check engine light AUDI TT COUPE 2014 Owner's Manual

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and topping up fluids
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. 208 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. 208.
Em ission control
systems
Catalytic converter
Applies to vehicles with petrol engine: The vehi­
cle must only be used with unleaded petrol; oth­
erwise the catalytic converter will be irreparably
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 die­
sel particulate filter can filter out almost all soot
particles contained in the exhaust gas. In normal
driving conditions the filter is self-cleaning.
Should the self-cleaning function of the filter not
be able to operate, e.g. when the vehicle is con­
tinuously used only for short trips, the filter be-
220 comes
obstructed with soot and the symbol Cl
for the diesel particulate filter lights up
¢page 15.
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 (cata­
lytic converter or diesel particulate filter),
do not park the vehicle where the exhaust
can come into contact with flammable ma­
terials under the car (e.g. on grass or at the
forest edge) -risk of fire!
- Do not apply any undersea[ 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 WARNING
- Switch off the engine.
- Switch off the ignition.
- Apply the parking brake.
- Pu t 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
could otherwise start moving immediately
and possibly cause an accident.
- Observe the following additional warnings if
work on the fuel system or the electrical
system is necessary:
- Always disconnect the battery.
- Do not smoke.
- Never work near naked flames.
- Always keep an approved fire extinguisher
immediately available.
CD CAUTION
When topping up fluids make sure the correct
fluid is put into the correct filler opening. This
can otherwise cause serious malfunctions or
engine damage. Checking
and topping up fluids
® 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.
{D) 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 the bonnet
The bonnet is released from inside the vehicle.
Fig. 209 Footwell on driver's side: Release lever
Fig. 210 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.
� With the driver's door open, pull the lever un­
der the dashboard in the direction indicated (ar­
row) ¢ Fig. 209.
� Lift the bonnet slightly¢.&_.
11111>
221

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.... Coolant
addi-Frost protec-
tive tion
Countries with min. 40 %,
min. -25 °C
warm climate max. 45 %
Countries with min.
50 %,
max. -40 °C
cold climate max.
60 %
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
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. 214 Engine compartment: Cap of coolant expansion
tank
Checking coolant level
.. Park
your vehicle on a level surface .
.. Switch off the ignition .
.. Read off the coolant level on the coolant expan­
sion tank ¢ page 222, Fig. 211. When the en­
gine is cold, the coolant level should be be­
tween the marks. When the engine is warm, it
may be slightly above the top mark. Checking
and topping up fluids
Topping up coolant
Impor tant: 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 224 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.
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 sys­
tem -risk of engine damage! In this case, do
NOT drive on. Obtain professional assistance .
225

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and topping up fluids
Brake fluid
&
8cm DOT 4 0
0
Fig. 215 Engine compartment: Cap of brake fluid reservoir
Checking brake fluid level
The brake fluid Level must be between the MIN
and MAX marks on the reservoir ¢ page 222,
Fig. 211.
If the Level goes down noticeably in a short time,
or drops below the MIN mark, there may be a
Leak in the brake system. Obtain professional as­
sistance. The brake fluid Level is also monitored
via a warning Lamp on the infotainment display
¢page 11.
In right-hand drive vehicles the brake fluid reser­
voir is on the other side of the engine compart­
ment.
Changing brake fluid
Your vehicle's Service Schedule will tell you the
regular intervals at which the brake fluid is due
for renewal. We recommend that you have the
brake fluid changed by a qualified workshop dur­
ing a service.
A WARNING
- Brake fluid is poisonous; it must be stored in
the sealed original container in a safe place
out of the reach of children.
- Heavy use of the brakes may cause a vapour
Lock if the brake fluid is left in the system
for too Long. This would seriously affect the
efficiency of the brakes and the safety of the
car -risk of accident!
226 CD
CAUTION
Brake fluid must not be allowed to come into
contact with the vehicle's body, otherwise it
will attack the paintwork.
Battery General notes
ALL work on batteries requires specialist knowl­
edge.
The battery is virtually maintenance-free. It is
checked as part of the Inspection Service.
When an airbag is triggered, the battery will, un­
der certain circumstances, be disconnected from
the on-board power supply for safety reasons
¢ .&.. in General notes on airbag system on
page 209.
Disconnecting the battery
The battery should always be Left connected. If
the battery is disconnected, some of the vehicle's
functions will become inoperative (e.g. electric
windows). These functions will require resetting
after the battery is reconnected. For this reason,
the battery should only be disconnected from the
vehicle's electrical system when absolutely nec­
essary.
If the vehi cle 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 106. Certain convenience fea­
tures, such as interior Lighting or electric seat ad­
justment, may not be available. These functions
will be restored when you switch on the ignition
and start the engine. Even though some systems
are deactivated automatically, certain electrical
equipment continues to draw current even when
the ignition is off. If the vehicle is Left standing
for several months, this can result in total bat-
tery discharge. If the battery is allowed to dis­
charge completely, an internal chemical reaction
..,_

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the battery. To avoid this, the battery
should be recharged at least once a month
¢ page 228. Do not disconnect the battery; oth­
erwise the anti-theft alarm system* will be out of
operation.
Winter conditions The battery is drained more in cold weather,
which means that the starting power is reduced.
For this reason, have the battery checked and
charged if necessary before the start of winter.
A WARNING
-
-All work on batteries requires specialist
knowledge. For queries regarding the vehi­
cle battery please seek the assistance of a
qualified workshop -risk of chemical
burns / risk of explosion!
- The battery must not be opened. Do not at­
tempt to make any changes to the electro­
lyte level of the battery. Otherwise, there is
a risk that a mixture of oxygen and hydrog en
gas can accumulate and cause an explosion.
Important safety warnings for handling a
car battery
All work on batteries requires specialist knowl­
edge.
The vehicle battery is located under the floor
panel in the luggage compartment.
® 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 is giv-
en off when the battery is under charge!
® Keep
children away from the battery and
battery acid.
A WARNING
Always be aware of the danger of injury and
chemical burns as well as the risk of accident Checking
and topping up fluids
or fire when working on the battery and the
electrical system.
- Wear safety glasses. Do not allow acid or
lead particles to come into contact with
eyes, skin or clothing.
- Battery acid is extremely corrosive. Wear
protective gloves and safety glasses. Do not
tilt the battery -acid can leak out of the va­
pour vent. If electrolyte should splash into
the eyes rinse at once for several minutes
using clear water. Then seek medical care
immediately. Neutralize any acid splashes
on the skin or clothing with soap solution,
and rinse off with plenty of water. If acid is
swallowed by mistake, consult a doctor im­
mediately.
- Keep open flames, sparks, uncovered lights
and lit cigarettes away from battery. Avoid
sparks (including those from static charges)
when handling cables and electrical equip­
ment. Never cross the battery poles. The re­
sulting high-energy sparks can cause injury.
-A highly explosive mixture of gases is given
off when the battery is under charge. Only
charge battery in a well ventilated area.
- Keep children away from the battery and
battery acid.
- Switch off all electrical equipment and the
ignition before starting any work on the ve­
hicle's electrical system. The minus cable of
the battery must be disconnected. When
changing a light bulb, it is sufficient to only
turn off the light.
- Before disconnecting the battery, turn off
the anti-theft alarm system*! Otherwise the
alarm will be triggered.
- When disconnecting the battery from the
vehicle's electrical system, first disconnect
the minus cable and then the plus cable.
- Before reconnecting the battery, turn off all
electrical equipment. First connect the plus
cable, then the minus cable. The battery ca­
bles must NOT be connected to the wrong
battery poles -this can cause an electrical
fire.
- Never charge a frozen or thawed out battery
- risk of explosion and chemical burns! A
battery must be replaced once it has frozen.
..,..
227

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and topping up fluids
When it is discharged the battery can freeze
at temperatures around 0°
(.
- Make sure that the vapour hose is always at­
tached to the battery.
- Never use a damaged battery -risk of explo­
sion! Replace a damaged battery immedi­
ately.
- Never disconnect the car's battery with the
engine running or with the ignition turned
on, otherwise the electrical system or elec­
trical components will be damaged.
- Do not expose the battery to direct sunlight
over a Long period of time, as the intense ul­
traviolet radiation can affect the battery
housing.
- If the car is Left standing for Long periods,
protect the battery from frost. The battery
will be destroyed if it is allowed to freeze
¢page 228.
- When the doors are opened the windows
are automatically lowered by approximately
10 mm. This function is not available if the
battery is disconnected, and the door seal
and window may be damaged as a result.
Charging the battery
Terminals for charging the battery are fitted in
the engine compartment.
Fig. 216 Engine compartment: Terminals for jump leads
and battery charger
... Note the warnings ¢.&. in Important safety
warnings for handling a car battery on
page 227 and r=;, ,&..
... Switch off all electrical equipment and the igni­
tion.
228 ...
Open the bonnet ¢page 221.
... Open the red cap on the positive terminal
¢Fig. 216.
... Connect the charger cables as specified to the
jump-start terminals (terminal with red cap=
"positive", terminal with hexagon = "nega­
tive").
... 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.
... Now disconnect the charger cables.
... Refit the red cap onto the positive terminal.
... Close the bonnet r=;,page 222.
When it is discharged the battery can freeze at
temperatures around 0°
C. You must not use a
battery which has frozen, even after it has
thawed, because the ice may have cracked the
battery casing and allowed the battery acid to es­
cape r=;,.&..
Charging the battery
Only use battery chargers with a maximum
charge voltage of 14.8 V (the battery cables do
not have to be disconnected). The battery must
not be opened while you are charging it.
Important: Before you charge the battery make
sure you read the manufacturer's instructions for
using the battery charger.
.&_ WARNING
Always replace a frozen battery. Never re­
charge it -risk of explosion!
{D Note
Use only the terminals in the engine compart­
ment to charge the battery.
Replacing the battery
Your vehicle is equipped with an intelligent pow-
er management system to control the distribu-
tion of electrical energy r=;, page 106. The power
management function ensures that the battery is
charged much more efficiently than on vehicles
without a power management system. For this
additional power to be available after replacing
.,.

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battery, we recommend that the replacement
battery used is of the same make and type as the
original-equipment battery. After changing the
battery, the power management system must be
initialised by a qualified workshop to ensure that
the replacement battery is charged to an opti­
mum level.
A replacement battery must have the same ca­
pacity, voltage (12 V) and current rating. It must
also have the same dimensions as the original,
factory-fitted battery and have sealed caps. The
battery must comply with the standards
TL 825 06 (dated April 2008 or later) and
VW 7 50 73 (April 2010 or later).
Since the battery is difficult to access, we recom­
mend having it replaced by an Audi dealer or
qualified workshop.
CD CAUTION
- Your vehicle is equipped with a special deep
cycle battery (e.g. AGM type). The on-board
electronic systems may develop problems if
you fit a different type of battery. For this
reason, if you need to replace the vehicle
battery, make sure that the specifications of
the new battery match the original exactly.
- Make sure that the vent hose is always at­
tached to the original opening on the side of
the battery. Gases or battery acid can other­
wise escape and possibly cause damage.
- The battery holder and clamps must always
be correctly secured.
- Before starting any work on the battery, al­
ways observe the warnings listed under
¢ page 227, Important safety warnings for
handling a car battery.
@ For the sake of the environment
"S Batteries contain toxic substances including
sulphuric acid and lead. They must be dis­
posed of appropriately and must not be put
together with ordinary household waste.
Make sure the battery removed from the vehi­
cle cannot tip over. Otherwise, sulphuric acid
could escape. Checking
and topping up fluids
Windscreen washer
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Fig. 217 Engine compartment: Cap of windscreen washer
container
The container for the windscreen washer Q con­
tains the cleaning fluid for the windscreen and
the headlight washer system* ¢ Fig. 217,
¢page 222, Fig. 211. Container capacity
¢page 258.
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 water
(with anti-freeze additive in winter).
CD CAUTION
- 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.
Fig. 218 Instrument cluster display: Service interval dis­
play (example)
There are two service interval display levels:
229

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WARNING
Insufficient tread depth or different tread
depths on different wheels reduce safety. This
is particularly evident in vehicle handling,
when there is a risk of aquaplaning in deep
puddles of water and when driving through
corners. Braking is also adversely affected -
risk of accident!
Tyre pressure
Audi V V
Fig. 220 End face of driver's door: Sticker listing the tyre
pressures
The correct inflation pressures for tyres fitted at
the factory and for the compact temporary spare
wheel* are specified on a sticker. The sticker
¢ Fig. 220 is on the end face of the driver's door.
@ Tyre size
@ Tyre pressure for the front wheels
© Tyre pressure for the rear wheels
(D Tyre pressure if vehicle is partially loaded
@ Tyre pressure if vehicle is fully loaded
@ Tyre pressure for the compact temporary
spare wheel*
If you intend to drive the vehicle with a partial
load, adjust the tyre pressures to the specified
setting (D. Should you wish to drive with a full
load, you must increase the tyre pressure to the
specified maximum @
¢.&,.
.
Checking / adjusting the tyre pressures
.. Check
the tyre pressures at least once a month
and, in addition, before starting a long journey. Wheels
and tyres
.. The tyre pressures should only be checked when
the tyres are cold. The slightly raised pressures
of warm tyres must not be reduced.
.. Refer to the sticker ¢ Fig. 220 for the correct
tyre pressures according to the load the vehicle
is carrying.
.. If necessary , adjust the tyre pressure.
.. Vehicles with tyre pressure loss indicator*:
Store the new tyre pressures on the infotain­
ment system ¢ page 235 .
.. Check the pressure of the spare wheel* /com­
pact temporary spare wheel*. Keep the spare
tyre inflated to the highest pressure approved
for the tyre.
A WARNING
Always adjust the tyre pressures to match
your driving style and the load the vehicle is
carrying.
- Excessive loads can cause you to lose control
of the vehicle -risk of accident!
- Under-inflated tyres flex more and can over­
heat at high speeds or when the vehicle is
carrying a heavy load. This could cause a
tyre blow-out and you could lose control of
the vehicle -risk of accident!
- Incorrect tyre pressures increase tyre wear
and adversely affect vehicle braking and
handling -risk of accident!
CD CAUTION
Replace any lost valve caps to prevent dam­
age to the tyre valves.
@ For the sake of the environment
Under-inflated tyres will increase the fuel con­
sumption.
@ Note
We recommend using the tyre pressure set­
ting (Dor@ for partial loads.
Winter tyres
In winter road conditions winter tyres will consid­
erably improve the car's handling. Due to their
type of construction (width, rubber compound,
IJII>
233

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General notes
... If your vehicle experiences technical problems,
stop the car well away from moving traffic. If
you have a flat tyre, you should park the car on
a level surface. Be particularly careful if you are
on a slope .
... Apply the parking brake .
... Switch the hazard warning lights on .
... Place the warning triangle in a visible location
¢page 241.
... Instruct all passengers to leave the car when it
is safe to do so. They should wait in a safe place
(for instance behind the roadside crash barrier).
A WARNING
You should note the procedure described
above for your own safety and that of other
road users.
Equipment Warning triangle
Applies to vehicles: with warning triangle
Fig. 221 Luggage compartment: Warning triangle
The factory-supplied warning triangle is stowed
in the luggage compartment.
The luggage compartment is specifically de­
signed to hold only the warning triangle supplied
as an Audi Genuine Accessory. Mobility
First-aid kit
Applies to vehicles: with first-aid kit
Fig. 222 Rear seats: Compartment for first-aid kit
The first-aid kit is located in a compartment next
to the right side rear seat.
Fire extinguisher
Applies to vehicles: with fire extinguisher
The factory-fitted fire extinguisher is located in
the footwell on the front passenger's side (se­
cured in a holder).
... Remove the fire extinguisher by pressing on the
tab marked "PRESS".
... To secure the fire extinguisher, put it in the
holder and fasten the securing belt.
Check how the fire extinguisher works before you
need to use it. The instructions for use are shown
on the fire extinguisher.
A WARNING
If the fire extinguisher is not secured properly
it could be catapulted through the vehicle
during driving and braking manoeuvres or in
the event of an accident. This poses a risk of
injur y to occupants.
� Note
The fire extinguisher must comply with legal
requirements. Observe the expiry date of the
fire extinguisher.
241

Downloaded from www.Manualslib.com manuals search engine Fuses
and bulbs
Fuses and bulbs
Fuses Fuses in vehic le interior
Fig. 243 Area near steering column on LHD vehicle: Cover
Fig. 244 Open glove box on RHO vehicle: Cover
Access to the fuses is different on left-hand and
right-hand drive vehicles.
- LHD vehicles: The fuses are located behind a
cover near the steering column ¢Fig. 243.
- RHD vehicles: The fuses are located behind a
cover in the glove box¢ Fig. 244.
Changing fuses
To see whether a fuse has blown, check whether
the metal strip has melted.
Fig. 245 Engine compartment, left-hand side: Fuse cover
254 The
various electrical circuits are protected by
fuses. The fuses are located behind a cover below
the steering wheel and on the left side of the en­
gine compartment.
Fuses in vehicle interior
.. Switch
off the ignition and all electrical equip­
ment .
.. Refer to the following tables to identify the
fuse for the failed component ¢ page 255 .
.. Remove the cover: LHD vehicles c:> page 254,
Fig. 243 or RHD vehicles ¢ page 254, Fig. 244 .
.. Take the plastic clip from inside the fuse cover
in the engine compartment ¢ Fig. 245 .
.. Use the clip to pull out the fuse.
.. Blown fuses should always be replaced with a
fuse of the same rating .
.. Replace the cover.
Fuses in engine compartment
.. Switch off the ignition and all electrical equip­
ment .
.. Refer to the following tables to identify the
fuse for the failed component ¢ page 256 .
.. Release the fuse cover ¢ Fig. 245.
.. Take the plastic clip from inside the fuse cover
¢Fig. 245.
.. Use the clip to pull out the fuse.
.. Blown fuses should always be replaced with a
fuse of the same rating.
Colour coding for fuses
Colour Rating
in amperes
black 1
purple 3
light brown 5
brown 7.5
red 10
blue 15
yellow 20
white or transparent 25
green 30
orange 40