2016 AUDI A4 brake light

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-To avoid being burned, do not spill anti­
freeze or coolant on the exhaust system or hot engine parts. Under certain condi­
tions, the ethylene glycol in engine cool­ ant can catch fire.
- Antifreeze is poisonous. Always store anti­
freeze in its original container and well out
of the reach of children.
- If you drain the coolant, it must be caught
and safely stored in a proper container
clearly marked "poison".
(D Note
-Do not add coolant if the expansion tank is
empty . Air could enter the cooling system
and damage the engine. If this is the case,
do not continue driving. Seek professional
assistance.
- Coolant pollutes the environment and could
cause an engine fire. Excess coolant will be
forced out through the pressure relief valve
in the cap when the engine becomes hot.
- If, in an emergency, only water can be add­
ed, the correct ratio between water and an­
tifreeze
c::> page 208 must be restored as
soon as possible.
@) For the sake of the environment
Drained coolant should not be reused. Always
dispose of used coolant while observing all
environmental regulations.
Radiator fan
The radiator fan switches on automatically by it­
self.
The radiator fan is driven by the engine via the V­
belt . The viscous clutch regulates the speed of
the fan according to the temperature of the cool­
ant.
An auxiliary electric radiator fan* switches on and
off depending on coolant temperature and other
vehicle operating conditions.
After you switch the engine off, the auxiliary fan
can continue running for up to 10 minutes -even
Checking and Filling
with the ignition off. It can even switch on again
later by itself
c::> & , if
- the temperature of the engine coolant rises due
to the heat build-up from the engine in the en­
gine compartment, or
- the engine compartment heats up because the
vehicle is parked in intense sunlight.
A WARNING
-To reduce the risk of personal injury never
touch the radiator fan.
- The auxiliary electric fan is temperature
controlled and can switch on suddenly even
when the engine is not running.
- The auxiliary radiator fan switches on auto­
matically when the engine coolant reaches a
certain temperature and will continue to run
until the coolant temperature drops.
Brake fluid
Checking brake fluid level
The broke fluid level con be checked with o quick
glance .
Fig. 185 En gi ne compartmen t: Cover on the b rake fl uid
reservoir
Before you check anything in the engine compart ­
ment,
always read and heed all WARNINGS
c::> _.& in Working in the engine comportment on
page 203.
.,. Read the brake fluid level from the brake fluid
reservoir
c::> fig. 185, c::> page 205, fig . 181 . The
brake fluid level must be between the "MIN"
and "MAX" markings.
211

Check ing and F illing
The brake fluid rese rvoir is located at the rear
partition of the engine compartment on the l eft
side ¢
page 205 .
The fl uid level may drop slightly after some time
due to the automatic adjustment of the brake
pads . This is not cause for alarm.
If th e b rake fl uid level fa lls considerably be low
the "M IN" mark, the b rake warning/ind icator
lig ht ( U.S. mode ls :
1111 , Canadian models:. )
will come on ¢
page 15. Do not contin ue to oper ­
ate the vehicle . T he comp lete brake system
should be thoroughly checked by an authori zed
Aud i dealer or qualified workshop and the cause
corrected . If the brake flu id level is too low, the
b rake warning/indicator light will i llum inate.
Contact a n author ized Audi dealer
immediately .
{D) Tips
The brake fluid reservoir is located under­
neath the cover .
Changing brake fluid
Have the brake fluid changed by an experienced
technician .
Brake fluid absorbs mo isture from the air. If the
water content in the b rake fluid is too high, cor­
rosion in the brake system may resu lt afte r ape ­
riod of t ime. The boiling poi nt of the brake flu id
will also decrease cons iderably and decrease
b raking perfo rman ce.
Therefore, the brake fluid must be changed
every
two year s.
Always use new brake fluid wh ic h con­
forms to Fede ral Motor Veh icle Standard "FMVSS
1 16 DO T 4".
The brake fluid reservoir can be diff icult to reach,
therefore, we recommend that yo u have the
brake fl uid changed by yo ur autho rized
Audi
dealer .
Your dealer has t he corre ct tools, t he
right brake fluid and the know-how to do this for
you.
A WARNING
- Brake fluid is poisonous. It must be stored
only in the closed orig inal container out of
the reach of chi ldren!
212
- Bra ke fa ilure ca n result from old or inapp ro­
priate brake fluid . Observe these precau­
tions:
- Use only brake fluid t hat meets SA E speci­
fi ca ti on
J 170 3 and con forms to Federa l
Motor Ve hicle Standard 116 . Always check
wi th yo ur autho rized Audi dea le r to make
s ur e yo u are using the correct brake fluid .
The correct type of brake flu id is also ind i­
cated on the b rake fluid reservo ir .
- The brake fluid m ust be new . Heavy use of
the brakes can cause a vapo r lock if the
brake fluid is left in the system too long .
This can se riously affect the efficiency of
the b rakes as well as your safety . This
could resu lt in an accident .
(D Note
Brake fluid will damage the paint of your veh i­
cle.
@ For the sake of the environment
Because of the problem o f proper d isposa l o f
brake fluid as well as the spec ial too ls re­
q ui red a nd the necessary expertise, we rec­
omme nd that you have the bra ke f luid
changed by yo ur autho rized Aud i dea le r.
Battery
, General information
U nder normal operating condit ions, the battery
i n your Audi does not need any maintenance.
With
high outside temperatures or long daily
drives we recommend that you have the elect ro ­
lyte level c hecked by an au thorized Aud i dealer o r
qualified workshop. The electro lyte level shou ld
a lso be che cked each time the battery is c ha rged
~ page 214.
Have the batte ry chec ked when you take yo ur ve­
hicle in for service. You are we ll adv ised to re­
pla ce a battery tha t is older than 5 yea rs.
With certain types of airbag deployment, t he
batte ry is d iscon nected from the ve hicle electri­
ca l system for safety reasons ¢.&.
in Repair, care
and disposal of the airbags on page 151. .,.

Emergency assistance
"'Let the compressor run until the va lue specified
on the tire pressure label is reach ed
¢ page 227, fig. 191 . Switch the compressor
off after running for 12 minutes at the mos t -
danger of overheating!
A WARNING
The compressor and the tire filler hose can become extremely hot while they are running
- danger of burns!
CD Note
Switch the compressor off after running for
12 minutes at the most -danger of overheat­
ing! Allow the compressor to cool down for a
few minutes before you use it again.
Replacing wheels
Before changing a wheel
Observe the following precaut ions for your own
and your passenger's safety when changing a
wheel.
"' After you experience a tire failure, pull the car
well away from moving traffic and try to reach
level ground before you stop ¢.&_ .
"' All passengers shou ld
leave the car and move
to a safe location (for instance, behind the
guardrail) ¢.&_ .
"' Engage the
parking brake to prevent your vehi­
cle from rolling unintentionally ¢&_ .
"' Sh ift into
1st gear on vehicles w ith manual
transmission, or move the
selector lever to the
P position
on vehicles with automatic transmis­
sion .
"' If you are towing a trailer: unhitch the trailer
from your vehicle.
"' Take the
jack¢ page 237 and the spare tire
¢ page 238 out of the luggage compartment .
A WARNING
You or your passengers could be injured wh ile
chang ing a wheel if you do not follow these
safety precautions :
- If you have a flat tire, move a safe distance
off the road . Turn off the engine, turn the
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emergency flashers on and use other warn­
ing devices to alert other motorists.
- Make sure that passengers wait in a safe
place away from the vehicle and well away
from the road and traffic.
- To help prevent the vehicle from moving
suddenly and possibly slipping off the jack,
always fully set the parking brake and block
the wheel diagonally opposite the wheel be­ ing changed with the folding chocks or oth­
er objects . When one front whee l is lifted
off the ground, placing the Automat ic
T ransmission in "P" (Par k) w ill
not prevent
the vehicle from moving.
- Before you change a wheel, be sure the
ground is level and firm . If necessary, use a
sturdy board under the jack.
- Always store the vehicle tool kit, the jack*
and the replaced tire in the luggage com­
partment
¢ page 126.
CD Note
If you a re changing the wheel on a steep in­
cline, use a rock or similar object to block the
opposite wheel to prevent the vehicle from
moving.
(D Tips
Obey all laws.
Changing a wheel
When you change a wheel, follow the sequence
described below step-by-step and in exactly that
order .
1. Remove the decorative wheel cover* or the
wheel bolt caps* . For more details see also
¢ page 241, Decorative wheel covers or
¢ page 241, Wheels with wheel bolt cops.
2. Loosen the wheel bolts ¢page 242.
3. Locate the proper mounting point for the
jack and align the jack below that point
¢ page 242.
4. Lift the car with the jack¢ page 242.
5. Remove the wheel with the flat tire and then
install the
spare tire ¢page 243.
6. Tighten all whee l bolts lightly .

Emergency assistance
"' Screw the threade d end of the alignment pin
from the tool kit hand-tight into the empty bolt
ho le ¢
fig . 204 .
"'Then remove the other wheel bolts as described
above.
"' Take off the wheel leav ing the a lignment pin in
the bol t ho le ¢ (D .
Putting on the spare tire
"'all road : Inf late the inflatable spare tire
¢ page239
"'Push the spare tire over the alig nment pin .
"' Screw on the wheel bo lts and tighten them
slightly using the hexagonal socke t.
"' Remove the a lignment pin and inse rt and tig ht­
en the rema ining whee l bol t slightly like the
r e st .
"'T urn the jack handle counte r-clo ckwise to lower
the ve hicl e until the jack is fully re leased .
"' Use the whee l bolt wrench to tighten all whee l
bo lts firmly ¢
page 242. Tighten them in a
crisscross pattern,
from one bolt to the (ap­
prox imately) opposite one, to keep the wheel
cente red .
"' Perform the steps req uired afte r changing th e
whee l¢
page 241, After changing a whe el.
The hexago nal soc ket makes it eas ier to remove
the wheel bolts from t he rim . Care shou ld be tak­
e n when remov ing t he revers ible b lade .
([) Note
When removi ng or installing the wh ee l, the
r im cou ld hit the brake ro tor and damage th e
rotor . Work ca refull y and have a secon d per­
so n t o help yo u.
@ Tips
- W hen mounting tir es w ith unidirectional
tread design
mak e sure th e tread pa ttern is
p oin te d t he r igh t way ¢
page 2 44.
-The w heel bol ts should b e cle an an d easy to
t urn. Check for d irt and cor ros io n on the
m at ing s urf ac es o f both t he whee l and the
hu b. Rem ove a ll di rt from th ese sur fac es b e­
f o re remo untin g t he wheel.
244
- Do not use the hexagonal socke t in the
sc rewdrive r hand le to loose n or tig hten the
wheel bol ts .
Tires with unidirectional tread design
Tires with unidirectional tread design must be
mounted with their tread pattern pointed in the
right direction.
Using a spare tire with a tread pattern
intended for use in a specific direction
When using a spare tire w ith a t read pattern in­
tended for use in a specif ic direction, please note
the following:
- The direction of rotation is marked by an
arrow
on the side of the tire.
- If the spare tire has to be inst alled in the inco r­
rect direction, use the spare tire on ly tempora ­
r il y since the tire will not be a ble to ac hieve its
optimum performance characterist ics with re­
gard to aquaplan ing, no ise and wear.
- We recommend that you pay part icu lar atten­
tion to th is fact d uring wet weather and that
you adjust your speed to matc h road condi­
tions .
- Rep lace the flat tire w ith a new one and have it
installed o n your veh icle as soon as possib le to
restore the hand ling advan tages of a un id irec­
t ional tire.
Notes on wheel changing
Please re ad th e inf ormati on ¢ page 224, New
t ires or w heels
if yo u are going to use a sp are tire
which is d iffe rent from the t ires on your ve hicle.
Af ter yo u cha nge a tire :
-Check the tire pressure on the spare immedi­
ately after installation .
- Have the wheel bolt t ightening torque
checked with a torque wrench as soon as pos­
sible by your authorized Audi dealer or quali­
fied workshop.
- With steel and alloy wheel rims, the wheel
bolts are correctly tightened at a torque of 90
ft lb s. (120 Nm). ..,_

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Fuse panel @ (black)
No . Consumer
1 Dynamic steering
2 Electronic Stabilization Cont rol (mod ule)
A/C system press ure sensor, elect rome -
chan ica l park ing brake , Homelink, auto-
3 mat
ic dimming interior rear v iew mirror,
air q uality/outside a ir sensor, Electronic
Stabili zation Cont rol (button)
5 Sound actuator
6 Headlight range control/
headlight (cor-
ne ring light)
7 Headlight (corner ing light)
Con trol modules (e lectrom echan ica l par k-
8 ing brake , s hock ab so rbe r, q uattro s port),
DCDC converter
9 Adapt ive cru ise control
1 0 Shift ga te/clu tch se nsor
1 1 Side assist
12 Headlight range control
, p arkin g sys tem
13 Airbag
14 Rear wiper (a
llroad)
1 5 Auxiliary fuse (instrument panel)
1 6 Auxiliary fuse terminal 15 (engine area
)
Fuse panel@ (brown)
No . Consumer
2 Brake light senso r
3 Fuel pump
4 Clutch sensor
5
Left seat heating w it h /w it h out seat venti-
l a tion
6 Electronic Stabili zation Cont rol (e lectr ic)
7 Ho rn
8
F ront left door (window regulator, central
locki ng, mirror, switch, lig hting)
9 Windshield wiper moto r
10 Electronic Stabilization Cont rol (va lves)
Fuses and bulbs
No . Consumer
Two-door mode ls: rear left w indow reg ula-
1 1 tor; Four-door mode
ls: rear left door (w in-
dow regu lator, central locking, switch,
li ght ing)
1 2 Rain and
light sensor
Fuse panel © (red)
No . Consumer
3 Lumbar support
4 Dynam ic steering
5 Inter
io r ligh ting ( Cabr io let)
6 W
indshie ld washer system, headlight
wash er system
7 Vehicle e lectrica l system control module 1
8 Ve hicl e e lec trica l sy stem con trol module 1
9
Left rear window regu lator motor (Cabr io-
l et)/s unroof
1 0 Vehicle e lec tric al system con trol module 1
1 1 R
ight rear window regulator (Cabriolet)/
su n shade motor
1 2 A
nti- theft alarm warning system
Right cockpit fuse assignment
Fig. 20 7 Rig h t cockp it : f use pane l wit h plast ic cl ip
247

Fuses and bulbs
Fuse panel @ (black )
No. Consume r
5 Steering column switch module
7 Term inal 15 diagnostic connec to r
8 Gateway (Databus diagnostic interface)
9 S upplementary heater
Fuse panel @ (brown)
No. Consumer
1 C D/D VD p laye r
2 Wi-Fi
3 M MI/Radio
4 Instrument cluster
5
Ga teway (instrument cluster cont rol mod -
ule)
6 Ignition lock
7 Ligh t swi tch
8 Climate control system blower
9 Steering col umn lock
10 Climate control system
1 1 Te
rm inal 30 diagnos tic connec to r
12 Steer ing column sw itch module
248
Right luggage compartment fuse
assignment
Fig. 2 08 Right lu ggage compartment: fuse panel wit h
plast ic cl ip
Fuse panel @ (black)
No . Consumer
2 Rear wi ndow heater (Cabriolet)
3 Power top latch (Cabr io let)
4 P ower top hyd raulics (Cabr io let)
Fuse panel @ (black)
No . Consumer
Luggage compartment lid cont rol mo dule
1 ( allroad)/ Power top cont rol mod ule (Ca b-
r iolet)
2 Retractable rear
spoiler
(RS 5 Coupe)
5 E
lec tromec hanical p arking brake
6 Electronic damping contro l
7 Elec tromec hanical pa rking brake
8 Rear exte rior light ing
9 q uattro sport
10 Rear exterior lighting
1 1 Cent
ral locking
12 Terminal 30
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0 ::..:: co ..... ..... Fuse panel© (brown)
No . Consumer
1 Luggage compartment lid control module
(allroad)
2 12-volt socket, cigarette lighter
3 DCDC converter path 1
4 DCDC converter path 2, sound amplifier,
radio
6 Right upper cabin heating (Cabriolet)
7 Elect romechan ical park ing brake
9
Right front door (window regulator, cen-
tral locking, m irror, switch, lighting)
10 Left
upper cabin heating (Cabriolet)
Two-door models: rear r ight window regu-
11 lator; Four-door models:
rear right door
(w indow regulator, central locking, switch,
lighting)
12 Cell phone prep
Fuse panel ® (black )
No . Consumer
1 Right front seat
heating
4 MMI
5 Radio
6 Rear view camera
7 Rear window heater (allroad)
8 Rear Seat Entertainment
Bulbs
Replacing bulbs
For your safety, we recommend that you have
your authorized Audi dealer replace any bulbs for
you .
It is becoming increasingly more and more diffi­
cult to replace vehicle light bulbs since in many
cases, other parts of the car must first be re­
moved before you are able to get to the bu lb.
This applies especially to the light bulbs in the
front of your car which you can only reach
through the eng ine compartment.
Sheet metal and bulb ho lders can have sharp
edges that can cause serious cuts, parts must be
Fuses and bulbs
correctly taken apart and then properly put back
together to help prevent breakage of parts and
long term damage from water that can enter
hous ings that have not been properly resealed.
For your sa fety, we recommend that you have
your authorized Audi dea ler replace any bulbs for
you, since your dealer has the proper tools, the
correct bulbs and the expertise.
Gas discharge lamps (Xenon lights)*:
Due to the high e lectr ica l voltage, have the bulbs
replaced by a qualified technician. Headlights
with Xenon light are identified by the high volt­
age sticker .
A WARNING
Changing Xenon lamps without the necessary
equipment can cause serious personal injury.
- Bulbs are pressurized and can explode when
being changed . Potential risk of injury!
- On vehicles equipped with gas discharge
bu lbs (Xenon light)* life-threatening injuries
can resu lt from improper handling of the
high -vo ltage portions of such lamps!
- Only your authorized Audi dealer or quali­
fied workshop shou ld change the bulbs in
gas discharge lamps. There are parts w ith
sharp edges on the openings and on the bulb holders that can cause serious cuts . If
you are uncerta in about what to do, have
the wor k performed by an authorized Audi
dealer or qualified workshop. Serious per­
sonal injury may result from improperly per­
formed work.
(D Tips
- If you st ill prefer to replace the light bulbs
yourself, be awa re that the engine compa rt­
ment is a hazardous area to work
inq page 203 q &,.
- It is best to ask your authorized Audi dealer
whenever you want to change a bulb.
249

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When jump starting or charging the battery,
never connect the negative ground cable to
the battery negative post because the battery
manager system must be able to detect the
battery's state of charge. Always connect the
negative ground cable to the negat ive ground
post of the battery manager control unit .
Use of jumper cables
Make sure to connect the jumper cable clamps in
exactly the order described below!
Fig. 209 Engine compartment: Connectors for jumper ca­
bles an d charger
Fig. 210 Jump starting w ith the battery of another vehicle :
@ booster battery, ® discharged vehicle battery
The procedure described be low for connecting
jumper cables is intended to provide a jump start
for your vehicle.
Vehicle with discharged battery:
.. Turn off lights and accessories, move lever of
automatic transmission to N (Neutral) or P
(Park) and set parking brake .
Connect POSITIVE(+) to POSITIVE(+) (red)
.,. Remove the cover above the jump start connec­
t ion .
.,. Open th e cover on the positive pole
¢ fig. 209 .
Emergency situations
1. Connect one end of the red positive cab le on
the
jump start bolt¢ fig. 210 (D (Bolts un­
der cover= "positive") of the vehicle to be
started @.
2. Connect the other end to the positive termi-
nal @of the booster battery @.
Connect NEGATIVE (-) to NEGATIVE (- )
(black)
3. Connect one end of the black negative cable
to the negative terminal @ of the booster
battery @.
4. Connect the other end to the
jump start bolt
@(Bolts with hex head= "negative ") of the
vehicle to be started @.
Starting the engine
.. Start the engine of the vehicle with the booster
battery @. Run the eng ine at a moderate
speed .
.,. Start engine w ith discharged vehicle battery @
in the usual manner.
.,. If the engine fails to start: do not keep the
starter cranking for longer than 10 seconds.
Wait for about 30 seconds and then try again .
.. With engine running, remove jumper cables
from both vehicles in the exact
reverse order .
.. Close the cover on the positive pole.
The battery is vented to the outside to prevent
gases from entering the vehicle interior . Make
sure that the jumper clamps are well connected
with their
metal parts in full contact with the
battery term inals .
A WARNING
To avoid ser ious personal injury and damage
to the vehicle, heed all warnings and instruc­
tions of the jumper cable manufacturer.
If in
doubt, call for road service.
- Jumper cables must be long enough so that
the vehicles do not touch .
- When connecting jumper cables, make s ure
that they cannot get caug ht in any moving
parts in the engine compartment.
- Do not bend over the batteries -danger of
chemical bu rns!
251