ignition AUDI TT ROADSTER 2016 Manual PDF

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CX) Press
the reset button I o.o I� page 24, Fig. 12
twice in the first five seconds after switching on
the ignition. System
settings
219

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CX) Airbag
system
Description of airbag
system
General notes on airbag system
The airbag is an integral part of the car's passive
safety system.
In conjunction with the seat belts, the airbag sys­
tem gives the front occupants additional protec­
tion for the head and chest in the event of a se­
vere frontal collision.
In a severe side collision the side airbags reduce
the risk of injury to the occupants ¢,&..
In addition to their normal function of protecting
the occupants in a collision, the seat belts also
hold them in a position where the airbags can in­
flate properly and provide maximum protection.
The airbag system will only work with the igni­
tion on. The airbag system is monitored electron­
ically; the indicator lamp m indicates whether
the system is functioning properly.
The main parts of the airbag system are:
- The electronic monitoring system (control unit
and sensors)
- The two front airbags
- The two side airbags
- The indicator lamp El in the instrument cluster
There is a fault in the airbag system if the
warning lamp
- does not come on when the ignition is switched
on.
- does not go out about 4 seconds after the igni­
tion is switched on.
- goes out and then comes on again after the ig­
nition is switched on.
- comes on or flickers while the car is moving.
A WARNING
- The airbags are not a substitute for the seat
belts; they are an integral part of the car's
overall passive safety system. The airbags
can only offer effective protection if the oc­
cupants are wearing their seat belts. For Airbag
system
this reason it is very important to wear the
seat belts at all times ¢ page 230, Why is it
so important to use seat belts?.
- The seat belts and airbags can only provide
maximum protection if the occupants are
seated correctly ¢ page 54, Front seats.
- If you do not wear a seat belt, if you lean
forward, or are not seated correctly while
the vehicle is in motion, you are at greater
risk of injury should the airbag system be
triggered in an accident.
- Components of the airbag system are loca­
ted in various parts of the vehicle. If repairs
to other vehicle components make it neces­
sary to perform work on the airbag system
or to remove or install parts of the airbag
system, this may cause damage to the air­
bag system. As a result, the airbags may not
inflate correctly or may not be triggered at
all in an accident situation. For this reason,
you should always have the work carried out
by a qualified workshop.
- If a fault should occur in the airbag system,
have the system checked immediately by a
qualified workshop. Otherwise the system
may fail to trigger in an accident.
- Do not attempt to modify components of
the airbag system in any way.
- Never make any alterations to the front
bumper or the body.
- Do not remove the seats.
- The airbag system can only be activated
once; if the airbag has been triggered, the
system must be replaced. Should the airbag
system or airbag modules have to be re­
placed, the qualified workshop carrying out
the replacement will document all details.
- If any repair work is required or the airbag
and restraint systems have to be replaced,
have the work carried out by your authorised
Audi dealer or a qualified workshop which
adheres to the Audi factory standards. This
will minimise the risk of injury.
- If you sell the vehicle, remember to pass on
the complete Service Wallet to the new
owner. If any of the airbags have been deac­
tivated, it is important that the new owner
is also given the relevant documents.
..,.
235

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CX) Deactivating
the passenger's airbag
Applies to: vehicles with key-operated switch for passenger's
airbag
If an airbag has been deactivated, it should be
reactivated as soon as possible so that it can
continue to give the required protection.
Fig. 199 Glove box: Key-operated switch for deactivating
passenger's airbag
Fig. 200 Warning lamp lights up when passenger's airbag
is deactivated
If you install a rearward-facing child seat on the
passenger's seat you must deactivate the pas­
senger's airbag beforehand .
... To deactivate the passenger's airbag, use the
emergency key to turn the key-operated switch
to OFF ¢ Fig. 199 .
... The
passenger's airbag can be reactivated by
turning the key to position ON.
Monitoring of airbag system
The indicator lamp JJI ¢ page 16 will light up for
a few seconds every time the ignition is switched
on.
If the passenger's airbag has been deactivated,
the indicator lamp "PASSENGER AIR BAG OFF
or" AIR BAG OFF" will light up constantly as a
reminder¢ Fig. 200 . Airbag
system
.&_ WARNING
- Never install a rearward-facing child seat on
the passenger's seat unless the passenger's
airbag has been deactivated -this can result
in potentially fatal injuries to the child
¢page 223.
- If you have deactivated the passenger's air­
bag, reactivate it as soon as the child seat is
no longer needed so that the airbag can
continue to give the required protection.
- It is the driver's responsibility to ensure that
the key-operated switch is set to the correct
position.
Description of front airbags
The airbag system is not a substitute for the seat
belts.
Fig. 201 Steering wheel: Driver's airbag
Fig. 202 Dashboard: Passenger's airbag
The front airbag for the driver is located in the
padded hub of the steering wheel¢ Fig. 201. The
front airbag for the passenger is in the dash­
board above the glove box ¢Fig. 202. The loca­
tions of the airbags are marked with the word
"AIRBAG". Ill--
237

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CX) the
canister during filling. This helps
prevent an electrostatic charge building
up.
- Make sure you never spill fuel in the vehi­
cle or in the luggage compartment. Fuel
vapour is explosive -danger to life!
CD CAUTION
- If any fuel is spilt onto the vehicle, it should
be removed immediately as it could other­
wise damage the paintwork.
- Never run the tank completely dry. If there
is an irregular fuel supply, misfiring can oc­
cur. As a result unburnt fuel can enter the
exhaust system and cause damage to the
catalytic converter(s).
- When filling the fuel tank after having run it
completely dry on a vehicle with a diesel en­
gine the ignition must be switched on for at
least 30 seconds without starting the en­
gine. When you then start the engine it may
take longer than normal (up to one minute)
for the engine to start firing. This is because
air needs to be bled from the fuel system
while starting.
@) For the sake of the environment
Do not try to put in more fuel after the auto­
matic filler nozzle has switched off; this may
cause the fuel to overflow if it becomes warm.
@ Note
Should the fuel tank flap become frozen stuck
during inclement weather, press the middle
of the flap with the palm of the hand and try
again.
(ill) Note
- To prevent the tank from being filled with
the incorrect type of fuel, only suitable filler
nozzles can be inserted in the fuel filler on
your vehicle.
- If the filler nozzle is old, damaged or too
small, it may not be able to open the pro­
tection mechanism on the fuel tank. In this
case, try turning the filler nozzle before in­
serting it in the fuel filler neck, use a differ- Checking
and topping up fluids
ent filling pump or seek professional assis­
tance.
- The protection mechanism will not open if
you try to add fuel from a spare fuel canis­
ter. If you need to fill the tank from a spare
fuel canister, you must use the special fun­
nel stowed in the luggage compartment
¢page 243, Fig. 209.
Filling the tank using a spare fuel canister
Fig. 209 Luggage compartment: Funnel
Fig. 210 Funnel inserted in tank opening
Please refer to the important safety notes¢.&.
in Procedure for filling the tank on page 242.
""' Press the tank flap -arrow- ¢ page 242,
Fig. 207 to open it.
.., Take out the floor panel¢ page 2 70.
""' Remove the plastic base panels ¢ page 58,
Fig. 63.
.., Take the funnel out of the luggage compart­
ment. .....
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""' Insert the funnel into the fuel filler neck as far
as the stop ¢Fig. 210. The funnel should be in­
serted so far into the fuel filler neck that the
ring on the funnel is not visible.
.., Insert the filler of the spare fuel canister into
the funnel and start fuelling.
...,.
243

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and topping up fluids
... After fuelling, remove the funnel and close the
fuel tank flap so that it locks in place.
CD CAUTION
Remove any fuel spills from the paintwork im­
mediately.
Releasing the tank flap manually
The tank flap can be released manually if the
tank unlocking system should fail to operate.
Fig. 211 Luggage compartment: Cover in the right side
trim
... Open
the boot lid .
... Lift the floor panel.
... Release the ring from its holder and carefully
pull the ring ¢Fig. 211.
Emission control
systems
Catalytic converter
Applies to: vehicles with petrol engine
The vehicle must only be used with unleaded pet­
rol, otherwise the catalytic converter will be ir­
reparably damaged.
Never allow the fuel tank to run completely dry,
as the irregular supply of fuel can cause misfir­
ing. This allows unburnt fuel to enter the exhaust
system, which can cause overheating and dam­
age to the catalytic converter.
Diesel particulate filter
Applies to: vehicles with diesel engine
The diesel particulate filter can filter out almost
all soot particles contained in the exhaust gas. In
normal driving conditions the filter is self-clean-
244 ing.
Should the self-cleaning function of the filter
not be able to operate, e.g. when the vehicle is
continuously used only for short trips, the filter
becomes obstructed with soot and the symbol
C for the diesel particulate filter lights up
¢page 17.
A WARNING
The exhaust system is very hot when the vehi­
cle is being driven and after the engine has
been switched off.
- Never touch the tailpipes when they are hot
- risk of burns!
- Because of the high temperatures which can
occur in the emission control system, do not
park the vehicle where the exhaust can
come into contact with flammable materials
under the car (e.g. on grass or at the forest
edge) -risk of fire!
- Do not apply any underseal agents in the
area around the exhaust system -risk of
fire!
Engine compartment
Working on components in the engine
compartment
Extra caution is necessary when working on com­
ponents in the engine compartment.
Always be aware of the danger of injury and
scalding as well as the risk of accident or fire
when working in the engine compartment (e.g.
when checking and refilling fluids). Always ob­
serve the warnings listed below and follow all
normal safety precautions. The engine compart­
ment of any motor vehicle is a potentially haz­
ardous area ¢ A .
A WARNING
- Switch off the engine.
- Switch off the ignition.
- Apply the parking brake.
- Put the gear lever in neutral or selector in P.
- Wait for the engine to cool down.
- Keep children away from engine compart-
ment.

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Never spill fluids on a hot engine. These flu­
ids can cause a fire (e.g. radiator anti­
freeze).
- Take care not to cause short circuits in the
electrical system, especially when working
on the battery.
- When working in the engine compartment
be aware that the radiator fan may start
running suddenly, even if the ignition is
switched off -risk of injury!
- Do not unscrew the cap on the expansion
tank when the engine is hot. The cooling
system is under pressure.
- Protect face, hands and arms by covering
the cap with a large, thick rag to protect
against escaping coolant and steam.
- Never remove the engine cover panel -risk
of burns!
- If any tests have to be performed with the
engine running, there is an extra safety risk
from the rotating parts, such as the drive
belts, alternator and radiator fan, etc., and
from the high-voltage ignition system.
- Vehicles with automatic gearbox: Never
open the throttle inadvertently (for instance
by hand from the engine compartment) if a
gear is engaged while the vehicle is station­
ary with the engine running. The vehicle will
otherwise start moving immediately and
could cause an accident.
- Observe the following additional warnings if
work on the fuel system or the electrical
system is necessary:
- Do not smoke.
- Never work near naked flames.
- Always keep an approved fire extinguisher
immediately available.
- Any work on the batteries and electrical sys­
tem in your vehicle entails a risk of injury
and chemical burns in addition to danger of
accident or fire. For this reason, you must
have the work carried out by a qualified
workshop.
CD CAUTION
When topping up fluids make sure the correct
fluid is put into the correct filler opening. This Checking
and topping up fluids
can otherwise cause serious malfunctions or
engine damage.
@ For the sake of the environment
Inspect the ground underneath your vehicle
regularly so that any leaks are detected at an
early stage. If you find spots of oil or other
fluids, have your vehicle inspected in the
workshop.
i Note
On right-hand drive vehicles* some of the
containers/ reservoirs mentioned below are
located on the other side of the engine com­
partment.
Opening/closing bonnet
The bonnet is released from inside the vehicle.
Fig. 212 Detail of footwell on driver's side: Release lever
Fig. 213 Unlocked bonnet: Lever
The wiper arms should be resting on the wind­
screen: make sure they are not in a raised posi-
tion. Otherwise the paint may get damaged.
..,..
245

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CX) Cooling
system
Coolant
The engine cooling system is filled at the factory
with a mixture of conditioned water and coolant
additive. This coolant must not be changed.
The coolant level is monitored by a warning lamp
• ¢page 14. However, we recommend that it
should be checked occasionally.
If you do need to top up the coolant, use a mix­
ture of water and coolant additive. We recom­
mend mixing coolant additive with distilled wa­
ter.
Coolant additive
The coolant additive contains anti-freeze and cor­
rosion protection agent. Only use one of the fol­
lowing coolant additives. It is possible to mix
these additives.
Coolant additive Specification
G13 TL 774
J
G12++ TL 774 G
The amount of coolant additive which needs to
be mixed with the water depends on the temper­
atures to be expected in the winter season. If the
anti-freeze concentration is too low, the coolant
can freeze and cause engine damage.
Cool ant addi· Frost protec-
tive tion
Hot regions min. 40%,
min. -25 °C
max. 45%
Cold regions
min. 50%, max. -40 °C
max. 55%
CD CAUTION
- Have your qualified workshop check the
cooling system before the winter season to
make sure that the anti-freeze concentra­
tion is adequate for the conditions to be ex­
pected. This applies particularly if you drive
into a colder climate zone.
- To prevent damage to the engine, do not
use a different type of anti-freeze additive if
the approved type of additive is not availa- Checking
and topping up fluids
ble. In this case use only water and bring
the coolant concentration back up to the
correct level as soon as possible by putting
in the specified additive.
-Always top up with fresh, unused coolant.
- Radiator sealants must not be added to the
coolant.
Topping up coolant
Fig. 217 Engine compartment: Cap of coolant expansion
tank ;:::;
co
CD
Please refer to the safety notes ¢ A in Working
on components in the engine compartment on
page 244.
Checking the coolant level
... Park your vehicle on a level surface.
.,.. Switch off the ignition.
.,.. Read
off the coolant level on the coolant ex­
pansion tank¢ page 246, Fig. 214. When the
engine is cold, the coolant level should be be­
tween the marks. When the engine is warm, it
may be slightly above the top mark.
Topping up the coolant
Important: The coolant expansion tank must not
be empty ¢(D.
.,.. Wait for the engine to cool down .
.,.. Cover the cap on the expansion tank with a
cloth, and carefully unscrew the cap anti-clock­
wise ¢ ,& .
.,.. Add coolant in the correct concentration
¢ page 249 up to the top mark.
... You should make sure that the fluid level re­
mains stable. If necessary, add more coolant.
... Screw the cap on again tightly.
IJi-
249

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and topping up fluids
Any loss of coolant normally indicates a leak in
the cooling system. Drive to a qualified workshop
without delay and have the cooling system
checked. If there are no leaks in the system, a
loss of coolant can only occur if the coolant boils
and is forced out of the system as a result of
overheating.
A WARNING
- The cooling system is under pressure. Do
not unscrew the cap on the expansion tank
when the engine is hot: you could be scal­
ded by escaping steam.
- The coolant and coolant additive can be a
health hazard. Store the coolant additive in
the original container in a safe place out of
reach of children -risk of poisoning.
- When working in the engine compartment
be aware that the radiator fan may start
running suddenly, even if the ignition is
switched off- risk of injury!
CD CAUTION
Do not add coolant if the expansion tank is
empty. Air could have got into the cooling
system -risk of engine damage! In this case,
do NOT drive on. Obtain professional assis­
tance.
Brake fluid
&
8cm DOT 4 �
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Fig. 218 Engine compartment: Cap of brake fluid reservoir
Please refer to the safety notes ¢ A in Working
on components in the engine compartment on
page 244.
250 Checking
brake fluid level
� Read off the brake fluid level on the brake fluid
reservoir ¢page 246, Fig. 214. The brake fluid
level must be between the MIN and MAX marks
¢_A.
The brake fluid level is also automatically moni­
tored.
Having brake fluid changed
Have the brake fluid changed regularly by a quali­
fied workshop.
A WARNING
- If the brake fluid level is under the MIN
mark, the effectiveness of the brakes and
therefore the safety of the vehicle may be
impaired -risk of accident! Do not drive on.
Obtain professional assistance.
- Heavy use of the brakes may cause a vapour
lock if old brake fluid is left in the system.
This would seriously impair the effective­
ness of the brakes and the safety of the car
- risk of accident!
CD CAUTION
- If the brake fluid level is above the MAX
mark, brake fluid may escape via the cap on
the reservoir in certain circumstances and
cause damage to the vehicle.
- Brake fluid must not be allowed to come in­
to contact with the vehicle's body, other­
wise it will attack the paintwork.
Battery General warnings for batteries
Because of the complexity of the power supply,
any battery work, such as disconnection, replace­
ment, etc. must be carried out by a qualified
workshop ¢ ,& .
The term "vehicle battery" refers to the 12 Volt
battery in your vehicle.
�

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CX) Explanation
of warnings on vehicle battery:
® Wear safety
glasses!
A Battery
acid is extremely corrosive. Wear
protective gloves and safety glasses.
@ Keep
open flames, sparks, uncovered
Lights and Lit cigarettes away from the
battery!
� A
highly explosive mixture of gases may
be given off when the battery is under
charge!
® Keep children
away from batteries and
battery acid.
.&_ WARNING
Any work on the batteries and electrical sys­
tem in your vehicle entails a risk of injury and
chemical burns in addition to danger of acci­
dent or fire. For this reason, you must have
the work carried out by a qualified workshop.
CD CAUTION
If the car is left standing for Long periods,
protect the battery from frost. The battery
will be damaged irreparably if it is allowed to
freeze <=> page 2 51.
@ For the sake of the environment
'8 Batteries contain toxic substances including
sulphuric acid and Lead. Please contact a
qualified workshop if you have any questions.
Vehicle battery
The term "vehicle battery" refers to the 12 Volt
battery in your vehicle.
If the vehicle is not used for long periods
If you do not drive your vehicle for a period of
several days or weeks, the power management
will gradually shut off the on-board systems one
by one, or reduce the amount of current they are
using. This Limits the amount of power consumed
and helps to ensure reliable starting even after a
Long period <=> page 118. Certain convenience fea­
tures, such as interior Lighting or electric seat ad­
justment, may not be available. These functions Checking
and topping up fluids
will be restored when you switch on the ignition
and start the engine.
Even though some systems are deactivated auto­
matically, certain electrical equipment continues
to draw current even when the ignition is off. If
the vehicle is Left standing for Long periods, this
can result in total battery discharge. If the vehi­
cle battery is allowed to discharge completely, an
internal chemical reaction damages the battery
irreparably. To avoid this, the vehicle battery
should be recharged at Least once a month
<=> page 251. Please contact a qualified workshop
if you have any questions.
Winter conditions
Cold weather is very hard on the vehicle battery.
The starting capacity may be reduced as a result.
For this reason, you should have the vehicle bat­
tery checked by a qualified workshop before the
start of winter.
Charging the vehicle battery
Fig. 219 Engine compartment: Terminals for jump leads
and battery charger
Important: Only use chargers with a maximum
charge voltage of 14.8 V (the battery cables do
not have to be disconnected).
� Note the warnings c:> A in General warnings
for batteries on page 251 and<=> A_ .
� Switch
off all electrical equipment and the igni­
tion.
� Open the bonnet<=> page 245.
� Open the red cap on the positive terminal
<=>Fig. 219.
� Connect the charger cables to the jump-start
terminals as specified <=> Fig. 219.
�
251

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and topping up fluids
... Now connect the battery charger to the mains
and switch on.
... After charging the battery: switch off the bat-
tery charger and disconnect the mains cable .
... Detach the charger cables from the terminals.
... Refit
the red cap onto the positive terminal.
... Close the bonnet ¢page 245.
A WARNING
- A highly explosive mixture of gases may be
given off when the battery is under charge.
Only charge the vehicle battery in a well
ventilated area.
- When it is discharged the vehicle battery
can freeze at temperatures around 0°
(. You
must not use a vehicle battery which has
frozen, even after it has thawed, because
the ice may have cracked the battery casing
and allowed the battery acid to escape -risk
of explosion and chemical burns! Please
contact a qualified workshop if you have any
questions.
- Do not connect or disconnect the charging
cables during the charging process -risk of
explosion!
1 Note
- Use only the terminals in the engine com­
partment to charge the vehicle battery.
- Before you charge the vehicle battery, al­
ways read and follow the manufacturer's in­
structions for using the battery charger.
Windscreen washer
Fig. 220 Engine compartment: Cap of windscreen washer
container
252 �
0
>
u..
co The
container for the windscreen washer@ con­
tains the cleaning fluid for the windscreen and
the headlight washer system* ¢ page 246,
Fig. 214. For the container capacity, please refer
to¢ page 288 .
Clean water should be used when topping up. If
possible, use soft water to prevent scaling on the
washer jets. Always add washer fluid to the wa­
ter. In cold weather you should add anti-freeze to
the water to prevent it from freezing.
CD CAUTION
- The anti-freeze concentration must be
matched to the climate of the country in
which you are driving. If the concentration
is too high, damage to the car may result.
- Never put in radiator anti-freeze or other
additives.
- Never use washer fluid which contains paint
thinners or solvents as it can damage the
paintwork.
Service interval display
The service interval display detects when the
next service is due for your vehicle .
There are two service interval display levels:
- Inspection or oil change reminder: After a cer­
tain mileage, a service reminder will appear on
the infotainment display each time the ignition
is switched on/off. The distance or time re­
maining will be shown briefly.
- Inspection or oil change due: When your vehi­
cle is due for an inspection, oil change or both,
the corresponding reminder Inspection due!,
Oil change due! or Oil change and inspection
due! will appear briefly after you switch the ig­
nition on/off.
Checking the service intervals
You can look up the distance and time remaining
until the next oil change and next service inspec­
tion. Select the following on the infotainment
system: IM EN u I button > Car > left control but­
ton > Servicing & checks > Service intervals.
Applies to: vehicles with flexible oil change serv­
ice