2018 AUDI S3 SEDAN fuel pressure

Wheels
Wheel bolts and rims
Wheel bolts
Wheel bolts must be clean and loosen/tighten
easi ly.
Rims
Rims with a bolted rim ring* or with bolted wheel
covers* consist of multiple pieces . These compo­
nents were bolted together using special bolts
and a special procedure . You must not repair or
d isassemble
them ¢_&. .
_& WARNING
Wheel bolts that are tig htened or repaired in­
correctly can become loose and result in loss
of vehicle control, which increases the risk of
an accident. For the correct tightening specifi­
cation, see
q page 364, After changing a
wheel.
- Always keep the wheel bolts and the
threads in the wheel hub clean and free of
grease.
- Only use wheel bolts that fit the rim.
- Always have damaged rims repaired by an
authorized Audi dealer or authorized Audi
Service Facility. Never repair or disassemble
rims yourself, because this increases the risk
of an accident.
Winter tires
Winter tires significantly improve the vehicle 's
handling when driving in winter conditions . Be­
cause of their construction (width, compound,
tread pattern), summer tires provide less trac­
tion on ice and snow.
.,. Use winter tires on all four wheels .
.,. Only use winter tires that are approved for your
vehicle.
.,. Please note that the maximum permitted
speed may be lower with winter tires
¢ A in
General information on page 330.
An author­
ized Audi dealer or authorized Audi Service Fa­
cility can inform you about the maximum per­
mitted speed for your tires .
.. Check the tire pressure after installing wheels
¢page 341 .
346
The effectiveness of winter tires is reduced great­
ly when the tread is worn down to a depth of
0.157 inch (4 mm). The characteristics of winter
tires also decrease greatly as the tire ages, re­
gardless of the remaining tread.
@) For the sake of the environment
Reinstall summer tires at the appropriate
time, because they provide better handling
when roads are free of snow and ice. Summer
tires cause less road noise, tire wear and fuel
consumption .
(D Tips
You can also use all season tires instead of
winter tires. Please note that in some coun­
tries where winter tires are required, only
winter tires with the
& symbol may be per­
mitted.
Snow chains
Snow cha ins not only improve the driving in win­
ter road conditions, but also the braking.
.,. Only install snow chains on the front wheels.
This applies also to vehicles with all wheel
drive*.
.. Check and correct the seating of the snow
chains after driving a few feet, if necessary. Fol­
low the instructions from the manufacturer .
.. Note the maximum speed of 30 mph (SO km/
h). Note the local regulations.
Use of snow chains is only permitted with certain
rim/tire combinations due to technical reasons.
Check with an authori zed Audi dealer or author­
ized Audi Service Facility to see if you may use
snow chains .
Use
fine-mesh snow chains. They must not add
more than 0.53 inch (13.5 mm) in height, includ­
ing the chain lock .
You must remove the snow chains on roads with­
out snow . Otherwise, you cou ld impair driving
ability and damage the tires .

Wheels
~ Select in the Infotainment system: IMENUI but ­
ton
> Vehicle > left control button > Service &
checks > Tire pressure monitoring > Store tire
pressure> Yes, store now.
(D Tips
Do not store the tire pressures if snow chains
are installed.
Tire pressure monitoring
system
(.L) General notes
Each tire, including the spare (if provided),
should be checked monthly when cold and inflat ­
ed to the inflation pressure recommended by the
vehicle manufacturer on the vehicle placard or
tire inflation pressure label. (If your vehicle has
tires of a different size than the size indicated on
the vehicle placard or t ire inflation pressure la­
bel, you should determine the proper tire infla­
tion pressure for those tires).
As an added safety feature, your vehicle has been
equ ipped w ith a t ire pressure monitoring system
(TPMS) that illuminates a low tire pressure tell­
tale when one or more of your tires is significant­
ly under-inflated. Accordingly, when the low tire
pressure telltale illuminates, you should stop and
check your tires as soon as possible, and inflate
them to the proper pressure. Driving on a signifi­
cantly under-inflated tire causes the tire to over­ heat and can lead to tire failure . Under -inflation
also reduces fuel efficiency and tire tread life,
and may affect the vehicle's handling and stop­
p in g ability.
Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's re­
sponsibility to maintain correct tire pressure,
even if under-inflation has not reached the leve l
to trigger illuminat ion of the TPMS low tire pres­
sure telltale .
Your vehicle has also been equipped with a TPMS
malfunct ion indicator to indicate when the sys­
tem is not operating properly. The TPMS mal ­
function indicator is combined with the low tire
pressure telltale. When the system detects a
350
malfunction, the telltale will flash for approxi ­
mately one minute and then remain continuously
illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the mal­
function exists.
When the malfunction indicator is illuminated,
the system may not be able to detect or signal
low tire pressure as intended. TPMS malfunctions
may occur for a variety of reasons, including the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the
TPMS malfunction tel ltale after replac ing one or
more tires or wheels on your vehicle to ensure
that the replacement or alternate tires and
wheels allow the TPMS to continue to function
properly.
Description
Applies to: vehicles with tire pressure monitoring system
The tire pressure monitoring system monitors
the pressure in the four tires when driving.
The system uses sensors that measure the tema
perature and pressure in the tires. The data is
sent from these sensors to the control module by
radio frequency .
The tire pressure monitoring system shows the
current pressures and temperatures of the tires
in the Infotainment system while driving
¢ page 351. It also compares the current tire
pressures with the stored tire pressures and
gives a warning if the tire pressure is different
from what is stored
¢ page 351.
The system does not detect if the stored tire
pressures match the recommended tire pres ­
sures . You must store the tire pressures again
¢ page 352:
- every time the tire pressures change, for exam ­
ple when the load in the vehicle changes,
- after replacing a tire, or
- if wheels with new wheel sensors are used.

LL co .... N
" N .... 0 N > co
No. Equipment
F49 Clutch sensor (relay 1+2),
high-voltage
battery, power electronics
F52 Control module for suspension control
F53 Rear window defogger
The power seats* are protected via
circuit break­
ers
that automatically switch on after a few sec­
onds after the overload has been reduced.
Fuse assignment -engine compartment
Fig. 299 Engine compartme nt: fuse assignment
No. Equipment
Fl Electronic Stabilization Control (ESC)
F2 Electronic Stabilization Control (ESC)
F3 Engine control module
Eng ine components, engine cooling, aux-
F4 iliary heater co il relay (1+4+7), secondary
air inject ion pump relay
FS Engine components, fue
l tank system
(diesel), CNG cut-off va lve
F6 Brake light switch
F7 Eng
ine components, water pumps, tank
system (gasoline engine)
FB Heat oxygen sensor
Fuses and bulbs
No. Equipment
F9 Engine
components, exhaust door, glow
time control module (relay 6)
F lO Fuel control module, fuel pump
F ll Auxiliary
heater heating element 2, en-
gine components, secondary air pump
F12 Auxiliary
heater heating element 3, vac-
uum pump
F13 Automat ic transmission
F lS Horn
F16 Ign
it ion coil (relay 8), power and control
electronics
F17 E
lectroni c Stabilization Control (ESC), en-
gine control module (relay S)
F18 Terminal
30 (voltage reference), battery
monitoring
Fl9 Windshield wipers
F20 Anti-theft alarm system
F22 Terminal
SO diagnos is, engine control
module
F23 Starter
F24 Auxiliary
heater heating element 1, brake
booster
F 31 Vacuum pump, water pump, high pres-
sure pump, fuel injectors
F33 Brake
pressure reservoir, recuperation,
transmission fluid pump
F34 Brake booster
F 35 A/C function
relay
F37 Parking heater
Bulbs
Replacing light bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for
you.
It is becom ing increasingly more and more diffi­
cu lt to replace vehicle light bulbs since in many
cases, other parts of the car must first be re­
moved before you are ab le to get to the bulb.
This applies especially to the light bulbs in the
373

Index
Vehicle tool kit . . . . . . . . . . . . . . . . . . . . . . 101
Vehicle transport . . . . . . . . . . . . . . . . . . . . 102
Point of interest . . . . . . . . . . . . . . . . . . . . . . 204
Point of interest search . . . . . . . . . . . . . . . . 204
also refer to Point of interest . . . . . . . . . . 204
Polishing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Pollen filter
refer to Pollutant filter . . . . . . . . . . . . . . . . 68
Pollut ant fil ter . . . . . . . . . . . . . . . . . . . . . . . . 68
Power entry assistance
re fer to Seats . . . . . . . . . . . . . . . . . . . . . . . . 60
Power meter . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Power seat adjustment . . . . . . . . . . . . . . . . . 59
Power sources ................. 62 ,230,231
Power top . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . 356
Power windows . . . . . . . . . . . . . . . . . . . . . . . . 39
Child safety lock . . . . . . . . . . . . . . . . . . . . . . 39
Malfunction . . . . . . . . . . . . . . . . . . . . . . . . . 40
Pregnant women Special consid erations when w earing a safe-
ty belt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 265
p re sense
refer to Audi pre sense . . . . . . . . . . . . . . . 130
Presentation mode . . . . . . . . . . . . . . . . . . . . 209
Presets (radio) . . . . . . . . . . . . . . . . . . . . . . . 221
Pressure Tire pressure monitoring system . . . . . . . 350
Tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 341
Program guide
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 219
Proper occupant seating positions . . . . . . . 250
Proper safety belt position . . . . . . . . . . . . . . 265
Proper seating position Front passenger . ... .. ..... ... .. .. .. . 251
Occupants . . . . . . . . . . . . . . . . . . . . . . . . . . 250
Rear passengers . . . . . . . . . . . . . . . . . . . . . 252
Q
quattro (all wheel drive) . . . . . . . . . . . . . . . . 152
Select ive whee l torque control . . . . . . . . . 148
Question What happens to unbelted occupants? . . 261
396
R
Radio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 218
Additional station information . . . . . . . . . 220
Presets . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Radio text. .. .. .. .. .. ............. .. 219
Station list
Radio Standards Specification (RSS)
Rain/light sensor 218
386
Automatic headlights . . . . . . . . . . . . . . . . . 49
Switching the rain sensor on/off. . . . . . . . . 55
Random
refer to Shuffle . . . . . . . . . . . . . . . . . . . . . 235
Range (tank level) . . . . . . . . . . . . . . . . . . . 17, 18
Reading lights . . . . . . . . . . . . . . . . . . . . . . . . . 52
Rear Cleaning the rear window . . . . . . . . . . . . . . 55
Luggage compartment lid . . . . . . . . . . . . . . 37
Rear fog lamp(s) . . . . . . . . . . . . . . . . . . . . . . . 49
Rear lid Escape latch . . . . . . . . . . . . . . . . . . . . . . . . 360
Rearview camera . . . . . . . . . . . . . . . . . . . . . . 145
Rear window defogger
Automatic climate contro l system . . . . . . . 70
Recirculation mode
Automat ic climate control system . . . . . . . 70
Recuperation . . . . . . . . . . . . . . . . . . . . . . . . . 17
Refresh station list (radio) . . . . . . . . . . . . . . 221
Refueling... .. .. .. .. .. ............. .. 315
Plug- in hybrid drive . . . . . . . . . . . . . . . . . . 103
Remote control
refer to Remote control key . . . . . . . . . . . . 32
R emote control key . . . . . . . . . . . . . . . . . . . . 32
Repair manuals . . . . . . . . . . . . . . . . . . . . . . . 383
Repairs Airbag system . . . . . . . . . . . . . . . . . . . . . . 284
Replacement key . . . . . . . . . . . . . . . . . . . . . . 32
Replacing Light bulbs .. .. .. .. .. ............. .. 373
Replacing wiper blades . . . . . . . . . . . . . . . . . 57
Reporting Safety Defects . . . . . . . . . . . 258, 259
Reset
refer to Restart (MMI) . . . . . . . . . . . . . . . . 248
Reset button (trip odometer) . . . . . . . . . . . . 12
Resetting the trip odometer . . . . . . . . . . . . . 12
Restart (MMI) . . . . . . . . . . . . . . . . . . . . . . . . 248