Page 97 AUDI A4 2021 Owner´s Manual

Wheels

—The tire pressure monitoring system can al-
so stop working when there is an ESC mal-
function.
— Using snow chains may result in a system
malfunction.
— The tire pressure monitoring system in your
Audi was calibrated with “Audi Original
Tires” > page 242. Audi recommends using
these tires.
Selene Ma e-w egy
Applies to: vehicles with Tire Pressure Monitoring System in-
dicator
If the tire pressure changes or a tire is replaced,
it must be confirmed in the system.
> Before storing the tire pressures, make sure the
tire pressures in all four tires meet the speci-
fied values and are adapted to the load
=> page 245.
> Switch the ignition on.
> Applies to MMI: Select on the home screen: VE-
HICLE > Settings & Service > Tire pressure
monitoring > Store tire pressure > Yes, store
now.
Do not store the tire pressures if snow chains
are installed.
254

Care and cleaning


follow the instructions from the car wash
operator.
—To reduce the risk of cuts, protect yourself
from sharp metal components when wash-
ing the underbody or the inside of the wheel
housings.
— After washing the vehicle, the braking effect
may be delayed due to moisture on the
brake rotors or ice in the winter. This in-
creases the risk of an accident. The brakes
must be dried with a few careful brake appli-
cations.

@) Note
— If you wash the vehicle in an automatic car
wash, you must fold the exterior mirrors in
to reduce the risk of damage to the mirrors.
—To reduce the risk of paint damage, do not
wash the vehicle in direct sunlight.
—To reduce the risk of damage, do not wash
decorative decals* with a pressure washer.
—To reduce the risk of damage to the surface,
do not use insect removing sponges, kitchen
sponges, or similar items.
— When washing matte finish painted vehicle
components:
— To reduce the risk of damage to the sur-
face, do not use polishing agents or hard
wax.
— Never use protective wax. It can destroy
the matte finish effect.
— Do not place any stickers or magnetic
signs on vehicle components painted with
matte finish paint. The paint could be
damaged when the stickers or magnets
are removed.
Power folding exterior mirrors* must only
be folded in and out using the power folding
function.
—To reduce the risk of damage to the rims
and tires, compare the width between the
wheels on your vehicle with the distance be-
tween the guide rails in the car wash.
—To reduce the risk of damage, compare the
height and width of your vehicle with the
height and width of the inside of the car
wash.
(*) For the sake of the environment
Only wash the vehicle in facilities specially de-
signed for that purpose. This will reduce the
risk of dirty water contaminated with oil from
entering the sewer system.
Cleaning and care information
When cleaning and caring for individual vehicle
components, refer to the following tables. The
information contained there is simply recommen-
dations. For questions or for components that
are not listed, consult an authorized Audi dealer
or authorized Audi Service Facility. Also follow
the information found in > A.
Exterior cleaning



Component Situation Solution
Windshield wiper | Deposits Soft cloth with glass cleaner, > page 59
blades
Headlights/ Deposits Soft sponge with a mild soap solution®
tail lights
Sensors/ Deposits Sensors: soft cloth with a solvent-free cleaning product
camera lenses Camera lenses: soft cloth with an alcohol-free cleaning sol-
ution
Snow/ice Hand brush/solvent-free de-icing spray >

256

8W1012721BC
Care and cleaning





Component Situation Solution
Wheels Road salt Water
Brake dust Acid-free special cleaning solution
Exhaust tail pipes | Road salt Water, cleaning solution suitable for stainless steel, if nec-
essary
Decorative parts | Deposits Mild soap solution @), a cleaning solution suitable for stain-
and
trim
less steel, if necessary

Paint Paint damage Repair with touch-up paint

Spilled fuel Rinse with water immediately

Surface rust Rust remover, then treat with hard wax; for questions, con-
sult an authorized Audi dealer or authorized Audi Service
Facility.

Corrosion Have it removed by an authorized Audi dealer or author-
ized Audi Service Facility.

Water no longer
beads on the surface
of clean paint
Treat with hard wax (at least twice per year)

No shine even though
paint has been pro-
tected/paint looks
poor
Treat with suitable polish; then apply paint protectant if
the polish that was used does not contain any protectant

Deposits such as in-
sects, bird droppings,
tree sap, and road
salt
Dampen with water immediately and remove with a micro-
fiber cloth

Grease-based con-
taminants such as
cosmetics or sunblock
Remove immediately with a mild soap solution ® anda
soft cloth

Carbon compo- Deposits clean the same way as painted parts > page 255
nents
Decorative decals | Deposits Soft sponge with a mild soap solution®

@) Mild soap solution: maximum two tablespoons of
Interior cleaning
neutral soap in 1 quart (1 liter) of water


Component Situation Solution
Window glass Deposits Glass cleaner, then wipe dry
Decorative parts | Deposits Mild soap solution®
and
trim
Plastic parts Deposits Damp cloth



Heavier deposits Mild soap solution ®), detergent-free plastic cleaning solu-
tion, if necessary

257

8W1012721BC
Emergency assistance

Emergency assistance
General information
> Park the vehicle as far as possible from moving
traffic in the event of a breakdown. In the event
of a flat tire, park the vehicle ona level surface.
If you are ona steep hill, be especially careful.
> Set the parking brake.
> Switch the emergency flashers on.
> Have the passengers exit the vehicle. They
should move to a safe place, for example be-
hind a guard rail.

Z\ WARNING
Follow the steps given above. This is for your
protection and the for the safety of others on
the road.

Equipment
Vehicle tool kit, tire mobility kit, and

vehicle jack
Applies to: vehicles with the vehicle tool kit, tire mobility kit,
and vehicle jack

Fig. 169 Luggage compartment: cargo floor cover
The vehicle tool kit, vehicle jack, tire mobility kit
and compressor are stored in the luggage com-
partment under the cargo floor cover.
> Applies to: sedan: To open the front compart-
ment, lift the cargo floor cover by the strap (@).
> Applies to: allroad: To open the front compart-
ment, pull the cargo floor cover by the plastic
handle @) slightly toward the rear. Lift the car-
go floor cover over the front compartment.
> To open the rear compartment, lift the cargo
floor cover by the plastic handle @).
> Applies to: sedan: Engage the plastic handle @)
in the luggage compartment seal.
> To remove the cargo floor cover completely,
pull it toward the rear at the plastic handle @).
> Applies to: vehicles with spare tire: Turn the
handle counter-clockwise and remove the spare
tire.
> Applies to: sedan: Unhook the cargo floor cover
again
before closing the luggage compartment
lid.
Depending on vehicle equipment, the vehicle tool
kit, tire mobility kit, and compressor may be lo-
cated under another cover that is secured with a
handwheel.
Applies to: vehicles with vehicle jack in the stor-
age bag: The bag with the vehicle jack is secured
to the tie-downs in the luggage compartment
and must be secured to the tie-downs again after
using it.

ZX WARNING
Applies to: vehicles with vehicle jack in the storage bag
A vehicle jack that is unsecured, incorrectly se-
cured, or not secured in the luggage compart-
ment may slide out of place when braking,
turning,
or in an accident, which increases the
risk of injuries to vehicle passengers. To re-
duce the risk of an accident, never transport
the vehicle jack without securing it.
G) Tips
—Insome vehicles, the rear compartment
may not open.
— The vehicle jack in your vehicle is mainte-
nance-free.

Tire mobility kit
Applies to: vehicles with tire mobility kit
> Read and follow the important safety precau-
tions > page 261.
> Set the parking brake.
> Select the “P” position.
> Check if a repair with the tire mobility kit is pos-
sible > page 262.
261

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

> 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 261 and the
spare tire > page 266.
>» 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
securely while doing this and make sure your
footing 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



@

=
(G)
me
as
Fig. 173 Wheel: wheel bolts with caps
?
> Slide the plastic clip from the vehicle tool kit
onto the cap until it engages > fig. 173.
> Remove the cap with the plastic clip.
Loosening the wheel bolts
©
i=
x © a


Fig. 174 Wheel: loosening the wheel bolts
> Slide the wheel wrench* from the vehicle tool
kit all the way onto the wheel bolt.
264

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. 176 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. 175. 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

8W1012721BC
Emergency assistance

bracket on the jack @) completely covers the
notch on the vehicle.
> Align the vehicle jack so the bracket (@) covers
the notch and the base (2) is flat on the ground.
The base @) must be directly under the mount-
ing point @.
> Mount the crank on the vehicle jack: insert the
crank into the opening on the handwheel. Turn
the crank to the left or right to secure it.
> Continue raising the vehicle jack with the crank
until the wheel lifts off the ground slightly.


ZA 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.
— 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.

() 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
| B8K-1479

Fig. 178 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. 177 and place it ona
clean surface.
> Then install the alignment pin from the vehicle
tool kit in the empty wheel bolt hole by hand
> fig. 178.
> Remove the rest of the wheel bolts.
>» Remove the wheel >(). The alignment pin re-
mains in the hole while doing this.
Installing a wheel
Read the directions on > page 266 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*.
265

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