2020 AUDI A8 wheel bolt torque

Wheels

exceed 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 290, fig. 189) 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. You will need a special adapter to loosen
the anti-theft wheel bolts* > page 319.
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\.

ZA 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 322, 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

304

rims yourself, because this increases the risk
of
an accident.
Loose wheel warning
Applies to: vehicles with loose wheel warning

Within the limits of the system, the loose wheel
warning in the instrument cluster warns you if
one or more wheels are loose.
Using the ABS sensors, the loose wheel warning
system compares the vibration characteristics of
the individual tires. If one or more wheels are
loose, it will be indicated in the instrument clus-
ter display with the fi indicator light and a mes-
sage. If only one wheel is affected, the location
of that wheel will be indicated.
Messages
fi Wheel bolts loose. Please safely stop the ve-
hicle and check all wheel bolts!
Loose wheel warning for at least one wheel > A\.
Check the wheel bolts on all wheels with the
wheel wrench (vehicle tool kit). Have the tighten-
ing specification checked as soon as possible with
a torque wrench. Drive carefully until then. For
the correct tightening specification, see
=> page 322, Finishing.
fi Wheel assessment active. Please continue
driving carefully
After this message appears and you have checked
the wheel bolts, the assessment phase begins
when the vehicle is in motion. This may take sev-
eral minutes.
& Loose wheel warning: malfunction! See
owner's manual
There is a system malfunction. Drive immediately
to an authorized Audi dealer or authorized Audi
Service Facility to have the malfunction repaired.

ZA\ WARNING
Wheel bolts that are tightened incorrectly can
become loose and result in loss of vehicle con-
trol, which increases the risk of an accident.
— If a message appears, reduce your speed im-
mediately and avoid any hard steering or >

Emergency assistance

>» Slide the wheel wrench from the vehicle tool kit
all the way onto the wheel bolt).
> 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
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



> Find the marking on the sill that is closest to
the tire that will be changed > fig. 201. Behind
the marking, there is a lifting point on the side
sill for the vehicle jack.
> Turn the vehicle jack located under the lifting
point on the sill to raise the jack until its arm @
=> fig. 202 is located under the designated plas-
tic mount.
> Align the vehicle jack so the arm (@) engages in
the designated Lifting point in the door sill and
the movable base (2) lies flat on the ground.
The base @) must be directly under the mount-
ing point @.
> Continue raising the vehicle jack until the wheel
lifts off the ground slightly.



RAZ-0257,

Fig. 202 Sill: positioning the vehicle jack
> Place the vehicle jack from the vehicle tool kit
ona 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 > /A\.

D_ You need the matching adapter in order to loosen and
tighten anti-theft wheel bolts* > page 319.
320

Z\ WARNING
—To reduce the risk of injury, make sure no
one is in the vehicle before raising it.
— Make sure the vehicle jack is stable. The risk
of injury is increased when the ground is
slippery or soft, because the vehicle jack
could slide or sink.
— Only raise your vehicle with the vehicle jack
provided by the factory. If you use a vehicle
jack designed for another vehicle, your vehi-
cle could slip and cause injury.
— Position the vehicle jack only at the desig-
nated mounting points on the side sill and
align the jack. Otherwise, the vehicle jack
could slip and cause an injury if it does not
have sufficient hold on the vehicle.
—To reduce the risk of injury, do not raise any
other vehicles or other loads using the vehi-
cle jack provided by the factory.
— Changes in temperature or load can affect
the height of the vehicle.
— To reduce the risk of an accident, never start
the engine when the vehicle is raised.
—To reduce the risk of injury, no work should
be performed under the vehicle while it is

raised.

4N0012721BD
Emergency assistance

@) Note
Do not Lift the vehicle by the sill. Position the
vehicle jack only at the designated mounting
points on the side sill. Otherwise, your vehicle
could be damaged.
Removing and installing a wheel
@ g + “
0 oO

B8K-1477


Fig. 204 Wheel: alignment pin in the top hole
Removing a wheel
> Remove the top wheel bolt completely using
the hex socket in the screwdriver handle from
the vehicle tool kit > fig. 203 and place it ona
clean surface.
> Then install the alignment pin from the vehicle
tool kit by hand in the empty wheel bolt hole
> fig. 204”,
> Remove the rest of the wheel bolts.
> Remove the wheel >(). The alignment pin re-
mains in the hole while doing this.

D Applies to: vehicles with ceramic brake rotors*: Use a sec-
ond alignment pin* from the vehicle tool kit for the lowest
hole according to the steps described for the first align-
ment pin.
Installing a wheel
Read the directions on > page 321 when instal-
ling unidirectional tires.
> Slide the wheel on over the alignment pin >@.
> Install the wheel bolts and tighten them gently
using the hex socket.
> Remove the alignment pin and tighten the re-
maining wheel bolt.
> Carefully lower the vehicle using the vehicle
jack*.
> Tighten the wheel bolts in a diagonal pattern
using the wheel wrench.
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.

Z\ WARNING
— Read and follow the important information
and notes under > page 296.
— Never use the hex socket in the screwdriver
handle to tighten the wheel bolts. Using the
hex
socket will not achieve the required
tightening torque, which increases the risk
of an accident.
@) 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. >


321

Emergency assistance

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 100.
> Check the tire pressure on the installed wheel
as soon as possible.
> Correct the tire pressure and store it in the MMI
=> page 308.
> 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 316.
The tire pressure must be 61 PSI (420 kPA).
Snow chains
For technical reasons, the use of snow chains on
the compact spare tire is not permitted.
322
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 50 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.
— Normal summer or winter tires must not be
mounted on the compact spare wheel rim.

Jump starting
You should only perform the steps that follow if
you have the necessary tools and technical ex-
pertise.
If the engine does not start because the vehicle
battery is drained, you can jump start your vehi-
cle using another vehicle. Jump start cables are
needed to do this.
Both vehicle batteries must have 12 V nominal
voltage. The voltage capacity (Ah) of the vehicle
battery that is giving power must not be less
than the capacity of the drained vehicle battery.
Jump start cable
Only use a jump start cable with a large enough
diameter. Note the manufacturer's specifica-
tions.
Only use a jump start cable with insulated termi-
nal clamps.
Positive cable - usually red.
Negative cable - usually black.

Index

Plug-in hybrid drive..................-. 118
Coolant......... 0. cece eee eee 281, 282
NCANSPOFt ese + ween xo mows & & eeeD se co 136
Podcast
refer to Online radio.................. 245
POL» s saws = = eetee = » gees ee epee SaeE Ee we 228
Point of interest
refer to Online Points of Interest........ 228
Polishing perc: «= seems y ercrwe v seme ee mee a oo 311
Pollen filter
refer to Pollutant filter.............004 108
Pollutant filter’. s sors 2s wwe 6 semen ao soavem a 108
Power closing (doors)............--.00005 43
PoWEr Meter. secs se wees ss hoes ye REESE 12,15
POWEFSOULGES's « = vem < s seme 2 o weme = 5 97,254
Power window malfunction............... 54
Power windows............-.0 eee eee eres 54
MalTUNCHOTins < zusm gs pecs 3 5 ome es eeu sg 54
Predictive Control; « seas se seeu i sees ae es 169
Predictive messages............... 116, 168
pre sense
refer to Audi presense.............00 182
Presentation Mode... ss es.ss esses sveeuss 240
Pressure
Tire pressure monitoring system........ 307
TANOSL: 5 o eoenis 5 ¥ cones wh omen wo mmoEE a & ERRORS 299
PROECEEING ins ve wescieue xs cosuswe 6 & eemn ¥ cnawens a 8 311.
Pyrotechnic elements.................- 336
Q
QUattIO:s » caus s eens © + wows & + Ewa 2 x Oe 2 132
Selective wheel torque control.......... 134
Quick Charging « ssc < eee ve enw ve eee ¥ 137

Radio communications equipment........ 338
Radio equipment ..............00e seas 338
Radio Standards Specification (RSS) ....... 339
Rai Beane’. cece w+ ven © © spomwe 4 «rome 6 ot 129
Rain/light sensor
Headlights ............ 0.0 eee e eee 60
Intermittent mode (windshield wipers).... 68
352
RANGels «x sscsses we saree vo sommes woo me ow ree 16
Range mMOnitor's «waco os mio av waren 2 vs 120
Range potential: ..... 06s. ccs eee eet e ees 120
Range (Clectrie) cai sence ss neues s tees eee 236
Readifig liGhtSiss « 2 nace g x mame so cere & te 64
Rear cross-traffic assist........ 0.000000 198
Rear fog lights. ..................0 02a 60
Rear lid
refer to Luggage compartment lid........ 50
Rear seat entertainment
refer to Audi tablet.................... 29
Rear Seat ReEMOte saan « ¢ gas a ¢ ceae ay eeea a 25
Device Setups « ssswe + a saws vo aromas os eran 8 26
Legalinformation................0005 269
Menus and symbols..............2--00. 27
Operating’: « s esev0 2 + mewn + + wwe ¥ 6 eouee 18, 27
Software information................. 269
RearSe@atsie. 2 cases: oo averse © 5 wawene © 0 soamine © os 76
Rear shelf
refer to Storage area behind the rear head
FESURSINIES saws s ¢ owe « ¢ geste 7 o eeee Fo Ree 99
Rearview camera........... see e eee eee 194
Rear window defogger.........0..eeeeee 106
REAR (climate control system)........... 105
REGEPEION FAME: « u orncane oo oxeriase o « esemie a 8 ome 242
Recinculation¢mode « csi « 2 mace x « wmmes x oo 106
Reclining Position ses oo wena ao cae xo wees ¥ 78
Reclining seat system. ...........0--000. 78
RECUPErStION swe ¢ x news ys eee & bee 17,118
REfrIGEratOM: « « eeae +p eaee s eee Zs PewR as 101
Gleam as « : swaweue vx smonses x canes av ania wx 313
Refueling’: = 2 sows 2 o awe 2 a eens ws eee eo 271
Remote control
Garage doOrOpenelr’s « sie a 6 ssevace 2 6 enews os 57
Remotercontrobkey®. sss so cece 6 v eve 6 ¥ ow 47
Convenience opening and closing......... 54
Key
réplacemetitics : s wsew ss vewa ss ven ss 47
LED « svaseiec 2 © asswim 0 5 wweie a % sowie ww inuate 6 6 ams 49
Replacing the battery.................. 49
Unlocking and locking...............005 48
also refer to Vehicle key..............-. 47
Removing the caps (wheel bolts)......... 319
REBalrsS = sews: x ¢ eee © 5 eee FE Owe Fe eee 336
REPEAL s,s « saver © 5 Rieu & 3 BeUER OF RUE ST 258
Replacement key............00 00 e ee eee 47
Replacement parts.......... 0-0 ee ee aes 338