2017 AUDI TT ROADSTER heating

Driving
Avoid full acc ele ra tion
You sho uld rare ly travel at the maximum vehicle
speed . High speeds cause a disp roportionately
high increase in fuel consumption, emissions and
traffic noise . Slower driving saves fuel.
Reduce idling time
It pays off to stop the engi ne, for examp le when
at rai lro ad crossings or tr affic lights with longer
red lights . Stopping the engine for 30 -40 sec ­
onds already saves more fuel than the amount of
extra fuel needed to resta rt the engine.
It t akes a very long time in idle to wa rm the en­
g ine up to operating tempe ra ture . Wear and
emissions are especially high in the warm-up
p hase . Therefore, yo u should begin driving im ­
mediately after starting the engine. Avoid high
RPMs while do ing th is.
Have ma intenanc e performed r egularly
By having maintenance performed regular ly on
your vehicle, yo u can help to reduce f uel con­
sumpt ion before you even start to dr ive. The
maintenance condition of your vehicle not only
affects traffic safety and long-term value but a l­
so impacts
fuel consumpt ion .
A poorly maintained engine can lead to fuel con­
sumpt ion that is 10% higher than normal.
A lso check the
oil le vel when refueling . The o il
consumption
depends large ly on the engine load
and speed. It is normal for the oil consumpt ion
of a new eng ine to reach its lowest point only af­
ter a certain amount of use. Therefore, the oil
consumption can o nly be properly judged after
approx imately 3,000 m i (S,000 km) have been
d riven.
Avoid short trips
The engine and exhaust cleaning system must
reach the ir opt imal
operating temperature to ef­
fectively red uce consumption and em iss ions.
A co ld engine uses a disproportionately h igh
amount of fuel. The engine reaches operating
temperature and consumpt io n normalizes only
afte r approximately
four kilometers.
58
(D Note
Do not leave engine idling unattended after
starting. If warning lights sho uld come on to
i ndicate imprope r operation, they would go
unheeded. Extended idling also produces
h eat, which could result in overheating or
other damage to the vehicle o r other proper­
ty.
(D Note
- Have your ve hicle ma intained properly and
in accordance with the service recommenda­
t ions i n your Warranty
& M aintenance book­
let. La ck of prope r mai nte na nce as we ll as
imp roper use o f the ve hicle will impa ir the
func tion of the emission cont ro l sys tem and
cou ld lead to damage.
- Do not alte r or remove any compone nt of
the Emission Contro l System unless ap ­
proved by the man ufacturer.
- Do not alte r or remove any dev ice, such as
heat shields, switches, ig nition w ires,
valves, which are designed to protect your
vehicle's Emission Contro l System and other
important veh icle components.
(D Tips
The cons umption estimates as publishe d by
ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the r oad, which wi ll vary depending upon vehicle
l oad and speed, road a nd wea ther conditions,
tr ip length, etc.

co
co
.... N
" N .... 0
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speed and the distance between your vehi­
cle and other vehicles.
- For safety reasons, cruise control should not
be used in the city, in stop-and-go traffic, on
winding roads and when road conditions are
poor (such as ice, fog, gravel, heavy rain and
hydroplaning), because this increases the
risk of a n accident.
- Switch the cruise control off temporarily
when driving in turning lanes, highway exits
or in construction zones.
- Please note that unconsciously "resting"
your foot on the accelerator pedal prevents
the cruise control from braking. This is be­
cause pressing the accelerator pedal over­
rides the cruise control system.
- If a brake system malfunction such as over­
heating occurs when the cruise control sys­
tem is switched on, the braking function in
the system may be switched off . The rest of
the cruise control system functions remain
active as long as the
@;\1)~14 (USA models) I
ill (Canada models) indicator light is on.
@ Tips
The brake lights turn on when the brakes are
app lied automatica lly.
Changing speed
Applies to: veh icles with c ruise control system
.. To increase/decrease the speed in increments,
briefly
tap the lever toward 010 Q page 72,
fig. 77 up/down to the first level.
.. To increase or decrease the speed in incre ­
ments,
tap the lever toward 010 Q page 72,
fig. 77 up/down to the second level.
.. To increase or decrease the speed quickly ,
hold
the leve r in the 0 / 0 direction until the de­
sired speed is reached .
Overriding the speed
Applies to: veh icles with c ruise control system
You can press the accelerator pedal down to in­
crease your speed, for example if you want to
pass someone. The speed you set earlier wi ll re-
Assist
sume as soon as you release the acce lerator ped ­
al.
However, if you are exceeding the stored speed
by a considerable amount for a long time, the
cruise contro l system will temporarily switch off.
The
(ff;ji )~i4 (USA mode ls) Iii (Canada mode ls) in­
dicator light in the instrument cluster turns off
and the stored speed is maintained.
Preselecting the speed
Applies to : vehicles with cruise control system
You can pre-select your desired speed when the
vehicle is stationary.
.. Switch on the ignition.
.. Pull the lever into position (!)
Q page 72,
fig. 77.
.. To increase or decrease the speed, tap the lever
toward
0 10 .
This function makes it possible, for example, to
save the speed you want before driving on the
highway . Once you are on the expressway, acti­
vate the cruise control system by pulling the lev­
er into position (!).
Switching off
Applies to: vehicles with cruise control system
Temporary deactivation
.. Press the brake pedal, or
.. Press the lever toward@(not locked into
place)
Q page 72, fig. 77.
Switching off completely
.. Press the lever into position @(clicked into
place), or
.. Switch the ignit ion off .
The speed you stored will be maintained if the cruise control has been switched off temporarily .
To resume the stored speed, release the brake or
clutch pedal and pull the lever to position (!).
Switching the ignition off will erase the stored
speed .
73

Intelligent Technology
Intelligent Technology
Electronic stabilization
control (ESC)
Description
Electronic Stabilization Control (ESC) supports
driver safety.
It reduces the risk of slipping and
improves driving stability. ESC detects critical sit­
uations such as the vehicle oversteering and un­
dersteering or the wheels are spinning. The vehi­
cle is stabilized by applying the brakes or reduc ­
ing engine torque. When ESC engages, the
G1 in­
dicator light blinks in the instrument cluster.
The following systems are integrated in the ESC:
Anti-lock braking system (ABS)
ABS prevents the wheels from locking when brak­
ing. The vehicle can still be steered even during
hard braking. Apply steady pressure to the brake
pedal. Do not pump the pedal. A pulsing in the
brake pedal indicates that the system is acting to
stabilize the vehicle .
Brake assist system
The brake assist system can decrease braking dis­
tance. It increases braking power when the driver
presses the brake pedal quickly in emergency sit­
uations . You must press and hold the brake pedal
until the dangerous situation is over .
Anti-slip regulation (ASR)
ASR reduces engine power when the drive wheels
begin spinning and adapts the force to the road
conditions. This makes it easier to start, acceler­
ate and drive up hills .
Electronic differential lock (EDL)
EDL applies the brakes to a wheel that starts
spinning and transfers the drive power to the
other driving wheels. This function is not availa­
ble at higher speeds.
In extreme cases, EDL automatically switches
off
to keep the brake on the braked wheel from over­ heating. The vehicle is still working correctly. EDL
will switch on again automatically when condi­
tions have returned to normal.
88 Steering
recommendation
The ESC helps to stabilize the vehicle by changing
the steering torque.
Selective wheel torque control
Selective wheel torque control is used when driv­
ing on curves. The front whee l on the inside of
the curve or both wheels on the inside of the
cu rve are braked selectively as needed. This al­
lows more precise driving in curves. The applica ­
ble system may not activate when driving in wet
or snowy conditions.
A WARNING
- The ESC and its integrated systems cannot
overcome the limits imposed by natural physical laws. This is especially important
on slippery or wet roads. If the systems be­
gin acting to stabilize your vehicle, you
should immediately alter your speed to
match the road and traffic conditions. Do
not let the increased safety provided tempt
you into taking risks. This could increase
your risk of a collision .
- Please note the risk of a collision increases
when driving fast, especially through curves
and on slippery or wet roads, and when driv­ ing too close to objects ahead. The ESC and
its integrated systems cannot always pre­
vent collisions -there is still a risk of acci­
dents!
- Press the accelerator pedal carefully when
accelerating on even, slippery surfaces such
as ice and snow. The drive wheels can spin
even when these control systems are instal­
led and this can affect driving stability and
increase the risk of a collision.
(j) Tips
-The ABS and ASR only function correctly
when all four wheels have a similar wear
condition. Different tire sizes can lead to a
reduction in engine power.
- You may hear noises when the systems de­
scribed are working.

Intelligent Technology
greater than the amount being generated in or­
der to maintain an optimal vehicle battery charge
level.
(D Tips
- Energy management cannot overcome the laws of physics. Note that the charge level
and length of the vehicle battery life are
limited.
- When the starting ability is jeopardized, the
(•j indicator light turns on¢ page 13.
What you should know
Maintaining the starting ability is the highest
priority.
A lot of stress is placed on the vehicle battery
when driving short distances, during city driving,
and at cold times of the year. A lot of energy is
used but little is generated. It is also critical
when the engine is not running but electrical
equipment is switched on. In this case, energy is used but none is generated .
In situations like this, energy management will
actively regulate the distribution of energy.
Long periods without use
If you do not drive your vehicle for several days or
weeks, electrical equipment is gradually scaled
back or switched off. This reduces energy use and
ensures the vehicle will be able to start after long
periods of time. Some convenience functions
such as opening with the remote control key may not be available . These convenience functions
will be available again once you switch the igni­ tion on and start the engine.
With the engine switched off
The vehicle battery will drain if you use Infotain­ ment functions such as listening to the radio
while the engine is switched off .
If the vehicle's ability to start may be impaired by
the energy use, a message will appear in the In­
fotainment system display. The message indi­ cates that the system will switch off automatical­ly soon .
If you would like to continue using the
functions, you must start the engine.
94
With the engine running
Although e lectrical energy is generated while
driving , the vehicle battery can drain . This can
happen if little energy is generated but much is
used, and the charge level of the vehicle battery
is not optimal.
To restore the balance of energy , components
that require large amounts of energy are tempo­
rarily scaled back or switched off. Heating sys­
tems in particular require a great deal of energy.
If you notice, for example, that the seat heating*
or rear window defroster is not working, then it has been temporarily reduced or switched off .
These systems are available again as soon as the energy supply has been restored.
In addition, you may notice that the idle speed
has slightly increased . That is normal and no
cause for concern . By increasing the idling speed ,
the additional required energy will be generated
and the vehicle battery will be charged.
Information about data
recorded by vehicle
control modules
Your vehicle is not equipped with a crash data re­
corder . This device is installed by some vehicle
manufacturers to record data about crashes so
that it can be analyzed later. Crash data record­
ers are also called "Event Data Recorders (EDR)".
In some legal jurisdictions, it is not permitted to
access or download data recorded by pre-instal­
led crash data recorders in order to evaluate a
crash without clear consent of the vehicle owner.
Your vehicle is not equipped with a crash data re­
corder. However it does contain a variety of elec­
tronic control modules for various vehicle sys­
tems such as engine function, exhaust treatment
or airbags and safety belts.
These electronic control modules record vehicle
data during normal driving for diagnosis and re­
pair purposes. The recording capability of the
electronic control modules is limited to data only
- no sound is recorded. If the control module de­
tects a system malfunction or other change in
status, a very limited amount of data is recorded .,,.

Checking and Filling
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheating
and being pushed out of the cooling system.
A WARNING
The cooling system is pressurized and can be­
come very hot. To reduce the r isk of burns
from hot coolant:
- Do not open the coolant expansion tank cap when the eng ine is hot. This increases the
risk of burns.
- Stop the engine and allow it to cool.
- Protect your face, hands and arms from es-
caping coolant and steam by covering the
coolant tank cap with a large, thick cloth.
- Turn the coolant tank cap counterclockwise
slowly and keep light pressure o n the cap.
- To reduce the risk of burns, do not allow any
antifreeze or coolant to drip onto the ex­ haust system or hot eng ine components .
T he ethylene glycol in eng ine coolant can
catch fire under certa in circumstances.
- The coo lant add itive and the coolant can be
dange rous to your health. For this reason,
keep the coolan t in the origina l container
and away from children. There is a risk of
poisoning.
- When working in the engine compartmen t,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of inj ury.
(D Note
Do not add coolant if the exp ansion tank is
empty . Air could enter the cooling system and
damage the engine . If this is the case, do not
continue driving. See an authorized Audi deal­
er or authorized Audi Service Facility for assis­
tance.
242
Brake fluid
Fig. 1 85 Eng ine compa rtment: cover o n the brake fluid
reservo ir
Observe the safety precautions ¢ A in Working
in the engine compartment on page 235.
Check ing the brake fluid level
... Read the bra ke fluid level o n the bra ke flu id
reservoir
¢ page 237, fig . 181. The brake f luid
level must be between the MIN and MAX mark­
ings ¢&_ .
The brake f lu id leve l is monito red au toma tically.
Changing the brake fluid
Have the brake fluid changed regularly by an au­
thorized Audi dea ler or authorized Audi Service
Fac ility.
A WARNING
- I f the brake fl uid leve l is below the MIN
marking, it can impair the bra king effec t
and driving safety, which increase the risk o f
an accident . Do not continue driv ing. See a n
author ized Audi dealer or authorized A udi
Serv ice Facility for assistance.
- If the brake fl uid is old, b ubbles may form
in the brake system during heavy braking.
This would impair braking performance and
driving safety, which increases the r isk of an
accident.
- To ensure the brake system functions cor­
rectly, only use brake fluids that comply
w it h VW standard SO l 14 or
FMVSS- 116 DO T 4.

Care and cleaning
- Never use gasoline, spot remover, ben­
zene, paint thinner or other solvents to
remove.
- Door window s
-Remove snow and ice on windows and ex-
terior mirrors with a p lastic scraper . To
avoid sc ratches, move the scrape r only in
one direction and not back and forth .
- Never remove snow or ice from door win­
dows and m irrors using warm or hot water
because this could cause cracks to form.
- To avoid damage to the rear w indow de­
fogge r, do not apply any stickers on the
heating w ires on the inside of the window.
- Decorati ve parts /tr im
- Never use chrome care or cleaning prod-
ucts.
-Paint
-To reduce the risk of scratches, the vehicle
must be free of dirt and dust before pol­
ishing or waxing.
- To prevent pa int damage, do not polish or
wax the veh icle in direct sunlight .
-To reduce the risk of pa int damage, do not
polish away rust spots .
- Remove cosmetics and sunscreen immedi­
ately- these could damage the paint.
- Instrument cluster
- Make sure that the instrument clus ter is
switched off and has cooled off before
cleaning it.
- The instr ument cluster and the trim sur­
round ing it must not be cleaned w ith dry
cleaning methods because they could ge t
scratched.
- Make sure no fluids ente r th e spaces be­
t ween the ins trumen t cluster and the
trim, because that could ca use damage .
-Control s
-Make sure that no fluids enter the con-
trols, because this could cause damage.
- Safety belts
- Do not remove the safety belts to clean
them .
- Never clean safety belts or their compo ­
nents chemically or with cor rosive flu ids
or so lvents and neve r a llow sha rp objects
270
to come into contact with the safety belts .
This could ca use damage to the belt web­
b ing.
- If there is damage to the webbing, the
connections, the retractors or the buckles,
have them replaced by an authorized Aud i
dealer or authori zed Audi Serv ice Facility .
-Te xtile s/artificial leather / Alcantara
- Neve r treat art ificial leather/Alcantara
with leathe r ca re products, solvents, floor
polish, shoe polish, spot remove o r similar
p roducts.
- H ave a spec ialist remove stubborn stains
to prevent damage .
- Never use steam cleaners, brushes , hard
sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry the
seat .
- Objects w ith sharp edges, such as zippers
or rivets on clothing or belts , can cause
damage to the surface.
- Open hook and loop faste ne rs, fo r exam­
p le on clothing, can damage seat covers .
Make sure hook and loop fastene rs a re
closed .
-Natural leather
- Never treat leather with solvents, floor
polish, shoe polish, spot remover or sim i­
lar products.
- Objects w ith sharp edges, such as zippe rs
or rivets on clothing or belts, can cause
damage to the surface.
- Never use steam cleaners, brushes, hard
sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry the
seat .
- To he lp prevent the leather from fading ,
do not leave the vehicle in d irect sunlight
for long periods of time. If leav ing the ve­
h icle parked for long periods of time, you
should cover the leather to protect it from
d irect sunlight.
@ Tips
- Insects are easier to remove from paint that
has been freshly waxed.
IJ,,

Fuses and bulbs
Interior fuse assignment
Fig. 208 Vehicle inter ior: fuse assignme nt
No. Equipment
Fl Power top control modu
le (Roadster)
F2 Power top control module (Roadster)
F3 ESC control module
F4 Central computer processor (MIB-2)
FS Gateway
F6 Anti-theft alarm system Climate control system, selector lever (au-
F7 tomatic transmission), parking heater,
rear window heater relay coil
Diagnos is, electrical parking brake switch,
F8 light swi tch, rain/light sensor, interior
lighting
F9 Steering column switch module
Fl0 Display
F ll Haldex clutch
F12 MMI area
F 13 Adaptive dampers control module
F14 Climate control system blower
FlS Electronic steering co lumn lock
F16 MMI components, safety be
lt microphone
(Roadster)
282
No . Equipment
F17 Instrument cluster
F18 Rearview camera
F19 Convenience key system control module
F20 Power lumbar support adjustment
F22 Front passenger's side neck heating (Road-
ster)
F23 R
ig ht exterior lighting, on-board compute r
(right)
F 25 Driver's s
ide door (for example power win-
dows)
F26 Seat heating
F28 AMI H igh med ia port
F29 On-board computer
F31 Left on-board computer
F32 Driver assistance systems
F33 Airbag
Socket relay, interior sound, back-up light
F34 switch, temperature sensor, oil level sen-
sor
Diagnosis, headlight range control system,
F35 air quality sensor, automatic dimming
rearview mirror
F36 Right cornering light/ r ight LED-h eadlight
F37 Left cornering light/ left LED-headlight
F38 E
ng ine control module, ESC control mod-
ul e
F39 Front passenger's side door (for example
power windows)
F40 Cigarette lighter, sockets
F41 SCR relay and delivery unit
F42 Central locking area
F43 On-board computer
F45 Power adjustable driver's side seat
F46 Driver's side neck heat ing (Roadster)
F49 Starter, clutch sensor
FS0 ESC valves
F53 Rear window defogger
The power seats* are protected v ia
circuit break­
ers
that automatically switch on after a few sec­
onds after the overload has been reduced.

CD
CD
.... N
" N .... 0 r--. V, co
Left engine compartment fuse assignment
Fig. 209 Engine compartment: fuse ass ignment
No. Equipment
Fl ESC control module
F2 ESC control module
F3 Engine control module
Engine cooling, engine components, auxili -
F4 ary heater coil re lay ( 1+2), secondary air
injection pump relay
FS E
ngine components, tank system
F6 Brake light sensor
F7 Engine components
F8 Oxygen sensor
F9 Engine components, exhaust door, glow
time control module
FlO Fuel injectors, fuel control module
Fll Auxiliary heater heating element 2
F 12 Auxiliary heater heating e
lement 3
F13 Automatic transmission cont rol module
FlS Horn
F16 Ignition coil
F17 ESC control module
, engine control mod-
ule
F18 Term inal 30 (reference voltage)
Fuses and bulbs
No . Equipment
Fl9 Windshield wipers
F20 Horn
F22 Terminal SO diagnos
is
F23 Starter
F24 Auxiliary heater heating element 1
F3 2 LED headlights
Bulbs
Message
Your vehicle is equ ipped with maintenance-free
headlights and tail lights . However, if a light bulb
needs to be replaced, p lease contact yo ur author­
ized Audi dea ler or authorized Audi Service Facili­
ty.
283