2018 AUDI TT ROADSTER check engine

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authorized Audi Service Facility for more in­
formation.
- Do not connect or disconnect the charging
cable while charging because this increases
the risk of an exp losion.
(D Tips
- Only charge the vehicle battery through the
connections in the engine compartment.
- Read all of the manufacturer's instructions
for the charger before charging the vehicle
battery.
Windshield washer system
Fig. 186 Engine compa rtment: washer flu id reservo ir cap
The windshield washer reservoir W contains the
cleaning solution for the windshie ld and the
headlight washer
system* ¢ page 236, fig . 180.
The reservoir capacity can be found in
¢page 288.
To reduce the risk of lime sca le deposits on the
spray nozzles, use clean water with low amounts
of calc ium. A lways add window cleaner to the wa­
ter. When the outs ide temperatures are cold, an
anti -freezing agent should be added to the water
so that it does not freeze.
@ Note
-The concentration of anti-freezing agent
must be adjusted to the vehicle operating
cond itions in the respective climate. A con­
ce ntrat ion that is too high can lead to vehi­
cl e damage.
- Never add radiator anti-freeze or other addi­
tives to the washer fluid.
Checking and Filling
- Do not use a glass cleaner that contains
paint so lvents, because t his could damage
the paint.
Service interval display
The service interval display detects when your ve ­
hicle is due for service .
The service interval display works in two stages:
-Inspection or oil change reminder : after a cer-
tain distance driven, a message appears in the
In fotainment system display each time the ig ­
nition is switched on or off. The remaining dis­
tance or time is disp layed briefly.
- Inspection or oil change due: if your vehicle
has reached an inspection or oil change interval
or both intervals at the same t ime, the mes­
sage
Inspection due! or Oil change due! or Oil
change and inspection due!
appears briefly af ­
ter switching the ignition on/off .
Checking service intervals
You can check the remaining distance or time un ­
t il the next oil change or next inspection. Se lect
in the Infotainment system: the
I MENU I button>
Vehicle > left control button > Service & checks >
Service intervals .
Resetting the indicator
An authorized Audi dea ler or authorized Audi
Service Facility w ill reset the service interval dis­
play after performing service.
If you have ch anged the oi l yourse lf, you must re ­
set the oil change interval.
T o reset the disp lay, select in the Infotainment
system: the
I MENUI button> Vehicle> left con­
trol button >
Service & checks > Service intervals
> Reset oil change interval.
@ Note
-Only reset the oil change indicator if the oi l
was changed.
- Following the service intervals is crit ica l to
maintaining the service life and value of
your vehicle, especially the engi ne. Even if
the mileage on the vehicle is low, do not ex­
ceed the time for the next service.
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Wheels
Displaying tire pressures/temperatures
Applies to: vehicles with tire pressure monitoring system
Requirement: you must be d rivi ng the veh icle .
"'Se lect in the Infotainment system: IMENU I but­
ton
> Service & checks > Tire pre ssur e monitor­
ing > Di splay tire pressure.
- Green:
the current tire pressure and the speci­
fied t ire pressure are approximately the same .
-Yellow: the current tire pressure is too low
compared to the specified tire pressure .
The specified tire press ure is the last tire pres ­
sure that was stored
c> page 264.
Note that t he tire p ressure also de pends on the
temperature of the tire . The tire press ure in­
creases as the engine becomes wa rmer whi le
driving.
A WARNING
Read and follow the important information
and notes
c> page 263.
(D Tips
The tire pressure or temperature is not d is ­
played while the veh icle is stationary and in
adaptation mode. Dashes --.--are shown in
place of the pressu re and temperature.
(D Tire pressure loss
Applies to: vehicles with tire pressure monitoring system
-
If the Rt] indicato r light turns on, the p ressure in
at least one t ire is too low o r new sensors we re
not adapted :
[I] indicator lights turns on after turning the
ignition on
The tire pressure is too low compared to the
specified p ressure.
"' Check and store the t ire pressure(s) the next
time it is poss ible
c> page 264 .
[I] indicator light turns on while dri ving
Wheels with new sensors were not adapted or
the t ire pressure has reached a critical leve l com­
pared to the specified pressure .
264
"'Avoid unnecessary steering and brak ing maneu -
vers .
"'Adapt your dr iving sty le to the s ituation.
"' Stop as soon as possible and check the tire(s).
"'If it is possib le to continue driv ing, see an au-
thorized Audi dealer or authorized Aud i Service
Facility immediately and have your tire(s) re­
pa ired o r rep laced .
A WARNING
Read and fo llow the impo rtant info rmation
and n otes
c>page 263.
Storing new tire pressures
Applies to: vehicles with tire pressure monitoring system
Correctly stored tire pressure specifications are
necessary for reliable tire pressure monitoring.
-
It is always necessary to store the t ire pressures
whe n the t ire pressu res a re modified, fo r exam­
ple d ue to a change in load . o r when new senso rs
a re installed.
"' Before storing the t ire pressures, make su re the
tire pressures of all four t ires meet the spec i­
fied va lues and are adapted to t he load
c::> page 254, fig. 190 . Only correct and store
the pressure in tires whose temperature is ap ­
proximate ly the same as the ambient tempera ­
t u re . If the temperature of the tire is higher
than the ambient air temperature, the tire pressure must be increased approximately
3.0 PSI (0.2 bar) above the value on the st icker.
"' Switch the ignit ion on .
"'Select in the Infotainment system : IMENU! but­
ton
> Service & checks > Tire pressure monitor­
ing > Store tire pre ssure > Ye s, store now .
Af­
ter storing the t ire pressures, the t ire press ure
mon itor ing system measures the c urrent pres ­
sures while driving and stores them as the new
specified pressures .
"'If the changed tire pressures are not displayed
in the Infotainment system, drive the vehicle
for approximately 10 minutes so that the sen­ sor signa l from the wheels is received again .
During this adaptation phase, -- .- - is d isplayed
for the pressure and temperature and the tire pressure monitoring system is on ly partially

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-To reduce the risk of injury, support the ve­
hicle securely with suitab le stands if work is
to be performed underneath the vehicle.
- To help prevent injury to yourself and your
passengers:
- Do not ra ise 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
p lace away from the vehicle a nd well away
from the road and t raffic.
- Make sure jack posit ion is correct, adjust
as necessary and then cont inue to raise
the jack.
- If work has to be done under the v ehicle,
ensure that it is safely s upported on su ita­
b le stands
-risk of inju ry!
- Never start the engine when the vehicle is
on the jac k
-risk of accident!
(D Note
Do not lift the vehicle by the sill . Position the
veh icle jack* only at the des ignated mounting
points on the side s il l. Otherwise, yo ur vehicle
w ill be damaged.
Removing and mounting a wheel
Fi g. 2 01 Wheel : internal hex socket to turn the wheel
bolts
Em ergen cy as sis tanc e
Fig. 202 Whee l: alignment pin in the top ho le
Removing a wheel
.,. Remove the top wheel bolt completely using
the hex socket in th e screwdriver handle (in the
ve hicle tool kit) ¢
fig. 201 and p lace it on a
clean s urface.
.,. Then insta ll the alignment pin (from the ve hicl e
too l kit) by hand into the empty wheel bolt hole
<=> fig . 202.
.,. Remove the rest of the wheel bo lts.
.,. Remove the wheel <=>CD. The alignment pin re-
mains in the hole while doing this.
Install a wheel
Read the directions on <=> page 2 78 when in stal­
ling unidirectiona l tires.
.,. Slide the wheel on over the alignment pin ¢ (D .
.,. Insta ll the whee l bolts and tighten gently us ing
t he hex socket .
.,. Remove the alignment pin and also tighten the
remain ing whee l bolt .
.,. Carefully lower the vehicle using the vehicle
jack* .
.,. Tighten the wheel bolts in a d iagonal pattern
using the wheel wrench .
The wheel bolts must be clean and loosen/tight­
en easily . Check the contact surfaces for the
whee l and hub. Contam inants on these su rfaces
must be removed before installing the wheel.
_&. WARNING
Neve r use the hex socke t in the screwd river
handle to t igh ten the wheel bo lts . Using the
h ex socket will not ac hieve the required t ight­
ening torque, which increases the risk of an
accident .
..,.
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Fuses and bulbs
Fuses and bulbs
Electrical fuses
Replacing fuses
A fuse that has blown will have metal strips that
have burned through.
Fig. 20 5 Steering column area: cover
F ig. 20 6 Left side of the e ngine compartment: fuse cover
The individu al circuits are pro tec ted by safety
fuses. The fuses are located in the inter ior and in
the engine compartment .
Fuses in the interior
., Switch the ignition and all e lectr ica l equipment
off.
.. Check the following table to see which fuse be ­
l ongs to the
equipment ¢ page 281.
.. Remove the cover ¢ fig. 205.
.. Remove the plastic cl ip from the fuse panel
cover in the engine
compartment¢ fig. 206 .
.. Remove the fuse using the clamp.
., Replace the blow n fu se only with an identical
new one .
., Install the cover.
280
Fuses in the engine compartment
.. Switch the ignit io n and all electrical eq uipment
off .
.. Check the following table to see which fuse be­
longs to th e eq uipment
¢page 282.
.. Remove the fuse pane l cover c> fig . 206.
.. Remove the plastic clip from the fuse panel
cover ¢ fig. 206 .
., Remove the fuse us ing the clamp .
.. Replace the blown fuse on ly w ith an ident ical
new one.
Fuse color identification
Color Current rating
in amps
Black 1
Purple 3
Light brown 5
Brown 7.S
Red
10
Blue 15
Yellow 20
Wh ite or transparent 25
Green 30
Orange 40
A WARNING
D o not repair fuses and neve r rep lace a blown
f u se with one tha t has a hig her amp rat ing.
T his ca n ca use damage to the e lectr ica l sys­
tem and a fire .
(D Note
If a new fuse burns out again sho rtly after you
h ave insta lled it, have the e lectrical system
che cked as soon as possible by an au thori zed
A udi de aler or au tho riz ed Audi Service Fac ili­
ty .
0) Tips
- Th e followi ng t able does not list fuse loca­
t ions tha t are not used.
- Some of the e quipment listed in the fo llow­
ing tables applies on ly to certain mo del ver­
sions or certa in option al equipmen t.

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Emergency situations
General
This chapter is intended for trained emergency
crews and working personnel who have the nec­
essary tools and equipment to perform these
operations.
Starting by pushing or
towing
~ Note
Vehicles with an automatic transmission can­
not be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine can be started by con­
necting it to the battery of another vehicle .
If the engine should fail to start because of a dis­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, using a
pair of jumper cables to start the engine.
Jumper cables
Use only jumper cables of sufficiently large cross
section
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use only jumper cables with
insulated terminal
clamps which are distinctly marked :
plus(+) cable in most cases colored red
minus(-) cable
in most cases colored black.
A WARNING -
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal in­
jury. Follow the instructions below for safe
handling of your vehicle's battery .
-Always shield your eyes and avoid leaning
over the battery whenever possible.
-A dead battery can freeze at temperatures
around 32 °F (0 °C) . If the vehicle battery is
frozen, you must thaw it before connecting
the jump start cables. If you do not, this in-
Emergency situations
creases the risk of an explosion and chemi­
cal burns. After jump starting the vehicle,
drive to an authorized Audi dealer or author­ ized Audi Service Facility immediately to
have the vehicle battery checked.
- Do not allow battery acid to contact eyes or
skin . Flush any contacted area with water
immediately.
- Improper use of a booster battery to start a
vehicle may cause an explosion .
- Vehicle batteries generate explosive gases .
Keep sparks, flame and lighted cigarettes
away from batteries.
- Do not try to jump start any vehicle with a
low acid level in the battery .
- The voltage of the booster battery must also
have a 12-Volt rating . The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batteries of different voltage or substantial­
ly different "Ah " rating may cause an explo­
sion and personal injury.
- Never charge a frozen battery. Gas trapped
in the ice may cause an explosion.
- Never charge or use a battery that has been
frozen. The battery case may have be weak­
ened.
- Use of batteries of different voltage or sub­
stantially different capacity (Ah) rating may
cause an explosion and injury. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
c>page 233.
@ Note
- Applying a higher voltage booster battery
will cause expensive damage to sensitive
electronic components, such as control
units, relays, radio, etc.
- There must be no electrical contact between
the vehicles as otherwise current could al­
ready start to flow as soon as the positive
( + ) terminals are connected.
283

-When connecting jumper cables, make sure
that they cannot get ca ught in any mov ing
parts in the engine compartment.
- Do not bend over the batteries - danger of
chem ica l burns!
- The battery cell lock ing screws must be
t ightened sec ure ly.
- Be fore you check anything in the e ngine
compartment, a lways read and hee d all
WAR NINGS
q page 233 .
(D Note
Impro per hook -up of jum pe r cables can r uin
the gene rato r.
- Always connect POSITI VE (+ ) to POS ITIV E
( + ), and NEGATIVE( -) to NEGAT IVE( -)
g roun d post of t he battery mana ger contro l
u nit.
- Check that a ll sc rew p lugs on t he battery
cells are screwed in firmly. I f not, t ighten
plugs prior to connecting clamp on negative
batte ry terminal.
- Please note that the procedure fo r con nect­
i ng a jumper cab le as desc ribed above ap­
p lies specifica lly to the case of yo ur vehicle
being jump starte d. When you are giv ing a
ju mp s ta rt to anothe r vehicle, do
not con­
n ect the neg ative (-) cab le to the neg ative
(-) t ermin al on the di sch arged b attery @
q fig. 210. In ste ad , securely connec t the
nega tive ( -) cab le to either a solid me tal
com ponent that is f irm ly bolted to the e n­
gine block o r to the engine bloc k itself. If
the battery that is be ing cha rge d does not
vent to the outs ide, escap ing battery gas
could ignite and exp lode!
Towing with a tow truck
General hints
Your Audi requires special handling for towi ng .
The fo llow ing information is to be used by com ­
mercia l tow tr uck operators who know how to op-
a e rate the ir equip ment safe ly. co ....
~ - Never tow your Audi. Towing will cause dam-
"' 8 age to the engine and transmission . r--­Vl co
Emergency situations
-Never wrap the safety chains or winch cables
around the brake lines .
- To prevent unnecessa ry damage , your Audi
must be transported with a flatbed truck.
- To load the vehicle on to the flatbed, use the
towing loop found in the vehicle tools and at­
tach to the front or rear anchorage
¢ page 285 and ¢ page 286 .
A WARNING
-A veh icle being towed is not safe for passen-
ge rs. Neve r allow anyone to ride in a vehicle
b eing towed, fo r any r eason.
Front towing loop
Fig. 2 11 Front bumper: cover
-
The threaded opening for the towing loop is lo­
cated behind a cover on the right side of the front
bumper.
.,. Remove the towing loop from the vehicle too l
kit
¢ page 272.
.,. Press inward on the upper left side of the cap
to remove it from the bumper
¢fig. 211.
.,. Tighten the tow ing loop in the threaded open ­
ing until it sto ps and then tighten it w ith a
whe el wrench .
.,. After usi ng, p lace the tow ing loop b ack i n the
ve hicl e tool kit.
WARNING
If the towing loop is not ti ghtened until it
stops whe n installing, t he threads may be
pull ed out when towing the vehicle a nd that
could ca use an accident.
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~ Adjust lifting a rms o f wo rkshop ho ist o r floo r
jack to match veh icle lifting points .
~ In se rt a r ubber pad between t he floor jack/
wor kshop hoist and the lifting points.
The vehicle jac k mode* must be activated so that
the automatic a djustment of the Adaptive Air
Suspension* does not make it more difficult to
raise t he ve hicle w it h the floor jac k.
If you must lift your vehicle with a floor jack to
work underneath , be sure the vehicle is safely
supported on stands intended for this purpose.
Front lifting point
T h e lif ting poi nt is locat ed on the floor pan re in ­
fo rceme nt abou t at t he s ame leve l as t he jac k
mo unt ing poin t
i::> fig . 214. Do not lift the vehi­
cle at the vertical sill reinforcement.
Rear lifting point
T h e lif tin g point is loc ated o n the ve rt ical rein­
f o rc eme nt of th e lowe r sil l fo r th e on-bo ard jac k
¢fig . 215.
Lifting with vehicle jack
Refer to i::> page 2 76 .
A WARNING
- T o re duc e th e risk of seri ous injur y an d vehi­
cl e dama ge.
- A lways lift t he veh icle only at the s pecial
wo rksho p hoist and floo r jack lift po ints il­
lust rated
¢ fig. 214 and ¢ fig. 215.
- Fa ilu re to li ft the vehicle at these points
could cause the vehicle t o til t or fa ll from
a li ft if there is a change in veh icle we ig ht
d istr ibu tion a nd balance. Th is m ight hap ­
p en , fo r e xamp le, wh en h eavy co m po­
n e nts s uch a s the engi ne b lock or tran s­
mission ar e re mo ved.
- W hen remo ving h eavy compo nents like
t h ese, anchor vehicle to hoi st or add cor re­
s p ondi ng we ights to ma inta in t he ce nt er of
g ra vity . Ot herwise, the vehi cle m ight ti lt or
s lip off the hoist, causin g serio us persona l
injury .
Emergency situations
@ Note
-Be aware of t he fo llow ing poin ts befo re lift ­
in g th e vehicle:
-The vehicle should never be lifted or
jacked up from underneath the engine oil
pan, the transmission housing, the front
or rear axle or the body side members.
This could lead to serious damage.
- To avoid damage to the underbody or
chassis frame, a rubber pad must be in­
serted between the floor jack and the lift
points.
- Before driving over a workshop hoist,
check that the vehicle weight does not
exceed the permissible lifting capacity of
the hoist.
- Before driving over a workshop hoist , en­
sure that there is sufficient clearance be­
tween the hoist and low parts of the ve­
hicle.
287

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scope of maintenance and repairs which can be
carried out by vehicle owners.
Al so, sa fety a nd
en vir onment al
concerns place very strict limits
on the nature of repairs and adjustments to en­
g ine and transm ission parts wh ich an owner can
perform .
Maintenance, adjustments and repairs usually re­
qu ire special tools, test ing devices and other
equ ipment available to specially trained work­
shop personnel in order to assure proper per ­
formance, rel iability and safety of the veh icle and
its many systems .
Improper maintenance, adjustments and repairs
can impair the operation and reliability of your
veh icle and even void your vehicle warranty .
Therefore, proof of servicing in accordance with
the ma intenance sc hedule may be a condition for
upho ld ing a possib le wa rranty claim made within
the warranty period.
Above all, operational safety can be adversely af­
fected, creating unnecessa ry risks fo r you and
your passenger.
If i n doubt about any servicing, have it done by
your author ized Audi dealer or any other properly
equ ipped and qua lified workshop. We strongly
urge yo u to g ive your author ized Audi dealer the
opportunity to perform a ll scheduled ma inte­
nance and necessary repairs. Your dealer has the
facilities, origina l parts and trained specialists to
keep your vehicle running properly .
Performing limited m aint ena nc e y our self
The follow ing pages describe a lim ited number of
p rocedures w hich can be per formed on your ve hi­
cle with ordinary tools, should the need arise and
trained personnel be unavai lable . Before per­
forming any of these procedures, always thor­
ough ly read a ll of the app licab le text and carefu l­
ly follow the instructions g iven . Always rigorously
observe the
W ARNING S provided .
Before you ch eck anything in the engine com ­
partment , always read a nd heed all WARNIN GS
c> & and c> & in Working in the engine compart­
ment on page 233 . Con
sum er In form ation
A WARNING
--
- Ser ious personal injury may occur as a result
of improperly performed maintenance, ad­
justments or repairs .
- Always be extremely careful when work ing
on the vehicle . Always follow commonly ac­
cepted safety practices and general com­ mon sense. Never risk pe rsonal inj ury.
- Do not attempt any of the maintenance,
checks or repairs described on the following pages if you are not fu lly famil iar with these
or other proced ures with respect to the ve­
h icle, or are uncerta in how to pro ceed.
- Do not do any work without the proper tools
and eq uipment. Have the necessary wo rk
done by your authorized Audi dealer or an­
other proper ly 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
g ine is off . The radiator fan switches on au­
tomatically when the coolant reaches a cer­
tain tempe rature and will cont inue to run
until the coolant temperature d rops.
- Always sw itch off the ignition before anyone
gets under the vehicle.
- Always support your veh icle with safety
stands if it is necessary to work underneath
the vehicle. The jack suppl ied with the veh i­
cle is no t adequate for this pu rpose and
could collapse caus ing serious personal in­
jury.
- I f you must wor k unde rneath 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 se lector
lever (automatic transmiss ion) is in P (Park
position) and the park brake is applied.
II>
291