AUDI A5 2008 8T / 1.G Owners Manual
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Wheels and tyres249
Technical data For technical reasons snow chains may only be used on tyres with
certain wheel rim/tyre combinations.
Only use snow chains with fine-pitch links. The links must not
protrude more than 13.5 mm from the tyres (including tensioner).
Remove the chains when roads are free of snow. Otherwise they will
impair handling, damage the tyres and wear out very quickly.
Four-wheel drive: where snow chains are compulsory on certain
roads, this normally also applies to cars with four-wheel drive. Snow
chains may only be fitted to the front wheels (also on vehicles with
Ty r e s i z e
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Accessories and modifications to the vehicle 250Accessories and modifications to the vehicleAccessories and replacement partsAlways ask your dealer or specialist retailer for advice
before purchasing accessories and replacement parts.Your car is designed to offer a high standard of active and passive
safety. For this reason, we recommend that you ask an Audi dealer
for advice before fitting accessories or replacement parts. Audi
dealers have the latest information from the manufacturer and can
recommend accessories and replacement parts which are suitable
for your requirements. They can also answer any questions you
might have regarding official regulations.
We recommend you to use only Audi accessories and Audi Genuine
®. Audi has tested these parts and accessories for suitability,
reliability and safety. Audi dealers have the necessary experience
and facilities to ensure that the parts are installed properly.
Although the market is constantly scrutinised, Audi cannot judge or
assume responsibility for the reliability, safety and suitability of
non-genuine products - even though in some instances, these parts
may have been approved by an officially recognised technical
testing authority or accompanied by an official approval certificate.
Any retro-fitted equipment which has a direct effect on the vehicle
and/or the way it is driven (e.g. cruise control system or electroni-
cally-controlled suspension) must be approved for use in your
vehicle and bear the e mark (the European Union's approval
If any additional electrical components are fitted which do not serve
to control the vehicle itself (for instance a refrigerator box, laptop or
ventilator fan, etc.), these must bear the CE mark (manufacturer
conformity declaration in the European Union).
Never attach accessories (such as cup holders or telephone
brackets) to the surfaces covering the airbag units or the areas
around the airbags: this could cause injury if the airbag is
triggered.ModificationsModifications must always be carried out according to
our specifications.Unauthorised modifications to the electronic components or soft-
ware in the vehicle may cause malfunctioning. Due to the way the
electronic components are linked together in networks, other
systems may be affected by the faults. This can seriously impair
safety, lead to excessive wear of components, and also invalidate
the type approval for your vehicle.
You will appreciate that your Audi dealer cannot be held liable for
any damage caused by modifications and/or work performed incor-
We recommend that all work should be performed by an Audi work-
shop using Audi Genuine parts
Incorrectly performed modifications or other work on your vehicle
can lead to malfunctions and cause accidents.
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Accessories and modifications to the vehicle251
Radio transmitters and business equipmentRadio transmitters (fixed installation)
Retrofit installations of radio transmitters in the vehicle are subject
to official approval. Audi generally authorises in-vehicle installa-
tions of approved types of radio transmitters provided that:•
the aerial is installed correctly,
the aerial is not installed in the interior of the vehicle (and
screened cables are used together with non-reflective aerial trim-
the effective transmitting power does not exceed 10 Watts at the
Audi dealers and specialist retailers will be able to inform you about
options for installing and operating radio transmitters with a higher
Mobile radio transmitters
When using commercial mobile telephones or radio equipment it is
possible that they might interfere with the electronics of your
vehicle and cause malfunctions. The reasons could be:
no external aerial
external aerial incorrectly installed
transmitting power more than 10 W.
Therefore you must not operate portable mobile telephones or radio
equipment inside the vehicle without a correctly installed external
Please note also that the maximum range of the equipment can only
be achieved with an external aerial.
Retrofit installation of business or other equipment in the vehicle is
permitted, provided the equipment cannot interfere with the driver's immediate control of the vehicle. Any such equipment must
carry the CE mark. Any retrofit equipment that could influence the
driver's control of the vehicle must have a type approval for your
vehicle and must carry the e mark.
Mobile telephones or radio equipment which are operated inside
the vehicle without a correctly installed external aerial can create
excessive magnetic fields that could cause a health hazard.
Any retrofit installation of electrical or electronic equipment in
the vehicle will affect its type approval. In extreme cases this could
mean that you might lose the type approval for your vehicle.
Please refer to the mobile telephone/radio operating
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Self-help 254Self-helpApplies to vehicles: with warning triangleWarning triangleThe factory-supplied warning triangle is attached to the
inside of the boot lid.– To remove the warning triangle, push the tab in the direc-
tion indicated by the arrow ⇒fig. 234 and pull the
retainer down.The retainer on the boot lid is specifically designed to hold the
warning triangle supplied as a genuine Audi accessory. This acces-
sory is available from Audi dealers.
Applies to vehicles: with first-aid kitFirst-aid kitThe first-aid kit is accommodated in the compartment
behind the rear centre armrest.– Pull up the catch to open the storage compartment
⇒fig. 235.On vehicles with a load-through hatch*, the first-aid kit is kept in the
rear centre armrest. The centre armrest has to be folded down in
order to access the compartment.
The storage compartment will hold a maximum weight of 0.5 kg.
Before folding the centre armrest back up into the rear seat backrest
make sure the lid of the storage compartment is properly closed.
Fig. 234 Warning
triangle fitted inside
Fig. 235 Rear centre
armrest: First-aid kit
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Applies to vehicles: with fire extinguisherFire extinguisherThe factory-fitted fire extinguisher is located in the foot-
well on the front passenger's side (secured in a holder).Taking out the fire extinguisher
– Unfasten the retaining strap by pressing on the tab
marked “PRESS” ⇒fig. 236 -arrow-.
– Take the fire extinguisher out of the holder.
Securing the fire extinguisher
– Place the fire extinguisher in the holder.
– Secure the fire extinguisher with the retaining strap.
After using the fire extinguisher
– Have the fire extinguisher refilled and checked by a qual-
ified dealer or the fire service.Check how the fire extinguisher works before you need to use it. The
instructions for use are shown on the fire extinguisher.Have the fire extinguisher checked regularly (at least every two
years) by a qualified dealer or by the fire service to ensure that it will
be in working order when you need it.
When buying a new fire extinguisher, make sure it fits in the holder.
If the fire extinguisher is not secured properly it could be cata-
pulted through the vehicle during driving and braking manoeuvres
or in the event of an accident. This poses a risk of injury to occu-
The fire extinguisher must comply with legal requirements.
Observe the expiry date of the fire extinguisher. The fire extin-
guisher may not work properly after the expiry date.
Tools and Tyre Mobility SystemThe tools and the Tyre Mobility System are stored under
the floor panel in the luggage compartment.
Fig. 236 Fire extin-
guisher in footwell on
front passenger's side
Fig. 237 Luggage
Tyre Mobility System
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Self-help 256If you need the tools, the Tyre Mobility System or the jack*, you will
have to open the floor panel and take out the spare wheel*
The tool kit includes:•
A hook for removing hub caps
Pin for mounting a wheel
Screwdriver with reversible blade
Tool for changing bulbs
Interchangeable socket (Torx socket for changing bulbs)
Crank handle for jack
Adapter for anti-theft wheel bolts*
Box spanner for wheel bolts
Some of the parts listed are only fitted on certain models or are
Before stowing the jack* again, wind down the arm of the jack as far
as it will go.
Do not use the hexagonal socket in the screwdriver handle to
tighten the wheel bolts. It is not possible to tighten the bolts with
the required torque – risk of accident.
The jack supplied by the factory is only designed for changing
wheels on this model. On no account attempt to use it for lifting
heavier vehicles or other loads – risk of injury.
Never start the engine when the vehicle is on the jack - risk of
If work has to be done under the veh i cl e , e n su re t h a t i t is sa fe l y
supported on stands designed for the purpose, otherwise there is
a risk of injury.
Applies to vehicles: with compact temporary spare wheelCompact temporary spare wheel*The spare wheel is carried in the wheel well under the
floor panel in the luggage compartment. It is only
intended for temporary use over short distances.Taking out the spare wheel
– Lift the floor panel by the plastic handle ⇒fig. 238.
– Hook the handle onto the luggage compartment weath-
– Turn the centre plastic knob ⇒fig. 238 anti-clockwise.
– Take out the spare wheel.
– Unhook the floor panel before closing the boot lid.
Securing the defective wheel in the spare wheel
– Place the wheel in the spare wheel well and secure it with
the plastic knob.
– Unhook the floor panel before closing the boot lid.
Fig. 238 Spare wheel
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Technical data How to use the compact temporary spare wheel
Should you ever have a punctured tyre, the compact temporary
spare wheel is only intended for temporary use until you can reach
a workshop. The standard-size road wheel should be refitted as
soon as possible.
Please note the following restrictions when using the compact
temporary spare wheel. The compact temporary spare wheel is
designed specifically for this model. For this reason, do not use a
temporary spare from a different type of vehicle.
For technical reasons, snow chains must not be used on the
compact temporary spare wheel.
If you should have a puncture on one of the front wheels when using
snow chains, fit the compact temporary spare in place of one of the
rear wheels. You can then attach the snow chains to the wheel taken
from the rear and use this wheel to replace the punctured front
The tyre pressures must be checked and corrected as soon as
possible. The tyre pressure of the compact temporary spare wheel
must be 4.2 bar – an incorrectly inflated tyre can cause an acci-
Do not drive faster than 80 km/h - higher speeds can cause an
Avoid heavy acceleration, hard braking and fast cornering – risk
Never use two or more compact spare tyres at the same time –
risk of accident.
No other type of tyre (normal summer or winter tyres) may be
fitted on the compact temporary spare wheel.
Ty r e r e p a i r sGeneral information and safety notes
Repaired tyres are only suitable for temporary use.Your vehicle is equipped with a tyre repair kit: the Tyre Mobility
In the event of a puncture you will find the TMS, which consists of a
sealing compound and an electric compressor, located under the
floor panel in the luggage compartment.
The TMS will reliably seal tyres damaged by foreign bodies,
provided that the cuts or punctures are no larger than approx. 4 mm
It is not necessary to remove the foreign body from the tyre.
The sealing compound must not be used:•
on cuts and punctures larger than 4 mm ⇒fig. 239
if the wheel rim has been damaged
if you have been driving with very low pressure or a completely
flat tyre .
How to use the TMS is described in the section Repairing a tyre
⇒page 258 and in the instructions supplied with the tyre sealant
Fig. 239 The Tyre
Mobility System is NOT
suitable for repairing
this type of damage to
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Self-help 258The TMS can be used at outside temperatures down to – 20 °C.
After repairing a tyre please note the following points:•
Do not drive faster than 80 km/h.
Avoid heavy acceleration, hard braking and fast cornering.
Vehicle handling could be impaired.
Tyres which have been sealed using the TMS are only suitable
for temporary use. Damaged tyres must be renewed.
The TMS must NOT be used,
−on cuts and punctures larger than 4 mm
−if the wheel rim has been damaged
−if you have been driving with very low pressure or a
completely flat tyre
Seek professional assistance if the repair of a tyre puncture is
not possible with the sealing compound.
Do not allow the sealant to come into contact with your eyes,
skin or clothing.
If you do come into contact with the sealant immediately rinse
the eyes or skin affected with clean water.
Change clothing immediately if it becomes soiled with the tyre
Make sure you do not breathe in the fumes!
If any of the tyre sealant is accidentally ingested, immediately
rinse the mouth thoroughly and drink lots of water.
Do not induce vomiting. Immediately contact a doctor!
If any allergic reactions should occur get medical help immedi-
Keep the sealant away from children.
For the sake of the environment
Used bottles of sealing compound can be returned to an Audi dealer
If sealant should leak out, leave it to dry. When it has dried, you
can pull it off like a piece of foil.
Observe the expiry date stated on the sealing compound can.
Have the sealing compound exchanged by a qualified workshop.
Repairing a tyrePreparations
– If you have a flat tyre, stop the car well away from moving
– Apply the parking brake to stop the vehicle moving acci-
–Engage first gear (manual gearbox) or move selector
lever to position P (automatic gearbox).
Fig. 240 Repairing a
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