2021 AUDI A4 tire pressure

Emergency assistance

Using the ti

Applies to: vehicles with tire mobility kit


B8K-1475



— If an allergic reaction occurs, seek medical
attention immediately.
— Keep the tire sealant away from children.


Fig. 170 Tire: tire damage that cannot be repaired
The tire repair is only meant for temporary use.
Change the damaged tire as soon as possible
oA.
If the tire is pierced by an object such as a nail,
do not remove the object from the tire.
The tire mobility kit can be used at temperatures
as low as -4 °F (-20 °C).
The tire mobility kit must not be used:
—If the tire has cuts or punctures that are larger
than 0.16 in (4 mm) @ ° fig. 170
— If the rim is damaged (2)
— If you have driven with very low tire pressure or
without air in the tire @)
See an authorized Audi dealer or authorized Audi
Service Facility for assistance in these situations.

Z\ WARNING
— Please note that the tire mobility kit cannot
be used in all situations, and that it may on-
ly be used temporarily.
— The tire sealant must not come in contact
with skin, eyes, or clothing.
— If tire sealant comes into contact with your
eyes or your skin, thoroughly rinse the af-
fected area immediately with clean water.
— Do not inhale the fumes.
— If you swallow any of the tire sealant, thor-
oughly rinse your mouth immediately and
drink a lot of water. Do not induce vomiting.
Seek medical attention immediately.
— Change your clothing immediately if it
comes into contact with tire sealant.



262
(i) Tips
— If sealant leaks, allow it to dry in place. You
can then peel it off like a sticker.
— Note the expiration date on the sealant bot-
tle. Replace the tire sealant at an authorized
Audi dealer or authorized Audi Service Fa-
cility.
— Radio reception can be interrupted when
operating the compressor.
— Follow the legal regulations that are appli-
cable in the country where you are operating
the vehicle.

Repairing tires
Applies to: vehicles with tire mobility kit

RAZ-0054)



Fig. 172 Tire mobility kit connection
Requirement: the tire mobility kit must be laid
out and ready for use > page 261.

8W1012721BC
Emergency assistance

Setting up the tire mobility kit
> Open the cover @) on the compressor!)
fig. 171.
> Remove the connector () and pressure hose (5)
from the housing.
> Connect the compressor pressure hose © to
the flange © on the tire sealant bottle @).
> Insert the sealant bottle with the flange at the
bottom into the opening @) on the compressor.
> Remove the valve cap from the faulty tire.
> Connect the filler hose @) to the valve (7)
> fig. 172.
> Connect the plug @) © fig. 171 to an outlet in
the vehicle.
> Switch the ignition on.
Inflating a tire
> Move the switch (8) > fig. 172 on the compres-
sor into position I.
> Inflate the tire to between 29 psi (200 kPA)
and 36 psi (250 kPA) and read the pressure on
the gauge.
> If this tire pressure is not reached, remove the
filler hose. Drive slowly approximately 33 feet
(10 m) forward or in reverse so that the sealant
can be distributed in the tire. Inflate the tire
again > A\.

ZA WARNING
— Read and follow the manufacturer's safety
precautions on the compressor and in the in-
structions on the bottle of sealant.
—Ifatire pressure of 29 psi (200 kPA) cannot
reached after inflating for 6 minutes, then
the tire is too severely damaged. Do not con-
tinue driving.
— If the tire cannot be repaired with the tire
sealant, see an authorized Audi dealer or au-

thorized Audi Service Facility for assistance.

@ Tips
Do not operate the compressor for more than
six minutes continuously, or it can overheat.

2) The compressor may look different. However, the way it is
operated is generally the same.
Once the compressor has cooled, you can con-
tinue to use it.
Completing
Applies to: vehicles with tire mobility kit
> Affix the sticker that says "max. 50 mph (max.
80 km/h)" that is provided with the tire mobili-
ty kit within the driver's field of vision.
> Stop the vehicle after driving for about 10 mi-
nutes and check the tire pressure.
> If the tire pressure is lower than 19 psi (130
kPA), then the tire is too severely damaged. Do
not continue driving.

ZA\ WARNING
Pay attention to the following after repairing
the tire:
— Do not drive faster than 50 mph (80 km/h).
— Avoid hard acceleration or braking and driv-
ing fast around curves.
— The vehicle may become more difficult to
control.
—If the tire is too severely damaged, see an
authorized Audi dealer or authorized Audi
Service Facility for assistance.


©) For the sake of the environment
You can give the used tire sealant bottle to an
authorized Audi dealer or authorized Audi
Service Facility for disposal.
@) Tips
Remember to obtain a new bottle of sealant
from an authorized Audi dealer or authorized
Audi Service Facility after repairing a tire.
Changing a tire
You must complete the preparation before
changing a tire.
> Read and follow the important safety precau-
tions > page 261.
263

Emergency assistance

The wheel bolts must be clean and loosen and
tighten easily. Check the contact surfaces for the
wheel and hub. Contaminants on these surfaces
must be removed before installing the wheel.

ZA\ WARNING
— Read and follow the important information
and notes under > page 242.
— Never use the hex socket in the screwdriver
handle or the hex socket wrench with the
ratchet to loosen or tighten the wheel bolts.
This increases the risk of an accident, be-
cause you will not be able to achieve the cor-
rect tightening specification.
@) 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.
Unidirectional tires
A unidirectional tire profile is identified by arrows
on the tire sidewall that point in the running di-
rection. You must always maintain the specified
running direction. This is necessary to ensure the
tire's optimal performance in regard to adhesion,
running noise, and friction, and to reduce the risk
of hydroplaning.

To benefit fully from the advantages of the uni-
directional tire design, you should replace faulty
tires as soon as possible and restore the correct
running direction on all of the tires.
> Reinstall the caps on the wheel bolts if necessa-
ry.
> Store the vehicle tool kit in its designated
place.
> If the removed wheel does not fit in the spare
wheel well, store it securely in the luggage
compartment > page 83.
> Check the tire pressure on the installed wheel
as soon as possible.
> Correct the tire pressure and store it in the MMI
=> page 254.
266
> The wheel bolt tightening specification must be
90 ft lbs (120 Nm). Have it checked as soon as
possible with a torque wrench. Drive carefully
until then.
> Have the faulty wheel replaced as quickly as
possible.
Space-saving spare tire
Applies to: vehicles with space-saving spare tire (Compact
spare tire)
The spare tire is intended for short-term use only.
Have the damaged tire checked and replaced if
necessary by an authorized Audi dealer or author-
ized Audi Service Facility as soon as possible.
There are some restrictions on the use of the
compact spare tire. The compact spare tire has
been designed specifically for your type of vehi-
cle. Do not replace it with the spare tire from an-
other type of vehicle.
The compact spare tire is located in the luggage
compartment under the cargo floor cover
=> page 261.
The tire pressure must be adjusted to a specified
value listed on the tire pressure sticker
=> page 245, fig. 168.
Snow chains
For technical reasons, the use of snow chains on
the compact spare tire is not permitted.
If you have to drive with snow chains and a front
tire fails, mount the spare tire in place of a rear
tire. Install the snow chains on the rear tire that
you removed, and install that in place of the
front tire that failed.

ZA\ WARNING
— After installing a spare tire, the tire pressure
must be checked as soon as possible.
— Do not drive faster than SO mph (80 km/h)
with a compact spare tire. Driving faster
than that increases the risk of an accident.
— To reduce the risk of an accident, avoid hard
acceleration or braking and driving fast
around curves with the compact spare tire.
— To reduce the risk of an accident, never drive
with more than one compact spare tire. >

8W1012721BC
Emergency assistance


— Normal summer or winter tires must not be
mounted on the compact spare wheel rim.

() Note
Secure the spare tire in the spare tire well us-
ing
the handwheel in order to reduce the risk
of damage to other components.
Collapsible spare tire
Applies to: vehicles with collapsible spare tire
The collapsible spare tire is intended for short-
term use only. Have the damaged tire checked
and replaced if necessary by an authorized Audi
dealer or authorized Audi Service Facility as soon
as possible.
There are some restrictions on the use of the col-
lapsible spare tire. The collapsible spare tire has
been designed specifically for your type of vehi-
cle. Do not replace it with the collapsible spare
tire from another type of vehicle.
The collapsible spare tire is located in the lug-
gage compartment under the cargo floor cover.
Requirement: the vehicle tool kit > page 261 and
the compressor must be laid out.
Removing
> Lift the cargo floor using the handle.
> Turn the handwheel counter-clockwise and re-
move it.
> Remove the collapsible spare tire.
You must inflate the collapsible spare tire before-
hand in order to use it.
Inflating
> Remove the valve cap from the collapsible
spare tire.
> Tighten the compressor hose on the collapsible
spare tire valve.
> Connect the compressor hose to a vehicle sock-
et and switch it on.
> Let the compressor run until the specified value
on the tire pressure sticker is reached
> page 245, fig. 168 > ©.
> Screw the valve cap back onto the valve.
Returning to storage
> To release air, turn the valve insert. See an au-
thorized Audi dealer or authorized Audi Service
Facility.
> Turn the valve insert back once the air has been
released.
>» Wait several hours before placing the collapsi-
ble spare tire in the spare wheel well. Only then
will it fold down completely so that you can
store it securely.
> Then screw the valve cap back onto the valve.
> Secure the collapsible spare tire with the hand-
wheel.
>» Fold the cargo floor cover back into place.
Snow chains
Using snow chains on the collapsible spare tire is
not permitted for technical reasons.
If you have to drive with snow chains and a front
tire fails, mount the collapsible spare tire in place
of a rear tire. Install the snow chains on the rear
tire that you removed, and install that in place of
the front tire that failed.

Z\ WARNING
— Only use the collapsible spare tire in emer-
gencies and drive very carefully, especially if
it is more than six years old.
— The compressor and the hose can become
very hot during operation which increases
the risk of burn injuries.
— After installing a collapsible spare tire, the
tire pressure must be checked as quickly as
possible to reduce the risk of an accident.
— Do not drive faster than 50 mph (80 km/h)
with the collapsible spare tire. Driving faster
than that increases the risk of an accident.
— To reduce the risk of an accident, avoid hard
acceleration or braking and driving fast
around curves with the collapsible spare
tire.
— Never drive using more than one collapsible
spare tire, because this increases the risk of
an accident.
— Normal tires or winter tires must not be
mounted on the collapsible spare tire rim.

267

Fuses and bulbs


2 | Audi phone box

Right front seat electronics, lumbar sup-
port, massaging seat
4 |Side assist


6 |Tire pressure monitoring system

Convenience access and start authoriza-
tion control module

8 | Auxiliary heating, tank module

TV tuner, data exchange and telematics
10 control module

11 | Auxiliary battery control module

12 | Garage door opener

13 | Rearview camera, peripheral cameras
14 | Right tail lights
16 | Airbag control module



No. | Equipment

Exhaust treatment
Right trailer hitch light
Trailer hitch
Left trailer hitch light
Trailer hitch socket


WO)
O};N]/
Mm|
Ww

All wheel drive control module, sport dif-
10
ferential


11 | Exhaust treatment

Bulbs
Replacing bulbs
Audi recommends having a bulb replaced by an
authorized Audi dealer or authorized Audi Service
Facility in cases of doubt. These facilities have
the correct tools and replacement parts as well
as the required technical knowledge.
LED lights*
Your vehicle is equipped with maintenance-free
headlights and tail lights. However, if a light bulb
needs to be replaced, please contact an author-
ized Audi dealer or authorized Audi Service Facili-
ty.
276

If you still would like to try replacing the
bulbs in your vehicle yourself, read the warn-
ings regarding working in the engine compart-
ment > A\ in General information on
page 221.

Make sure the covers are fitted correctly on
the headlight and tail light so that no water
will leak in from the outside and the light
function will not be impaired.

8W1012721BC
Technical data

Capacities
Fuel tank 15.3 gal (58 L)


Windshield and headlight washer system*

5.1 qt (4.8L)

A/C system refrigerant oil
The exact type and amount of refrigerant oil in
the A/C system is specified on the sticker on the
refrigerant compressor.
Refrigerant oil 100/110 g® +/-10g

@) The specifications depend on vehicle equipment.


Le
|
|



Applies to: sedan
Fig. 190 Safety certificate

B8U-0380


Applies to: allroad
Fig. 191 Safety certificate
Gross Vehicle Weight Rating (GVWR)
The maximum permitted total weight @ of the
vehicle is listed on the safety certificate on the
side area of the door or on the driver's door pillar.
Gross Axle Weight Rating (GAWR)
The maximum permitted load on the front axle
@ or the rear axle @) is listed on the safety cer-
tificate on the side area of the door or on the
driver's door pillar.
Load
The maximum permitted load is listed on the tire
pressure label on the driver's door pillar.
Roof load
The maximum permitted roof load is 198 lbs
(90 kg).
287

8W1012721BC
Index


Battery
Charging (12 Volt vehicle battery)....... 232
Vehicle battery (12 Volt)............... 230
Winter operation (12 Volt vehicle battery) . 231
BLOCK POU cei: «x were: oo ceamewe oo semen 2 o seems 187
BLOWN: sess: ¢ = seene « x wanes g 2 meee 5 2 ee 4 ee 92
Bluetooth
Audio playen snus « 2 sassws ae suesens ov srw 9 2 3 201
Connecting adevice..............0000- 214
Connecting a mobile phone............ 162
Deleting a device
Device overvieW............00-.0 eee
Disconnecting a device................ 214
Displaying profiles..................0. 215
Selecting adevice.............0..000. 214
Specifying a favorite.................. 215
Boost... 6... eee eee eee 15
Boost pressure indicator................. 15
Brake fluid
Checking the brake fluid level........... 229
BrakeS.. 0... eee eee 104
Brak@fluid(: = = sams = « eam = woven se pee as 229
Emergency braking function............ 106
0) 107
New brake pads............. 00s e eee 104
Braids « savay » © aaiwa & Raeoe ¢ & SanDR ES Se ES 216
Break-in security feature............00005 36
Breaking in
New brake pads..............----000- 104
NeWetiresis « wcuin as maces a meme a 2 emma ee 242
Browser
refer to Media center...............00. 204
Businessiaddressis i s, svessns sc scan a a veamiws a aa 187
c
California Proposition 65 Warning........ 222
Battery specific...............00-0 00 231
GALLUISE sacsse + ogsiese 0 9 axons 0 4 exexeus 4 2 anneew a 166
Cameras
Coverage areaS............-.0. 000000. 118
LOGAUIONS a: « ¢ apes ¢ nates 3 paee 5 x PEER GE 119
Capacities
Puelitankss sss so somes a sess @ o aves ¥ 0 ond 287
Washer fluid reservoir................. 287
Garwashh x 5 sews « onsmeus © scagens os ayers «6 @ some 255
Gatalytic converter « sis 2 weve eo wee ee cree 220
Cell phone
refer to Telephone............00 eee eee 162
Cell phone compartment
refer to Audi phone box............... 164
Central locking...... cece eee cree eee 33
AULOILOGK « coos 2 5 seme 5 5 ete so wows Go eG 33
Convenience key sie © « socsais 2 6 srvoem + 6 voese 38
Convenience opening and closing......... 46
Luggage compartment lid............... 4l
Mechanically unlocking and locking....... 36
MessageS ......--. 0c cece eects 35
Remote control key........:0ee eee ee eee 38
SEUNG’: © wave: s 2 wecems ve arene @ aetna ¥ ewee 34
Vehicle key... 0... cece eee ee eee ee 38
Central locking switch..............0000. 35
Ceramic Drakesinis © «cassie © x seve ¥ @ suena # ane 104
Certification): « . cee: ss wean ov enw os eee « 284
Charging
refer to Power sourceS..........-.000005 82
Charging the battery
Mobile devices..................00005 202
USB': « meme 2 ¢ anus © naueu & x REINS & ¥ ORE & 165
Witelessis «secs x x woos 2 v cervaue a x stone 2 9 oon 165
Child safety lock
Climate control system controls in the rear. 44
POWEr WINDOWS! si: = © xsnas 4 § Seen & & Maram 4 es 44
Rear dOOrsis + o omc sc sami oo me oases 44
Child safety seats..............---.00005 76
Securing to the top tether anchor........ 80
Securing with a safety belt.............. 79
Securing: with LATCH s « sw « & nome « ¢ sans « 78
ClEATIAG saves 5 x nore 5 2 wows ot eee xe eee 255
Cleaning Alcantara.............-.00000. 258
Cleaning artificial leather............... 258
Cleaning carbon components........ 257, 258
Cleaning controls..................005. 258
Cleaning decorative parts andtrim........ 257
Cleaning exhaust tail pipes.............. 257
Cleaning plastic parts...........00 eee 257
Cleaning textiles = cass ¢ & exes ¢ cae se ees 258
Climate control system ............00000- 90
also refer to Automatic climate control sys-
GNA. 2 execs © 2 ceeueve = ueueat © + steams © meme = © 90
Climate control system controls in the rear
Child safety lock........... 0. cece eee 44
289

Index

Parking lock
Manually releasing.............00000- 100
also refer to Gears... 6... eee e eee eee 97
Partition W@t sca < ssces v enees s aren ase 86, 87
Pass-through... .... cc eee cence eens 86
Pedals... 2... cece eee eee eee 99
Perchlorate ....... 0. eee eee ee eee 281
Peripheral cameras............0.000085 152
Phone
Connecting a second mobile device...... 163
Disconnecting a mobile device.......... 164
SONGS ccsain » iam © © wravens a % aosmem w v soveTs 6 169
Phonebook
refer to Directory.......... 0. e ee eae 167
PIN
A-digit myAudi PIN.................00. 30
PROLECHON sev: « ¢ cee x o cares § e oem oe ee 31
Playback (media). . sss. ss sees ie cease ee 203
Podcast
refer to Online radio.............. 197,198
POLISHINGisax « ¢ eee + & eee Eee a Ree a ee 257
Pollen filter
refer to Pollutant filter................. 90
Pollutant filter’: . aces ss seee s bees ween as 90
POWEP SOUPCES:: « = seme: =v seme ee meee e 82, 202
Power WiINdOWS ......... 0 eee e eee eens 45
Malfunction ns san 2 wean es ween a 2 wees = 45
Power windows malfunction.............. 45
Predictive control.............-.00e000- 133
Predictive messages..............--005- 129
pre sense
refer to Audi presense................ 143
Presentation mode..............-+-008 192
Presets
RadiGicres s ¢ eves 5 2 neues x 5 Haus oe ROWS FB: 196
Presets list
Feferto Presetsicis <2 sais Pressure
Tire pressure monitoring system........ 253
Tif@S': + : asvox ¢ & eaime & & eG 3 5 HORS 7 ES 245
Profile picture... . eee eee eee ee eee 30
Protecting ..... 0... 0c cece cece eee 257
Pyrotechnic elements..............000 281
296
Q
quattro... 2... eee 112
Selective wheel torque control.......... 113
R
RSGiG}: = : suse » 5 mews ¢ 2 Swe 2 a eee x eee 193
RadiOteXtiscn casi a i ance @ a anemia oo anew 196
Station list... 2.0.0... ee eee 193
Radio communications equipment........ 283
Radio‘equipment ....... eeen ee een ee eee 283
Radio Standards Specification (RSS) ....... 284
Rain/light sensor
Automatic headlights.................. 51
Intermittent mode (windshield wipers).... 58
Random
refer to Shuffle: . s sses s+ ovens peewee: 205
Range (fuel level) .................00000. 16
Reading lights.............. 2.000 eee eee 54
Rear cross-traffic assist.............0005 156
Rear lid
refer to Luggage compartment lid........ 41
Rear seatS.. 1... . cee eee eee 85, 86
Rear shelf
refer to Storage area behind the rear head
FEStrAINES wssve 2 o wawere oo esi ¥ 6 Rae @ 8 eens 83
Rearview camera... 12.1... ee eee eee eenes 152
Rear window defogger...............000 93
Rear wiper blades
Changing sec = wee ws were ov nee oo ae 8 60
Cleaning..... 2... . 6. cece eee 60
Recirculation mode..............--00005 92
RECUPERATION cesses vu suceae « & cameson ww eames ow Re 16
Refrigerant Oilivics = 5 wean eo wenn eo wwe 2 a0 287
Refueling’: ss sees 2 = saws 7 5 tees Fe ewe ro: 218
Remote access authorization (key user)..... 31
Remote control
Garage door opener..............2+-00. 48
Remote control key.............---.e eee 37
Convenience opening and closing......... 46
Key replacement...............--000-- 37
LED = suse 3 = wens = » owime oy ceeme se Rees ee 39
PANICTUMECIONS: « cscsses cs wrencce so ansnesa 3 8 arene 37
Replacing the battery.................. 39
Unlocking and locking...............005 38
also refer to Vehicle key..............-. 37