2020 AUDI A4 trailer

Wheels

Tires and vehicle load limits
There are limits to the amount of
load or weight that any vehicle
and any tire can carry. A vehicle
that is overloaded will not handle
well and is more difficult to stop.
Overloading can not only lead to
loss of vehicle control, but can al-
so damage important parts of the
vehicle and can lead to sudden
tire failure, including a blowout
and sudden deflation that can
cause the vehicle to crash.
Your safety and that of your pas-
sengers also depends on making
sure that load limits are not ex-
ceeded. Vehicle load includes ev-
erybody and everything in and on
the vehicle. These load limits are
technically referred to as the vehi-
cle’s Gross Vehicle Weight Rating
(“GVWR”).
The “GVWR” includes the weight
of the basic vehicle, all factory in-
stalled accessories, a full tank of
fuel, oil, coolant and other fluids
plus maximum load. The maxi-
mum load includes the number of
passengers that the vehicle is in-
tended to carry (“seating capaci-
ty”) with an assumed weight of
150 lbs. (68 kg) for each passen-
240
ger at a designated seating posi-
tion and the total weight of any
luggage in the vehicle. If you tow
a trailer, the weight of the trailer
hitch and the tongue weight of
the loaded trailer must be includ-
ed as part of the vehicle load.
The Gross Axle Weight Rating
(“GAWR”) is the maximum load
that can be applied at each of the
vehicle’s two axles.
The fact that there is an upper
limit to your vehicle’s Gross Vehi-
cle Weight Rating means that the
total
weight of whatever is being
carried in the vehicle (including
the weight of a trailer hitch and
the tongue weight of the loaded
trailer) is limited. The more pas-
sengers in the vehicle or passen-
gers who are heavier than the
standard weights assumed mean
that less weight can be carried as
luggage.
The Gross Vehicle Weight Rating
and the Gross Axle Weight Rating
are listed on the safety compli-
ance sticker on the driver’s side B-
pillar respectively on the front
end of the driver's door.

Wheels



Overloading a vehicle can cause
loss of vehicle control, a crash Use the example below to calcu-
or other accident, serious per- late the total weight of the pas-
sonal injury, and even death. sengers and luggage or other
—Carrying more weight than things that you plan to transport
your vehicle was designed to so that you can make sure that
carry will prevent the vehicle your vehicle will not be overload-
from handling properly and in- ed.
crease the risk of the loss of Steps for Determining Correct
vehicle control. Load Limit
—The brakes on a vehicle that 1. Locate the statement “THE
has been overloaded may not COMBINED WEIGHT OF OCCU-
be able to stop the vehicle PANTS AND CARGO SHOULD
within a safe distance. NEVER EXCEED XXX KG OR XXX
—Tires on a vehicle that has LBS” on your vehicle’s placard
been overloaded can fail sud- (tire inflation pressure label)
denly, including a blowout and > page 237, fig. 171.
sudden deflation, causing loss 2. Determine the combined
of control and a crash. weight of the driver and pas-
—Always make sure that the to- sengers that will be riding in
tal load being transported - your vehicle.
including the weight of atrail- | 3, Subtract the combined weight
er hitch and the tongue of the driver and passengers
weight of a loaded trailer - from “XXX” kilograms or “XXX”
does not make the vehicle pounds shown on the sticker
heavier than the vehicle’s > page 237, fig. 171.
Gross Vehicle Weight Rating. 4. The resulting figure equals the

8W1012721BB
available amount of cargo and
luggage load capacity. For ex-
ample, if the “XXX” amount
equals 1400 lbs. and there will >
241

Wheels

be five 150 lbs. passengers in
your vehicle, the amount of
available cargo and luggage
load capacity is 650 lbs.
(1400-750 (5 x 150) = 650
lbs.)
5. Determine the combined
weight of luggage and cargo
being loaded on the vehicle.
That weight may not safely ex-
ceed the available cargo and
luggage load capacity calculat-
ed in Step 4.
6. If your vehicle will be towing a
trailer, load from your trailer
will be transferred to your vehi-
cle. Consult this manual to de-
termine how this reduces the
available cargo and luggage
load capacity of your vehicle.
>Check the tire sidewall
(=> page 228, fig. 168) to deter-
mine the designated load rating
for a specific tire.
Wheel bolts and rims
Wheel bolts
Wheel bolts must be clean and loosen/tighten
easily.
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
disassemble them > A\.
242

Z\ WARNING
Wheel bolts that are tightened 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 > page 258, Finishing.
— 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 significantly improve the vehicle's
handling when driving in winter conditions. Be-
cause of their construction (width, compound,
tread pattern), summer tires provide less traction
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 227. 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 237.
The effectiveness of winter tires is reduced great-
ly when the tread is worn down to a depth of
0.16 in (4 mm). The characteristics of winter tires
also decrease greatly as the tire ages, regardless
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.

Emergency assistance

> Set the parking brake.
> Select the “P” position.
>» When towing a trailer: disconnect the trailer
from your vehicle.
> Lay out the vehicle tool kit > page 253 and the
spare tire > page 258.
> Switch the ignition off.
> Turn the wheel bolt approximately one turn to
the left. To achieve the required torque, hold
the end of the wheel wrench. If the wheel bolt
will not loosen, press carefully on the wheel
wrench with your foot. Hold onto the vehicle se-
curely while doing this and make sure your foot-
ing is stable.

ZA WARNING
The vehicle must also be secured to prevent it
from rolling when using the vehicle jack*. Use
suitable objects to block the front and back of
the wheel that is diagonal from the wheel
with the flat tire.


Removing the caps



@

ie

zis
Fig. 176 Wheel: wheel bolts with caps
?
> Slide the plastic clip from the vehicle tool kit
onto the cap until it engages > fig. 176.
> Remove the cap with the plastic clip.
Loosening the wheel bolts
©
i=
x © a


Fig. 177 Wheel: loosening the wheel bolt
> Slide the wheel wrench from the vehicle tool kit
all the way onto the wheel bolt.
256
ZA WARNING
To reduce the risk of an accident, only loosen
the wheel bolts gently one turn before raising
the vehicle with the vehicle jack*.

Raising the vehicle
Applies to: vehicles with vehicle jack
© & Ss
g
= % oo


Fig. 179 Sill: positioning the vehicle jack
> Place the vehicle jack from the vehicle tool kit
ona firm surface. Use a flat, stable support if
necessary. Ona slippery surface such as tile,
you should use a non-slip pad such as a rubber
mat > A\.
> Find the marking on the sill that is closest to
the tire that will be changed > fig. 178. Behind
the marking, there is a lifting point on the side
sill for the vehicle jack.
> Turn the handwheel to raise the vehicle jack un-
der the lifting point on the side sill until the >

Fuses and bulbs


Fuse panel © (brown)
No. | Equipment


Telephone, mobile device charging func-


AN WARNING
If you still would like to try replacing the
bulbs in your vehicle yourself, read the warn-


6 |Tire pressure monitoring system
7 |Vehicle opening/start (NFC)
Auxiliary heating radio receiver, smart
module (fuel tank)



10 |TV tuner, gateway

11 | Auxiliary battery control module

12 | Garage door opener

13 | Rearview camera, peripheral cameras
14 | Right tail lights
16 | Right safety belt tensioner


Fuse panel (E) (red)
No. | Equipment


Exhaust treatment
Trailer hitch (right light)
Trailer hitch
Trailer hitch (left light)
Trailer hitch (socket)
10 |Allroad sport differential
11 | Exhaust treatment




Wl)
OIN|
Mm]
w


Bulbs
Replacing bulbs
Having a bulb replaced by an authorized Audi
dealer or authorized Audi Service Facility in cases
of doubt is recommended. 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.
268
2 |,
tion ings regarding working in the engine compart-
3 Right front seat electronics, lumbar sup- ment > A\ in General information on
port page 214.
4 |Side assist
@) Note
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.

8W1012721BB

Speed limit information
refer to Traffic sign recognition......... 118
Speed limits
refer to Traffic sign recognition......... 118
Speedometer......... cece eee ee eee 1d,
Speed warning system..............0005 118
Sport differential..............00220008 108
Start/Stop system. .......-...0-.00 ee eee 99
Switching offandon..............000- 100
Starting to drive... ... eee eee eee 93.
Starting (EMGIME)'. . scssese a» wecnse sw apecmae 9 & exe 100
SECOTING . cassene x susows @ eneass a @ stetaie w & ne 107
Audi drive select. ............0 eee e eee 106
also refer to Steering...............55 107
Steering lock: « s saeg ss eae sv pees se eeR ees 92
Steering wheel
AGJUStING!a: « 9 seovos x 3 waxsu a ¢ Hawes 3 2 Bem 4 62
Adjusting manually..................0- 62
Shift
paddles.......... 00... cece sees 96
Steering wheel heating................. 90
also refer to Multifunction steering wheel. . 12
Steps for determining correct load limit... 241
Stopover (navigation) .................. 180
Stopping (ENGIN) ax « = was = 2 eevee 3 « swe s & 100
StOrage areas: = case « = ems sy ewe FE RE Be 78
Stored stations
refer to Presets. « 2 oxo oe aww oo coe vo 190
Sunshade
ReardOorst. « avers s 1 ana w a aumvens 0 0 amine © 6 54
ROOF... eee ee 44
SUN VISOFS 2... eee ee eee 54
SUSPEASION) csr 6 6 ccesere & 6 esennire & presen a 6 stenonts 106
Audi drive select.......... 0.0 eee eee 106
Swapping calls.............-.00022000e 164
Swerve assist... 2.0... e eee eee eee 142
Symbols
Navigation... 0.0.0... 0... e cece ee eee 180
UratfiGws = s wows ss wewe : eens t see cs ee 185
also refer to Indicator lights.............. 7
SYNG (Button) « 0 seen oo snen on onan wo cmon x 89
SYSECMTSELLINGS senses oo cases oo sees o wee» 206
T
Tachometer es s ¢ oases se mewn 2 x qawe 2 nae 11,13
Tail lights
Cleaning « x ccsiese i a scene x = suenens 4 x semcwre wo ome 248
Techriicalidatais © « swivis w sswersse « wees 2 e coe 277
Technical modifications................. 272
Telephone’: « ¢ saws = + sews os eee oe ews ee 158
Accepting/ending acall................ 164
Audi phone box........ 0... e ee eee eee 160
Charging the battery (USB)............. 160
Charging the battery (wireless)......... 160
Connecting a mobile phone............ 158
Diglinig ANUMBEr: « caus « gaan ss pews ae ee 164
Exterior'antennass «+ sccscs ae anne a i atiome a a 160
Mobile device reminder signal.......... 161
Options during aphonecall............ 164
Playing Musi¢ sven «0 ven oe ence omen ve 195
Temperature display (outside temperature) .. 14
Temperature gauge
COOLAME cassie» 5 cxcowms 5 0 esemns 4 0 omnis a 8 ee & 11
TeXtINPUt sss 3 6 cw oo wee oo een oo oe 21
Text messages
SettingS 0.0... 0. cece eee eee eee eee 166
Text messaging settings............... 166
also refer to Text messages............ 166
TiesdOWiS's = saves 5 « ees 3 2 cess ce eae «Fae 84
Tightening specification
Wheel Doltstin so icnasi s 2 aasn <0 mason © svann 258
Tightening specification (wheel bolts) .... . 258
Ti@s: = worms < 5 eeu 2 ¢ ews ge eee Fo ee zs 15
tiptronic
refer to Manual shifting................ 96
Tire Mobility System (tire repair set)....... 253
Tin@S « wee ¢ & wea & Goes x eR ge ROR a 2 227
GRANGIAG' ie = soci 2 eranenss e mweeee a meee 2 255
Low-profile tires. .............00 0-0 ee 243
Repainisets ; swe : seen os een ¢ 5 em vb 253
Senvice liferces < viva + wean @ + sae wo eave 236
Tire pressure... 2... eee eee eee 237
Tire pressure monitoring system.... 244,245
Tire pressure table..................-. 239
Tire pressure (trailer mode)............ 112
Treadwear indicators.................. 236
Uinidireetioniale: « = exces 22 ween 2 ¢ eeem 229, 258
Uniform tire quality grading............ 243
Tires and wheels
Glossary of tire and loading terminology .. 230
Tires and vehicle load limits............ 240
TOO Sissi: ¢ 2 czas ¢ aes 2 Gee EX Ream FE eee 253
Top tether anchor (securing the child safety
S@at)'s « v saws y # ows ¥ 0 eww ey coo Se ED a YY 76
289

Index

Touch display
Adjusting the brightness..............-. 18
TPMS
Tire pressure monitoring system........ 245
Traffic information...............00000- 186
Online traffic information.............. 185
also refer to Online traffic information... 185
Trafficjamiassist's sss 2 sss vo even oo soe 134
Traffic light information................ 120
Traffic sign recognition................. 118
Traffic’ SigtS ses: < = seee ss mem tv eee soe 121
Trailer towing.......... 0... cee eee eee 112
TONGUE WEIGKts « & sess « » sever x 2 wawe a exe L12
Trailerload «5 ccc so sesmee « oramess ao coenees wo 112
TUPMASSISE secs oo csecers oo weaaee oe comin ao eee 142
Turnsignal srsics a = cies «2 meee «2 wawen 6 ee 49
U
Uniform tire quality grading............. 243
Unlocking and locking. ..............0005 30
Bysremiote:control.. « scsi sv nmin 6 o eames vee 35
Using the lock cylinder................. 32
With the central locking switch.......... 32
With the convenience key............... 35
Update (Software) ices cs sssseu oo savin oo swe 207
USB
IAGAPEOR « ss mec = suances 1 « wane a + swewon & 5 at 160
USBicharging ports. . wens «x swauue ¥ x sons © arene 78
USB drive
Supported types/formats.............. 201
USB stick
refer to Audi music interface........... 196
Users
LO¢al USERS wane: x x seme 5 2 meee 2 eee 2 5 oe 27
MMYAUGEUSCDS is oo cess 2 6 wanes + sete a = ea 27
Using residual heat. .... 0.0... 0c cece e nee 90
V
Valet parking sews «= sees = s eee es cee ee bes 44
Vanity OP icx « = cacy & 2 seus © 2 wows 5 y wee & 54
290

Vehicle
Care/cleaning........ 2. cece eee eee ee 247
DIMERSIONS « easy s x wee s wenn se Wee a 277
Identification data................0.. 277,
Out of service... 6... ee eee eee ee 252
RaiSinG’: 5 = sees & x ween 5 3 wees ¢ y eee ¢ eos 256
StartinGbsvis & + wwe 2 6 eww 2 6 ase 2 eww we 92
Vehicl@eare snow s eam ss wives a ¢ wens + & ess 247
Vehicle control services..............0.. L71,
Vehicle data label...............--0000- 277
Vehicle identification number............ 277
Vehicle jack. .... 2... ee eee eee eee 253
LifEiNG POINtS an « « aees s waas ao pews se row 256
Vehicle key os ¢ s seed co eee ss ease es pees 30, 34
Vehicle starting system. ............200- 100
Vehicle tool kit............. 00.22 eee eee 253
Ventilation... 2.0... . cee eee eee eee 87
VIEW button. ........ 0.00. f eee eee eee ee 12
Woicermaibecns ico ccnceie va comers vw asecone woo axes © « 164
Voice recognition system.............0-0. 24
External... 2... 2... eee eee eee 25
Operating s < = esos x s ewe < 4 eee ye GF Sanas Go 24
Ww
Warning lights
refer to Indicator lights...........--0000- 7
Washing matte finish paint.............. 247
Wave band
refer to Frequency band............... 188
Weightsies <= cess ss news se tees e aan se He 278
WHEEL bOltSs » snau se aeay sx meme 2 neem 2 a 242
Changingia tines 2 sxe x 2 snes «x ananan @ ona 255
Whee lst. & scent oo ome so emu oo vere 2s me 227
Cleaning... .. cece cece ee eee eee 248
Glossary of tire and loading terminology .. 230
Replacing « waa a s sone s ¢ wane 2 2 means ¢ 2 ve 255
Tire pressure monitoring system........ 245
Tires and vehicle load limits............ 240
Wheelwrench.............--000ee eee 253
Wi-Fi
Hotspot settingS............ceeeeveee 172
Using:a hotspots seicne so cvs 2 2 eae 2 & ewe 170
Windows
Child safety lock... 2... ee eee eee eee ee 4l
Cleaning and removing ice............. 249
Convenience opening and closing......... 42