2018 AUDI A3 SEDAN warning

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Wheels with wheel bolt caps
Applies to: ve hicles wit h whee l bo lts w ith ca ps
The cops must be removed first from the wheel
bolts before the bolts con be unscrewed.
Fi g. 286 Changing a wheel: removing the whee l bo lt caps
Removing
.,. Push the pla stic clip (provided wi th the veh icle
tool kit) over the wheel bolt cap unti l the inner
retainers on the clip align with the edge of the
cover.
.,. Remove the cap with the pla stic cli p (vehicle
tool kit)
¢ fig . 286.
Refitting
.,. Place the caps ove r the wheel bo lts and push
them back on.
The caps are to protect and keep the whee l bolts
clean.
Loosening and tightening the wheel bolts
The wheel bolts must be loosened before raising
the vehicle.
F ig. 287 C hanging a wheel: loosening the wheel bo lts
Em ergen cy as sis tanc e
Loosen ing
.,. Slide t he whe el wren ch onto the wheel bo lt as
fa r as it will go.
.,. Take tight hold of the end of the wrench hand le
and turn the wheel bolts
counter-clockwise
about one single turn in the direction of arrow
¢fig. 287.
Tightening
.,. Slide the wheel wrench onto the wheel bo lt as
far as it will go .
.,. Take tight hold of the end of the wrench hand le
and turn each wheel bolt
clo ckw ise until it is
seated.
A WARNING
-- Do not use force or hurry when changi ng a
wheel
-you can cause the vehicle to slip off
the jack and cause ser ious persona l inju ries .
-Do not loosen the wheel bolts more than
on e turn
befo re you raise the veh icle with
the jack.
-Y ou r is k an injury.
(D Tips
- Never use the hexagonal socket in the han­
dle of the screwdr iver to loosen or tighten
the whee l bolts.
- If a wheel bo lt is very tight, yo u may find it
easier to loosen by ca refully pushing dow n
on the e nd of the whee l bolt w rench with
one foot only. As you do so, hold on to the
car to keep yo ur balance and take care not
to slip.
365

Emergency assistance
Raising the vehicle
The vehicle must be li~ed with the jack first be­
fore the wheel can be removed.
Fig. 288 Sill panels : mark in gs (exa mple)
Fig. 289 Sill : positio nin g th e ve hicle jack
,.. Engage the parking brake to prevent your vehi­
cle from rolling unintentionally.
,.. Move the selector lever to position P.
,.. Find the marking (imprint) on the sill that is
nearest the wheel that will be changed
c> fig . 288 . Behind the marking, there is a lift­
ing point on the sill for the vehicle jack.
,.. Vehicles with a sill: Note the position of the sill
when positioning the vehicle jack
c::> fig. 289.
,.. Place the vehicle jack (vehicle tool kit) on a 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)
c::> ,&..
,.. Turn the vehicle jack located under the lifting
point on the sill to raise the jack until its arm @
c> fig. 289 is located under the designated plas­
tic mount
c::> ,& , c::>G) .
,.. Align the jack so that its arm@ c::> fig. 289 en­
gages in the designated lifting point in the door
sill and the movable base @ lies flat on the
ground. The base @ must be
vertical under the
lifting point @.
366
,.. Wind the jack up further until the flat tire
comes off the ground
c::> ,&. .
Position the vehicle jack only under the designat­
ed lifting points on the sill
c::>fig. 288. There is ex­
actly
one location for each wheel. The jack must
not be positioned at any other location
c::> & c::>(I) .
An unstable surface under the jack can cause the
vehicle to slip off the jack. Always provide a firm
base for the jack on the ground. If necessary
place a sturdy board or similar support under the
jack. On
hard, slippery surfaces (such as tiles)
use a rubber mat or similar to prevent the jack
from slipping
c::> & .
A WARNING -
-You or your passengers could be injured
while changing a wheel if you do not follow
these safety precautions :
-Position the vehicle jack only at the desig­
nated lifting points and align the jack.
Otherwise, the vehicle jack could slip and
cause an injury if it does not have suffi­
cient hold on the vehicle .
-A soft or unstable surface under the jack
may cause the vehicle to slip off the jack.
Always provide a firm base for the jack on
the ground . If necessary, use a sturdy
board under the jack.
-On hard, slippery surface (such as tiles)
use a rubber mat or similar to prevent the
jack from slipping.
-Only raise your vehicle with the vehicle
jack provided by the factory. If you use a
vehicle jack for another vehicle, your vehi­
cle can slide and cause injury.
-Changes in load can affect the height of
the vehicle.
-Never start the engine when the vehicle is
raised, which could cause an accident.
-Support the vehicle securely with appro­
priate stands if work is to be performed
underneath the vehicle; otherwise, there
is a potential risk for injury .
-To help prevent injury to yourself and your
passengers:

Emergency assistance
-Pull th e revers ible blade from the sc rew driv ­
e r before you use the he xag onal socket in
the handle t o turn the w heel bo lts .
- W hen mounting ti res w ith
unidirectional
tread design
make sure the t read pattern is
po inted the r igh t way
c> page 36 8.
-The wheel bolts should be clea n and easy to
turn . C heck for di rt and c orros io n on t he
mating surfaces o f both the wheel an d the
hu b. Remove all dirt from t hese surfaces be­
fo re r emo untin g the wheel.
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mount ed with th eir tread pattern pointed in the
right direction .
Using a spare tire with a tread pattern
intended for use in a specific direction
W hen using a spare ti re with a tread patte rn in­
tended fo r use in a spec ific d ir e ction, please note
t he following:
- The direct ion of rotat io n is marked by an a rrow
o n the side of the tire.
- If the spare tire has to be installed in the incor­
r ect d irection, use the spare tire only tempora­
r ily s ince the t ire w ill not be ab le to achieve its
o pti mum p erf ormance c harac ter istics wi th re­
gard to a quaplaning, noise and wea r.
- We recommen d that you pay particular atten ­
t ion to this fac t during wet weathe r and that
yo u adju st yo ur spe ed to match roa d condi­
tio ns.
- Replace t he flat t ire with a new one and have i t
in stall ed on yo ur vehicle as soon as possible to
r e stor e th e han dling adv antage s of a un id ir e c­
ti on al ti re.
Notes on wheel changing
Please read the info rmation c> page 33 7 if you
are going to use a spare tire which is different
from the tires on yo ur vehicle .
Afte r you change a tire:
-Check the tire pressure on the spare immedi­
ately after installation.
368
- Have the wheel bolt tightening torque
checked with a torque wrench as soon as pos­
sible by your authorized Audi dealer or a
qualified service station.
- With steel and alloy wheel rims, the wheel
bolts are correctly tightened at a torque of
90 ft lbs (120 Nm).
- If you notice that the wheel bolts are corroded
and difficult to turn while changing a tire ,
they should be replaced before you check the
tightening torque .
- Replace the flat tire with a new one and have
it installed on your vehicle as soon as possi­
ble. Remount the wheel cover.
Until then, drive with extra care and at reduced
speeds.
A WARNING
- If you are goi ng t o equip yo ur vehicle with
t ires or r ims which diffe r from those which
wer e fac to ry install ed, th en be su re to read
t he infor matio n
c> pag e 33 7.
- Always mak e sure th e damag ed wheel or
e ve n a fl at tire and th e jack and to ol kit ar e
pr op erl y se cure d in t he l uggage com part­
me nt a nd are no t loos e in the pass eng er
c omp artment.
- In a n ac cide nt or sudde n maneuver they
co uld fly forw ard, i njuring a nyon e in the ve­
h icle.
- Alway s store damage d wheel, j ack a nd too ls
secure ly in the lu g gage compa rt ment. O th­
erwise, in an a cci den t or sudden maneuve r
they cou ld fly forwar d, cau sing injury to pas­
sen gers in the veh icle.
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Spare tire
General information
Applies to: vehicles with space-saving spare tire (compact
spare tire)
Fig. 292 Luggage co mpa rtment: cargo floo r fo lded up
(versio ns 1 and 2 )
F ig. 293 Spare tire (exa mple)
The spare tire ~ fig. 293 is intended for short­
term use only . Have the damaged tire checked
and replaced if necessary by an authorized Audi
dealer or authori zed 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.
Emergency assistance
" Lift the cargo floor by the p lastic handle.
" Hang the p lastic hook on the luggage compart ­
ment sea l
(D ~ fig. 292 .
"Turn the handwheel counter-clockwise and re-
move it .
"Remove the spare tire .
Snow chains
For technical reasons, the use of snow chains on
the compact spare tire is not permitted.
If you have to drive wi th 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 t ire th at failed.
A WARNING
--
- After installing a spare tire, the t ire pres­
sure must be checked as soon as possible.
The tire pressure is available on
~ page 341,
fig . 278
- Do not drive faste r than SO mph (80 km/h)
with a compact spare t ire. Driving faster
than that increases the risk of an accident.
- To reduce the r isk of an accident, avoid full­
throttle accelerat ion, heavy braking, and
fast cornering with the compact spare tire.
- To reduce the r isk of an accident, neve r drive
with more than one compact spare tire.
- Normal summer or winter t ires must not be
mounted on the compact spare wheel rim .
Removing the subwoofer (version 1)
Applies to: vehicles with subwoofer in the spare wheel well
The subwoofer mus t be removed before the
spare wheel* can be removed .
Fig. 294 Spare tire well: subwoofe r
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Fuses and bulbs
Fuses
Changing fuses
A fuse that has blown will have metal strips that
have burned through .
Fig. 2 96 Steering column area: cover
Fig. 297 Left s ide of the eng ine compartment: fu se cover
T h e fuses a re loca ted behind a cover in t he stee r­
ing column area ¢
fig. 296 or under a cover on
the left side of the engine compartment
¢ fig. 297.
.. Switch the ignition and all e lectr ica l equipment
off.
.. Check the following table to see which fuse be ­
longs to the equipment
¢ page 372 .
.. Remove the cover .
.. Remove the plastic cl ip from the fuse panel
cove r in the engine
compartment¢ fig. 297 .
.. Remove the fuse using the plastic clamp .
.. Replace the burned fuse w ith an identical new
one .
.. Reinsert the cove r.
Fuses and bulbs
Fuse color identification Color Current rating
in amps
Black 1
P urple 3
Light brown 5
Brown 7.5
Red 10
Blue 15
Yellow 20
W hite or tra nspa rent 25
Green 30
O range 4 0
_& WARNING
-
Do not repair fuses and neve r rep lace a blown
f u se with one that has a higher amp rating.
This can cause damage to the e lectr ica l sys­
tem and a fi re .
@) Note
If a new fuse burns out again shortly afte r you
have insta lled it, have the electrical system
chec ked as soon as poss ible by an authorized
Audi dealer or authorized Audi Service Fac ili­
ty.
(D Tips
- The following table does not list fuse loca­
tions that are not used.
- Some of the equipment listed in the fo llow­
ing tables applies on ly to certain model ver­
sions or certa in optional equipment.
371

Fuses and bulb s
front of your car which you can on ly reach
through the engine compartment .
Sheet metal and bulb ho lde rs can have s ha rp
edges that can cause ser ious c uts, parts must be
correct ly taken apart and then properly put back
together to he lp prevent breakage of parts and
long term damage from water that can enter
housings that have not been properly resea led.
F or your safety, we recommend that you have
your authorized Audi dealer replace any bu lbs for
you, s ince your dealer has the proper tools, the
correct bulbs and the expert ise.
Ga s di sch arg e lamps (Xen on li ght s)
Due to the high elect rical voltage, have the bulbs
replaced by a qua lified technic ian . Head lights
with Xenon light are ident ified by the h igh vo lt ­
age sticker.
LED h eadlight s*
LED headlights require no maintenance . Please
contact your authorized Audi dealer if a bulb
needs to be replaced .
A WARNING
Chang ing Xenon lamps w it h out the necessa ry
equ ipment can cause ser ious perso na l inju ry.
- Bul bs are p ressur ized and can explode when
being changed. Potentia l risk of i njury!
- On vehicles equipped wit h gas discharge
bulbs (Xenon light) life-threatening inju ries
can result from imp roper ha ndl ing of the
high -voltage po rtions of su ch lamps!
- Only yo ur auth o rized Aud i dea le r or q ual i­
fied workshop should change the b ulbs in
gas discharge lamps . There a re parts with
sharp edges on the openings and on the
bulb ho lders t hat can cause serious cuts . If
you are uncertain about what to do, have
the work performed by an authorized A udi
dealer or qualified workshop. Serious per­
sonal injury may resu lt from improperly per­
formed work .
(D Tips
-If you still prefer to rep lace the light bu lbs
yourself, be aware that the engine com part-
374
ment is a hazardous area to work in ¢ & in
Working in the engine comportment on
page 318 .
-It is best to ask your a uthorized Audi dea ler
whenever you want to change a bulb .

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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
~ Note
Vehicles with an automatic transmission can­
not be started by pushing or towing.
Jump starting
Preparation
If needed, the engine can be jump started by an­
other vehicle battery.
Applies to: vehicles with plug-in hybrid drive: the
connection points for the jump start cable are
different
q page 102.
If the engine does not start because the vehicle
battery is drained, you can jump start the engine
using another vehicle battery. You need a jump
start cable 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.
Emergency situations
A WARNING
--
- Applies to: vehicles with plug-in hybrid
drive: you must
not give a jump start with
your vehicle . This could cause significant
damage to the electrical system in your ve­
hicle
Q page 102.
-A drained vehicle battery can freeze at tem­
peratures around 0
Q(. If the vehicle battery
is frozen, you must thaw it before connect­
ing the jump start cables. If you do not, this
increases the risk of an explosion and chem­
ical 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.
- The engine compartment is a dangerous
area and can cause serious injuries. Before
working in the engine compartment, read
and follow the warnings
Qpage 318.
- Handling the jump start cables incorrectly
may cause the vehicle battery to explode
and lead to serious injuries . To reduce the
risk of injury, observe the following:
- Do not touch the non-insulated parts of the
terminal clamps. The cable must also not
come into contact with vehicle components
that conduct electricity when it is connected
to the positive terminal. This can cause a
short circuit.
- Route the jump start cables so they cannot
get caught in the moving parts in the engine
compartment.
- To reduce the risk of chemical burns, do not
bend over the vehicle battery.
- The locking bolts on the battery cells must
be tightened securely.
- Keep ignition sources (open flames, burning
cigarettes, etc.) away from the vehicle bat­
teries to reduce the risk of an explosion.
- Do not clamp the negative cable to fuel sys­ tem components or to the brake lines.
(LlJ} Note
- There must be no contact between the
vehicles, If there is, current could already be
.,.
375

Emergency situations
9. Route the jump sta rt cables so they cannot
get caught in the moving parts in the engine
compartment.
Starting the engine
10. First start the engine in the vehicle g iving the
charge and let it run at idle.
11. Now start the engine in the vehicle with the
drained vehicle battery and wait two to three
minutes until it "runs smoothly" .
12.
If the engine does not start, stop the starting
procedure after 10 seconds and then repeat
it after approximately 30 seconds .
13 . In the vehicle that is being jump started,
switch the heater fan and rear w indow de­
froster on to reduce any voltage peaks that may occur when disconnecting the jumper
cab les. The headlights must be switched
off.
14. While the engines a re running, remove the
cables in
reverse order from the way they
were installed, as described in ¢
page 3 76.
Make sure the cables do not get caught in
moving engine components.
15 . Close the cap on the positive term inal.
16 . Sw itch the heater fan and rear w indow de­
froster
off.
Read and follow: ¢ .&. in Preparation on
page 375
and ¢ (D in Preparation on page 375 .
@ Tips
-Make sure that the connected positive ter­
minal clamps have sufficient contact with
metal.
- The vehicle battery in your vehicle vents to
the outs ide so the battery gases drain out of
the veh icle .
Towing with a tow truck
General hint s
Your Audi requires special handling for towing.
The follow ing information is to be used by com­
mercial tow truck operators who know how to op­
erate the ir equipment safely.
-Never tow your Audi. Towing will cause dam­
age to the engine and transmission .
378
-Never wrap the safety chains or winch cables
around the brake lines .
- To prevent unnecessary damage , your Audi
must be transported with a flatbed truck.
- To load the vehicle on to the flatbed, use the
towing loop found in the vehicle tools and at­
tach to the front or rear anchorage
¢page 378 and ¢page 379.
A WARNING
A vehicle being towed is not safe for passen­
gers . Never allow anyone to ride in a vehicle
being towed, for any reason.
Front towing loop
Fig. 303 Rig ht s ide o f front b umper: install ing the tow ing
loop
The threaded opening for the towing loop is lo­
cated behind a
cover on the right side of the front
bumper .
.,,. Remove the towing loop from the vehicle tool
kit ¢
page 360 .
.,,. Press inward on the upper le~ area of the cap
with brief, strong pressure to remove it from
the bumper
¢fig. 303 .
.,,. Insert the towing loop in the threaded opening
until it stops, and then tighten it with the
wheel wrench .
.,,. After using, place the towing loop back in the
vehicle tool kit .
A WARNING
If the towing loop is not tightened until it
stops when installing, the threads may be pulled out when towing the vehicle and that
could cause an accident .
-