2014 AUDI TT COUPE engine overheat

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technology
The effectiveness of the brakes can also be tem­
porarily reduced if the car is driven for some dis­
tance without using the brakes when there is a
lot of salt on the road in winter. The layer of salt
that accumulates on the discs and pads can be re­
moved with a few cautious brake applications.
Corrosion
There may be a tendency for dirt to build up on
the brake pads and corrosion to form on the discs
if the car is used infrequently, or if you only drive
low mileages without using the brakes very
much.
If the brakes are not used frequently, or if corro­
sion has formed on the discs, it is advisable to
clean off the pads and discs by braking firmly a
few times from a moderately high speed ¢.&,..
Faults in the brake system
If the brake pedal travel should ever increase
suddenly, this may mean that one of the two
brake circuits has failed. Drive immediately to the
nearest qualified workshop and have the fault
rectified. On the way to the dealer, be prepared
to use more pressure on the brake pedal and al­
low for longer stopping distances.
Low brake fluid level
Malfunctions can occur in the brake system if the
brake fluid level is too low. The brake fluid level is
monitored electronically.
Brake servo
The brake servo amplifies the pressure you apply
to the brake pedal. It only works when the engine
is running.
& WARNING
- When applying the brakes to clean off de­
posits on the pads and discs, select a clear,
dry road. Be sure not to inconvenience or en­
danger other road users; do not risk an acci­
dent.
- Never let the car coast with the engine
switched off (this can cause accidents).
102 CD
CAUTION
- Never let the brakes "drag" by leaving your
foot on the pedal when you do not really in­
tend to brake. This overheats the brakes, re­
sulting in longer stopping distances and
greater wear.
- Before driving down a long, steep gradient,
it is advisable to reduce speed and move the
selector lever to a lower gear. In this way
you will make use of the engine braking ef­
fect and relieve the load on the brakes. If
you still have to use the brakes, it is better
to brake firmly at intervals than to apply the
brakes continuously.
Note
- If the brake servo is out of action, you must
apply considerably more pressure to the
brake pedal than you normally would.
- If you wish to equip the car with accessories
such as a front spoiler or wheel covers, it is
important that the flow of air to the front
wheels is not obstructed, otherwise the
brakes can overheat.
Electronic stabilisation
control (ESC)
Description
The electronic stabilisation control (ES() increa­
ses the car's stability. It reduces the tendency to
skid and improves the stability and road holding
of the vehicle. The ESC detects critical handling
situations, such as understeer, oversteer and
wheelspin on the driven wheels. It stabilises the
vehicle by braking individual wheels or by reduc­
ing the engine torque. The indicator lamp Ii] in
the instrument cluster starts flashing as soon as
the ESC intervenes.
The following systems are integrated in the ESC:
Anti-lock brake system (ABS)
ABS prevents the wheels from locking up under
braking until the vehicle has reached a virtual
standstill. You can continue to steer the vehicle
even when the brakes are on full. Keep your foot
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the brake pedal and do not pump the brakes.
You will feel the brake pedal pulsate while the
anti-lock brake system is working.
Brake assist system
The brake assist system can shorten the braking
distance. The braking force is automatically boos­
ted if you press the brake pedal quickly in an
emergency. You must keep pressing the brake
pedal until the danger has passed.
Traction control system (ASR)
In the event of wheelspin, the traction control
system reduces the engine torque to match the
amount of grip available. This helps the car to
start moving, accelerate or climb a gradient.
Electronic differential lock (EDL)
When the EDL detects wheelspin, it brakes the
spinning wheel and directs the power to the oth­
er driven wheel (or wheels on quattro* versions).
This function is not available at high speeds.
To prevent the disc brake of the braked wheel
from overheating, the EDL cuts out automatically
if subjected to excessive loads. The vehicle can
still be driven. The EDL will switch on again auto­
matically when the brake has cooled down.
Steering recommendation
The ESC helps to stabilise the vehicle by changing
the steering wheel torque.
Selective wheel torque control
Selective wheel torque control intervenes when
cornering by braking the wheel(s) on the inside of
the bend individually as required. This enables
precision cornering. The relevant system may not
intervene in the wet or snow.
Multicollision brake assist system
The "multicollision brake assist system" can help
to reduce the risk of skidding and further colli­
sions during an accident. If the airbag control
unit detects that a collision has taken place up-
� wards
of a certain speed, the vehicle is braked by
a'.: the ESC.
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The vehicle will not be braked automatically if:
- the driver presses the accelerator,
- the brake pressure applied by pressing the
brake pedal is higher than the brake pressure
initiated by the system,
- or the ESC, the brake system or the vehicle's
electrical system are not fully functional.
A WARNING
- The grip provided by the ESC and the inte­
grated systems is still subject to the physi­
cal limits of adhesion. Always bear this in
mind, especially on wet or slippery roads. If
you notice the systems cutting in, you
should reduce your speed immediately to
suit the road and traffic conditions. Do not
let the extra safety provided tempt you into
taking any risks when driving -this can
cause accidents.
- Remember that the accident risk always in­
creases if you drive fast, especially in cor­
ners or on a wet or slippery road, or if you
follow too close behind the vehicle in front
of you. Please bear in mind that even the
ESC and the integrated systems cannot
compe nsate for the increased accident risk.
- When accelerating on a uniformly slippery
surface (for instance all four wheels on ice
or snow), press the accelerator gradually
and carefully. The driven wheels may other­
wise start to spin (in spite of the integrated
control systems), which would impair the
car's stability and could lead to an accident.
{D Note
- To ensure that the ABS and ASR systems
work properly, all four wheels must be fit­
ted with identical tyres. Any differences in
the rolling radius of the tyres can cause the
system to reduce engine power when this is
not desired.
- The systems can make noises when they in­
tervene.
- If the indicator lamp DJ orr§J appears,
there may be a malfunction ¢ page 14. -
103

Downloaded from www.Manualslib.com manuals search engine Checking
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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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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Please observe the relevant regulations.
Tyre repairs
Applies to vehicles: with tyre repair kit
Fig. 225 Components of the tyre repair kit
Fig. 226 Connecting the tyre repair kit
Important: The tyre repair kit must be at hand
and ready for use¢ page 242.
Setting up the tyre repair kit LC'>
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.,. Open the flap @on the compressor ¢ Fig. 225.
.,. Pull the connector @ and the compressor hose
® including the pressure gauge out of the
housing.
.,. Screw the compressor hose® onto the flange
@ of the tyre sealant can (D.
.,. Place
the tyre sealant can (flange facing down)
into the opening ® on the flap of the compres­
sor.
.,. Unscrew the dust cap from the valve of the
damaged tyre.
.,. Screw the filler hose@ onto the valve (J)
¢Fig. 226.
.,. Insert the connector @¢ Fig. 225 into a socket
in the vehicle.
.,. Switch on the ignition. Mobility
Inflating the tyre
.,. Move
the switch @¢ Fig. 226 on the compres­
sor to position I.
.,. Pump the tyre up to 2.0 to 2.5 bar and monitor
the pressure shown on the pressure gauge.
.,. If the tyre pressure remains lower than the val­
ue specified above, remove the filler hose and
drive 10 metres forwards or backwards at a low
speed so that the sealant can spread evenly in
the tyre. Now pump the tyre up again ¢_&..
A WARNING
- Please observe the manufacturers' safety
notes on the compressor and the instruc­
tions supplied with the tyre sealant can.
- If it was not possible to build up a tyre pres­
sure of 2.0 bar within 6 minutes this means
that the tyre is too badly damaged. Do not
drive on.
- Seek professional assistance if the repair of
a tyre puncture is not possible with the seal­
ing compound.
(!)) Note
Do not use the compressor for longer than
6 minutes at a time, as it could overheat.
When the compressor has cooled down, you
can use it again.
After repairing a tyre
Applies to vehicles: with tyre repair kit
.,. Affix
the sticker "max. 80 km/h", which is en­
closed with the tyre repair kit, to the dashboard
where the driver will see it.
.,. After about 10 minutes, stop to check the tyre
pressure.
.,. If tyre pressure is less than 1.3 bar, the tyre is
too badly damaged. Do not drive on .
A WARNING
After repairing a tyre please note the follow­
ing points:
- Do not drive faster than 80 km/h.
- Avoid heavy acceleration, hard braking and
fast cornering .
- Vehicle handling could be impaired.
.,..
243