2017 AUDI TT COUPE overheating

Instrumen ts and ind icator ligh ts
Instruments and indicator Lights
Instruments
Audi virtual cockpit (instrument cluster)
The instrument cluster is the central information center for the driver.
Fig. 3 Instrume nt cluster overv iew
(D Eng ine coolant temperature 8
@ Driver information system . . . . . . 19
® Fuel level . . . . . . . . . . . . . . . . . . . . 8
@ Trip odometer reset knob . . . . . . . 23
Coolant temperature indicator
The coolan t temperature display c:> page 8,
fig. 3
(D only functions when the ignition is
switched on. To prevent engine damage, p lease
observe the following notes about the tempera­
ture ranges.
Cold rang e
If o nly the L EDs in the left area of the gauge turn
on, the engine has not reached operating tem­
perature yet. Avoid high engine speeds, full ac­
celerating and heavy engine loads .
Normal range
The engine has reached its operating tempera­
ture once the LEDs up to the center of the gauge
turn on . If the . indicator light in the Infotain­
ment system display turns on, the coolant tem­
perature is too high
c:> page 12.
8
(D Note
-Aux iliary head lights and other accessories in
front of the coo ling-a ir intake impa ir the
cooling effect o f the coolant. This increases
the risk of the engine overheating during high outside temperatures and heavy en ­
gine load.
- T he front spoiler a lso helps to distribute
cooling air correctly while driving . If the
spoiler is damaged, the cooling effect will
be impaired and the risk of the eng ine over­
heating w ill increase. See an authorized
Audi dealer or author ized Audi Service Fa­
cility for assistance .
Fuel level
The indicator @ only func tions when the ignition
i s sw itched on. If the fuel level drops below 1.9
gal (7
L), a red LED wi ll light up and the rD indi­
cator light will turn on
c:> page 16 . The LED
blinks red when the fuel level is very low.
The fuel tank capacity of your veh icle is listed in
the
Techni cal Dat a sectio n c:> page 299. ..,_

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(D Note
Never drive until the tank is completely emp­
ty. The irregular supply of fuel that results
from that can cause engine misfires . Uncom­
busted fuel will then enter the exhaust sys­
tem. This can cause overheating and damage
to the catalytic converter .
Indicator lights
Description
The indicator lights in the instrument cluster
blink or turn on. They indicate functions or mal­
functions.
With some indicator lights, messages may ap­pear and warning signals may sound. The indica­
tor lights and messages in the display can be cov­
ered by other displays. To show them again, se­ lect the tab for the indicator lights and messages
using the multifunction steering wheel
c;, page 19. If there are several malfunct ions,
you can display them one at a time using the
thumbwheel.
Some ind icator lights in the display can display in
several colors .
Overview
Some indicator lights turn on briefly as a function
check whe n you switch the ign ition on . These sys­
tems are marked with a
,I in the following tables.
If one of these indicator lights does not turn on,
there is a ma lfunction in that system.
Red indicator lights
---------------
US A models :
Brake system ./ c;, page 10
Canada models:
Brake system ./ c;, page 10
USA models : electromechanical
parking brake¢
page 11
Canada models: electromechanical
parking brake¢
page 11
Cooling system
<=>page 12
Instruments and indicator lights
Engine oil pressure
c;,page 12
Alternator
¢ page 13
Engine stop while driving
¢page 13
Safety be lt
c;, page 13 c;, page 13
Electromechanical steering./
c;,page 91
Steering lock
¢page 13
Central indicator light
c;,page 14
Engine start system
c;,page 14
Transmission malfunction
c;, page 68
Rear spoiler
c;,page 92
Yellow indicator lights
Electronic Stabilization Contro l (ESC)
,I c;, page 14
Electronic Stabilization Control (ESC)
./ c;, page 14
USA models: anti-lock braking sys­
tem (ABS)./
c;, page 14
Canada models: anti-lock braking
system (ABS) ./
c;, page 14
Safety systems ,I
c;,page 15
USA models:
Brake pads c;, page 15
Canada models:
Brake pads c;, page 15
Electromechanical parking brake
c;,page 11
Tire pressure monitoring system../
<=>page 273
Tire pressure monitoring system
<=>page 273
9

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nearest authorized Audi dealer or authorized
Audi Service Facility and have the malfunction
corrected.
@ Tips
For additional information on ESC and ABS,
see
~ page 88.
(0) Brake pads
EiJ Brake pads: wear limit reached. You can con­
tinue driving. Please contact Service
The brake pads are worn.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
brake pads checked.
Applies to: USA models
The EiJ indicator light turns on together with the
11111 indicator light
.!f Safety systems
The El indicator light monitors the safety sys­
tems.
Safety system
If them indicator light turns on or blinks, there
is a malfunction in a safety system .
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected.
_& WARNING
Have the safety systems inspected immedi­
ately. Otherwise, there is a risk that the sys­
tems may not activate during a collision,
which increases the risk of serious injury or death.
c±:, Engine control
-
If the II indicator light turns on if there is a mal­
function in the engine control.
Drive slowly to an authorized Audi dealer or au­
thorized Audi Service Facility to have the engine
checked.
Instruments and indicator lights
o Malfunction indicator lamp (MIL)
The malfunction indicator lamp (MIL) is part of
the On Board Diagnostic system (OBD II). The
¢'4 c;ymbol turns on when the ignition is switched
on and turns off again once the engine is started
and running at a steady idle speed. This indicates
that the MIL is functioning correctly.
The indicator light turns on if there is a malfunc­
tion in the engine electronics. See an authorized
Audi dealer or authorized Audi Service Facility to have the malfunction corrected .
For additional information, see
c::> page 17.
!?i Engine speed lim itation
Applies to: vehicles with engine speed limitation
(II maximum engine speed: XXXX rpm
The engine speed is automatically limited to the
speed displayed in the driver information system.
This protects the engine from overheating .
The engine speed limitation deactivates once the
engine is no longer in the critical temperature
range and you have released the accelerator ped­
al once.
If the engine speed limitation was activated by
an engine control malfunction, the
II indicator
light also turns on. Make sure the engine speed
does not go above the speed displayed, for exam­
ple when downshifting. Drive to an authorized
Audi dealer or authorized Audi Service Facility im­
mediately to have the malfunction corrected.
~ .. Engine oil level (min. )
II Please check oil level
You may continue driving for the time being.
Check the engine oil level as soon as possible
c::> page246.
-If the engine oil level is too low, add engine oil
~page 248.
- If the engine oil level is correct and the indica­
tor light still turns on, drive at low engine
speed to an authorized Audi dealer or author­
ized Audi Service Facility .
15

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.
56
(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.

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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 risk 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 on the cap .
- To reduce the risk of burns, do not allow any
antifreeze or coolant to drip onto the ex­
haust system or hot engine components .
The ethylene g lycol in engine coolant can
catch fire under certain circumstances.
- The coolant add itive and the coolant can be
dangerous to your health. For this reason,
keep the coolant in the original container
and away from children. There is a risk of
poisoning.
- When working in the engine compartment,
remember that the radiator fan can sw itch
on even if the ignition is switched off, which
increases the risk of injury.
(D Note
Do not add coolant if the expansion tank is
empty . Air could enter the cooling system and
damage the engine. If this is the case, do not
cont inue driving. See an authorized Audi deal­
er or authorized Audi Service Facility for assis­
tance.
Checking and Filling
Brake fluid
Fig. 193 En gi ne compartment: cover on the b rake fluid
rese rvoir
Observe the safety precautions QA in Working
in the engine compartment on page 244 .
Checking the brake fluid level
.,. Read the brake f luid level on the brake fluid
reservoir
Q page 246, fig . 189. The brake fluid
level must be between the MIN and MAX mark­
ings
Q A .
The brake fluid level is monitored automatically.
Changing the brake fluid
Have the brake fluid changed regularly by an au­
thorized Audi dealer or authorized Audi Service Facility.
.&_ WARNING
- If the brake fluid level is below the MIN
marking, it can impair the brak ing effect
and driving safety, which increase the risk of
an accident. Do not continue driving. See an
authorized Audi dealer or authorized Audi
Serv ice Facility for assistance.
- If the brake fluid is old, bubbles may form
in the brake system during heavy braking.
This would impair braking performance and
driving safety, which increases the risk of an
accident .
- To ensure the brake system functions cor­
rectly, only use brake fluids that comply
with VW standard 501 14 or
FMVSS-116 DOT 4.
251