2018 AUDI A4 service

Care and cleaning
avoid scratches, move the scraper only in
one direction and not back and forth.
- Never remove snow or ice from door win­
dows and mirrors using warm or hot water
because this could cause cracks to form.
- To avoid damage to the rear window de­ fogger, do not apply any stickers on the
heating wires on the inside of the window.
- Decorative parts/trim
- Never use chrome care or cleaning prod-
ucts.
- Paint
-To reduce the risk of scratches, the vehicle
must be free of dirt and dust before pol­
ishing or waxing.
- To prevent paint damage, do not polish or
wax the vehicle in direct sunlight.
- To reduce the risk of paint damage, do not
polish away rust spots.
- Remove cosmetics and sunscreen immedi­
ately
-these could damage the paint.
- Displays/instrument cluster
- Make sure that the instrument cluster is
switched off and has cooled off before
cleaning it.
- Displays, the instrument cluster and the
trim surrounding it must not be cleaned
with dry cleaning methods because they could become scratched.
- Make sure no fluids enter the spaces be­
tween the instrument cluster and the
trim, because that could cause damage.
- Controls
- Make sure that no fluids enter the con-
trols, because this could cause damage.
-Safety belts
- Do not remove the safety belts to clean
them.
- Never clean safety belts or their compo­
nents chemically or with corrosive fluids
or solvents and never allow sharp objects
to come into contact with the safety belts.
This could cause damage to the belt web­ bing.
- If there is damage to the webbing, the
connections, the retractors or the buckles,
358
have them replaced by an authorized Audi
dealer or authorized Audi Service Facility.
-Textiles/artificial leather/ Alcantara
- Never treat artificial leather/ Alcantara
with leather care products, solvents, floor
polish, shoe polish, spot remove or similar
products .
- Have a specialist remove stubborn stains
to prevent damage.
- Never use steam cleaners, brushes, hard
sponges, etc. when cleaning .
- Do not turn on the seat heating* to dry the
seat .
- Objects with sharp edges, such as zippers
or rivets on clothing or belts, can cause
damage to the surface.
- Open hook and loop fasteners, for exam­
ple on clothing, can damage seat covers .
Make sure hook and loop fasteners are
closed.
- Natural leather
- Never treat leather with solvents, floor
polish, shoe polish, spot remover or simi­
lar products.
- Objects with sharp edges, such as zippers
or rivets on clothing or belts, can cause
damage to the surface.
- Never use steam cleaners, brushes, hard
sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry the
seat.
- To help prevent the leather from fading,
do not leave the vehicle in direct sunlight
for long periods of time. If leaving the ve­
hicle parked for long periods of time, you
should cover the leather to protect it from
direct sunlight.
{D Tips
- Insects are easier to remove from paint that
has been freshly waxed.
- Regular waxing can prevent rust spots from
forming.

a co .... N ,....
N .... 0 0
3 co
Placing your vehicle out
of service
If you would like to take your vehicle out of serv­
ice for a longer time, contact an authorized Audi
dealer or authorized Aud i Serv ice Facility . They
will adv ise you of important measures, such as
corros io n protection, se rvice and storage proce­
d ur es. A lso follow the information abo ut the ve­
h icle ba ttery
¢page 331.
Ca re and cleaning
359

-Never use the jack supplied with your Audi
on another vehicle, particularly on a heav ier
one. The jack is only suitable for use on the
vehicle it came w ith .
(D Tips
The vehicle jack in your vehicle is mainte­
nance-free.
Tire mobility kit
Preparation
Appl ies to: vehicles with tire mobility kit
• Read and follow the impor tant safety p recau­
t ions
q page 360.
• Set the parking b rake.
Applies to: vehicles with manual tra nsmission
• Shift into 1st gear.
Applies to: vehicles with automatic transm issions
• Select the P select or lever posit ion .
• Check if a repair with the t ire mobi lity kit is pos­
sibl e
qpage 361 .
Using the tire mobility kit
Applies to: ve hicl es with tire mobility kit
@
Fig. 280 Tire : tire da mag e t hat ca nnot be repa ired
The t ire repa ir is only mea nt for temporary use .
Change the spare tire as soon as possib le
q ,&. .
If the tire is pie rced by a n object such as a nail,
do not remove the object from the tire.
~ The t ire mobility kit may be used at temperatures
~ "' as low as -4°F (-20°C) .
" N ~ 0 0
~ co
Emergen cy a ssis tanc e
The tire mobility kit may not be used :
-if the tir e has cuts or p unctures that are larger
than 0.16 in (4 mm)
(D ~ fig. 280
- if the rim is damaged @
- if you drove with very low t ire pressure or wi th-
out ai r in the tire @
See a n author ized Audi dealer or authorized Audi
Service Facility for assistance in these situations .
,&. WARNING
-
- Please note that the tire mobility kit ca nnot
be used in all situations, a nd that it may
on­
ly be used temporarily.
- The tire sealant m ust not come in contact
with skin, eyes , o r clothes.
- I f ti re sealant gets in you r eyes or on yo ur
skin, t ho roughly rinse the affected area
im­
mediately with clean water .
- Do not inha le the fumes.
- If you swallow any of the tire sea lant, thor-
ough ly rinse your mouth immediately and
d rink a lot of water. Do not induce vomi ting.
Seek med ic al attent ion immed iate ly.
- Change yo ur clothes immediately if they get
tire sea lant on them .
- I f an a lle rgic reaction occurs, seek immed i­
ate med ica l atten tion .
- Keep the t ire sealant away from children .
(D Tips
-If sea lant leaks, allow itto dry in place. You
can then peel it off like a st icker.
- Note the expiration date on the sea lant bot­
tle. Replace the t ire sealant at an author­
ized Aud i dea ler or authorized Aud i Serv ice
Facility .
- Radio reception can be interrupted when
operating the compresso r.
- Obey all laws.
361

Emergency assistance
Repairing tires
Applies to: vehicles w ith tire mob ility k it
Fig. 281 Components of the tire mobility kit
F ig. 282 Tire mobility k it connec tion
Requirement: the tire mobility kit must be laid
out and ready for use
o page 360.
Installing the tire mobility kit
.. Open the cover @on the compressor
¢fig. 281 .
.. Remove the connector @) and pressure hose®
with pressure gauge from the housing.
• Install the compressor pressure hose ® onto
the f lange @ on the tire sea lant bottle
(D .
.. Insert the sealant bottle with the flange at the
bottom into the opening @ on the compresso r
cover.
.. Remove the valve cap from the fau lty tire.
.. Install the filler hose @) on the valve (J)
ofig. 282 .
.. Connect the plug@¢ fig. 281 to an outlet in
the vehicle.
.. Switch the ignition on.
Inflating a tire
.. Move the switch @ o fig. 282 on the compres­
sor into position
I.
362
.. Inflate the tires to between 29 psi ( 200 kPA)
and 36 psi (250 kPA) and read the pressur e 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 sea lant
can be distributed in the tire. Pump up th e tire
aga in¢ ,&.
.
.&_ WARNING
-Read and follow the manufacturer's safety
precaut ions on the compressor and in the
instructions on the bottle of sea lant .
- If a tire pressure of 29 psi (200 kPA) cannot
reached after inflating for 6 minutes, then
the tire is too severely damaged. Do not
continue driving.
- If the tire cannot be repa ired with the tire
sealant, see an authorized Audi dealer or au­
thorized Audi Service Facility for assistance.
(D Tips
Do not operate the compressor for more than
six minutes continuously, or it can overheat.
Once the compressor has cooled, you can con­
tinue to use it.
Completing
App lies to : vehicles wit h tire mob ility kit
.. Adhere the sticker that says "max. SO mph
(max . 80 km/h)" that is provided with the tire
mob ility kit with in the driver's field of vision.
.. Stop the vehicle after driv ing for about 10 mi­
nutes and check the tir e pressure.
.. If the tire press ure is lower than 19 psi (130
kPA), then the tire is too severely damaged. Do
not continue driving .
.&_ WARNING
Pay attention to the following after repairing
the tire:
- Do not drive faster than SO mph (80 km/h).
- Avoid hard acceleration, braking sharply,
and fast cornering .
- The vehicle may become more difficult to
con trol.

-If the t ire is too severely damaged , see an
authorized Aud i dealer or authorized Aud i
Service Facility for assistance .
@ For the sake of the environment
You can give the used tire sealant bottle to an
author ized Audi dealer or authorized A udi
Serv ice Facility for disposal.
@ Tips
Remember to obtain a new bottle of sea lant
from an authorized Audi dea ler or authorized
Audi Service Facility after repair ing a tire.
Replacing a wheel
Preparation
You must complete the preparation before
changing a tire .
.,. Read and follow the important safety precau­
tions ~ page 360 .
.,. Set the parking brake .
Applies to: ve hicles with man ua l transmiss ion
.,. Shift in to 1st gear.
Applies to: ve hicles with automat ic t ra n smi ssio ns
.,. Select the P selector leve r pos ition .
.,. When towing a trailer: disconnect the tra iler
from your veh icle .
.,. Lay out the veh icle tool kit 9 page 360 and the
spare
tire ~ page 367 .
.,. Switch the ignition off .
A WARNING
When using the vehicle jack* on a road with a
steep hill or offroad, you must take extra pre­
cautions to prevent the vehicle from rolling .
Use suitab le objects to b lock the front and
back of the wheel that is diagonal from the
wheel with the flat tire.
A WARNING
You or your passengers could be in ju red wh ile
chang ing a wheel if you do not follow these
safety precautions :
Emergen cy a ssis tanc e
-If you have a flat tire, move a safe distance
off the road. Turn off the eng ine, turn the
emergency flashers on and use other warn­
ing dev ices to alert other motorists .
- Make sure that passengers wait in a safe
place away from the vehicle and well away
from the road and traff ic .
- To help prevent the veh icle from moving
suddenly a nd possib ly slipping off the jack*,
always fully set the park ing brake and block
the front and back of the wheel diagonally opposite the wheel being changed. When
one front wheel is lif ted off the gro und,
p la cing the Automa tic Transmission in P
(Park) will
not prevent the vehicle from
moving.
- Before you change a wheel, be sure the
g ro und is leve l and firm. If necessary, use a
sturdy board under the jack *.
- Always store the vehicle tool kit, the jack *
a nd the replaced tire in the luggage com­
partment
~ page 259 .
(D Tips
Obey all laws .
Removing the caps
Fig. 283 W hee l: whee l bolt s w ith ca ps
.,. Slide the p lastic clip (from the veh icle tool k it)
on to the cap unt il it
engages ~ fig. 283.
.,. Remove the cap with the p lastic clip.
363

a co .... N ,....
N .... 0 0
3 co
-Always store damaged wheel, jack* and
tools securely in the luggage compartment.
Otherwise, in an accident or sudden maneu­
ver they could fly forward, causing injury to
passengers in the vehicle.
Space-saving spare tire
App lies to: ve hicles with space-saving spare t ire (co mpact
spare tire)
The spare tire is intended for short -term use on ­
ly. Have the damaged tire checked and replaced,
if necessary, by an authorized Audi dealer or au­
thorized 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 f loor cover
c::>page360.
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.
If you have to drive with snow chains and a front
tire fails, mount the spare t ire in place of a rear
tire. Install the snow chains on the rear tire that
you removed, and insta ll that in place of the
front tire that failed.
A WARNING
-After installing a spare tire, the tire pres­
sure 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.
-T o reduce the risk of an accident, avoid full­
thrott le acceleration, heavy braking, and
fast cornering with the compact spare tire.
-To reduce the risk of an accident, never drive
with more than one compact spare tire.
-Normal summer or winte r tires must not be
mounted on the compact spare wheel rim.
Emergency assistance
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 rep laced, if necessary, by an authorized A udi
dealer or authorized Audi Service Facility as soon
as possible.
There are some restrictions on the use of the co l­
l apsible spare tire. The collapsible spare tire has
been designed spec ifically for your type of vehi­
cle. Do not replace it with the collaps ible spare
t ir e from another type of vehicle .
The co llapsible spare tire is located in the lug­
gage compartment under the cargo floor cover.
Requirement: the vehicle too l kit
c::> page 360 and
the compressor must be laid out .
Removing
"' Remove the cargo floo r cover c::> page 360,
fig. 279.
"' Turn the handwheel counter-clockwise and re-
move it.
"' Remove the co llapsible spare tire.
You must inflate the collapsible spare tire be­
fo rehand in order to use it.
Inflating
"' Remove the valve cap from the collapsible
spare tire.
"'Tighten the comp ressor hose on the collapsible
spare tire valve.
"'Connect the comp ressor hose to a vehicle soc k­
et and switch it on .
"'Let the compressor run until the specified value
on the tire pressure sticker is reached
c::> page 344, fig. 277 c::>(D.
"'Screw the valve cap back onto the valve.
Returning to storage
"'R emove the valve cap to drain the air .
"'Wait severa l hours before placing the collapsi­
ble spare tire in the spare wheel well. Only then
w ill it fold down comp letely so that you can
store it securely .
"' Then screw the valve cap back onto the valve . ..,_
367

Fuses and bulbs
Fuse color identification
Color Current rating
in amps
Black 1
Purple 3
Light brown 5
Brown 7 .5
Red 10
Blue 15
Yellow 20
White or transparent 25
Green 30
Orange 40
A WARNING
Do not repair fuses and never replace a blown
fuse with one that has a higher amp rating.
This can cause damage to the electrical sys­
tem and increases the risk of fire.
(D Note
If a new fuse burns out again shortly after you
have installed it, have the electrical system
checked as soon as possible by an authorized
Audi dealer or authorized Audi Service Facili­
ty .
Q) Tips
-The following table does not list fuse loca­
tions that are not used.
- Some of the equipment listed in the follow­
ing tables applies only to certain model ver­
sions or certain optional equipment.
370
Fuse assignment - driver's/front
passenger's footwell
Fig. 291 Driver's footwell (left-hand drive vehicle): fuse
panel with plas tic clip
Fig. 292 Front passe nger's footwell (right -hand drive vehi-
cle): fuse panel with plastic clip
Ill>

Emergency situations
Emergency situations
General
This chapter is intended for trained emergency crews and working personnel who have the nec­
essary tools and equipment to perform these
operations.
Starting by pushing or
towing
(D Note
Vehicles with an automatic transmission
cannot be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine con be started by con­
necting it to the battery of another vehicle.
If the engine should fail to start because of a dis­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, using a
pair of jumper cables to start the engine.
Jumper cables
Use only jumper cables of sufficiently large cross
section
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use only jumper cables with
insulated terminal
clamps which are distinctly marked :
plus(+) cable in most cases colored red
minus(-) cable
in most cases colored black.
A WARNING
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal in­
jury. Follow the instructions below for
safe
handling of your vehicle's battery.
-Always shield your eyes and avoid leaning
over the battery whenever possible.
-A dead battery can freeze at temperatures
around 32 °F (0 °C) . If the vehicle battery is
frozen, you must thaw it before connecting
the jump start cables.
If you do not, this in-
374
creases the risk of an explosion and chemi­
cal burns. After jump starting the vehicle,
drive to an authorized Audi dealer or author­ ized Audi Service Facility immediately to
have the vehicle battery checked.
- Do not allow battery acid to contact eyes or
skin . Flush any contacted area with water
immediately.
- Improper use of a booster battery to start a
vehicle may cause an explosion .
- Vehicle batteries generate explosive gases.
Keep sparks, flame and lighted cigarettes
away from batteries.
- Do not try to jump start any vehicle with a
low acid level in the battery.
- The voltage of the booster battery must also
have a 12-Volt rating. The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batteries of different voltage or substantial­
ly different
"Ah" rating may cause an explo­
sion and personal injury.
- Never charge a frozen battery. Gas trapped
in the ice may cause an explosion.
- Never charge or use a battery that has been
frozen. The battery case may have be weak­
ened.
- Use of batteries of different voltage or sub­
stantially different capacity (Ah) rating may
cause an explosion and injury. The capacity (Ah) of the booster battery should not be
lower than that of the discharged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
r=:> poge 323.
([) Note
-Applying a higher voltage booster battery
will cause expensive damage to sensitive electronic components, such as control
units, relays, radio, etc.
- There must be no electrical contact between
the vehicles as otherwise current could al­
ready start to flow as soon as the positive
(+) terminals are connected.