2014 AUDI A7 light

238 Checking and filling
@ For the sake of the environment
Because of the problem of proper disposal
of brake fluid as we ll as the special tools
required and the necessary expertise, we recommend that you have the brake fluid
changed by your author ized Audi dealer.
Battery
General information
Under normal operating conditions, the bat­
tery in your Audi does not need any mainte­
nance. With
high outside temperatures or
long daily drives we recommend that you have
the electro lyte level checked by a service fa­
cility . The electrolyte level should also be
checked each time the battery is charged
<=:> page 240.
Have the battery checked when you take your
vehicle in for service . You are well adv ised to
replace a battery that is older than 5 years .
With certain types of airbag deployment, the battery is disconnected from the vehicle elec­
tr ical system for safety reasons
c::> & in Re­
pair, care and disposal of the airbags on
page 165.
Disconnecting the battery terminals
Some vehicle functions (power window regu­
lators, for example) are lost if the battery ter­
minals are disconnected. These functions have
to be relearned after the battery terminals are
connected again. To prevent this , the battery
should only be disconnected from the vehicle
e lectrica l system when absolutely necessary
for repairs.
Vehicles not driven for long periods
If you do not drive your vehicle over a period
of severa l days or weeks, electrical compo­
nents are gradually cut back or switched off.
This reduces energy consumption and main­
tains starting capability over a longer period
c::> page 202. Some of the convenience func­
tions may not operate, such as the interior
lights or power seat adjustment. The conven- ience
functions will be available again when
you switch on the ignition and start the en­ gine.
Winter operation
During the winter months, battery capac ity
tends to decrease as temperatures drop. This
is because more power is a lso consumed whi le
starting, and the headlights, rear window de­
fogger, etc., are used more often.
Avoid unnecessary power consumption, par­
ticularly in city traffic or when traveling only
short distances. Let your authorized Audi
deale r check the capacity of the vehicle bat ­
tery before winter sets in
c::> page 240 . A well
charged battery will no t only prevent star ting
problems when the weather is cold, but will
also last longer .
@ Tips
If your vehicle is left standing for several
weeks at extremely low temperatures, the
vehicle battery should be removed and
stored where it w ill not freeze. This will
prevent it from be ing damaged and having
to be replaced .
Working on the battery
Be especially careful when working on or near
the battery.
The battery is located in the luggage compart­
ment under the floor . Before you check any­
thing in the luggage compartment,
read and
heed all WARNINGS
c::> .&,.
Always heed the safety warnings , when work­
ing on the vehicle battery or the vehicle elec­
trical system to prevent injury.
The following WARNINGS are very
important when working on the battery:
Always heed the following WARNING SYM-
BOLS and safety precautions when working
on the battery.
®
Always wear eye protection.

&
Batt ery acid contain s sulfuric acid.
Alw ay s w ea r g lov es and eye protec -
t io n.
@
No
-spa rk s
- flam es
- sm oking .
~
When a b atte ry is ch arged , it p rodu -
ce s hy d roge n ga s wh ich i s exp losi ve
a nd could cause pe rso nal injur y.
®
Alw ay s keep the b atter y well out of
rea ch of children.
A WARNING
Whenever working on the battery or on
the electrical system, there is the r isk of
injury, acc ident and even fire. Read and
heed the following WARNINGS:
- Always wear eye protection. Do not let
battery acid or any lead particles get on
yo ur sk in or cloth ing . Sh ield your eyes.
Explosive gases can cause blindness or
other injury.
- Battery acid contains sulfuric acid . Sulfu­
ric acid can cause blindness and severe
burns.
- Always wear gloves and eye p rotection.
Do not tilt the battery because ac id
could leak out of the vent ilation open­
ings.
- If you get battery acid in your eyes or
on your sk in, immed iately r inse with
cold water for severa l m inutes and get
medical attention .
- If you should ingest any battery acid,
seek med ical attention immediately.
- Do not expose the battery to an open
flame, electric sparks or an open light.
- Do not smoke.
- Do not interchange the positive and neg-
ative cab les.
- When working on the battery, be sure
not to short-c ircuit the terminals with
tools or other metal objects. This would cause the battery to heat up very quickly,
wh ich could lead to damage or explosion
and personal in jury.
Checkin g and fillin g
-When a battery is charged, it produces
hydrogen gas which is explos ive and
could cause personal injury.
- Always keep the battery well out of the
reach of children.
- Before work is done on the elect rical sys­
tem, disconnect the negative ground ca­ ble.
- Before performing any work on the e lec­
trical system, switch off the eng ine and
ignit ion as well as any electrical equip­
ment . The negative cable on the battery
must be disconnected. If yo u are just go­
ing to replace a light bulb, then it is
enough to switc h off the lights.
- Before disconnecting the battery, switch
off the anti-theft alarm system! Other­
wise you wi ll set off the alarm.
- When disconnecting the battery, first
disconnect the negat ive cab le and then
the posit ive cab le.
- Before reconnecting the batte ry, ma ke
sure all e lectr ica l consumers are sw itch ­
ed off . Reconnect the pos it ive cable first
and then the negative cable. Neve r inter ­
change the cables - this could start a fire!
- Never cha rge a frozen or a thawed-out
battery.
It could exp lode! If a battery has
frozen, then it must be replaced . A dis­
charged battery can freeze over at 32
°F
(0 oc).
- Make sure the vent hose is always attach­
ed to the opening on the side of the bat­
tery.
- Never use batteries which are damaged.
There is the danger of an explosion! A l­
ways rep lace a damaged battery.
A WARNING
Ca lifornia Proposition 65 Warning:
- Battery posts, terminals and related ac­
cessories conta in lead and lead com­
pounds, chemicals known to the State of
Ca lifornia to cause cance r and reproduc­
tive problems. Wash hands after han- dling.
~
239
•
•

cracked and weakened when the battery
froze.
- Charge the battery in a well ventilated
area. Keep away from open flame or elec­
trical spark. Do not smoke. Hydrogen gas
generated by the battery is explosive.
- To reduce the danger of explosion, never
connect or disconnect charger cables
while the charger is operating.
- Fast charging a battery is dangerous and
should only be attempted by a compe­
tent technician with the proper equip ­
ment .
- Battery acid that may spill during charg­
ing should be washed off with a solution
of warm water and baking soda to neu­
tralize the acid.
0 Note
Never use a fast charger as a booster to
start the engine . This will seriously dam ­
age sensitive electronic components, such
as control units, relays, radio, etc., as well
as the battery charger.
Battery replacement
The new battery must have the same specifi­
cations and dimensions as the original equip­
ment battery.
Intelligent energy management in your vehi­
cle is responsible for distributing the electri­
cal energy throughout your vehicle
q page 202. The intelligent energy manage­
ment system will keep the engine battery
charged better than vehicles without this sys­
tem. To make sure the additional electrical en­
ergy is available once again after you have
changed the battery, we recommend that you install batteries of the same type and manu ­
facture only (the same as those installed at
the time your vehicle was delivered). Specifi­
cations are listed on the battery housing. Your
authorized dealer must code the battery in
the energy management system to enable you
to use the energy management functions cor­ rectly after replacing the battery.
Checking and filling 241
The new battery must have the same capacity,
voltage (12-volts), amperage, construction and plug sealing.
When installing the battery, make sure the ig ­
nition and all electrical consumers are switch­
ed off.
(D Note
Make sure the ventilation hose on the side
of the battery is connected, otherwise
fumes or battery acid can leak out.
- Vehicles with the Start-Stop-System* are
equipped with a special cycle-proof AGM
battery. Installing a different type of
battery can cause problems in the vehi­
cle electrical system. When replacing the
vehicle battery, always install one with
the same specifications as the original
battery.
@ For the sake of the environment
Because of the problem of proper disposal
of a battery, we recommend your author­
ized Audi dealer change the battery for
you. Batteries contain sulfuric acid and lead and must always be disposed of prop­
erly in compliance with all environmental
regulations. Disposing of vehicle batteries
improperly is very dangerous to the envi­
ronment.
Windshield/headlight
washer container
Fig. 199 E ng in e compar tment: cov er on th e w in ds hield
and headl ig ht* washer fluid reservoir
II-
•
•

250 Tire s and wheel s
used today are underinflated just by looking
at them.
Therefore, be sure to check tire pressures at least once a month and always before going
on a long tr ip. Make sure to take the number
of people and the amount of luggage into ac­
count when adjusting tire pressure for a trip -
even one that you would not consider to be
"long." See
c> page 251, Tires and vehicle
load limits
for more important information .
Always use an accurate tire pressure gauge
when checking and adjusting inflation pres­
sures . Check all of the t ires and be sure not to
forget the spare tire . If the pressure in any tire
i s too high when the tire is "cold," let air out
of the tire slowly with the edge of the tire
gauge and keep checking the pressure unt il
you reach the pressu re that is correct for the
l oad (passengers and luggage) and kind of
driving you plan to do.
I f the p ress ure in any tire is too low, note the
d ifference between the pressure in the cold
tire and the pressure you need and add the a ir
that you need to reach the correct pressure for
the vehicle load (passengers and luggage) for
the tires on your veh icle as listed on the on
you r veh icle and in this manual and the k ind
of dr iving you plan to do.
Ne ver e xceed the m aximum inflation pre s­
su re li sted on the ti re sidewall for an y rea ­
son.
Remember that the vehicle manufacturer, not
the tire manufacturer, determines the correct
tire p ressure fo r the t ires on your vehicle .
It is important to check the tire pressu re when
the tires are cold.
- Read the requ ired t ire p ress ure from the tire
pressure label. The ti re pressu re labe l is lo ­
cated on the drive r's side 8-pi llar.
- T urn the valve stem cap counter- clockwise
to remove i t from the tire valve.
- Place the air pressu re gauge on the valve .
- The tire pressures should only be checked
and adjusted when the tires a re cold . The slightly raised pressures of warm tires must
not be reduced.
- Adjust the tire pressure to the load you are
carrying.
- Reins tall the valve stem cap on the va lve.
When sh ould I check the tire pressure?
The correct tire pressure is especially impor­
tant at h igh speeds. The pressure should
the refore be checked at least once a mo nth
and always before starting a jo urney. Do not
f orget to c heck the ti re p ress ure fo r the spare
whee l
i=;,poge 265.
When should I adjust the tire pressures?
Adjust the tire pressure to the load you are
ca rrying. After changing a whee l
or replaci ng
whee ls yo u have to adj ust the ti re press ures
on all whee ls. In addition, you m ust then
store the new tire pressures in the tire pres­
s u re monito ring system*
c> page 261.
A WARNING ~
Incorrect tire pressures and/or underinfla-
tion can lead sudden tire fa ilure, loss of
control, collision, serious personal injury
or even death.
- When the warn ing symbol
RI] appears in
the instrument cluster, stop and inspect
the t ires.
- Incorrect tire pressure and/or underinfla­
tion can cause increased tire wear and can affect the handling of the vehicle and
stopping ability .
- Inco rrect tire pressures and/or underin­
flation can a lso lead to sudden t ire fail­
ure, including a blowou t and sudden de­
flation, ca us ing loss of veh icle cont ro l.
- The drive r is responsible for the co rrect
tire pressures for all tires on the veh icle.
T he applicable pressure values are loca t­
ed on a sticke r on the dr iver's s ide 8-pil­
lar .
- On ly when all tires on the vehicle are fil­
led to the correct pressu re, the t ire pres ­
sure monitoring* system can work cor­ rectly.

262 Tires and wheels
remain continuously illuminated. This se­
quence will continue upon subsequent vehicle
start-ups as long as the malfunction exists.
When the malfunction indicator is ill uminat­
ed, the system may not be able to detect or
signal low tire pressure as intended . TPMS
malfunctions may occur for a variety of rea­
sons , including the installat ion of replace­
ment or alternate tires or wheels on the vehi­
cle that prevent the TPMS from funct ioning
properly . Always check the TPMS malfunction
tellta le after replacing one or more t ires or
wheels on your veh icle to ensure that the re­
placement or alternate tires and wheels allow
the TPMS to continue to function properly.
Tire pressure indicator appears
Applies to vehicles: with tire pressure monitoring system
The tire pressure indi cator in the instrument
cluster informs you if the tire pressure is too
low or if there is a system malfunction.
Fig. 205 Display: underi nflatio n warn ing
Fig. 206 Display: System mal functio n
Using the ABS sensors, the tire pressure moni­
toring system compares the t ire tread circum­
ference and vibration characteris tics of the in­
dividual tires. If the pressure decreases in one
or more tires, this is indicated in the i nstru- ment
cluster with a warning symbol
RE and a
message
c:> fig. 205 .
The tire pressure monitoring system must be
reset via MMI each time the p ress ures are ad­
justed (e.g . when switching between partial
and full load pressure) or after changing or re­
plac ing a tire on your vehicle
c:> page 263 . The
TPMS indicator only monitors the tire pres­
sure that you have previously stored. You can
find the recommended tire pressures for your
vehicle on the Label on dr iver's side 8-pillar
<=:>page 247 .
Tire tread circumference and vibrat ion charac­
teristics can change and cause a tire pressure
wa rning if:
- the t ire pressure in one or more tires is too
low,
- the tire has structural damage,
- the tire pressure was changed, wheels rotat -
ed or replaced but the TPMS was not reset
<=:> page 263.
Warning symbols
RE Lo ss of pressure in at least one tire c:> .&..
Check the tire or tires and replace or repair if
necessary. The indicator light
RE in the instru­
ment cluster also illuminates
c:> page 12 .
Check/correct the pressures of all four tires
and reset TPMS via MMI.
film (T ire Pressure Monitor ing System) Tire
pressure! System malfunction .
If film appears after switching the ignition on
or while dr iving
c:> fig. 206 and the indicator
light
[ti] in the instrument cluster blinks for
approximately one minute and then stays on,
there is a system malfunction .
Attempt to store the correct tire pressu re
<=:> page 263 . If the indicator light does not
turn off or if it turns on shortly thereafter, im­
mediately drive your vehicle to an author ized
Audi dealer or authorized repair facility to
have the malfunct ion corrected .

266 What do I do now?
Changing a wheel
Before changing a wheel
Observe the following precautions for your
own and your passenger's safety when chang ­
ing 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 o ,&.
... All passengers should leave the car and
move to a safe location (for instance, behind
the guardrail)
o A-
.. Engage the parking brake to prevent your
vehicle from rolling unintentionally
o ,&.
... Move selector lever to position Po ,& .
• If you are towing a trailer, unhitch the trailer
from your vehicle .
... Take the
jack and the spare tire out of the
luggage compartment
o page 264,
o page265.
A WARNING
You or your passengers could be injured
while changing a wheel if you do not fol­
low these safety precautions:
- If you have a flat tire,
move a safe dis­
tance off the road. Turn off the engine,
turn the emergency flashers on and use
other warning devices to alert other mo­
torists.
- 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
sudden ly and possibly slipping off the
jack, always fully set the parking brake
and block the wheel diagonally opposite
the wheel being changed . When one
front wheel is lifted off the ground, plac­
ing the Automatic Transmission in P
(Park) will
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
opage 136.
@ Tips
Before changing the whee l, you must acti­
vate the jacking mode, so that the auto­
matic controls for the Adaptive Air Sus­
pension* do not make it more difficult to
lift the vehicle with the jack
o page 268 .
Changing a wheel
When you change a wheel, follow these­
quence described below step-by-step and in
exactly that order.
l. Activate the vehicle jack mode*
opage 268 .
2. Remove the decorative wheel cover* . For
more details see also
o page 267, Deco­
rative wheel covers
or o page 267,
Wheels with wheel bolt caps.
3. Loosen the wheel bolts o page 268.
4. Locate the proper mounting point for the
jack and align the jack below that point
opage 268.
5. Raise the car with the jack o page 268.
6. Remove the wheel with the flat tire and
then install
the spare opage 270.
7. Tighten all wheel bolts lightly .
8.
Lower the vehicle with the jack .
9 . Use the wheel bolt w rench and
firmly
tighten all wheel bolts o page 268.
10. Replace the decorative wheel cover*.
11. Deactivate the vehicle jack mode * in the
MMI:
I CARI function button > (Ca r)* sys­
tems
control button > Servicing & checks
> Air susp.: jack mode > Off.
The vehicle jack mode* switches off automati­
ca lly at speeds above 6 mph (10 km/h) .
A WARNING ,-
Always read and follow all WARNINGS and
in format ion
o .&. in Raising the vehicle on
page 269
and opage 271.

2 70 What do I do now ?
Taking the wheel off/installing the spare
Follow these instructions step-by-step for
changing the wheel.
Fig. 216 Changing a whee l: u sing the screwdriver han­
dle (w ith th e blade removed} to turn the bolts
Fig. 2 17 Changing a w hee l: a lignm en t pi n ins ide t he
top hole
Afte r you have loosened a ll wheel bolts and
r a ised the veh icle off the ground, remove a nd
replace the wheel as follows:
Removing the wheel
.. Use the hexagonal soc ket in th e screwdriv­
er handl e
to complete ly remove the top­
most wheel bo lt and set it as ide on a
clean
s ur face qfig. 216 .
.. Screw the threaded end o f the alignment
pin
from the tool k it hand -tight into the
empty bolt hole
q fig. 217.
.. Then remove the other wheel bo lts as de­
scribed above .
.. Take off the wheel leav ing the alignment pin
in the bolt hole
c:> (D .
Putting on the spare whe el
.. Lift the spare wheel and ca refully slide it
over the a lignment pin to guide it in place
c:> Q).
.. Use the hexagonal socket in the screwdriver
handle to screw in and tighten all whee l
bolts
slightly.
.. Remove the a lignment pi n and insert and
tighten the remaining wheel bolt slightly
like the rest .
.. Tu rn the jack hand le counter-clockwise to
lower the veh icle until the jack is fully re­
leased .
.. Use the wheel bo lt wrench to tighten all
wheel bo lts f irm ly
q page 268 . Tighten
them
crosswise, from one bolt to the (ap ­
proximately) opposite one, to keep the
wheel centered.
(D Note
When remov ing or installing the whee l,
the rim cou ld hit the b rake roto r and dam­
age the roto r. Work carefu lly and have a
second person help you .
(D Tips
Never use the hexagonal socket in the han­
d le of the screwdriver to loosen or tighten
the wheel bolts.
- Pull the reversible blade from the screw ­
dr iver before you use the hexagonal
socket in the hand le to turn the w heel
bolts .
- When mount ing tires w ith
unidirectional
tread design
make sure the tread pat­
t er n is po inted t he righ t way
~page 271.
-The wheel bolts shou ld be clean and easy
t o t urn . Check for dirt an d co rrosion on
the mat ing surfaces of both the w heel
an d t he hub . Remove all d irt from these
s urfa ce s be for e remou nting the whee l.

No. Equ ipment Amps
4 Suspension control system sen-s sor
s
E
lectronic Stabilization Cont rol
s (ESC) module
6 Climate control
s
7 Adaptive cruise control
10
8
Airbag control module, front
s passenger's seat sensor system
9 Gateway
s
Homelink (garage door opener),
10 night vis ion system cont ro l
s
module
11 Image
processing (active lane
10
ass ist, adaptive cruise control)
12 Dynamic steering
s
13 Terminal 15 in
the instrument
15
panel
14 Terminal 15
in the luggage com-
partment 30
15 Terminal 15
(engine)
15
16 Starter 40
Fu se pa nel ® (b rown )
No . Equipment Amps
1 Gateway s
2 C
limate control 10
3 E
lectronic Stabili zation Control
10
(ESC) module
4 Fron
t door (driver 's side)
30
s
Power seat adjustment (driver's
7,5
seat)
6 Dynam
ic steering
35
7 Sunroof 20
8
Rear door control module (driv-
15
er 's side)
9 Lumbar support (
Front passen-
s ger seat)
10 Tire pressure
monitoring system
s
11 Su
nroof, rear spoi ler (Sportba ck)
20
12 Driver
door control module
15
Fuse s and bulb s 2 7 3
Fuse pan el© (r e d )
No . Equipment
2 Fuel pump
3 Brake light
sensor/brake pedal
sensor system
AdBlue control module (Diesel)/
4 Engine acoust ics
s Left rear door cont rol modu le
6 Power seat adjustment
(pas-
senge r's seat)
7 Horn
8 Windshield wiper motor
9 Light/rain sensor, heater
for vid-
eo camera in windscreen
10 Lumba r support (driver seat)
11 Front
passenger door control
modu le
12 Right rea r door cont rol modu le
Front passenger side cockpit fuse
assignment Amp
s
25
S/S
S/7,S 30
7,5 15
30
s
s
15
15
F ig . 22 0 Front passenger side cockpit: fuse pa nel w it h
plast ic brac ket
Fuse panel @ (bla ck)
No . Equipment Amps
1 Head-up
Display s
2 MMI Display s
3 CD/DVD changer s
4 MMI unit/drives 7,5
s
Chip card reader (not in all coun-
s tries)
6 Instrument
cluster
s
7 Steering column switch module s ...