
achieve the desired fuel consumption.
The computer calculates the fuel consumption every 30 metres. The
display switches to l/h (litres per hour) when the vehicle is
stationary.
Average speed
This mode shows the average speed driven since the memory was
last cancelled (in km/h).
Driving time
This display shows the period of
time which has elapsed since the
memory was last cancelled.
Distance covered
This display shows the distance you have covered since the memory
was last cancelled.
Fig. 17 On-board
computer: Fuel rangeFig. 18 On-board
computer: Average fuel
consumption
document_0900452a8179700c.book Seite 25 Donnerstag, 22. März 2007 10:19 10
--4 -
-T
-+ +-