ECU AUDI TT COUPE 2016 Service Manual

Downloaded from www.Manualslib.com manuals search engine Checking and Filling
& WARNING
If the hood is not latched completely , it could
fly up while you are driving and obstruct your
vision.
- For safety reasons,
the hood must always be
closed securely while driving. Because of
this, always check the hood after closing it
Engine compartment overview
The most important check points.
to make sure it is latched correctly. The
hood is latched
if the front corners cannot
be
lifted.
-If you notice that the hood is not latched
while you are driving, stop immediately and
close
it, because this increases the risk of an
accident .
Fig. 184 Typical layout of the reservo ir and the en gin e oil filler open ing
CD Coolant expansion tank C-t) .... .
@ Engine oil dipstick ............ .
@ Engine oil filler opening ("t:::r.) .. .
@ Brake fluid reservoir ((0)) ...... .
® Jumpstart point(+) unde r a cover,
(-)body ground point ......... .
@ Fuse housing ................ .
0 Washer fluid reservoir (W) ..... .
242
240
240
244
289
285
248
The engine oil dipstick and the engine oil filling
open ing <=>fig. 184 (items @ and @) may be lo-
238
cated in different places depending on the engine
design.
_&WARNING
Read and follow all WARNINGS before check­
ing anything in the engine compartment
~page236.

Downloaded from www.Manualslib.com manuals search engine A WARNING
1-
-When adding oil, do not let oil drip onto hot
engine components. Th ere could be risk of a
fire.
-
You must secure the cap on the oil filler
opening correctly so that oil does not leak
out onto the hot engine and exhaust system
when the engine is r unning, because this is
a fire
hazard.
- Always clean skin thoroughly if it comes into
co ntact with engine oil.
«I) Note
-The oil level must not be above the@
range, because this can cause damage to
the catalytic converter or the engi ne. Con­
tact an authorized Audi dealer or authorized
A udi Service Facility to have excess oil ex­
tracted if necessary.
-
Do no t mix any additional lu bricants into
the engine oil. Damage cause by such addi­
tives is not covered by the warranty.
@ For the sake of the environment
-Oil should never enter the sewer system or
come into contact with the ground.
-
Pay attention to legal requirements when
disposi ng of empty oi l containers.
Changing the engine oil
We recommend that have your oil changed by an
authorized Audi dealer or a qualified service
sta­
tion.
Before you check anything in the engine compart­
ment, alwa y s read and heed all WARNINGS
~page236.
The engine oil must be changed accord ing to the
intervals specified i n your Warranty & Mainte­
nance booklet. This is very important be cause the
lubricati ng properties of o il d iminish gradually
dur ing normal vehi cle use.
Unde r some circumstances the engine oil should
be changed more frequently. Change oil more of­
ten if yo u drive mostly short dis tances, opera te
the vehicle in dusty areas or u nder predominantly
Checking and Filling
stop-and-go traffi c conditions, or have your vehi­
cle where temperatures remain be low freezing
for extended periods.
Dete r
gent additives in the oi l w ill make fresh oil
l
ook dark after the engine has been r u nning for a
short time. This is normal and is not a reason to
change the oil more often than recommended.
Beca u
se of the problem of proper disposal, along
with the special tools and necessary expertise re­
quired, we strongly recommend that you have
you r o
il changed by an authorized Audi dealer or
a q ualified service station.
If you choose to change your oil yourself, please
note the following important information:
A WARNING
~ -
To reduce the risk of personal injury if you
must change the engine oil in you r vehicle
yourself:
-
Wear eye protection.
- To reduce the risk of burns from hot engine
oil, let th e engine cool down to the touch.
-When removing the oil drain plug with your
fingers,
stay as far away as possible. Always
keep your forearm parallel to the ground to
help prevent hot oil from running down your
arm.
-Drain the oil into a container designed for
this purpose, one large enough to hold at
least the total amount of oil in your engine.
-Engine oil is poisonous. Keep it well out of
the reach of children.
-
Continuous contact with used engine oil is
harmful to your skin. Always protect your
skin by washing oil off thoroughly with soap
and water.
CD Note
Never mix oil additives with your engine oil.
These additives can damage your engine and
adversely affect yo ur Audi Limited New Vehi­
cle Warranty.
241

Downloaded from www.Manualslib.com manuals search engine ...... N
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Read and follow the WARNINGS before check­
ing anything
in the engine compartment
Qpage236.
Checking the engine coolant level
""Park your vehicle on a level surface.
"" switch the ignition off.
.. Read the coolant level on the coolant expansion
tank
Q page 238, fig. 184. The coolant level
must be between the markings when the en­
gine
in cold. When the engine is warm it can be
slightly above
the upper marking.
Adding coolant
Requirement: there must be a res idual amount of
coo l
ant in the expans io n tank c:?(i) .
""Let the engine cool down.
.. Place a cloth over the coolant expansion tank
cap and unscrew
the cap counterclockwise
c:?,8..
""Add coolant mixed in the correct ratio
i:?page 242 up to the upper marking.
""Make sure that the fluid level remains stable.
Add more coolant if necessary.
"" Close the cap securely .
A coolant loss suggests a leak. Immediately drive
your vehicle
to an authorized Audi dealer or au­
thorized
Audi Service Facility and have the cool­
ing 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.
.&. 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
w ith
the engine hot. There is a 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 dr
ip onto the ex-
Checking and Filling
ha ust system or hot engine components.
The ethylene glycol in engine coolant can
catch fire under certain circumstances.
- The coolant additive and the coolant can be
dangerous to your health.
For this reason,
keep
the coolant in the original container
away from children. There is a
risk of poi­
soning.
-When working in the engine compartment,
remember
that the radiator fan can switch
on even if
the ignition is switched off, which
increases
the risk of personal injury.
CD Note
Do not add coolant if the expans ion tank is
empty . Air could enter the cooling system and
damage
the eng ine. If this is the case, do not
continu e driving. See an authorized
Audi dea l­
er or authorized
Audi Service Facility for assis­
tance.
Radiator fan
The radiator fan switches on automatically by it­
self.
An auxiliary electric radiator fan switches on and
off depending on coolant temperature and other
vehicle operating conditions.
After you switch
the engine off, the auxiliary fan
can continue running for
up to 10 minutes -even
with
the ignit ion off. It can even switch on again
later by itself c:? & . if
- the temperature of
the engine coolant rises due
to
the heat build-up from the engine in the en­
gine compartment, or
-
the engi ne compartment heats up because the
vehicle is parked in intense sunlight.
.&. WARNING
-To reduce the risk of personal injury never
touch
the radiator fan.
- The auxiliary electric fan
is temperature
controlled and can switch on suddenly even
when
the engine is not running.
243

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Emergency assistance
General information
"'Park th e vehicle as far as possible from moving
traffic in the event of a flat tire. In the event of
a flat tire, park the vehicle on a level surface. It
you are on a steep incline, be especially careful.
"'Set the parking brake.
"'Place the selector lever in the P position.
"'Switch the emergency flashers on.
"'Have the passengers exit the vehicle. They
should move to a safe place, for example be­
hind a
guard rail.
A WARNING
Follow the steps given above. This is for your
protection and the for the safety of other driv­
ers.
Equipment
Vehicle tool kit/tire mobility kit/
compressor
Fig. 196 Luggage compartment: cargo floo r closed
The vehicle tool kit, tire mobility kit and com­
pressor are stored in the luggage compartment
u nder the ca rgo floor cover.
"'Push on the plastic handle and lift up the cargo
floor.
"'Open the cargo floor.
Completely retract the vehicle jack arm before
storing the vehicle jack* .
A WARNING
Improper use of the vehicle jack can ca use se­
rious personal inju ries .
Emergency assistance
- Never use the screw driver hex head to
tighten wheel bolts, since the bolts cannot
attain the necessary tightening torque if you
use the hex head, potentially causing an ac­
cide nt.
- The
factory-supplied jack is intended only
for your vehicle model. Under no circum­
stances should it be used to lift heavy
vehicles or other loads; you risk injuring
yourself.
- Never
start the engine when the vehicle is
raised, which could cause an accident.
-Support the vehicle securely with a ppropri­
ate stands if wo rk is to be performed under­
neat h the vehicle; otherwise, there is a po­
tential risk for injury.
- Never
use the jack supplied with your Audi
on another veh icle, particularly on a heavier
one. The jack is only suitable for use on the
vehicle it came with.
(D Tips
The vehicle jack* in your vehicle is mainte­
nance-free.
Tire mobility kit
Preparation
Applies to: vehicles with tire mobili ty kit
"' Read and follow the important safety precau­
tions<=> page 2 75, General information.
"' Select the P position .
"' Check if a repair with the tire mobility kit is pos­
sible ¢page 275.
Using the tire mobility kit
Applies to: vehicles with tire mobility k it
F
ig. 1 97 Tire : tire damage that cannot be repaired
275

Downloaded from www.Manualslib.com manuals search engine Emergency assistance
car to keep your balance and take care not
to slip.
Raising the vehicle
The vehicle must be li~ed w ith the jock first be­
fore the wheel can be removed.
-fi·--
Fig. 203 Sill panels: markings
Fig.
204 Sill : po sitioning th e ve hicl e jack
... Engage the parking brake to prevent your vehi­
cle from rolling unintentionally.
... Move the selector lever to position P.
... Find the marking (imprint) on the sill that is
nearest the wheel that will be changed. Behind
the marking, there is a lifting point on the sill
for
the vehicle jack.
... Vehicles with a sill: note the position of the sill
when positioning
the vehicle jack o fig. 204.
... Place the vehicle jack (vehicle tool kit) on a firm
surface.
Use a flat, stable support if necessary.
On a slippery surface such as tile, you should
use a non-slip pad (such as a rubber mat) o _&.
... Turn the vehicle jack located under the lifting
point on the sill to raise the jack until its arm@
c:> fig. 204 is located under the designated plas­
tic
mount c:> _&, c:>Q).
... Align the jack so that its arm@o fig. 204 en­
gages in the designated lifting point in the door
sill and the movable base@ lies flat on the
280
ground. The base@ must be vertical under the
lifting point@ .
... Wind the jack up further until the flat tire
comes off the ground c:> _&.
Position the vehicle jack only under the designat­
ed lifting points on the sill c:> fig. 203. There is ex­
actly
one location for each wheel. The jack must
not be positioned at any other location c:> .&,c:>Q).
An unstable surface under the jack can cause the
vehicle to slip off the jack. Always provide a firm
base for the jack on the ground. If necessary
place a
sturdy board or similar support under the
jack. On hard, slippery surfaces (such as tiles)
u
se a rubber mat or similar to prevent the jack
from slipping c:> .&..
A WARNING
- I
-You or your passengers could be injured
while changing a
wheel if you do not follow
these safety precautions:
- Position
the vehicle jack only at the desig­
nated lifting points and align the jack.
Otherwise,
the vehicle jack could slip and
cause an injury if it does not have suffi­
cient hold on the vehicle.
- A
soft or unstable surface under the jack
may cause the vehicle to slip off the jack .
Always provide a firm
base for the jack on
the ground. If necessary, use a sturdy
board under the jack .
-
On hard, slippery surface (such as tiles)
use a
rubber mat or similar to prevent the
jack
from s lipp ing.
-
Only rais e your vehicle with the vehicle
jack provided by
the factory. If you use a
vehicle jack for
another vehicle, your vehi­
cle can slide
and cause injury .
- Changes
in temperature or load can affect
the height of the vehicle.
- Never
start the engine when the vehicle is
raised, which could
cause an accident .
-
Support the vehicle securely with appro­
priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potential risk of injury.

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-To help prevent injury to yourself and your
passengers:
-Do not raise the vehicle until you are sure
the jack is securely engaged.
-Passengers must not remain in the vehicle
when it is jacked up.
- Make
sure that passengers wait in a safe
place away from the vehicle and well away
from
the road and traffic.
- Make
sure jack position is correct, adjust
as necessary and then continue to raise
the jack.
- Changes
in temperature or load can affect
the height of the vehicle.
CD Note
Do not lift the vehicle by the sill. Position the
vehicle jack only at the designated lifting
points on the sill. Otherwise, your vehicle will
be damaged.
Taking the wheel off/installing the spare
Follow these instructions step-by-step for chang­
ing the wheel.
Fig. 205 Chang ing a wheel: using the screwdr ive r handle
(with
the b lade remo ved) to turn the bolts
Fig. 206 Changing a wheel: alignme nt pin inside the top
hole
Emergency assistance
After you have loosened all wheel bolts and
raised
the vehicle off the ground, remove and re­
place
the wheel as follows:
Removing the wheel
.... Use the hexagonal socket in the screwdriver
handle
to completely remove the topmost
wheel bolt and set it aside on a clean surface
¢fig. 205.
.... Screw the threaded end of the alignment pin
from the tool kit hand-tight into the empty bolt
hole ¢fig. 206.
.,. Then remove the other wheel bolts as described
above .
.,. Take off the wheel leaving the alignment pin in
the bolt hole ~CD.
Putting on the compact spare wheel
... Lift the spare wheel and carefully slide it over
the alignment pin to guide it in place ¢(0.
... Use the hexagonal socket in the screwdriver
handle to screw in and tighten all wheel bolts
slightly .
.,. Remove the alignment pin and insert and tight­
en the remaining wheel bolt slightly like the
rest .
.... Turn the jack handle counter-clockwise to lower
the vehicle until the jack is fully released .
.... Use the wheel bolt wrench to tighten all wheel
bolts firmly ¢ page 2 79. Tighten them cross­
wise,
from one bolt to the (approximately) op­
posite one, to keep the wheel centered.
CD Note
When removing or installing the wheel, the
rim could hit the brake rotor and damage the
rotor. Work carefully and have a second per­
son help you.
@ Tips
Never use the hexagonal socket in the handle
of the screwdriver to loosen or tighten the
wheel bolts.
-Pull the reversible blade from the screwdriv­
er before you use the hexagonal socket in
the handle to turn the wheel bolts.
281

Downloaded from www.Manualslib.com manuals search engine Emergency assistance
-When mounting tires with unidirectional
tread design
make su re the tread pattern is
pointed the r ight way¢ page 282.
- The wheel bolts should be clean and easy to
turn .
Check for dirt and corros ion on th e
mating surfaces of both
the wheel and the
hub. Remove all dirt from these surfaces be­
fore remounting t h e wheel.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the
right direction.
Using a spare tire with a tread pattern
intended for use in a specific direction
When using a spare tire with a tread pattern in­
tended for use in a spec ific direction, please note
the following:
- The direct ion of
rotation is marked by an arrow
o n
the side of the tire.
-If the spare tire has to be installed in the incor­
rect direction, use the spare tire only tempora­
rily since the tire will not be able to achieve its
optimum performance charact
eristics wit h re­
gard to aqu aplaning, noise and wear.
-
We r ecommend that you pay particular atten­
tion to this fact during wet weathe r and that
you ad just your speed to match road condi­
tions.
- Replace
the flat tire with a new one and have it
i ns talle d on
your ve hicl e as soon as possibl e to
resto re the han dling adv antages of a unidire c­
tio nal tire.
Notes on wheel changing
Please read the info rmation ¢ page 257 if you
are goi
ng to use a spare tire which is different
from
the tires on your vehicle.
Afte r you change a tire:
-Check the tire pressure on the spare immedi­
ately after installation.
-
Have the wheel bolt tightening torque
checked with a torque wrench as
soon as pos-
282
sible by your authorized Audi dealer or a
qualified service station.
- With
steel and alloy wheel rims, the wheel
bolts are correctly tightened at a torque of
90 ft lb (120 Nm).
- If you notice
that the wheel bolts are corroded
and difficult
to turn while changing a tire,
they should be replaced before you check the
tightening torque.
- Replace
the flat tire with a new one and have
it installed on your vehicle as soon as
possi­
ble. Remount the wheel cover .
Until then, drive with extra care and at reduced
speeds.
8_ WARNING
- I f you are going to equip your vehicle with
tires or rims which differ from those which
were factory insta
lled, then be sure to read
t he informa tion
¢ page 257.
-Always make sure the damaged wheel or
eve n a flat tire and
the jack and tool kit are
pro per ly sec ure d
in the lu ggage compart­
men t and are not loose in the passeng er
com partme nt.
- In an accident or sudde n maneuver they
could fly forw ard, in juri ng anyo ne in the v e ­
hicle.
-
Always s to re damaged whe el, jack and tools
s ecure ly i n t he luggage co m part ment.
Oth­
erwi se, in an accid ent or sudde n m aneu ve r
t hey co
uld fly f orw ard , cau sing inju ry to pa s­
sengers in the vehicle.
-

Downloaded from www.Manualslib.com manuals search engine Emergency situations
CD Note
Improper hook-up of jumper cables can ruin
the generator.
- Always
connect P O SITIVE( +) to POSITIVE
(+),and N EGATIVE( -) to NEGATIVE( -)
ground post of the battery manager control
u
nit.
-
Check that a ll screw p lugs on the battery
cells are screwed in firmly . If not, tighten
plugs p rior to connecting clamp on negative
b at
tery te rminal.
- Pl
ease note that the procedure fo r con nect­
i ng a
jumper cable as describ ed above ap­
plies specifica lly
to the case of yo ur vehicle
being
jump started . When you are giv ing a
ju
mp start to another vehicle , d o not con­
n e
ct the negative(-) c a ble to the negative
(-) terminal o n the dis ch a rged battery @
¢ fig . 214. Instead , securely connect the
negative(-) cable to either a solid metal
component that is fir m ly bolted to the en­
gine block or
to the engine bloc k itself. If
the battery that is bei ng cha rged does not
vent to the outside, escaping battery gas
could ignite and exp lode!
Towing with a tow truck
General hints
Your Audi requires special handling for towing .
The follow ing information is to be used by com­
mercia l
tow truck operators who know how to op­
erate their equipment sa fe ly .
- Never tow your Audi. Towing will cause dam­
age to the engine and transmission.
- Never wrap
the safety chains or winch cables
around
the brake lines.
-
To prevent unnecessary damage, your Audi
must be transported with a flat bed truck.
-
To load the vehicle on to the flat bed, use the
towing loop found in the vehicle tools and at­
tach
to the front or rear anchorage
¢page 290 and ¢page 291.
290
A WARNING
A veh icle being towed is not safe for passen­
gers . Neve r allow anyone to ride in a vehicle
be ing
towed, fo r any reason.
Front towing loop
Fig. 215 Front bum per: co ver
Fig. 2 16 Front bum per: install ing the to win g loop
The threaded opening for the towing loop is lo­
cated behind a cove r on the rig ht side of the front
bumper.
.. Remove the towing loop from the vehicle tool
kit¢ page 275.
.. Press inward on the upper Left side of the cap
to remove it from the b umper¢ fig. 215.
.,. T ighten the towing loop in the threaded o pen­
ing
until i t s tops¢ fig. 216 a nd then tighten it
w it h a
wheel w re nch.
.,. After using, place the towing loop back in the
veh icle tool kit.
A WARNING
If t h e t ow ing loop is not tightened until it
stops when installing, the threads may be
pu lled out when towing the vehicle and that
could cause an accident.

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Rear towing loop
Fig. 217 Rea r bumper: cove r
Fig.
218 Rea r bumper: installing the towing loop
There are threads located behind the right side of
the rear bumper where a towing loop can be in­
stalled.
... Remove the towing loop from the vehicle tool
kit¢poge275.
... To remove from the bumper, push the cap in­
ward in the lower area -arrow-and lift it up in
the upper area ¢ fig. 217 .
... Tighten the towing loop in the threaded open­
ing until it stops ¢fig. 218 and then tighten it
with a wheel wrench .
... After using, place the towing loop back in the
vehicle tool kit .
.&. WARNING
If the towing loop is not tightened until it
stops when installing, the threads may be
pulled
out when towi ng the veh icle and that
could cause an accident .
-
Emergency situations
Loading the vehicle onto a flat bed truck
Fig. 219 Vehicle on flat bed tru ck
Front hook up
... Align the vehicle with the centerline of the car
carrier ramp.
N 00
~ ...
"'Attach the winch hook to the front towline eye
previously installed.
Rear hook up
"'Align the vehicle with the centerline of the car
carrier ramp.
"'Attach the winch hook to the rear towline eye
previously installed.
@Tips
Check carefully to make sure the hook-up is
secure before moving the car up the flatbed
truck ramp .
291

Downloaded from www.Manualslib.com manuals search engine scope of maintenance and repairs which can be
carried
out by vehicle owners. Also, safety and
e n viro n
mental concerns place very strict limits
on the nature of repairs and adjustments to en­
gine and transmission parts which an owner can
perform.
Maintenance,
adjustments and repairs usually re­
quire special tools, testing devices and other
equipment available to specially trained work­
shop personnel in order to assure proper per­
formance, reliability and safety of the vehicle and
its many systems.
Improper maintenance, adjustments and repairs
can impair the operation and reliability of your
vehicle and even void your vehicle warranty.
Therefore, proof of servicing in accordance w ith
the maintenance schedule may be a condition for
upholding a possible
warranty claim made within
the warranty period.
Above all,
operational safety can be adversely af­
fected, creating unnecessary risks for you and
your passengers.
If in doubt about any ser vicing, have it done by
your authorized Audi dealer or any other properly
equipped and qualified workshop. We strongly
urge you to give your authorized Audi dealer the
opportunity to perform all scheduled main te­
nance
and necessary repairs. Your dealer has the
facilities, original parts and trained specialists to
keep your vehicle running properly.
Performing limited maintenance yourself
The follow ing pages describe a limited number of
procedures which can be performed on your vehi­
cle with ordinary
tools, should the need arise and
trained personnel be unavailable. Before per­
forming any of these procedures, always thor­
oughly read all of the applicable text and careful­
ly follow the instructions given. Always rigorously
observe the WARNINGS provided .
Before you check anything in the e ngine com ­
partment , always read and heed all WARNINGS
..... c::> &. and c::> &. in Working in the engine compart-N
c;: ment on page 236.
co ..... U)
"' ..... U) .....
"'
Consumer information
A WARNING
-Serious personal injury may occur as a result
of improperly performed maintenance, ad­
justments or repairs.
-Always be extremely careful when working
on
the vehicle. Always follow commonly ac­
cepted safety practices and general com­
mon sense. Never risk personal injury.
-
Do not attempt any of the maintenance,
checks or repairs described on the following
pages if you are not fully familiar with these
or other procedures with respect to the ve­
hicle,
or are uncertain how to proceed.
-
Do not do any wor k without the proper tools
and equipment. H ave the necessary work
done by your authorized Audi dealer or an­
other properly equipped and qualified work­
shop.
-The engine compartment of any motor vehi­
cle is a
potentially hazardous area. Never
reach into the area around or touch the radi­
ator fan. It is temperature controlled and
can switch on suddenly -even when the en­
gine is off. The
radiator fan switches on au­
tomatically when th e coolant reaches a cer­
tain temperature and will continue to run
until the coolant temperature drops.
- Always switch off the ignition before anyone
gets under the vehicle.
- Always
support your vehicle with safety
stands if it is necessary to work underneath
the vehicle. The jack supplied with the vehi­
cle is
not adequate for this purpose and
could collapse causing serious personal in­
jury.
-
If you must work underneath the vehicle
with
the wheels on the ground, always make
sure the vehicle is on level ground, that the
wheels are always securely blocked and that
the engine cannot be started.
-Always make sure the transmission selector
lever (automatic transmission) is in P (Park
position) and the pa rk brake is applied. .,..
295