2009 AUDI S4 CABRIOLET snow chains

Driver inf orma tion d ispl ay
Your tire change is incomplete if you do not access the Driver Infor­
mation System menu, and select and confirm
Wh eel ch ange. You
must do this each time to change a tire . The procedure can take up
to 20 minutes driving time. During this time, the sensors are read ­
justing to the new wheel/tire combination, and the new pressures are stored.
During the learning phase, the tire pressure monitoring system is
not available. •
Applies to vehic les: with tire pressure monitor ing system
Malfunctions
A malfunction can have various causes.
Fig . 35 Dis pl ay:
Syst em m alfu nct ion
If the 'warning light in the instrument cluster flashes for approxi ­
mately one minute and then remains continuously illuminated and
additional ly the --, -=> fig. 35 symbol appears in the display, the
tire pressure monitoring system is not available. This can have
various causes.
• If the message appears a t the end of the learning phase, the
system cannot recognize the wheels installed on the vehicle . This
can be because one or more wheels without a wheel sensor were
installed.
• A wheel sensor or other component may have failed. •
The system has detected more than 4 wheels in the vehicle, for
example while driving beneath another car with tire pressure moni ­
toring system.
• A tire was changed but the=>
page 45, "Changing a wheel"
procedure was not activated =>
page 45.
• Audi replacement parts were not used.
• If snow chains are being used, system function can be compro ­
m ised due to the shielding properties of the chains.
• The tire pressure monitoring system may not be ava ilable
because of a radio malfunction.
• Transmi tters with the same frequency, such as radio head ­
phones in the vehicle or radio equipment, can cause a temporary
disruption of the system through excessive electromagnetic fields.
• Try to find the cause of the interference, and then perform the
=>
page 45 , "Changing a wheel" procedure one more time . If this not
e liminate the prob lem, contact your authorized Audi dealer for
assistance .
• Do not use commercial ly availab le tire sealants . Otherwise, the
e lec trical components of the tire pressure monitoring system will
no longer work properly and the sensor for the tire pressure moni­
toring system wi ll have to be rep laced by a qua lified workshop .•

On the road ------------------------------.J
Keep the sensors in the rear bumper clean and free from ice so that
the acoustic park assist system can function properly.
& WARNING
• Sensors have dead spaces in which objects cannot be
detected . Be especially alert for small children and animals, since
they are not always detected by the sensors.
• The acoustic park assist system is not a substitute for the
driver's own caution and alertness. Ultimate responsibility always
remains with the driver during parking and similar maneuvers .
Always watch where you are driving.
0 Note
• Remember that low obstacles for which a warning has already
been issued may "dive" below the system's sensing zone if the
vehicle is being backed up closer. In this case, the warning sound
shutting off does
not indicate that you have cleared the obstacle .
Instead, impact is imminent.
• Objects such as trailer hitches, barrier chains, narrow posts or
fences covered by a thin layer of paint may not always be detected
by the system . They can still damage your vehicle without a
warning.
[ i] Tips
Keep the sensors in the rear bumper clean and free of snow and ice
so that the acoustic parking assist system can function properly. •
Controls and equip ­
ment
Cruise control
General information
The cruise control system allows you to maintain a
constant speed.
The cruise control system allows you to maintain a constant driving
speed when driving faster than 18 mph (30 km/h) -to the extent this
is possible with the given engine power and braking characteristics .
This allows you to take your foot off the "gas" and rest it, especially
on long trips.
The indicator light (U.S. models :
CRUISE , Canadian models:•(') ) in the
instrument cluster illuminates when the system is on.
& WARNING
• To help keep the vehicle under control, do not use the cruise
control system when driving on winding or slippery roads (as
caused by heavy rain or loose gravel on the road surface), or in
heavy or varying traffic.
• Only use the cruise control when traffic, road and weather
conditions allow you to drive at a steady speed.
[ i] Tips
The cruise control cannot maintain a constant speed when driving
downhill. The vehicle will accelerate under its own weight. Down­
shift to a lower gear or use the brakes to slow down .•

The direction in which the driver wishes to travel is determined with
the aid of the steering angle and vehicle speed and is continua lly
compared with the actual behavior of the vehicle. If the two do not
match, -for example, when the vehicle starts hydrop laning on a
wet road -, ESP will automatical ly brake the appropriate wheel to
correct the problem.
The veh icle is then stabi lized by the forces act ing on the whee l
during braking. If the vehicle is oversteering (rear tends to skid out
of the turn), the brakes are mainly app lied on the whee l that is on
the outside of the curve. In the case of a vehicle that is understeering
(tendency to s lide out of the curve), the brakes are applied at the
rear wheel that is on the inside of the curve . An acoustic signal indi­
cates when ESP brake application cuts in =>
&.
The system operates across the entire speed range in combinat ion
with the ABS system => page 216 . If the Anti -Lock Brake System
(ABS) malfunctions, the ESP wi ll be out of act ion as well.
Activa tion
When you turn on the engine, ESP w ill automatica lly be activated
and will perform a self -test .
The system can be activated o r deactivated by pressing the butto n
=> page 212, fig . 190 . The warning light comes on when the system
is switched off .
Normally, the ESP should a lways be on, however, it may be advanta­
geous to turn off the system in certain specia l cases when some
degree o f wheel spin is desired such as :
• when driving with snow chains
• when driving in deep snow or on a loose surface (to allow the
whee ls to dig in to reach firm ground)
• when trying to "rock" the vehicle free whe n it has become stuck .
The system shou ld be reactivated once you are no longer in such
situations.
Both , the ABS and EDL systems are still functioning even if the ESP
is switched off .
Controls and equip­
ment Safety first Vehicle operation
Int
ellig ent tec hnol ogy
& WARNING
The Ele ctron ic Stab ilization Program is neve rth ele ss s ubje ct to th e
law s of phy sic s. It is p art icularly important to pay at tent ion to thi s
f ac t on wet and slipper y ro ad s. It i s therefore important th at yo u
alway s adapt your driving to the condition of the road and traffic
c onditio ns. Do not allo w the in crea sed safety prov ided by t he Ele c­
tronic Stabilization Program sy stem to lull you into a ccepting
addition al safety ri sk s.
• Plea se note that when ESP i s deactivated , the drive wheel s can
s pin on icy and slippery ro ads a nd the vehi cle can break away -
d anger of skidding ! C
E lectronic differential lock CEDL)
The electronic differential lock monitors the rotational
speed of the drive wheels.
Gener al notes
The electronic differential lock (EDU helps the car to start moving,
accelerate and c limb a gradien t on surfaces providing poor or
a lmost no grip . Without EDL, this would be difficult , if not impos ­
sible.
How the syst em works
The EDL operates automat ical ly . It monito rs the rotationa l speed of
the drive whee ls on an axle with the he lp of the ABS sensors
=> page 216 . If a noticeable difference in rotational speed between
the drive wheels on one axle is de tected (e.g. on slippery grou nd on
one side), the spinning wheel is braked, thereby transferring power
to the other drive wheel or wheels (a ll -whee l drive) . This is done up
to a speed of about 60 mph ( 100 km/h). Noises from the brake
system signal that wheel spin is being control led.
~
Vehicle care Do-it-yourself service Technical data

___ ln_ te_ ll..,,ig ..,_ e_ n_t _t_ e_ c_ h _ n_o _ l_o _,.g= y,_ __________________________________________ _
• If the power steering system should fail entirely, or if the engine
is not running (for example, while being towed), you will still be able
to steer the vehicle . However, considerably more effort will be
required to do so.
• If the power steering system should have a leak, or is not func­
tioning properly, contact your authorized Audi dealer immediately.
• The power steering system requires a specially formulated
hydraulic fluid. The power steering reservoir is the one located most
forward on the left side of the engine compartment=> page 251. The
correct fluid level in the reservoir is important for proper func­
tioning of the power steering. •
Driving with your quattro®
With All Wheel Drive, all four wheels are driven.
General information
With All Wheel Drive, power is distributed to all four wheels. This
happens automatically depending on your driving style and the
road conditions at the time. See also=> page 213, "Electronic differ­
ential lock (EDU".
Winter tires
When driving in the winter, your vehicle with All Wheel Drive has an
advantage, even with regular tires. In winter road conditions it may
be advisable to mount winter tires (or all-season tires) for improved
driveability and braking: these tires must be mounted on
all four
wheels.
See also => page 284, "Winter tires".
Snow chains
Where snow chains are mandatory on certain roads, this normally
also applies to vehicles with all -wheel drive => page 285, "Snow
chains".
Replacing wheels/tires
Vehicles with All Wheel Drive must always have tires of the same
size. Also avoid tires with different tread depths. For details see
page => page 279, "New tires and replacing tires and wheels".
Off-Road driving?
Your Audi does not have enough ground clearance to be used as an
off-road vehicle. It is therefore best to avoid rough tracks and
uneven terrain as much as possible. Also refer to=> page 221.
& WARNING
Always adjust your driving to road and traffic conditions. Do not
let the extra safety afforded by the all-wheel drive tempt you into
taking extra risks.
• Although the quattro®all-wheel drive is very effective, always
remember that braking capacity is limited by tire traction. You
should therefore not drive at excessive speeds on icy or slippery
road surfaces.
• On wet road surfaces, be careful not to drive too fast because
the front wheels could begin to slide on top of the water (hydro­ planing). If this should occur, you will have no warning from a
sudden increase in engine speed as with a front-wheel drive
vehicle. Always drive at speeds which are adjusted to the road conditions -risk of crash! •

__________________________________________________ T_ ir_e_ s_ a_ n_d _ w_ h_ e_ e_l_s _ ...... 911
•
& WARNING (conti nued )
personal injuries . Have worn or damaged tires repl aced immed i­
ately.
• Winter tires have ma ximum speed rat ing that may be lower
than your vehi cle' s maximum speed.
• Never drive faster than the speed for which the winter or other
tire s installed on your vehicle are rated.
& WARNING
Always adjust your driving to the road and traffi c cond it ions .
Never let the good acceleration of the winter tires and all -wheel
drive tempt you into taking e xtr a risks . Alway s remember :
• When braking, an all -wheel drive vehicle handles in the same
way as a front drive vehi cle.
• Drive carefully and reduce your speed on icy and slippery road s,
even winter tires cannot help under black ice condit ions .
<£> For the sake of the environment
Use summer tires when weather conditions permit. They are
qu ieter, d o not wear as qu ick ly and reduce fue l con sump tion.•
Snow chains
Snow chains may be fitted only to t he fr ont w heels, and only to
certain tire sizes . Ask your authorized Aud i dealer on which tire
s izes sn ow chains ca n be used .
I f you are going to use snow chains, then you must instal l them on
the front wheels at least.
Th e snow chains must have low- prof ile l inks and must n ot be t hicke r
than 0 .53 inch (13 .5 mm), including the lock. Remove whee
l center covers and trim discs before putting snow
chains o n yo ur vehicle =>
(D. For safe ty reaso ns cover caps must
then be fitted over the wheel bolts. These are available from autho ­
r iz ed Audi dealer s.
& WARNING
Using the wrong snow chain s for your vehicle o r installing them
incorre ctly can increase the risk of loss of control leading to
s erious personal injury .
• Snow chains are available in d iffe rent sizes . Always make sure
to follow the instructions provided by the snow chain manufac ­
turer .
• When driving with snow chains never drive faster than the
speed permitted for your specific snow chains .
• Always observe local regulations.
(}) Note
• Remove snow c hai ns be fore d riving on roads not covered wit h
snow to avoid damaging tires and wearing the snow cha ins down
unnec essarily .
• Snow chains, which come into direct contact with the wheel rim,
can scratc h or damage it. Therefore, make sure tha t the snow cha ins
are suitably covered. Check the position of the snow chains after
dr iv in g a few yards an d cor rect if necessary . Fo llow the i nstruct ions
from the snow cha in manufacturer when do ing so.
[ i ] Tips
Where snow chains are mandatory on certain roads, this normally
a lso a pplie s to veh ic le s wi th A ll Wheel D rive .•
Ve hic le care

11111.___W_ h_ a_ t_d_ o_ l _d _o_ n_ o_ w_ ? ______________________________________________ _
Taking out the spare wheel
- Raise the floor panel at the plastic handle.
- Securely engage the handle in the luggage compartment
seal as illustrated to keep the floor panel up.
- Unscrew the knurled retainer bolt in the wheel center
==> page 291, fig. 215. Turn it counter-clockwise.
- Take out the spare wheel.
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
Storing the replaced wheel
-Place the replaced wheel inside the spare wheel well in
the luggage compartment.
- Tighten the knurled retaining screw clockwise to secure
the wheel in place.
- Disengage and lower the floor panel before you close the
luggage compartment lid again.
& WARNING
Loose items in the passenger compartment can cause serious
personal injury during hard braking or in an accident .
• Never store the spare wheel or jack and tools in the passenger
compartment.
• Always store all jacking equipment, tools, and the spare wheel
in the luggage compartment.
• Tighten the knurled retaining screw for the spare wheel
securely.
[ i] Tips
Check the inflation pressure of the spare tire periodically to keep the
tire ready for use. •
Applies to vehic les: w ith a space -saving spare wheel
Space-saving spare wheel
The compact spare wheel is only intended to be used for
a short time.
Using the space-saving spare wheel
The space -saving spare wheel is only intended for emergencies
until you can reach a repair shop. Replace it as quickly as possible
with a normal wheel.
There are some restrictions on the use of the space -saving spare
wheel
=> ,&. . The space-saving spare wheel has been developed
especially for your type of vehicle. It must not be exchanged for the
space-saving spare wheel from another type of vehicle.
Normal summer or winter tires must not be fitted on the space ­
saving spare wheel rim.
Snow chains
For technical reasons, the use of snow chains on the space-saving
spare wheel
not permitted .
If you do have to drive with snow chains and have a tire failure on a
front wheel, install the space-saving spare wheel in place of a rear
wheel. Install the snow chains on the rear wheel and use it to
replace the defective front wheel.
& WARNING
• After installing the space-saving spare wheel, the tire pressure
must be checked as soon as possible. The tire pressure must be
adapted to the load condition of the vehicle according to the tire .,_

Alphabetical index -
-------------=----
Rollover bars
Lowering ... .. .... ....... ...... .. 157
See also Automatic rollover pro tection
system ... .. .... .... .... ... .... 156
Roof, e lectric ... .... .... .... ... .... .. 61
s
SAFE ...... ... .. .... .... ... .... .... . 15
Sa fe driv ing habits . ......... ....... . 146
Safety belt position .. ............. ... 164
Safety belts worn by pregnant women ..
165
Safety belt pretensioner Service and disposal . ..... .. ...... 167
Safety belt warning light .... .... .. 21,159
Sa fety be lts . . . . . . . . . . . . . . . . . . . . . . . . 163
cleaning ... .. ... ... .. ... ..... ... 242
Dange r to passengers who do not wear a
safety belt . . . . . . . . . . . . . . . . . . . . . 161
Fastening ... .... .... .... ... .... . 163
Improper ly worn . .... .... ...... .. 166
Not worn . ...... ........ ......... 161
pre tensioners ... .... .. ... .... .... 166
Safety bel t position .. .... .... .... . 164
Safety instructions ... ..... .. ... .. 162
Securing child safety seats . .... ... 200
Special considerations for pregnant
wom en . .... .... .... ... .... .... 165
Un fast ening . .... ... ..... .. .. ... . 165
Warning /indicator ligh t ..... ..... .. 159
Why YOU MUST wear them ........ 159
Worn properly .. ... ...... ... .... . 162
Safety compliance sticker .. ...... .... 312
Controls and equip­
ment Safety first
Safety equipment
.... ....... .. .. .... 146 Occupants .... .... .... .... ..... .. 148
Safety features for occupant restraint and Rear passengers
... .... ...... .... . 150
pro tection . .... ...... .... ... .. . 146
Seats
Safe ty instructions Manual adjustment controls ........ 93
Eng in e compartm ent .. ... .... .... . 250 Number of seats .. .... .... .... .... 159
for booster seats . ...... .... ...... 198
Selector lever ............ .. . ..... ... 127
for using child safe ty s eats . .... .... 193
Selector lever multitronic ® ......... .. 133
for using convertible child sea ts .... 196
for using infant seats . ........... . 195
for using safety be lts . ...... .... ... 162
Monitoring the Advanced Airbag System
181 Service and
disposal
Safety belt pretensioner .. ..... .. .. 167
Service interval display .... ... .... ... .. 17
Servotron ic
Safety lock Ignition key, Automatic transmission 119
Seat adjustment Driver seat ... ...... ... .. .... ... .. 92
D river's seat memory . .......... .. 101
Front passenger seat . .... .... .... .. 93
Head restraints ................ 98, 151
Lumbar support . ...... ... .... .... . 98 Power steering
...... ............. 217
Setting Date display ............ .. ... ... .. 14
Digital clock ... .. .... .... .... .. .. . 14
Shift buttons .... .... .... ... .... 131, 137
Side airbags Description ... .... .... .. . .... .... 187
How they work .... ...... .... .... . 188
Power seats ... .. ........ .... .... . 96 Ski sack
... .............. ........... 103
Safety guidelines ... ... ....... .... . 92 Snow chains .
.... .... .... ... .... .... 285
Seat cushion extension ..... ... .... 100 Sockets
........... .... ... .. .... 105, 106
Seat belts Soft
top ... .. .... ....... .... .... ..... 61
Why YOU MUST wear them .... ... . 159 Care and cleaning
........ .... .. . . 233
Seat memory ....... ... .... .... .... . 101 Manual
operation ... ...... .... .. .. . 68
Seat position Sound system
Incorrect seat position .... .... .... 151 Replacing
.... .... .... ... .... .... 319
Seating capacity . ... .... .... .... .... 159 Sound system display
S eating position D
river information display . .... ..... 25
Driver .... .... ...... .... ... .. .... 148 Space
-saving spare wheel ... . ........ 292
Front passenger ......... ......... 149 Spare wheel ..
...... .... ... .... .... . 291
How to adjust the front sea ts .. .... . 149
Speed rat ing letter code ... ...... .... . 281
Vehicle operation Vehicle care Do-it-yourself service Technical data

11111 Alphabetical index
---=----------------------------------
Speed warning 1 ...... .... ... ... .... . 34
Speed warning 2 .................. ... 34
Speed warning system ............... 35
Speedometer . . . . . . . . . . . . . . . . . . . . . . . 15
Startingtheengine . ...... ...... 119,120
What should I do if the engine does not
start? . . . . . . . . . . . . . . . . . . . . . . . . . 120
Steel wheels . . . . . . . . . . . . . . . . . . . . . . . 236
Steering ...... ............... ... ... 118
Steering wheel Locking the steering .............. 119
Steering wheel column Adjusting ... .. .... .... ...... .... 118
Steps for determining correct load limit 276
Stopping the engine .. ....... ....... 120
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . 107
Compartment in the front seats .... 109
Compartments in the door trims ... 109
Cupholder in the center conso le .... 104
Glove compartment ... .... ...... . 107
Ski sack . . . . . . . . . . . . . . . . . . . . . . . . 103
Small objects .. .... ....... .... ... 108
Sun visors . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Switches Emergency flasher . . . . . . . . . . . . . . . . 82
Rear window defogger . . . . . . . . . . . . 116
Symbols Red ............................. 30
Yellow ........................... 32
T
Tachometer . . . . . . . . . . . . . . . . . . . . . . . . . 13 Tank
flap
Unlocking the fuel filler flap by hand 248
Technical modifications ... ...... ... .. 319
Temperature Climate controls ...... .... ....... 112
Setting for the driver's and front passen­
ger side . . . . . . . . . . . . . . . . . . . . . . . 112
The first 1,000 miles (1,500 km) and
afterwards ... ... .... ...... ..... 219
Tilt sensors . . . . . . . . . . . . . . . . . . . . . . . . . 58
Tips for the environment
Using the air conditioner only when
necessary . . . . . . . . . . . . . . . . . . . . . 116
tiptronic® . . . . . . . . . . . . . . . . . . . . . . . . . 126
Automatic Shift Lock (ASU ...... ... 128
Driving ...... .... ... .. .... .... .. 126
Dynamic shift program ....... .. ... 129
Fail -safe mode . . . . . . . . . . . . . . . . . . . 131
Kick-down . . . . . . . . . . . . . . . . . . . . . . . 129
Manual shift program ............ . 130
Selector lever . . . . . . . . . . . . . . . . . . . . 127
Tire pressure ... .......... .......... 274
Tire pressure monitoring system ... .... 41
Initialize wheels ................... 45
learning process ........... ....... 43
loss of air pressure .. .... ... .. . 20, 43
Malfunctions . .... ....... ..... ... . 46
Sensors . . . . . . . . . . . . . . . . . . . . . . . . 281
Storing tire pressures ...... ...... .. 43
Tires and wheels ....... .... ...... 281
Valves .......................... 281
Tire service life ... ...... .... ... .. ... 278 Tires
... .. .... .... .. . ... ... .... ... . 267
Replacing .. .... ....... .... ...... 281
Service life ...................... 278
speed rat ing letter code .... .... ... 281
Tire manufactur ing date ........... 281
Tire spec ifications ................ 280
Tread depth .... .... ........ .... . 278
Uniform tire quality grading ... .... 283
Winter tires .. ...... ......... .... 284
Tires and vehicle load limits ..... ..... 275
Tires and wheels Checking tire pressure .......... .. 274
Cold tire inflation pressure ........ 271
Dimensions .... .... ..... ...... .. 279
General notes ......... ... ...... .. 267
Glossary of tire and loading terminology .
268
New tires and whee ls ............. 279
Replacing .. .... ....... .......... 280
Snow chains .. .... .... ........ ... 285
Tire pressure monitoring system ... 281
Tires and vehicle load limits ....... 275
Wheel bolts ........ ....... .... .. 286
Winter tires
Tires/Wheels 284
Low aspect ratio tires ............. 286
Tir e pressure monitoring system .... 20
Torn or frayed safety belts ... .. .... ... 162
Touch-up paint
Towing Front eyelet 235
307
Rear eyelet .... ........ ..... .. ... 307
Tow truck procedures ...... ....... 306