2014 AUDI A7 brake fluid

14 Instruments and warning/indicator lights
I
• •
USA models : Safety systems
¢page 19
Canada mod els: Safety systems
¢page 19
Electronic Stabilization Control
(ESC) ./
¢page 19
Electronic Stabilization Control
(ESC) ./
¢page 19
USA models :
Anti-lock braking system (ABS)
defective ./
¢page20
Canada models:
Anti-loc k braking system (ABS)
defective ./
¢page20
Worn brake pads
¢page 21
Electromechanical parking brake
¢page 79
Tire pressure monitoring system
./
¢page261
mffl Tire pressure monitoring system
~ ¢page261
•
•
II
•
Electronic power control./ (alter­
native
to mJ )
¢page21
Glow plug system
(alternative to
[3i )
¢page 21
Malfunction indicator Lamp (MIL)
./
¢page21
Diesel particu late fi lter* clogged
¢ page22
Engine speed limitation
¢page22
Engine oil level
¢page 18
•
•
•
l:J
m
•
•
Engine oil sensor
¢ page 22
Battery
¢page 17
Tank system
¢page 22
Windshie ld washer fluid level
¢page 22
Windshield wipers
¢page 22
Remote control key
¢ page 76
Remote control key
¢page 78
Battery in remote control key
¢page 33
Defective light bulb warni ng
¢page 23
Rear fog light(s)
¢ page 23
Headlight range control
¢page 23
adaptive light*
¢page 23
Light-/rain sensor faulty
¢page 23
Audi active lane assist*
¢page 96
Transmission (tiptronic)
¢page 114
Transmission
- 5 tronic
¢ page 114
Electronic steering column lock
¢page 18
Engine start system
¢page 18

Instruments and warning/indicator lights 15
a
Ad Blue ,o
Centra l ind icator light
¢page 19
Elect romechan ica l steering ./
¢page 20 1
Air suspension*
c::;, page 19
Sport different ial*
c:;,page23
Rear spoiler
.:;,page 199
Refill Ad B lue*
c:;,page223
r4l'il.nH.dBl ue malfu ncti on*
c::;, page 2 2 3
Other indicator lights
11
II
•
I
•
•
•
T u rn signa ls
c:;, page24
Canada models: Cruise control*
c:;,page84
A dapt ive cr uise c ontrol *
.:;,page BB
Adaptive cr uise control *
.:;,page BB
Adaptive cr uise control *
c:;,pageBB
Au di active lane ass ist*
c:;, page96
Start -Stop-System *
¢pa ge 81
Start -Stop -System *
c:;,pageBl
Hi gh beam
¢page 46
BRAKE /((J)) Brake system
The light illuminates when the ignition is
swi tched on.
It goes o ut after the e ngine has
b een st arte d. T his indi ca tes that t he br ake
warning ligh t is functioni ng pro perly.
If the brake warning light does not light up
when the engine is cranking, there may be a malfunction in the electrical system. In this
case, contact your Audi dealer.
If t he brake sys tem wa rn in g/ indi ca to r l ight
t u rns o n, there i s a br ake sys te m malfu nction .
1111 (USA models) /. (Canada models )
Stop vehicle and check brake fluid level
If the indicator light turns on and the mes­
sage appears, proceed as fo llows:
.,. Pull
off th e road .
.,. Stop the vehicle.
.,. Tur n
off the engi ne.
.,. Chec k th e b rake fluid level
c::;, page 23 7 .
.,. Con tact your nea rest au tho rized repair fa-
cility if necessary .
Warning! Fault in brake system. Contact
dealer
If the ABS indicator light~ (USA models)/
(I] (Canada mode ls), the ESC ind icator light
Jj] and t he b rake system indicator light
1111 ( U SA mode ls)/ . (Canada mode ls) tur n
o n and the message a ppears, the A BS, ESC
and braki ng d istr ib utio n are no t wo rki ng
c::;, ,&. .
Carefully drive to your author ized Audi dealer
i mmediat ely to have the ma lf u nct ion correct­
ed ¢,&. .
1111 (USA models )/. (Canada models)
Parking brake: system fault! Please contact
dealer
- If the ind icator light and the message ap -
pea r
when stationary or after switching the
ignition on ,
ch eck if yo u can release the
pa rk ing brake . Afte r releasing the parking
bra ke, ca refully d rive to your au thor ized
Au di dealer i m media tely to have the mal­
fu nction cor rected. If y ou can not rele ase th e
p arki ng br ake, see k profession al assi stance . .,..

16 Instrum ent s and w arn ing /indic ato r light s
- If the indicator light and the message ap­
pear
while dri ving , the emergency braking
function may not be available. It may not be
poss ible to set the parking brake or release
it once it has been set. Seek professional as­
s istance .
(USA models): If the warning light
1111 and
the warning light
EiJ appear together, imme­
diately contact your authorized Aud i dealer or
qualified workshop to have all brake pads in ­
spected
~ page 21 .
When the light comes on, an audib le warning
signal is also given.
.&_ WARNING
- Always observe the warnings in
~ page 22 7, before opening the hood
and checking the brake fluid .
- Driv ing with low brake fluid is a safety
hazard. Stop the car and get professional
assistance.
- If the 1111 (USA models)/ . (Canada
mode ls) brake system indicator light
tu rns on together with the ABS and ESC
indicator lights, the ABS/ ESC regu lating
function may have failed. Functions that
stabilize the vehicle are no longer availa­
ble. This could cause the vehicle to
swerve and increase the risk of sliding.
Drive carefu lly to the nearest authorized
Audi dealer or other qualif ied workshop
and have the malfunction corrected .
- If the brake warning/indicator light does
not go out after a few seconds and the
park ing brake is released, or lights up
wh ile you are driv ing, the fluid level in
the brake f luid rese rvoir is too low . If you
believe that it is safe to do so, proceed
immedi ately at low speed to the nearest
authorized Aud i dealer o r qualified repair
facility and have the brake system in­
spected.
- Always keep in mind that after several
brake applications, yo u will need g reater
pressure on the brake peda l to stop your
vehicle. Do not re ly on stra ined brakes to
respond w ith maximum stopp ing power in critical situations
. You must allow for
increased braking distances. The extra
distance used up by fading brakes could lead to an accident .
PARK/(®) Electromechanical parking brake
The warning/indicator light monitors the
electromechanical parking brake .
If the indicator light -(USA models) /.
(Canada mode ls) turns on, the parking brake
was set. If the parking brake is set when the
ignition is off, the indicator ligh t turns off af­
ter about 20 seconds .
The warning/indicator light w ill go out when
the parking brake is re leased.
- (USA model s) /. (Canada m odel s)
Caut ion: Vehicle parked too steep
If the indicator l ight b links and the message
appea rs, there is not enough braking power to
keep the vehicle from roll ing. The b rakes have
overheated . The vehicle could roll away even
on a sma ll incline.
Pre ss brak e ped al to relea se parking brake
To re lease the park ing brake, press the brake
peda l and press t he button
@ii or sta rt driving
with sta rting assist at the same time
~ page 80.
Please re le ase parking brak e
To release the park ing brake manually, press
the brake pedal and press the button
@ii at the
same t ime. The parki ng brake only releases
automat ica lly if the driver's safety belt is fas­
tened .
Ill Parking b rake!
If the Iii indicator lig ht t urns on and this
message appears, there is a parking brake
malfunction . Drive to your authorized Audi
dealer or qualified workshop immediately to
have the malfunct ion corrected.

200 Intelligent technology
Braking
General information
What affects braking efficiency?
Operating conditions and driving habits
The brakes on today's automobi les are sti ll
subject to wear, depending largely on operat­
ing conditions and driving habits
c:> ,&. On
vehicles that are either driven mostly in stop­
and-go city traffic or are driven hard, the brake pads should be checked by your author­
ized Audi dealer more often than specified in
the
Warranty & Maintenan ce booklet . Failure
to have your b rake pads inspected can result
in red uced brake performance.
On steep slopes, you shou ld use the brak ing
effect of the engine. This way, you prevent un­
necessary wear on the brake system. If you
must use yo ur brakes, do not hold the brakes
down continuously. Pump the brakes at inter­
va ls.
Moisture or road salt
Unde r certain conditions, for example, when
driving through water or very heavy rain, or
even after washing your vehicle, the braking
effect can be red uced due to moisture (or in
freezing conditions ice) on the brake pads. A
few careful brake applications should dry off the brake pads or remove any ice coatings.
When you are driving at higher speeds with
the windshield wipers on, the brake pads will
briefly touch the brake discs in regular inter­
vals so as to improve reaction t ime when brak­
ing on wet surfaces. You the driver will not no­
tice anything .
The effectiveness of the brakes can be reduced
when the vehicle is dr iven on a salt-covered
road and the brakes are not used . Here too,
you should clean off accumulated salt coat ing
from brake discs and pads with a few careful
applications of the brake
c:> ,& .
Corrosion
There may be a tendency for dirt to build up
on the brake pads and corrosion to form on the
discs if the car is not driven regu larly or
o n Ly for short trips with litt le use of the
brakes.
If the brakes are not used frequently, or if cor­
r osion has formed on the discs, it is advisable
to clean off the pads and discs by braking
firmly a few times from a moderately h igh
speed
c:> .&. .
Faults in the brake system
If you shou ld notice a sudden increase in
brake pedal travel, then one of the two brake
circuits may have fai led
c::> .&. .
Low brake fluid level
Malfunctions can occu r in the brake system if
the brake fluid level is too low. The brake fluid
l evel is monitored electronically.
Brake booster
The brake booster works with vacuum pres­
su re which is created only when the eng ine is
running
c::> ,& .
Brake lining wear status
Brake lining wear may be checked by visual in­
spect ion of the condition of the brake pads
t hr ough the open ings in the wheel. If neces­
sary, the wheel may be removed for this in­
spect ion
c:> page 266, Changing a wheel.
.8_ WARNING
-You shou ld perform braking maneuvers
for the purpose of cleaning the brake
system only if road conditions permit.
Other road users must not be put at risk -
you may cause an accident!
- Before descending a steep grade, reduce
speed and sh ift transmission into a lower
gear or lower driving range. Do not ride
the brakes or hold the pedal down too
long or too often . This could cause the
brakes to get hot and diminish braking
efficiency.
- Do not "ride the brakes" by resting your
foot on the pedal when you do not intend
to brake. This may cause the brakes to

210 Trailer towing
Make sure that the cooling system has eno ugh
fluid .
Tire p res sure
When tow ing a trai le r, inflate the t ires of your
vehi cle to the co ld tire pressure listed under
"Full load" on the label located on the driver's
side B-pillar (visible when the door is open) .
Inflate trailer t ires to trai ler and tire manufac­
turers' specifications.
Lights
Chec k to make s ure both veh icle and trailer
lights are working properly.
Safety chains
Be sure tra iler safety cha ins are properly con­
nected from the trailer to the hitch on the ve­
h icle. Leave enough slack in the chains to per ­
mit turn ing corners . When you install safety
cha ins, make su re they wi ll not drag on the
road when yo u are driving.
The chains shou ld cross under the tra iler
tongue to prevent it from dropping in case of
separation from the hitch.
Adjusting the Audi drive select
Make sure the vehicle is on a level su rface be­
for e
hitching up the tra ile r and b efor e adjust­
ing the tongue weight. The vehicle must be in
auto or comfort dr iving mode and no t raised
qpage 102, q(D _
Make sure that the vehicle is lowered. In Info­
tainment , se lect:
ICARI f u nction button> Low­
e r
control b utton .
I f you m ust dr ive under poor road co ndit ions,
you can raise the veh icle
aft er coup ling the
tra iler or
after adjusting the tong ue weig ht
q page 104.
-Changes in tempe ratu re or load can af­
fect the heig ht of the veh icle.
- Always se lect
auto or comfort mode.
Otherwise, the tongue load spec ified for
your vehicle will no longer be applicable.
Driving instructions
Driving with a trailer always requires extra
care and consideration .
To obtain the best possible handling of vehicle
and trailer, please note the fo llow ing:
.,. Do not tow a loaded t railer when yo ur car it­
self is not loaded.
.,. Be especially careful when passing other
veh icles.
.,. Observe speed limits .
.,. Do not dr ive at the max imum permissib le
speed.
.,. Always app ly brakes early .
.,. Mon itor the tempe ratu re ga uge.
Weight distribut ion
T owing a loaded trailer with an empty car re­
su lts in a highly unstable distribution of
we ight. If this cannot be avoided, drive at very
low speeds on ly to avoid t he risk of losing
steering con tro l.
A "ba lanced " rig is easier to ope rate and con­
t ro l. This means that the tow vehicle should
be loaded to the extent possible and permissi­
ble , while keep ing the trai ler as light as possi ­
ble under the c ircumstances . Whenever poss i­
ble , transfer some cargo to the luggage com ­
partment of the tow veh icle while observing
tong ue load requirements and vehicle load ing
considerations.
Speed
The higher the speed, the more difficu lt it be ­
comes for the driver to control the rig . Do not
drive at the maximum permissib le speed. Re­
duce your speed even more if load, weather or
wind conditions are unfavorable -particularly
whe n going downhill.
Red uce veh icle speed
immediately if the trail­
er shows the slightest s ign of sway ing .
Do not
try to stop the s way ing b y accele rating .
Observe speed limits . In some a reas, speeds
for vehicles tow ing tra ilers are lower than for
regular veh icles . .,.

Checking and filling Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 191 Dr iver footwell: release lever
Fig. 192 Rocker switch under the hood
Make sure the wiper arms are not raised up
from the w indshield. Otherw ise the paint
could be damaged.
.. Pull the lever under the instrument panel in
the d irect ion of the arrow
~ fig. 191.
.. Raise the hood slightly~ &-
.. Press the rocker switc h under the hood up­
ward
~ fig. 192. This re leases the catch .
.. Open the hood .
A WARNING
Hot engine coo lant can burn you.
- To reduce the r isk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment . Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood.
Checkin g and fillin g 22 7
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment.
Wh ene ve r y ou must p erform an y wor k in the
e ng ine com pa rtm ent , for e xample checking
a nd filling diff ere nt fluids, th ere is a risk of
inju ry, burn s and accid ent s. To pr eve nt per­
so nal injury alwa ys observ e the foll owing
WARNING S. The engin e compartment of an y
v e hicle i s a h az a rdou s are a
~ ,&.
h WARNING
To help avoid injury, before yo u check any ­
thing under the hood:
- Turn off the engine.
- Sw itch off the ignition.
- Apply the parki ng brake.
- Move selector leve r to P (Park).
- Always let the engine cool down. Hot
components w ill burn skin on contact .
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coo la nt escaping from the engine
compa rtment. Wait unt il no steam or
coolant can be seen o r heard before care­
fu lly opening the hood.
- Keep ch ildren away from the engine com­
pa rtment.
- Never sp ill fluids on hot engine compo­
nents . They can cause a fire .
- Never touch the rad iator fan. The auxili­
ary electric fan is temperat ure controlled
a nd can sw itch on suddenly .
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
a nt system is p ressu rized and hot cool­
a nt cou ld spray o ut.
- Protect your face, hands and arm from
steam or hot engine coolant by plac ing a
thick rag ove r the cap when you open the
coo lant rese rvoir.
- Do not remove the engine cover under
any circumstances. This inc reases the
ris k of burns.
- If work on the fue l system o r the elec tri ­
cal system is necessary:

228 Check ing and filling
- Always disconnect the battery.
- Never smoke or wor k 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 brake,
move se lec tor lever to P (Pa rk) .
- Always use extreme caution to prevent
clot hing, jewe lry, or long ha ir 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 .
- Minimize exposure to emission and chemica l ha zards¢ ,&..
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
fects 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 or emi t chemicals known to the
State o f Ca lifornia to cause can cer and
birth defects or other 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 cancer 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
the 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 that the hood
is not s ecured prope rly, stop at onc e and
close it.

continue to run until the coolant temper­
ature drops.
Brake fluid
Checking brake fluid level
Fig. 197 E ngine co mpartment : cove r on the b rake fluid
r ese rvoir
Before you check anything i n the engine com­
partment,
a lw ays read and heed all W ARN ­
ING S 9 A in Working in the engine compart ­
ment on page
22 7.
~ Read the brake fluid level from the brake
fluid reservoir
9 fig . 197, 9 page 229,
fig. 193.
The brake fluid level must be be ­
tween the "MIN" and "MAX" markings .
The location of the brake fl uid reservo ir can be
seen in the engine compartment illustrat ion
9 page229.
The fluid level may drop slightly after some
time due to the automatic adj ustment of the
b rake pads. This is not cause for alarm.
I f the brake fluid level falls
considerably be­
l ow the "MIN " mark, the brake wa rning/indi­
cator ligh t
1111 (U.S. models)/ . (Canadia n
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 Audi dealer or other quali­
f ied fac ility and the cau se corrected.
If the
brake fluid level is too low, the brake warning/
indicator light will illuminate . Contact an au ­
thor ized Audi dealer
imm ediat ely .
Checkin g and fillin g 237
Changing brake fluid
Have the brake fluid changed by an experi­
enced technician .
Brake fluid absorbs mois ture from the air. If
the wa ter 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 dec rease considerably and
decrease braking pe rformance.
Therefore, the brake fluid must be changed
ev ery two years. Always use new brake flu id
which conforms to Federal Motor Vehicle
Standard "F MVSS 116 DOT 4 ".
The brake fluid reservo ir can be d iff icult to
reach, the refore, we recommend that you
have the brake fluid changed by your author­
i zed
Audi dealer . Your dealer has t he correct
tools, the right brake fl uid 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 f luid. Observe these pre­
cautions:
- Use only brake fluid that meets SAE
spec ificat ion
J 1 7 03 and conforms to
Federa l Moto r Ve hicl e Standard 116.
Always check with yo ur authorized Audi
dealer to make sure yo u are using the
correct bra ke 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
l ong . This can seriously affect the effi ­
c iency of the brakes as well as your
safety. Th is cou ld resu lt in an accident .
(D Note
Brake fluid will damage the paint of your
vehicle .
.