lock AUDI A7 2015 Repair Manual

220 Fuel supply and filling your fuel tank
Refuelling procedure
.. Inse rt the fue l nozzle from the gasoline
pump into the fue l filler neck as far as it will
go.
.. Se lect a medium refuelling rate so that the
no zzle switches off automatica lly when the
tank is full.
Putting the fuel cap back on
.. After filling your tank, twist the fuel fi ller
cap clockwise as far as it will go.
.. Close the fuel filler flap.
To avoid fuel spi lling or evaporating from the
fuel tank always close fuel fi ller cap properly
and completely. An improperly closed fuel fill­
er cap may a lso cause the MIL lamp
q poge 29
to come on.
A WARNING
Improper refueling or handling of fue l can
cause fire, explosion and severe burns .
- Fuel is highly flammable and can cause
severe burns and other injuries.
- Failure to shut the engine off while refu­
eling and/or to insert the pump nozzle
fully into the fuel filler neck could cause
fuel to spray out of filler neck or to over­
flow. Fuel spray and overflow ing fuel can
c ause a fi re.
- Never use a cellular telephone wh ile re­
fueling. The electromagnetic radiation
can cause sparks that can ign ite fue l va­
pors and cause a fire.
- Never get back into you r vehicle while re­
fueling. If in exceptiona l circumstances
yo u must get back in your vehicle whi le
refue ling, make certain that you close
the door and touch metal to discharge
static electricity before touching the fill­
er nozzle again. Static electricity can
cause sparks that can ignite fuel vapors
released during refueling.
- Never smoke or have an open flame any­
where in or near your vehicle when refu ­
eling or filling a portable fuel container .
- For your safety, we strongly recommend
that you do not travel w ith a portable fuel container in your vehicle. The con­
tainer, full or empty may leak and could
cause a fire, especially in a crash.
- If, under exceptional circumstances, you
must transport a portable fuel container,
please observe the following:
- Never fill a portable fuel container
whi le it is anywhere in or on the vehicle
(for example, in the luggage compa rt­
ment, or on the trunk) . Static electrici­
ty can build up while filling and can ig­
nite fuel vapors causing a fire.
- Always place a portab le fue l container
on the ground before fi lling.
- Always keep the filler nozzle complete­
ly inside the portab le container before
and during filling.
- If filling a portab le container made of
metal, the f iller nozzle must always be
in contact with the container. This will
help prevent static electricity from d is­
c harging and cause a fire.
- Never spill fuel inside the vehicle or
luggage compartment. Fuel vapors are
highly flammable .
- Always observe local and state/provin­
cial laws regarding the use, storage
and transportation of fuel containers .
- Make certain the fuel container meets
industry standards (ANSI/ ASTM
F852 -86) .
(D Note
If any fuel has spilled onto the car, it
should be removed immediately to prevent
damage to the paint .
@) For the sake of the environment
As soon as the correctly operated no zzle
switches off automatically for the first
time, the tank is full. Do not try to add
more fuel because fuel may spill out . In
addition, the expansion space in the fuel
tank will be filled -causing the fuel to
overflow when it becomes warm and pol­
l ute the environment .

M N <( I.J ' "' rl
"' rl
(D Tips
-Running yo ur engine while refuelling
may cause vapors to escape or even
cause fue l to spill out of the tank. This
would then shut off the fuel nozzle be­
fore the tank is full.
- Do not refuel your veh icle w ith the igni­
tion switched on . The fuel gauge may
otherwise not indicate the correct fuel
level afte r refuelling.
- Diesel veh icles * are equipped w ith a die­
se l m isf ueling protector. It allows the
vehicle to be f ueled on ly w ith a diesel
fuel pump nozzle . A wo rn o r damaged
no zzle or a nozz le tha t is too small may
no t be able to open the d iesel misfueling
protector. If this is the case, try turning
the nozz le before inserting it in the fue l
filler neck, use a different fuel p ump or
see your authorized Audi dealer or au­
thorized repa ir facility for assistance.
- The fuel filler flap of your vehicle is not locked when you lock the vehicle from
the i nside.
Fuel filler flap emergency release
You con open the fuel filler flop by hand if the
power locking system should fail.
Fi g. 18 6 Luggage compa rtme nt: open ing t he s ide t rim
Fu el suppl y and filli ng your fuel t ank 221
N
N
0
0
di
Fig . 1 8 7 Right s ide tr im pane l in t he luggage com part ·
men t: emerge ncy re lease m echan is m
Opening the sid e trim
.,. To remove the right side t rim, first remove
the retainer from the mounts ¢
fig. 186.
.. Tu rn both lock ing mechanisms 90° to the
left using a coin or a similar object and re­
move the locking mechanisms .
.. Tilt t he retainer upward and pull the trim
out. Lay the trim down o n its s ide, beca use
there is an e lectr ica l w ire on the back.
Fuel filler door em ergency release
The emergency release mechanism is located
behind the right side trim panel in the lug­
gage compartment .
.. Loosen the loop
<=> fig. 187from th e retainer
and then pull on the loop carefully
<=> CD .
.. Press on the left side of the fue l filler door
to open
<=>page 219, fig. 184.
(D Note
Only p ull on the loop until yo u feel resist­
ance. You w ill not hea r it release. Other­
wise you could damage the eme rgency re­
l ease mechanism.
Selective catalytic
reduction
General information
App lies to vehicles: wit h diesel engine
On vehicles with se lective cata lytic reduct ion,
an urea solution (AdB lue) is injected into the
exhaust system before a nitrogen ox ide cata­
lytic co nve rter to reduce nitrogen emissions. ..,

This message appears if the system detects it
was filled incorrectly. Drive immediate ly to
the nearest qualified workshop to have the malfunct ion repaired. Otherwise you will not
be able to start the engine aga in once you
stop it.
Filling AdBlue
Ap plies to vehicles: with diesel e ng in e
A special refill bottle must be used to fill the
AdBlue.
Fi g. 189 Right rea r veh icle s ide: re m ov ing the Ad Blue
cap
Fig. 190 Ad Bl ue fitter t ube: insert ing the refill bott le
The Ad Blue f iller tube is located near the die­
se l filler t ube. A lways add 1.5 gallons (5 .7 lit­
ers) of AdBlue (three bottles). This is the m ini­
mum amount required to ensure the system
detects the refilling and to start the eng ine.
The Ad Blue tank capacity is approximately
4.5 gal lons ( 17 lite rs).
Opening the filler tube and adding
AdBlue
Requirement: The request to add Ad B lue must
"' appear in the inst rument cluste r display.
N <(
~ • Switch the ignition off.
:0 • Open the tank cover r=>page 219.
"' ,....,
"' ,....,
Fuel suppl y and filli ng your fuel t ank 223
• Tur n the cap co unterclockwise with the lug
w rench from the vehicle too l kit to remove it
r=>fig. 189.
• Remove the cap from the refill bottle.
• Position the refill bottle o n the filler tube
and tur n the bottle clockw ise until it stops
tur ning
(I) ~ fig. 190.
• Press lightly against the bottom of the bot­
tle @ to empty it. Continue p ressi ng the
bo ttom of the bottle unt il it i s empty or un­
t il fluid s tops flow ing in to the tank .
• Turn the bottle to the left w ithout pressing
on the bottom.
Closing the filler tube
• Tu rn the cap clockw ise on the fille r tu be
w ith the l ug wrench until you hear it t ighten
c ompletely.
• Close the tank cover .
After filling
The vehicle must be d riven. The system may
t ak e up to two m inu te s to dete ct t hat the
AdB lue has been filled .
• If the re was no Ad Blue left in the tank and a
ra nge of
O m i (0 km ) was displayed in the
instrument clus ter, switch the ig nition on
for about 15 se con ds befo re st art ing the e n­
gine .
WARNING
Ad B lue can irritate the sk in, eyes an d res­
p iratory system. If there is contact with
the fluid, flush immediately with plenty of
water. Co nsu lt a phys ician if necessary.
(D Note
- On ly use Ad B lue that conforms to the
standard ISO 22241-1. Do not mix any
add itives w ith the AdBl ue a nd do not d i­
lute it with water.
- Do not add Ad Bl ue to the diese l tank or
add diese l fuel to the Ad B lue tank. Mix­
ing can lead to damage to the engine
and the AdBl ue tank system. The Lim ited
N ew Vehicle Warranty does not cove r
su ch dam age .

226 Check ing and filling
- Always disconnect the battery.
- Never smoke or work near heaters or open flames . Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and persona l in ­
jury while the engine is running or being started, never touch:
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repa ir
with the engine running:
- Fi rst, fully apply the parking bra ke,
move se lec to r lever to P (Pa rk) .
- Always use extreme caution to preven t
clot hing, jewe lry, or long h air from ge t­
ting caught in the radiator fan, V -belts
or other moving parts, or from contact­ ing hot parts. Tie back hair before
start ing, and do not wear cloth ing that
will hang or droop into the eng ine.
- Min imize exposure to emission and
chemica l hazards¢ ,&..
A WARNING
California Propos ition 65 Warning:
- Engine exhaust, some of its constituents,
and certa in veh icle components conta in
or emit chemicals known to the State of
Califor nia to cause cancer and b irth de­
fec ts a nd reproduct ive ha rm. In addition,
certain fluids conta ined in vehicles and
certa in prod ucts of co mponent wear co n­
ta in o r emi t chemicals known to the
State o f Ca lifornia to cause can cer and
birth defects or ot her reproductive harm. -
Battery posts, terminals and re lated ac­
cessories conta in lead and lead com­
pounds, chemicals known to the State of
California to cause cance r and reproduc­
tive harms. Wash hands after handling .
(D Note
When adding flu ids, always make sure that
they are poured into the proper conta iner
or f iller opening, otherwise serious dam­
age to vehicle systems w ill occur.
® For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly. If
you see spots from oil or other ve hicle flu­
i ds, have yo ur vehicle inspected by a n au­
thori zed Audi dea le r.
Closing the engine hood
.,. Pull the hood down un til the pressure from
t he struts is reduced.
.,. Let the hood
drop down and latch in p lace .
Do not try to push it shut; it may fail to en­
gage ¢&_ .
A WARNING
-
A hood that is not completely latched
could fly up and b lock your view while dr iv­
ing.
- When you close the engine hood, check it
to make sure the safety catch has p roper­
ly engaged. The hood sho uld be flush
with the surrou nding vehicle body pa rts.
- If you notice while driv ing t hat the hood
is not s ecured prope rly, stop at onc e and
close it.

232 Check ing and filling
Before you check anything in the engine com­
partment,
a lways r ea d and heed all WARN­
INGS ¢ A in Working in the engine compart­
ment on page 225.
• Park your vehicle on a level surface.
• Switch
off the ignition .
• Read the eng ine coolant leve l from the cool­
ant expansion tank
c> fig. 196, c> page 22 7,
fig. 193. With a cold eng ine, the coolant
level should be between the "min" and
"max" markings. When the engine is warm,
the leve l may be slightly above the "max"
ma rk ing.
The location of the coolant expans ion tank
can be seen in the engine compartment illus­
tration ¢
page 22 7.
To obtain an accurate reading, the engine
must be sw itched
off.
The expans ion tank in your vehicle is equipped
with an electric coolant level sensor.
When the coo lant level is too low, the warning
light in the Auto-Check System ¢ page l 6 will
i l luminate unti l yo u add coolant and the level
has been restored to normal. Even though
there is an electric coolant level senso r, we
still recommend you check the coolant leve l
from time to time .
Coolant loss
Coolant loss may indicate a lea k in the cooling
system. In the event of coolant loss, the cool­
ing system should be inspected immediately
by your author ized Audi dealer. It is not
enough merely to add coolant.
In a
sealed system, losses can occur only if
the boiling point of the coolant is exceeded as
a result of overheat ing.
A WARNING
T he cooling system is unde r pr essure and
c an get ve ry hot. Reduce t he risk of s cald­
ing from hot coolant by followi ng these
steps .
- T urn
off the engine and allow it to cool
dow n. -
Protect your face, han ds and arms from
escaping flu id and steam by cover ing the
cap with a large, thick rag.
- Tu rn the cap slowly and very care fully in
a counte r-clockwise direct ion while ap­
plying lig ht, downward pressure on the
top of the cap.
- To avo id being burned, do not sp ill anti­
freeze or coolant on the exhaust system
or hot engine par ts. Under certa in cond i­
tions, th e ethylen e glyco l in engine coo l­
a nt can catch fire.
(D Note
Do not add a ny type o f radiator leak sea l­
ant to your veh icle's engine coolant. Add­
i ng radiator r epa ir fluid may adv erse ly af­
fe ct the funct io n and perfo rma nce of you r
co oling syste m and could result in damage
not covered by your New Veh icle Limi ted
War ran ty.
Adding coolant
Be very careful when adding engine coolant.
Befo re you check anyth ing in the eng ine com­
partment,
alway s read and heed all WARN·
INGS ¢ A in Working in the engine compart­
ment on page 225.
• Requirement: The re must be a r esidua l
amount of coolant in the e xpansion ta nk
¢(D.
•Tur no ff the engine.
• Le t the engine cool down.
• Place a thick rag ove r th e coo lant expansion
tank
¢ page 231, fig. 196 and carefully
twist the cap co unte r-clockwise c> &_ .
• Add coo lant m ixed in the correct rat io
¢ page 231, Coolant up to the MAX mark­
ing.
• Make s ure that the fl uid leve l remains sta-
b le. Add more coo la nt if necessary.
• Twis t the cap o n again
tightly.
Replacement engine coo la nt must confo rm to
exact spec ificat ions
¢ page 2 31, Coolant. .,.

M N <( (.J
'SI: ,...., \!) ..,.,
,...., ..,., ,....,
We recommend using only coolant addi-
tive
Gl2++, Gl3 or in an emergency Gl2+. Do
not use a different additive. In an emergency
use plain water until you can get the correct
additive and can restore the correct ratio. This
should be done as soon as possible .
If you have lost a considerable amount of
coolant, then you should add cold antifree ze
and cold water only when the engine is cold.
Always use
new engine coolant when refilling.
Do not fill coolant above the "MAX" mark. Ex­
cess coolant will be forced out through the pressure relief valve in the cap when the en­
gine becomes hot.
A WARNING
-The cooling system is under pressure and
can get very hot. Reduce the risk of
scalding from hot coolant by following
these steps.
-Turn off the engine and allow itto cool
down.
- Protect your face, hands and arms from
escaping fluid and steam by covering
the cap with a large, thick rag.
- Turn the cap slowly and very carefully
in a counter-clockwise direction while
applying light, downward pressure on
the top of the cap.
- To avoid being burned, do not spill an ­
tifreeze or coolant on the exhaust sys­
tem or hot engine parts. Under certain
conditions, the ethylene glycol in en­
gine coolant can catch fire.
- Antifreeze is poisonous. Always store an­
tifreeze 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 con­
tainer clearly marked "poison".
(D Note
- Do not add coolant if the expansion tank
is empty. Air could enter the cooling sys­
tem and damage the engine. If this is
Checking and filling 233
the case, do not continue driving. Seek
professional assistance .
- Coolant pollutes the environment and
could cause an engine fire. Excess cool­
ant will be forced out through the pres­
sure relief valve in the cap when the en­
gine becomes hot.
- If, in an emergency, only water can be
added, the correct ratio between water
and antifreeze
c> page 231 must be re­
stored as soon as possible.
@ For the sake of the environment
Drained coolant should not be reused. Al­
ways dispose of used coolant while observ­ ing all environmental regulations.
Radiator fan
The radiator fan switches on automatically by
itself.
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 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 engine compartment, or
- the engine compartment heats up because
the vehicle is parked in intense sunlight.
A WARNING
-To reduce the risk of personal injury nev­
er 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 au­
tomatically when the engine coolant reaches a certain temperature and will
continue to run until the coolant temper­
ature drops.
•
•

234 Checking and filling
Brake fluid
Checking brake fluid level
Fig . 197 Engine compartment: cove r on the brake fluid
reservo ir
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS ¢&. in Working in the engine compart­
ment on page 225.
,.. Read the brake fluid level from the brake
fluid reservoir¢
fig . 197, ¢ page 22 7,
fig. 193.
The brake flu id level must be be­
tween the "MIN" and "MAX" markings.
The location of the brake flu id reservoir can be
seen in the engine compartment illust rat ion
¢ page 227.
The fluid level may drop
slightly after some
time due to the automatic adjustment of the
brake pads. This is not cause for alarm.
If the brake fluid level falls
considerably be­
low the "MIN" mark, the brake warning/indi­
cator light . (U.S. models)/ . (Canadian
models) will come on¢
page 15. Do not con­
tinue to operate the vehicle. The comp lete
brake system shou ld be thoroughly checked
by an authorized A udi dealer or other quali­
fied facility and the cause corrected.
If the
brake fluid level is too low, the brake warning/
indicator light will illuminate. Contact an au­
thorized Audi dealer
immediately .
Changing brake fluid
Have the brake fluid changed by an experi­
enced technician .
Brake fluid absorbs moisture from the air. If
the water content in the brake fluid is too high, corrosion in the brake system may result
after a period of time . The boiling point of the
brake flu id will also decrease conside rably and
decrease braking pe rformance.
Therefore, the brake fluid must be changed
every two years . Always use new brake flu id
which conforms to Federal Motor Vehicle
Standard "FMVSS 116 DOT 4".
The brake fluid reservoir can be difficult to reach, therefore, we recommend that you
have the brake fluid changed by your author­
ized
Audi dealer. Your dealer has the correct
tools, the right brake fluid and the know-how
to do this for you.
A WARNING
- Brake fluid is poisonous . It must be stor­
ed only in the closed original container
out of the reach of children!
- Brake failure can resu lt from o ld or inap­
propriate brake fluid. Observe these pre­
cautions:
- Use only brake fluid that meets SA E
specification
J 1703 and conforms to
Federal Motor Vehicle Standard 116.
Always check with your authorized Audi
dealer to make sure you are using the
correct brake fluid. The correct type of
brake f luid is also indicated on the
brake fluid reservoir.
- The brake fluid must be new. Heavy use
of the brakes can cause a vapor lock if
the brake fluid is left in the system too
long. This can seriously affect the effi­
c ie ncy of the brakes as well as your
safety. This could resu lt in an accident.
(D Note
Brake fluid will damage the paint of your
vehicle .

Tires and wheels 253
pressures. Check all of the tires It is important to check the tire •
and be sure not to forget the pressure when the tires are • '
spare tire. If the pressure in any cold.
tire is too high when the tire is -Read the required tire pres-
"cold," let air out of the tire sure from the tire pressure la-
slowly with the edge of the tire bel. The tire pressure label is
gauge and keep checking the located on the driver's side B-
pressure until you reach the pillar.
pressure that is correct for the -Turn the valve stem cap coun-
load (passengers and luggage) ter-clockwise to remove it
and kind of driving you plan to from the tire valve.
do. -Place the air pressure gauge
If the pressure in any tire is too on the valve.
low, note the difference be- -The tire pressures should only
tween the pressure in the cold be checked and adjusted when
tire and the pressure you need the tires are cold. The slightly
and add the air that you need to
raised pressures of warm tires
reach the correct pressure for must not be reduced.
the vehicle load (passengers -Adjust the tire pressure to the
and luggage) for the tires on load you are carrying.
your vehicle as listed on the on -Reinstall the valve stem cap
your vehicle and in this manual on the valve.
and the kind of driving you plan
When should I check the tire
to do.
pressure?
Never exceed the maximum in-
The correct tire pressure is es-
flation pressure listed on the
pecially important at high
tire sidewall for any reason.
speeds. The pressure should
Remember that the vehicle therefore be checked at least
manufacturer, not the tire man- once a month and always be-
ufacturer, determines the cor- fore starting a journey. Do not
....
M N
rect tire pressure for the tires <( (.J
'SI:
on your vehicle . .... \!) 1.1'1
.... 1.1'1 ....

Tires and wheels 265
sure of their "previous histo-and sudden deflation and •
ry." Old used tires may have loss of control. • '
been damaged even though -Temperature grades apply
the damage cannot be seen to tires that are properly in-
that can lead to sudden tire flated and not over or un-
failure and loss of vehicle derinflated.
control. -For technical reasons it is
-All four wheels must be fit- not always possible to use
ted with radial tires of the wheels from other vehicles -
same type , size (rolling cir-
in some cases not even
cumference) and the same wheels from the same vehi-
tread pattern. Driving with cle model.
different tires reduces vehi- -If you install wheel trim
cle handling and can lead to discs on the vehicle wheels,
a loss of control. make sure that the air flow
-If the spare tire is not the to the brakes is not blocked.
same as the tires that are Reduced airflow to the
mounted on the vehicle - for brakes can them to over-
example with winter tires - heat, increasing stopping
only use the spare tire for a distances and causing a col-
short period of time and lision.
drive with extra ca re. Refit -Run flat tires may only be
the normal road wheel as used on vehicles that were
soon as safely possible. equipped with them at the
-Never drive faster than the factory. The vehicle must
maximum speed for which have a chassis designed for
the tires on your vehicle are run flat tires. Incorrect use
rated because tires that are of run flat tires can lead to
driven faster than their rat- vehicle damage or acci-
ed speed can fail suddenly. dents. Check with an au-
M -Overloading tires cause heat thorized Audi dealer or tire N <(
build-up, sudden tire fail- specialist to see if your vehi-(.J
'SI: ,....,
ure, including a blowout cle can be equipped with ... \!) 1.1'1 ,...., 1.1'1 ,....,

268 Tires and wheels
loss of control, crashes and serious per­
sonal injuries. Have worn or damaged tires
replaced immediately.
- Winter tires have maximum speed rating
that may be lower than your vehicle's
maximum speed .
- Never drive faster than the speed for
which the winter or other tires installed on your vehicle are rated.
A WARNING
Always adjust your driving to the road and traffic conditions. Never let the good ac­
celeration of the winter tires and all-wheel
drive tempt you into taking extra risks. Al­
ways remember:
- When braking, an all-wheel drive vehicle
handles in the same way as a front drive
vehicle .
- Drive carefully and reduce your speed on
icy and slippery roads, even winter tires
cannot help under black ice conditions.
@) For the sake of the environment
Use summer tires when weather condi­
tions permit. They are quieter, do not wear
as quickly and reduce fuel consumption.
Snow chains
Snow chains may be fitted only to the front
wheels, and only to certain tire sizes. Ask your
authorized Audi dealer on which tire sizes
snow chains can be used .
If you are going to use snow chains, then you
must install them on the front wheels at
least.
The snow chains must have low-profile links
and must not be thicker than 0.4 inch (10,5 mm), including the lock.
Remove wheel center covers and trim discs
before putting snow chains on your vehicle
q 0 . For safety reasons cover caps must then
be fitted over the wheel bolts. These are avail­
able from authorized Audi dealers.
A WARNING
Using the wrong snow chains for your vehi­
cle or installing them incorrectly can in­
crease the risk of loss of control leading to
serious personal injury.
- Snow chains are available in different
sizes . Always make sure to follow the in­
structions provided by the snow chain
manufacturer.
- When driving with snow chains never
drive faster than the speed permitted for
your specific snow chains.
- Always observe local regulations.
@ Note
-Remove snow chains before driving on
roads not covered with snow to avoid
damaging tires and wearing the snow
chains down unnecessarily .
- Snow chains, which come into direct con­
tact with the wheel rim, can scratch or damage it. Therefore, make sure that the
snow chains are suitably covered. Check
the position of the snow chains after
driving a few yards and correct if neces­
sary. Follow the instructions from the
snow chain manufacturer when doing so.
- If the Adaptive Air Suspension* should
malfunction, do not mount or use snow
chains because the vehicle will be ex­
tremely low. If you do drive with snow
chains on while the vehicle is at this lev­
el, the snow chains might severely dam­
age the wheelhouse and other parts of
the vehicle.
(j) Tips
Where snow chains are mandatory on cer­
tain roads, this normally also applies to
vehicles with all-wheel drive .