2018 AUDI TT ROADSTER ECU

Table of contents
Airbag system . . . . . . . . . . . . . . . . . . . .
194
Important information . . . . . . . . . . . . . . . 194
Front a irbags . . . . . . . . . . . . . . . . . . . . . . . 198
Mon itoring the Advanced Airbag System . 205
Knee airbags .. .. ............. .... .. . 210
Side airbags . . . . . . . . . . . . . . . . . . . . . . . . 212
Child safety . . . . . . . . . . . . . . . . . . . . . . 216
Important information . ....... .. .. .. . 216
C hi ld safety seats . . . . . . . . . . . . . . . . . . . . 221
Secur ing ch ild safety seats . . . . . . . . . . . . 225
Add it io nal info rmation . . . . . . . . . . . . . . . 228
Maintenance and Care . . . . . . . . . . . 229
Checking and Filling . . . . . . . . . . . . . 229
F ue l..... .. .. .. ............. .... .. . 229
Ref ueling . . . . . . . . . . . . . . . . . . . . . . . . . . 230
E m issions cont ro l sys tems . . . . . . . . . . . . 233
On Board Diagnostic System (OB D) . . . . . 233
Engine compartment . . . . . . . . . . . . . . . . . 233
Eng ine oil . . . . . . . . . . . . . . . . . . . . . . . . . . 236
Cooling system . . . . . . . . . . . . . . . . . . . . . . 239
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . 241
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
W indshield washe r system . . . . . . . . . . . . 243
Service i nterval d isplay 24 3
Wheels ... .. .. ................ ... . 244
Wheels and T ires . . . . . . . . . . . . . . . . . . . . 244
T ire press ure monitor ing system
T ire press ure monitor ing sys tem 26
1
26 2
Care and cleaning . . . . . . . . . . . . . . . . 266
Gene ral informa tion . . . . . . . . . . . . . . . . . 266
Ca r washes . . . . . . . . . . . . . . . . . . . . . . . . . 266
C leaning and care information . . . . . . . . . 267
P lacing your vehicle o ut of service . . . . . . 271
Do It Yourself . . . . . . . . . . . . . . . . . . . . 272
Emergency assistance . . . . . . . . . . . 272
Trun k escape latch . . . . . . . . . . . . . . . . . . . 272
Gene ral information . . . . . . . . . . . . . . . . . 272
Equipment . . . . . . . . . . . . . . . . . . . . . . . . . 272
T ire mob ility k it . . . . . . . . . . . . . . . . . . . . . 273
Replac ing whee ls . . . . . . . . . . . . . . . . . . . . 27S
Spare tire . . . . . . . . . . . . . . . . . . . . . . . . . . 279
4
Fuses and bulbs . . . . . . . . . . . . . . . . . . 280
E lectrica l fuses . . . . . . . . . . . . . . . . . . . . . . 280
B ul bs. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282
Emergency situations . . . . . . . . . . . . 283
Genera l . . . . . . . . . . . . . . . . . . . . . . . . . . . . 283
Start ing by push ing or tow ing . . . . . . . . . . 283
Start ing with jumper cables . . . . . . . . . . . 283
U sing the jump start cable . . . . . . . . . . . . 284
T ow ing with a tow truck . . . . . . . . . . . . . . 285
Raising the vehicle . . . . . . . . . . . . . . . . . . . 286
Accessories and technical data . . 288
Technical data . . . . . . . . . . . . . . . . . . . . 288
Vehicle spec ificat ions . . . . . . . . . . . . . . . . 288
Notes abo ut te chnical data . . . . . . . . . . . . 288
D imens io ns . . . . . . . . . . . . . . . . . . . . . . . . . 288
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . 2 88
Weights . . . . . . . . . . . . . . . . . . . . . . . . . . . 289
Consumer Information . . . . . . . . . . 290
Warranty coverages . . . . . . . . . . . . . . . . . . 290
Operating your vehicle outside t he U.S.A.
or Canada . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Audi Service Repair Manuals and Literature . . . . . . . . . . . . . . . . . . . . . . . . . . 290
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . 290
Accessor ies a nd techn ica l changes . . . . . . 292
De clara tion of compliance for
te lecommunications eq uipment a nd
electron ic sys tems . . . . . . . . . . . . . . . . . . . 293
Index ...... .. .. .. .. ............. .. 294

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Tachometer
The tachometer displays the engine speed in rev­
olutions per minute (RPM) .
The beginning of the red zone in the tachometer
indicates the maximum perm iss ib le engine speed
for all gears once the engine has been broken in
and when it is warmed up to operating tempera­
ture. Before reaching the red zone, you should
sh ift into the next h igher gear, choose the Do r S
selecto r lever posi tion, or remove you r foot from
the ac cele rator peda l.
{Q;l Note
The needle in the tachometer may only be in
t he red a rea of the gauge for a short per iod of
time or there is a risk of damaging the engine.
T he loca tio n where the red zo ne begins varies
de pending o n the engine.
@ For the sake of the environment
Upshifti ng e arly helps you to save fuel and re­
duces operati ng noise.
Odometer
Fig . 11 Inst rument cluste r: odomete r and reset b utto n
Trip odometer and odomete r
The trip odometer shows the distance driven
since it was last reset.
It can be used to meas ure
short distances .
The trip odometer can be reset to zero by press­ ing the reset button 10.01
¢ fig. 11.
The odome ter shows the to tal d ist ance tha t the
ve hicle has been driven .
Driver information system
Malfunction indicator
If there is a malfunction in the instr ument clus­
ter,
DEF will appear in the trip o dome ter disp lay.
Have the malfunction corrected as soon as possi­
ble.
On-board computer
Yo u can access the fo llowing information in the
o n- board
computer ¢ page 17, fig . 4@ .
-Time and d ate ¢page 173
- Average cons umption
- Range
- Short-term memory overv iew
- Long-term memory overv iew
T he short -term memory collects driv ing in forma ­
tion from t he time the ignition is switc hed on un ­
t il it is switched off. If you continue driving w ith­
in two hours after sw itch ing the ignit ion off , the
new values are included when ca lculating the cur­
rent t rip information .
U nli ke the short-te rm memory, the long-term
memory is not erased automatically. You can
se­
lect t he time period for evaluating trip informa­
t ion yourse lf .
Fuel consumption
T he current f uel consumption can be shown us ­
ing a bar graph . The average consumption stored
in the short-term memory is also disp layed. If
the ba r is green, your vehicle is savi ng fuel
t hr ough one of the following functions :
-Recuperation: electrical energy can be stored in
the vehicle battery when the vehicle is coast ing
or driving downhil l. The bar will move toward
D .
(D Tips
The date, time of day and time and date for­
mat can be set in the I nfota inment system.
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Fold mirrors* -if yo u se lec t On , the exterior rear­
view mirrors fold in automatically when you press
the
[ml button on the remote cont rol key o r touch
the sensor* in the hand le.
Lo ck when driving1> -if you select On , the vehicle
l oc ks automatically when driving . A ll of the doors
and the luggage compa rtment lid lock.
Mechanically unlocking and locking the
doors
If the central locking fails , you mus t unlock/lock
t he doors separa tely.
F ig. 19 Dr iver 's door: doo r loc k cy lin der
F ig. 20 Fro nt passenger 's doo r: e merge ncy re lease
Unlocking/locking the driver's door with the
mechanical key
.. Remove the mechan ica l key o:!> page 23 .
.. To unlock the driver's doo r, turn the key to the
unlock positio n in the direction of arrow
(I)
r=> fig . 19.
.. To lock the driver's door, move the selector lev­
er to the P position (automat ic tra nsmission)
and tu rn the key
one t ime to the lock position
in the d irect ion of ar row @.
,....
"' l) Thi s fun ctio n is not avail able in al l coun tries. co
Opening and closing
Locking the front passenger's door with the
mechanical key
The mechanical lock is located on the edge of the
front passenger's door . It is only vis ible when the
door is open.
.. Remove the mechanical key .:!> page 23.
.. Remove the cap from the openi ng ¢ fig . 20 .
.. Insert the key into the slot inside and turn it a ll
the way to the right (r ight door) or to the left
(left door*).
Once the front passenger 's door is closed, it is no
longer possible to open it from the outs ide . The
door can be opened from the inside by pull ing
t h e door handle.
Anti-theft alarm system
If the anti-theft alarm system detects a vehicle
brea k-in, audio and visual warn ing signals are
t rigge red. The anti -theft a la rm sys tem is swi tc h­
ed o n or off when lock ing/ unlo cki ng your ve hicle.
If the alarm is triggered, i t will shut off a utomat­
ica lly after a certain amount of time.
Switching the alarm off manually
.,. To swit ch t he a la rm off, press t he@ b utton on
t he remote cont rol key o r switch the ig nit io n
on.
Break-in security feature
T he alarm will sound if there is a break-in at the
doo rs , hood, and/o r luggage compa rtment lid.
Luggage compartment
lid
Opening/closing the luggage compartment
lid
Opening the luggage compartment lid
.,. Press the e5 button on the remote con trol key
for at least severa l seconds to open the luggage
comp artment lid. Or
.. Lift the luggage compa rtment lid . ..,_.
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Cl 00 ... N r-­N ... 0 r-­Vl 00
Power window
Controls
The driver can control all power windows.
Fig. 23 Dr iver's door: power w indow co ntro ls
All power window sw itches have a two -stage
function:
Opening and clo sing the windows
N N M 0 ::':,
"' ID
.,. T o open or close the w indow completely, press
the sw itch down or pu ll the sw itch up br iefly to
the second level. The operation wi ll stop if the
switch is pressed/p ulled aga in.
.,. T o se lect a position in between opened and
closed, press/pull the switch to the first level
unti l the desired window position is reached.
Power window switch es
(D Left doo r
@ Right door
A WARNING
- Pay careful attent ion when closing the win­
dows . Pinching could cause serious injur ies.
- When locking the veh icle from outside, the
vehicle must be unoccupied since the win­ dows can no longer be opened in an emer­
gency .
(D Tips
-You can still open and close the windows for
approximately
10 minutes after turning the
i gnition off. The power windows do not
switch off until the driver's door or front passenger's doo r has been opened .
- When opening the doors and when open ­
i ng/closing the power top, the w indows au-
Open ing and cl osing
tomatically lower approx imately 0.4 inches
(10 mm).
Convenience opening/closing
All windows can be opened and closed at the
same time.
Convenience opening feature
.,. Press the [@] button on the remote cont rol key
until all w indows reach the desired position .
Convenience closing feature
.,. Press and hold the~ button on the remote con-
trol key until all w indows are
closed ~,&. .
Con venience closing with the con venience
key *
.,. Touch the sensor* on the door handle long
enough until all w indows and the power top*
are closed . Do not place your hand in the door
ha ndle when doing this.
Settin g convenience opening in the
Infotainment sy stem
.,. Select in the Infotainment system: I M ENU ! but­
ton
> Vehicl e> left cont rol button > Vehicle set­
ting s.
To enable the conven ience window open ing func­
tion, the
L o ng pres s to open windows function
must be switched
o n.
A WARNING
- Never close the w indows o r the power top*
careless ly or in an uncontro lled manner, be­
cause this increases the risk of injury.
- For secur ity reasons, the win dows and the
power top* can only be opened and closed
with the remote control key at a maximum
d istance of approximately 6 ft (2 m) away
from the vehicle. When p ressing the [@] but­
ton, always watch the w indows and power
top* while they are closing so that no one is
p inched by moving components . The closing
p rocess w ill stop immediately when the [@]
button is re leased.
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Opening and clo sin g
Correcting power w indow malfunctions
You can reactivate the one-touch up/down func­
tion if it malfunctions .
.. Pull the power window sw itch up unt il the win­
dow is completely raised.
.. Release the sw itch and pull it up again for at
least one second .
Garage door opener
(Homelink)
Description
Applies to: vehicles with garage door opener (Homelink)
Fig . 24 Garage door ope ner: exa mples o f usage fo r differ ­
ent systems
W ith the garage door opener (Homelin k), you
can activate systems such as the garage doors,
secur ity systems o r house lights from inside your
veh icle. Up to three remote control f unctions can
be programmed to the three buttons that are in ­
tegrated in the control unit above the rearview
mirror .
To be ab le to operate systems using the garage
door opener, the buttons in the contro l unit must
first be programmed .
A WARNING
When operating or programming the garage
door opener, make sure that no people or ob­
jects are in the area immediately surrounding
the equipment . Peop le can be injured or prop­
erty can be damaged if str uck when closing .
30
@ Tips
-For security rea.sons, we recommend that
you clear the programmed buttons before
selling the vehicle .
- For additiona l information about Homelink,
visit
www.homeli nk.com .
-For the Dec laration of Conformity with the
prov isions from the FCC in the United States
and Industry Canada, see
c;, page 293.
Operating
App lies to : vehicles with garage door opener (Homelink)
F ig . 25 Co ntro l pane l above t he inter ior rea rv iew mirror
Requirement: the button in the control panel
must be
programmed ¢ page 31 and the vehi­
cle must be located within range of the system,
such as the garage door.
.. Press the button to open the garage door . The
green
LED © blinks or turns on .
.. Press the button aga in to close the garage
door.
(D Tips
To open or close the garage door, do not
press the button longer than 20 seconds or
the garage door opener will switch to pro­ gramming mode.

Cl co .... N ,-... N .... 0 ,-... Vl co
Power top: operation currently not poss ible
If t h e power top is operate d con tinu ally fo r a
l ong period of time, the overload pro tection acti ­
vates for approximate ly 15 to 3 0 minutes . You
can open or close the power top again after that .
Power top: operation currently not possible.
Engine must be running
The power top is automatically deactivated if the
battery voltage is low. You can open or close the
power top again after sta rting the engine.
Power top: operation currently not possible.
Outs ide temperature too low
The power top will not o pen whe n the tempera­
ture is below 5 °F (-15 °C) .
Power top: operation not possible. Speed too
high
If you go above 30 mph (SO km/h), the power
top cannot be operated due to safety reasons. Reduce the vehicle speed to close or open the
power top.
Power top : not secu re . Speed too high
This message appears if you go above 50 km/h
when operating the power top . Reduce t he vehi­
cle speed and operate the power top again.
Power top: malfunction! You may continue
driving (limited functionality). See owner's manual
This message appea rs if there is a ma lfunction in
the system . Try to open or close the power top
again. If the message st ill appea rs, then have an
au thor ized Audi dealer or author ized A udi S ervice
F aci lity correct the malf unct io n. Do not dr ive
mo re t han 3 0 mph
(SO km/h) unti l i t i s corre ct­
e d.
_& WARNING
N ever drive whe n the power top is not locked
correctly. The w ind from driving co uld cause
the power top to open. This can result in inju­ r ies and damage to the vehicle.
Power top
Wind deflector
Appl ies to: vehicles wit h w ind deflector
The wind deflector reduces air movement in the
passenger compartment in order to increase driving comfort.
Fig . 29 Ce nte r console: swi tc h fo r operating t he w ind de­
flec to r
A power mechanism extends and retracts the
wind deflector.
... ....
.,. To extend the wind deflector, pull the wind de ­
flector switch unti l the wind deflector is com ­
p letely extended .
.,. To retract the wind deflector, press the wi nd
deflector switch until the retracting p rocess is
complete .
_& WARNING
- Do not use the wind deflec to r to se cure ca r­
go.
- Always pay car eful att ention wh en clos ing
t he wi nd deflector. Pin chi ng could ca use se­
ri ous injuries.
@ Tips
- If the w ind deflector switch is released
w hile it is e xtending, th e proc ess will s top
i m med iate ly.
- T he wind deflec tor works best when all of
t he win dows a re rolled up while drivi ng.
35

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.,. Insert the hex socket wrench into the bolt and
remove it completely¢ fig. 33. Also remove
the bolt on the front passenger's side.
Step 3: Close the power top
Fig. 34 Power top in power top s torage bay
Fig. 35 Inner side o f the power top : re mov ing the cov er
.,. Lift the power top out of the sto rage compart­
ment ¢ _A.
.,. Pull the power top out completely .
.,. Remove the cover in the center of the power
top using a
screwdriver ¢ fig. 35 .
.,. Insert the crank (Torx head) into the opening
until the stop ring rests on the motor
¢page 37, fig. 36 .
.,. Turn the crank counter-clockw ise all the way so
that the locking hooks are completely opened .
.,. Press the power top onto the w indshield frame.
H ave a second person assist when positioning the
power top. That person shou ld stand on the op­
posite side of the vehicle and perform the same
steps .
_& WARNING
-When positioning the power top, avoid con­
tact with the supports or other moving
Power top
parts . Otherwise you could pinch your
hands.
- When pressing the power top down onto
the windshield frame, make sure that you
do not pinch yourse lf or anyone else . There
is a risk of injury.
(D Note
Make sure that both covers are complete ly
open and the push rods are clipped in to avoid
damage when opening the power top.
Step 4: Lock the power top
Fig. 36 Inside o f the powe r top : cra nk for emergency oper­
at ion
.,. Pull the power top downward at the side .
.,. Turn the crank clockwise until the power top is
completely locked .
.,. Pull out the crank .
(D Tips
Make sure the lockin g mechanisms are locked
securely.
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_& WARNING
-To reduce the risk of an accident, only adjust
the seat when the veh icle is stationary.
- Exercise caution when adjusting the seat
height . Adjusting the seat care lessly or
without checking can pinch hands and fin ­
gers .
- For safety reasons, the seat backrests must
always be locked while driving .
- Never drive with a safety belt through the
openings in the backrest . Otherw ise the
backrest could fold forward wh ile driving
and cause an accident.
Multifunction button
Applies to: vehicles with multifunction button
You con adjust the side bolsters using the multi­
function button .
"If you turn the multifun ction button (D
¢ page 46, fig. 49 to the left or r ight, the side
bolsters on the seat backrests will increase or
decrease the lateral support.
@ Tips
The air in the side bolsters* is released as
soon as the driver's door opens . T his makes is
possible to enter and exit the vehicle more
comfortably. As soon as you start driving the
veh icle, the side bolsters fill.
Center armrest
Applies to: vehicles with center armrest
Fig. 51 A rm rest betwee n the dr ive r's/fr ont passe nge r's
s e a ts.
S eats and storag e
"To adjust the angle, raise the armrest ¢ fig. 51
notch by notch.
.. To br ing the armrest back down, ra ise it out of
the top notch and fold it back down. Then lift
the armrest to the desired position, if necessa­ ry .
Please note that the d river 's ability to move his or
arm may be restricted when the armrest is folded
down . Because of this , the armrest should not be
folded down dur ing c ity dr iving .
The a rm rest can slide forward and back.
T here is a storage compartment under the arm­
rest.
Ashtray
Applies to: vehicles with ashtray
F ig. 52 Cen te r arm re st fo lded up: ash tray
The ashtray is placed in the center console under
the center a rm rest.
Lift up the cover to open . In ­
sert the ashtray securely back into the holder af ­
ter every removal (emptying).
_& WARNING
Never use the ashtray to hold paper, because
this increases the risk of a fire.
47