2009 AUDI S4 CABRIOLET power steering fluid

Airbag system . . . . . . . . . . . . . . . . . 168 Trailer to\Ning . . . . . . . . . . . . . . . . . . 224
Important things to know . . . . . . . 168 Driv ing with a trailer . . . . . . . . . . . . 224
Front airbags . . . . . . . . . . . . . . . . . . 172 Trailer towing tips . . . . . . . . . . . . . . 226
Monitoring the Advanced Airbag
System . . . . . . . . . . . . . . . . . . . . . . .
179
Knee airbags . . . . . . . . . . . . . . . . . . 184
Side a irbags . . . . . . . • . . . . . . . . . . . 187
Child Safety . . . . . . . . . . . . . . . . . . . . 190
Impor tant things to know . ..... .
Child safety seats ............. .
Insta lling a chi ld safety seat .... . 190
195
200
Add it ional Information ....... .. . 203 Vehicle care . . . . . . . . . . . . . . . 229
Lower anchorages and tethe r for
children (LA TCH) . .. ... ... ... ... .
205 Cleaning and protection . . . . . . . 230
~----
t
Vehicle operation .... ... . 211
212
212
2 12
215
Intelligent
technology ... ... ... .
Notice about data recorded by
ve hicle contro l modules .. ..... .
Electronic Stabilization Program
(ESPJ . .... ... ......... ... ... .. .
B rak ing ..... ... .... .... ... ... .
Servotronic® -advanced power
steering system ............... .
Driving with your quattro® ..... .
Driving and environment .... . . 217
2
18
2 19
The first 1,000 miles (1,500 km) and
afterwards . . . . . . . . . . . . . . . . . . . .
21 9
Catalytic converter . . . . . . . . . . . . .
220
Avoid damaging the ve hicle . . . . . 221
Operate your vehicle economically
and minimize pollution . . . . . . . . .
221
General information ........... .
Care of exterior ................ .
Care of inte rior ...... .... ... ... .
Fue l supply and filling your fuel
tank ........................... .
Gasoline ........... ........... .
Fuel tank ..................... .
Checking and filling .. ... ...... .
Engine hood ......... ......... .
Engine compartment ...... ... . .
Engine oil ..................... .
Engine cooling system ......... .
Brake fluid ................ ... . .
Battery . ... ... ... ............. .
W indshield /headligh t washer
rese rvoir ...................... .
Tires and \Nheels .......... .... .
Tires ..... .. ..... ... .. - . -.. • · · ·
230
230
238
244
244
245
249
249
251
252
257
260
261
266
267
267
Table of contents
Do-it-yourself service ... 289
What do I do no\N? . . . . . . . . . . . . . 290
Trunk escape ha ndle . . . . . . . . . . . . 290
Jack, tools and spare wheel . . . . . . 290
Whee l change .............. .... 293
Fuses and bulbs . . . . . . . . . . . . . . . . 300
Fus es ................. ......... 300
Bulbs .......................... 302
Emergency situations . . . . . . . . . . 304
Genera l ... .. ... .... _ .. _ ...... .. 304
Starting by pushing or towing . . . . 304
Starting with jumper cables . . . . . . 304
Use of jumpe r cables . . . . . . . . . . . . 305
Em ergency towing with commercial
tow truck ... ......... ....... .. .
Lifting vehicle ................. .
Technical data
General information 306
308
311
312
Explanation
of technical data 312
Vehic le ide ntific ation . . . . . . . . . . . . 312
Weights ........................ 313
Dimensio ns . . . . . . . . . . . . . . . . . . . . 313
~ehicle care irechnical data

& WARNING (c ont in u ed)
ext ra sa fe ty a fforded by the ABS tempt you into t ak in g ex tr a risks .
The ABS cannot overco me th e law s of ph ysics.
[ i J Tips
• If ABS is not funct ioning properly, a warning light will come on.
See
=> page 20.
• If a fau lt occurs in the ABS, the EDL is also not funct ion ing . This
is indicated by the ABS warning light.
Brake assistant
T he brake assistant is designed to achieve the optimum
braking effect.
The brake assistant helps to increase the effective braking power
and thus to achieve a shorter stopping distance . If the driver
presses the brake pedal very quick ly, the brake assistant automati ­
cally boosts the braking force to the maximum level, up to the point
where the anti -lock brake function (ABS) intervenes to stop the
wheels from locking. You should then keep the brake pedal pressed until the vehicle has braked to the required speed. The brake assis­
tant switches itself off as soon as you re lease the brake peda l.
The brake assistant will not be operative if there is a malfunction in
the ABS .
& WARNING
Please remembe r that the accident risk always in cre a se s if you
dri ve to o fa st, e spe cially in cor ner s o r on a slipp ery road , or if you
follow th e vehicle ahead of you too clos ely. An increased a ccident
ri sk ca nnot be comp en sa ted even b y the brake assista nt , s o
alwa ys maintain a safe spe ed . •
Controls and equip­ ment Safety first Vehicle operation
Int
ellig ent tec hnol ogy
Servotronic® -advanced power
steering system
The power steering systems uses the power of the
running engine to allow precise steering with little effort.
The advanced Servotronic ® power steering system senses the road
speed and electronically adjusts power assistance to provide
comfortab le and safe steering response exactly matched to the
vehicle speed.
Power steering will not work if the engine is off. As a result, the
steering whee l wil l be hard to turn .
The power steering fluid level is checked during the schedu led
maintenance services.
0 Note
If there is an electronic ma lfunction, servotronic will still function
like a conventional power steer ing system, providing a constant
steering support force that is no longer proportionate to the vehicle
speed. This is most noticeable when tu rning the steering whee l at
low speeds (for examp le when parking), -more effort wil l be
requi red than usual.
• Be aware of the different than usual steering response and
adjust you r steering force accordingly .
• Have the problem checked and set right by an Audi dealer as
soon as possible .
[ i J Tips
• When the engi ne is running, never hold the steering whee l
turned all the way to the right or to the left for longer than 15
seconds. The power steering pu mp will overheat the hydraulic fluid
if you keep holding the steering wheel turned a ll the way. This is
likely to damage the power stee ring system.
~
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! •