2008 AUDI TT ROADSTER power steering

Table of contents
Table of contents
Vehicle literature ........ .
About this Owner's Manual .............. ...... . .
Controls and
equipment .. .. ... . .. ... ... . .
Cockpi t ... .......... ...... ..... .
Genera l ill ustration ............. .
Instruments and
warning/indica tor lig hts ....... .
Instruments .............. ..... .
Warning/indicator lights ........ .
Driver informa tion system ..... .
Introduction ............... .... .
On-Board Diagnostic system (080)
Menu display ...... ............ .
Au to-Check Control ... ... .... .. .
Speed warn ing system . ... ..... .
Trip computer ................. .
T ire pressure monitoring system ..
Opening and closing .......... .
Keys .......................... .
Powe r lock ing system ..... ..... .
Rear lid /tr unk lid .............. . . 5 Ant
i-theft a larm system ........ .
Power w indows ... ... .... .... .
Folding top ................ ... .
Folding top ... .. ..... ...... ... .
6 W ind Deflector ........... ... .. .
E merge ncy Ope rat ion of the Fold ing
Top ........... ............ .. . .
Clear vision . ... ............ ... .
56 Cruise control . . . . . . . . . . . . . . . . . . 11 O
57 Audi magnetic ride . . . . . . . . . . . . . 112
60
Transm1ss1on . . . . . . . . . . . . . . . . . . . 113
60 Manua l transmiss ion . . . . . . . . . . . . 1 13
64 S tron ic tra nsmission . . . . . . . . . . . 1 13
64
69
Home link® . ...... .. ... ... ... .. .
Universa l remote control ....... .
121
121
Lights . . . . . . . . . . . . . . . . . . . . . . . . . 69
In ter io r lights ....... ..... ... .. .
V is ion ..................... ... .
W iper and washer system ...... .
Mirrors ..... ............... ... .
Digital compass ............... .
9 Seats and storage ......... ... .
11
1 1
1 2
12
1 6
22
22
26
27
29
37
39
41
47
47
50 55 Genera
l recommendat ions ..... .
Ad justing front seats manua lly ..
Powe r seats ..... ....... .... .. .
Lumbar support .. ............. .
Head restraints ............•...
Luggage compartment ........ .
Cup holder ... ...... ... ..... .. .
As htray ................... ... .
Cigarette lighter /socket ..... ... .
Storage ............ ....... ... .
Warm and cold ............... .
Climate controls ....... ... .• .. .
Rear window defogger
Qlil ..••.••
Heated sea ts .. ..... ..... ..... .
On the road . ... .. .......... ... .
Steering ...................... .
Ign it ion lock an d ignition sw itch .
Starting and stopping the engine
Park ing brake ................. .
Acoustic pa rking system .... ... .
77
77
78
82
85
87
87
88
89
91
92
93
94
94
95
95
98
98
103
104
105
105
106
107
108
109
Safety first ............... . .
Driving Safely . ...... ... ...... . .
General notes .. .... ....... ... . .
Prope r occupan t seating pos it ions
D river and passenger side footwe ll
Peda l a rea .. .. .... .... ... ..... .
Stow ing luggage .............. .
Report ing s afety defects ...... . .
Safety belts ................... .
General notes ................. .
Why safe ty be lts? .............. .
Safety belts ................... .
Safety belt tensioners .......... .
Airbag system ... ... ...... .... . .
Important things to know ...... .
F . b ron t air ags ........ ....... .. .
Monito ring the Advanced Airbag
System ....................... . 127
128
128
130
13
4
13 4
135
136
137
137
138
141
14 4
146
146
150
157

Cockpit
General illustration
G)
0
©
©
©
©
0
©
®
@
@
@
@
@
@
@
@
Power window switches
Door handle
Pow er lo cking switc h
Adjus te r contro l fo r ou tsid e mirro rs ...... .... ... . .
Air outlets ..... .. . ..... .... .... .. . .... .. . ..... .
Light switch .. ...... .... ... .... .... .... .... ... .
Turn signa l and high beam
Multifunc tion steering wheel with:
- Horn
- Driver's a irbag .... .... ... .... .... .... .... ... .
- Shift b uttons ... .. .... ... .... .... .... .... ... .
Instr um en t cluster . ...... ... .... .. ...... .. .. ... .
Switches for
- Windshield wipe r/wash er ... .... .. ....... .. ... .
- Menu d isplay ...... ... .. .. .... .... .... ... ... .
- Trip computer ..... .. .... .... ...... ....... .. .
Depending on options : Radio or navigation sys tem
G love compa rtmen t (loc kab le) ... .. .. .. ... .... ... .
Front passenger 's airbag .. ...... .. . .... .. .. .... .
Rear window defogger switch .... ..... .. .... .... .
Climate controls ..... .. .... .... ..... .. ... ... .. .
Ashtray wi th cigare tte lighter ....... ............ .
Gear sh ift l ever or s elector lever (automatic transmis -
sion) 57
53
83
102
69
76
150
119
1 2
78
27
39
96
150
10 3
98
94
- Manual transm ission . . . . . . . . . . . . . . . . . . . . . . . . . 113
- S tronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 115
@ Switches for
- Aud i magnetic r ide
Controls and equip ­
ment
112
Co ckpit
- Electronic Stabilization Program (ESP) . .... .. ... .
- Emerge ncy flasher ... .. .. .. .... .... .... .. . ... .
- Retractab le r ear spoiler .... ...... .... .... .... . .
- Tire pressure mon itor ing system ..... .... .. . ... .
@ Sw itc h f or wind deflector .... .. ..... .. .... ... ... .
@) Switch for automatic folding top ..... .. .... ... ... .
@ Cup hold er ....... .. .. .. .... .... ....... ....... .
@ Parking brak e le ver ... .... ..... .. .... .... ..... . .
@ S teeri ng lock/igniti on/sta rter sw itch (in t he s teer ing
whee l column) ... .... ... ... ... .. .... .... ...... .
@ Adjus tab le steering co lu m n .. ...... ..... ... ... .. .
@ Cruise contro l .... ... .... .... .... .... .... ... ... .
@ Hood release ... .. .. .. ..... .. .... .... .... ...... .
@ Data Link Connect or (DLC) for On Boa rd Diag nostics
(OBD Ill .... ... .. ...... .... ... .... ... .. ... .... .
@ Daytim e running l ights (DRU* .... .... .... .... ... .
@ Instrumen t lighting ...... .... .... .... ... .... ... .
@ Switc hes f or
- Fue l filler flap release .... .. .... .... .... ... ... .
- Rea r lid r elease
[ i ] Tip s
A separate brochure is provided for your factory -insta lled audio
system and/or the Aud i Nav igation System .•
I • •
184
75
187
41
64
62
94
108
106
105
110
219
2 6
71
74
216
55

Malfunction in the brak e system
USA models: If bot h, th e BRAKE wa rn ing l igh t and the .... rs warning
light come on~
page 20when the parking brake is released, there
may be a ma lfunction in the ABS, and there may a ls o be a malfunc ­
t ion in the brake sys tem it se lf~
&-
Canada models: If both, the brake warning light (Q)) and the ABS
wa rning light c ome on~
page 20w hen the parking bra ke i s
released, there may be a ma lfunction in the ABS, and there may a lso
b e a ma lf un ction in the brake sys tem itsel f~
& -
Malfunction in the electronic differential lock (EDL )
The two sys te m s EDL and ABS wor k together. The ~ warning ligh t
wi ll come on if there is a malfunct ion in the EDL system~
page 186.
See your au thorize d Aud i dea le r as soon as poss ibl e.
& WARNING
• If the P • warning light does not go out, or if it comes on while
driving , the ABS system is not working properly . The vehicle can
then be stopped only with the brakes operating without ABS support . You will not have the protection ABS provides . Contact
your Audi dealer as soon as possible .
• USA models : If both, the BRAKE warning light and the
warning light come on at the same time , the rear wheels could
lock up first under hard braking . Lock-up of the rear wheel brakes
can cause loss of vehicle control and an accident. Have your
vehi cle repaired immediately by your authorized Audi dealer or a
qualified workshop. Drive slowly and avoid sudden, hard brake
application .
• Canada models: If both, the brake warning light (Cl) and the ABS
warning light ""' come on at the same time , the rear wheels could
lock up first under hard braking. Lock -up of the rear wheel brakes
can cause loss of vehicle control and an accident. Have your
vehicle repaired immediately by your authorized Audi dealer or a qualified workshop. Drive slowly and avoid sudden , hard brake
appli cation •
Controls and equip ­
ment
Instruments and warning /indi cator lights
Electro-mechanical power assist t / @
If the indicator light il luminates while you are driving, there is a
m alfunc tion in th e electro -m echa nical s teering. If the i ndica to r lig ht
is show ing ~, there may be a reduction in power steering ass ist. If
t he indi cator l ig ht is sh owing ~' the re may be a total loss o f pow er
steerin g assist . T he steerin g must be inspected immediately by a
q u alified works h op ~
6,. W ith the engine not ru nning (e.g. w hen
th e car is b eing tow ed), there is a lso no power assist avai lable .
& WARNING
If there is a malfunction , the indicator light for the electro -mechan ­
ical power assist illuminates . Seek professional assistance. •
I • •

• ..__O_ n_ t_h _ e_ r_ o_ a_ d ____________________________________________________ _
Ignition lock and ignition switch
Ignition lock
The igniti on key starts or s tops the eng ine.
Ignition off G)
Fi g. 1 01 Ign it io n lock
po sition s
In posit ion => fig. 101 G) both the ignition and engine are off, and
t he steering is locked.
To
lo ck the steering after you have removed the ignition key, turn
the steering whee l in either direction until you hear it lock into
place . You should always lock the steering whenever you leave your
vehic le. This makes a vehicle theft even more difficult =>& .
Ignition on 0
If it is difficult to turn the key after you have inserted it into the igni ­
tion lock, turn the steering wheel back and forth. This will take the
load off the steering lock mechanism and you wil l be able to turn the
key freely and start the engine.
Starting the engine ®
In this position the engine starts . Whi le the engine is starting, the
power supply to the headlights and other electrical consumers is
temporari ly interrupted to conserve battery power . After the engine
has started, release the key and it will return to position
G) .
Before the starter can be operated again the key must be turned
back to posi tion
G) . The non -repeat lock prevents you from
damaging the starter when the engine is running.
& WARNING
• Never remove the key from the ignition lo ck while the veh icle is
moving. The steering wheel will lo ck causing lo ss of control .
• If you have to leave your vehicle -even for just a minute -always
remove the ign ition key and take it with you . This i s especially
i mportant if you are going to l eave children behind in the vehi cle .
The children could start the eng ine or u se other vehi cle control s.
Unsupe rv ised use of vehicle controls (for e xample , power
window s) can cau se serious per sonal injurie s.
[ i ] Tips
If the veh icle ba ttery has been disconnected a nd then reconnected,
then you must leave the key in position
G) for about 5 seconds
bef ore you can start the engine .•
Appl ies to vehicles: with automat ic trans miss io n
Ignition key safety lock
The ig nition ke y can only be rem oved when the selec tor
le ver i s in the "P" (Par k) p osition.
After switching off the ignition, the ignition key can only be
r emoved from the igni tio n lock w hen the se lector leve r is in the "P"
(Park) position . After you have removed the key, the selector lever is
l ocked and cannot be moved. •

--~ln~t~ e~ l~ li ~g ~e~ n~ t~ te ~ c~h ~n ~ o~ l'..!: o ~g~ yL ________________________________________ _
(ABS control range). In order for ABS to be ab le to operate optima lly
in th is range, you m ust keep the brake pe dal depressed -do not
"pump the brakes" .
Brake ass istant
T he brake power assist unit increases the pressure that you
ge nera te wi th the brake pedal. I t wo rks only whe n the e ngine is
running .
Automatic full braking
This function al lows fu ll braking in spite of high brake pedal forces
(e .g. whe n the b rakes are seve rely s tresse d beca use the veh ic le is
ful ly loaded). The driver notices this function through a reduction of
pedal force a nd i ncrease d pe dal trave l. W hen the brake peda l is
released, fu ll braking assist switches off again automatically .
If there is an ABS fail ure , the brake assistant and automatic fu ll
brak in g ass ist are not ava ilable.
& WARNING
• ABS cannot suspend the la ws of physics . You should keep this
in mind in particular on an icy or wet road . If ABS control of braking
intervenes , you should adjust your speed immediately to road and
traffic condit ions. Do not be tempted by the increased safety
provided to t ake risks -danger of an accident.
• Please keep in mind that the risk of an accident is increased by
dri ving too fast, pa rticularly in bends and on icy or wet roads , and
by driving too close to the vehicle ahead . The increased risk of an
accident cannot be reduced by the brake as sistant - danger of an
accident .
[ i ] Tips
If a ma lfunction occurs in the ABS, this is signa lled by an indicator
lig ht, see
=> page 20. •
Electro-mechanical power assist
-----
The e lec tro -m ec han ical pow er as sis t h el ps th e dri ver
w he n steering.
T he degree of power assist is electronically matched to vehic le
sp eed .
Th e power steering system ass ists the driver so that he can steer the
ve hicle wi th re duced phy sica l eff ort .
P ower steer ing w ill not wo rk if the engine is o ff. As a result, the
steering wheel wi ll be hard to turn.
& WARNING
If the system develops a problem, you must seek qualified profes­
sional assistance .
0 Note
If there is an electronic ma lfunction , servotronic will still funct ion
l ike a conventional power stee ring system, providing a constant
steer in g suppo rt fo rce t hat is no lon ge r proportionate to t he veh icle
speed . This is most noticeable when turning the steering wheel at
lo w spe eds (fo r examp le w hen park ing), -mo re effor t will be
required than usual.
• B e awa re of the d iffer ent than usua l ste ering response and
adjust your steering force accordingly.
• H ave the problem chec ked and set ri ght by an authorized Audi
dea ler as soon as possible .
• I f a steering ma lfunct ion occurs, this is signaled with the~ or.
@ in d ica to r ligh ts and a war ning tone, see . ._

[ i ] Tips
• If the pow er st eering sy stem sho uld fa il, or if the e ng ine is not
running (for examp le , whi le being towed), you will stil l be able to
st eer the ve hicle . How eve r, more e ffort w ill be required to do so.
• I f the powe r steering system is not f unctioning pr ope rly, contact
your authorized Audi dea ler immediate ly.
Ap plies to vehicles : wit h A ll Wheel Driv e
Driving w ith your quattro®
With All Wheel Drive, all four w heels ar e dri ven.
General information
With All W hee l Dr ive, power is d is tr ibute d to all fou r whee ls . T his
happens automat ica lly depending on your driving style and the
r oad cond itio ns at the time. See also =>
page 186, "E lec tronic diffe r­
entia l lock ( EDU" .
Winter tires
When driving in the winter, your vehic le with All Wheel Drive has an
advantage, even wi th regula r t ir es . In winter road conditions it may
be advisable to mount winter tires (or all -season tires) for improved
driveabi lit y an d braking : these tires m ust be mounted on
all four
wheels .
See also=> page 254 , "Win ter t ires" .
Snow chains
Where tire cha ins are mandatory on certain roads, this normally
a lso a pplies t o vehic le s wi th Al l Wheel Drive =>
page 255, "Sn ow
chains".
Replacing wheels /tires
Vehicles with A ll Wheel Drive must always have tires of the same
s iz e. Also av oid t ires w it h d iff eren t tr ead dep ths. For details see
page=>
page 249, " New tires and replacing tires and whee ls " .
Controls and equip­
ment Safety first Vehicle operation
Intelligent technology
Off
-Road driving?
Your Audi d oes not have en ough gr ound clea rance to be use d as a n
off -road vehicle. It is therefore best to avoid roug h tracks and
u neven terrain as much as possible. A lso refer to=>
page 194.
& WARNING
Always adjust your driving to road and traffic conditions. Do not
let the extra safety afforded by All Wheel Drive tempt you into
taking extra risks .
• Although the All Wheel Drive is very effective , always
remember that braking capacity is limited by tire traction. You
should therefore not drive at e xcessive speeds on icy or slippery
road surfaces.
• On wet road su rfaces , be careful not to dr ive too fast because
the front wheels could begin to slide on top of the water (aqua ­
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 d rive at speeds which are suited to the road condi­
tions. -risk of cra sh. •
Vehicle care Do-it-yourself service Technical data

________________________________________________ T_ i _r_e _s_ a_n_ d_ w_ h_ e_e _ l_s __ l'III
•
& W ARNING (continu ed )
crashes and serious personal in jur ies . Have worn or da maged t ires
replaced immediately .
• Tires age even if they are not being u sed and can fail suddenly ,
especially at high speeds. T ires that are more than 6 years old can
only be used in an emergency and then w ith special care and at
low speed.
Glossary of tire and loading terminology
Accessory weight
means the co mbined we ig ht ( in excess o f those sta nda rd items
which may be rep laced) of automatic transmission, power steering,
power brakes, power w indows, powe r seats, rad io, a nd heater, to
the extent that these items are avai lab le as factory-installed equip­
m ent (w hether insta lled or not).
Aspect ratio means t he ratio o f th e height to t he w idt h of the tire in perce nt.
N umbers of 55 or lower indicate a low sidewa ll for improved
steer ing respo nse and b ette r overall ha ndl ing on dry pave ment.
Bead
means the part of the tire that is made of stee l wires, wrapped or
reinforced by ply cords and that is shaped to fit the rim.
Bead separation
means a breakdow n of the bond be tween co mponents i n the bead.
Cord
m eans the strands fo rmi ng the plies in the ti re.
& W ARNING (continued )
• Never mount used tires on your vehicle if you are not sure of
their "previous history. " Old used t ire s may ha ve been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and lo ss of vehicle control.
• If you noti ce unusual vibration or if the vehicle pulls to one side
when driving , always stop as soon as it is safe to do so and check
the wheels and tires for damage . •
Cold tire inflation pressure
mea ns t he ti re pressure reco mm ended by the ve hicle ma nufacturer
for a tire of a designated size that has not been d riven for more tha n
a cou ple o f miles (k ilometers) at low speeds in t he t hre e ho ur per iod
before the tire pressure is measured or ad justed .
Curb weight
means the weight of a moto r vehic le with standard equipment
i nc lud ing the max imu m capac ity o f fue l, o il, and coola nt, a ir c ond i­
tioning and additiona l weight of optional equipment.
Extra load tire
means a tire designed to ope rate at higher loads and at higher infla­
tion pressures than the corresponding standard tire. Extra load tires
my be identified as "XL", "xi", "EX TRA LOAD", or "RF" on the side ­
wa ll.
Gross Axle Weight Rating ("GAWR ")
means the load -carrying capacity of a sing le ax le system, measured
at the ti re -ground interfaces.
Gross Vehicle Weight Rating ("GVWR "l
mea ns the ma ximum tot al l oade d weigh t of the vehicle.
Vehicle care
I t •

Fuses and bulbs -
----------------
Equipment No. Equipment
Amps
Engine relay, fuel tank control unit, Airbag Off
16 A/C system (control unit) 10
1
light, light switch (switch illumination), diagnos-10
tic connector
17 Tire pressure monitoring system (control unit) 5
18
Not used
ABS, ASR, ESP, brake light switch
5 19
Not used
3 AFS headlight (left) 5
Not used
Oil level sensor (extended maintenance interval)
(WIV), tire pressure monitoring system, switch
21 Fuel injectors (gasoline engine) 10
4 for Electronic Stability Program (ESP), AFS head-5 Wind deflector (Roadster) 30
lights (control unit), A/C system (pressure sen -23 Horn 20 sorl, backup light switch
Automatic headlight range control, AFS head-
24 Transmission (control unit) 15
5
light (right)/ manual headlight range control, 5/10
25 Heater rear window Coupe/heated rear window 30/20
halogen headlights Roadster
Control unit for CAN data transfer (gateway),
26 Driver's side power window 30
6 electromechanical steering, automatic transmis-5
27 Passenger's side power window 30
sion shift gate
28 Not used
Acoustic Park Assist, automatic dipping interior
rear view mirror, garage door opener, heatable
29 Washer pump 15
7
windshield washer nozzles, washer pump, wind 5
30 Cigarette lighter 20
deflector relay (Roadster)
31 Starter 40
8
Haldex clutch 5 32 Steering column module 5
9
Control unit Audi magnetic ride 5 33
Instrument cluster 5
Airbag control unit 5 34 Radio navigation system, radio 15
1 1 Mass airflow sensor, crankcase heating 5/10
35
Audio amplifier 30
12 Door control unit (central locking driver/passen-10
36 Engine (control unit) 10 ger)
13 Diagnostic connector 10 37 CAN (Gateway) 5
Rain sensor, automatic transmission shift gate 5 38 Not used
15 Roof
light (interior lighting) 5 39 Not used
• Do-it
-yourself service