2021 AUDI A6 brake fluid

Table of contents

About this Owner's Manual......
SUMIMAry: < = exe : eens: Seen cs sens
QutckeaeCe ssh: «i esis se ois a eaves @
Cockpit. ...... 0... eee eee eee eee
Indicator lights overview...........4..
Display and operation...........
Instrument cluster...............
Instrument cluster overview...........
Operating. ecccuse w+ were oo wens oo ayes 9 ¥
Adjusting the display.................
Coolant temperature display...........
Tachometer’ series i ewe so snes ¥ & ome
Odometer.............. cee eee eee ee
Outside temperature display...........
Engine oil temperature indicator.......
Boost indicator...............0--000.
Shift light indicator..................
Sportidisplaystens « scwne x » eum os vomew «02
Vehicle functions ..............00000.
TOUCKHAISPLAYS « esis 6 6 sccm 6 x wees
General touch display operation........
Multi Media Interface................
Head-up display..................
Description............0.. ee cee eee
Voice recognition system........
General information..............00.
DESGriptiOns « = seen ¢ = seme xs eee st eee
External voice operation..............
Global functions.................
Additional function buttons...........
Starting and driving.............
Personalization..................
Opening and closing.............
Central locking) sani x x swasien © x sponae 2 aaaonor
Keys... eee
Luggage compartment lid.............
Childisafety lock seis 2 « sere ¥ © were 3 ¢ overs
Power windows............000eeeeee
Panorartiic glass roof 0... ieee s ieee es
NOD
OO
12 12 12
13
14 14
15 15
15
15
16
16
16
16 18
18
20
27
27 28 28 28
29
3d:
31
32 32
32
35 35
39
42
46 47
48
Valetiparking = s ssse «x cscs ov crue a ¥ oe 49
Garage door opener..........--.00 eee 50
Lights and Vision................. 53
Exterior lighting...................4. 53
Interior liQhting ss =e aves ss eews so eos 57
ViSIOMsn « 3 ses 3 3 ema oo wena vo ae © ove 58
Windshield wipers.............-..45- 60
Digital compass.............-.-0000- 63
Sitting correctly and safely...... 65
Correct passenger seating position...... 65
Frontseats:: » ssw. « ¢ sews & » saws +s ewe < 65
Steering wheel seis < «cies ¥ eerie ss eee 68
Head restraints.................0000. 69
Safety Beltsi: s sass x eeups ¢ < saves 2 e cee 70
Memory function . « scons ecw ee cro ee 73
Airbag system... ... 2.62... 0 ee eee eee 74
Child safety seats.................04- 78
Storage and convenience........ 84
POWErSOURCES coisa gs seen ss wae se aes 84
Gup holders. ¢ ssn ss wee 2 2 see 2 & pee 84
Storage and compartments............ 85
Luggage compartment............... 85
ROOF hacks « = weies x = wae 2 s eae 2 & ween 2 90
Warm and cold................... oF
Climate control system............... 91
Steering wheel heating............... 94
Fluids in the A/C system.............. 94
DOING): & eesc% 5 6 sccm 6 & ares 6 ores 6 2 oe 96
Starting the vehicle.................. 96
When OFIVING ws « ¢ cee, ss ews sa ews a os 97
Drive SYStEM sia 5 & enswee 6 2 ween oo OAK a Fa 103
Start/Stop system............220200- 104
Brakes; + 5 saa.a 2 aauaas s aaa @ 3s eae Ee Be 105
Electromechanical parking brake....... 107
Special driving situations.............. 109
Driving dynamic.................. 112
Audi drivesselecti. « cccas + 6 ersaew + « eueio + a6 112
Suspension ..............0 2.02 e ee eee 173
SteGritig « scan s + maw & = meen ve eee a ee 114

Driving

— Wet conditions
— Low temperatures, ice, and snow
— Roads covered in salt
— Dirty brake pads
Corrosion
Corrosion may form on the brake rotors if there is
no heavy braking, if the vehicle is not driven for
long periods of time, or if the vehicle is not driv-
en
frequently or for long distances. In this case,
braking heavily several times while driving at
high speeds can clean the brake rotors > A\.
Brake pads
New brake pads do not achieve their full braking
effect during the first 250 miles (400 km). They
must be “broken in” first. However, you can com-
pensate for the slightly reduced braking force by
pressing firmly on the brake pedal. Avoid heavy
braking during the break-in period.
Brake pad wear depends largely on the way the
vehicle is driven and on operating conditions.
Brake pad wear increases when driving frequently
in the city or short distances or when using a very
sporty driving style.
Ceramic brakes
Applies to: vehicles with ceramic brakes
Ceramic brakes provide excellent deceleration
rates.
The break-in period for new ceramic brakes may
be significantly longer than for standard brake
rotors. Due to the properties of the material,
they may cause noises at lower speeds. Ceramic
brakes also absorb more moisture in wet condi-
tions. Therefore, there will temporarily be less
braking force than when the brakes are dry. You
can compensate for this by pressing the brake
pedal harder.
Automatic post-collision braking system
The automatic post-collision braking system can
help to reduce the risk of sliding and of addition-
al collisions after an accident. If the airbag con-
trol module detects a collision, the vehicle is
braked by the ESC.
106
The vehicle does not brake automatically if one of
the following occurs:
— The driver presses the accelerator pedal, or
— The braking force generated by the pressed
brake pedal is greater than the braking force
that would be initiated by the system
— The ESC, the brake system, or the vehicle elec-
trical system is not functioning

ZX WARNING
— Only apply the brakes for the purpose of
cleaning the brake system when road and
traffic conditions permit. You must not en-
danger other road users and increase the
risk of an accident.
— Due to the risk of injury, only have an au-
thorized Audi dealer or authorized Audi
Service Facility work on the brake system.
Incorrect repairs could impair the function.
— Never let the vehicle roll while the engine is
stopped because this increases the risk of an
accident.
— During automatic braking maneuvers, the
brake pedal may move downward automati-
cally. To reduce the risk of injury, do not
place your foot under the brake pedal.

() Note
— Never let the brakes “rub” by pressing the
pedal lightly when braking is not actually
necessary. This can cause the brakes to over-
heat and increases braking distance and
causes wear.
— Observe the important information for driv-
ing downhill > page 109. This especially ap-
plies when towing a trailer.
(i) Tips
— If you retrofit your vehicle with a front spoil-
er, wheel covers or similar items, make sure
that
the air flow to the brakes is not ob-
structed. Otherwise the brake system can
overheat.
— Also refer to the information about brake
fluid > page 251.

Checking and Filling

can cause engine misfires. Uncombusted fuel
could enter the exhaust system, which could
cause overheating and damage to the catalytic
converter.
Malfunction Indicator Lamp (MIL)
If the S indicator light blinks or turns on, there
is a malfunction that is causing poor emissions
quality and that could damage the catalytic con-
verter. Drive slowly to an authorized Audi dealer
or authorized Audi Service Facility to have the
malfunction corrected.
The indicator light can also turn on if the fuel fill-
er cap is not closed correctly > page 2391).
Engine compartment
General information
Special care is required if you are working in the
engine compartment
For work in the engine compartment, such as
checking and filling fluids, there is a risk of in-
jury, scalding, accidents, and burns. For this
reason, follow all the warnings and general
safety precautions provided in the following in-
formation. The engine compartment is a dan-
gerous area in the vehicle. > A\.
Explanation of warnings (sticker in the engine
compartment):

Hot engine components!
@® Rotating parts!

The radiator fan can switch on at any
LS, time!

High voltage! Switch off the engine be-
5 fore coming into contact with any igni-
tion system components!




The catalytic converter can be damaged
"271 if the oil level is too high!

Always follow the instructions in the op-
erating manual.


)) Depending on the engine and country
242

ZA WARNING
— Turn the engine off.
— Switch the ignition off.
— Set the parking brake.
— Select the “P” (Park) selector lever position.
— Allow the engine to cool.
— Keep children away from the engine com-
partment.
— Never spill fluids on a hot engine. These flu-
ids (such as the freeze protection contained
in the coolant) can catch fire.
— Avoid short circuits in the electrical system.
— Never reach into the radiator fan. The fan is
temperature-controlled and can turn on
suddenly, even when the ignition is switched
off.
— Never open the hood when there is steam or
coolant escaping from the engine compart-
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
— The cap on the coolant expansion tank must
never be opened when the coolant is hot.
The cooling system is under pressure. There
is a risk of burns
—To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
thick cloth when opening.
— Do not remove the engine cover under any
circumstances. This increases the risk of
burns.
— Due to the risk of electric shock, never touch
the ignition cable or other components in
the electronic high-voltage ignition system
when the engine is running or is starting.
— Ifa gear is engaged while the vehicle is sta-
tionary and the engine is running, do not
press the accelerator pedal inadvertently.
Pressing the accelerator pedal will cause the
vehicle to move, and this could result in an
accident.
— If inspections or repairs must be performed
while the engine is running, moving compo-
nents (such as the ribbed belt, generator,
and radiator fan) pose an additional risk.

4K0012721BE
Checking and Filling


— Set the parking brake first and select the
“P” (Park) selector lever position.
— Always make sure that no parts of the
body, jewelry, ties, loose clothing, and
long hair can be caught in moving engine
components. Before any work, always re-
move any jewelry and/or ties, tie back long
hair, and make sure all clothing fits close
to the body to reduce the risk of anything
becoming caught in engine components.
— Pay attention to the following warnings list-
ed when work on the fuel system or on the
electrical equipment is required.
— Do not smoke.
— Never work near open flames.
— Always have a working fire extinguisher
nearby.
— All work on the battery or electrical system
in your vehicle can result in injuries, chemi-
cal burns, accidents, or burns. Because of
this, all work must be performed only by an
authorized Audi dealer or authorized Audi
Service Facility.
— Limit your exposure to exhaust and chemi-
cals to as short a time as possible.



A WARNING
California Proposition 65 Warning:
— Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali-
fornia to cause cancer and birth defects and
reproductive harm. In addition, certain flu-
ids contained in vehicles and certain prod-
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
— Battery posts, terminals and related acces-
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.
® Note
When filling fluids, be sure not to add any flu-
ids to the wrong reservoirs. Otherwise severe
malfunctions and engine damage will occur.
@) For the sake of the environment
You should regularly check the ground under
your vehicle in order to detect leaks quickly. If
there are visible spots from oil or other fluids,
bring your vehicle to an authorized Audi deal-
er or authorized Audi Service Facility to be
checked.
Opening and closing the hood
The hood is released from inside the vehicle.


Fig. 158 Footwell: release lever


RAZ-0016]





Fig. 159 Unlocked hood: lever
Make sure the wiper arms are not raised up from
the windshield. Otherwise the paint could be
damaged.
243

4K0012721BE
Checking and Filling

Engine compa ta CaN]

The most important check points.



Fig. 160 Typical location of the reservoir and the engine oil filler opening (example)
Observe the safety precautions > page 242, Gen- Eng ine oil
eral information.
If the engine oil level is too low

@ Washer fluid reservoir (>) > page 254
@® Jump start point (+) under a cover, (-) with If you need to add engine oil, use an oil that is
hex head screw > page 254, Charging the 12 listed on the sticker. The sticker is located at the
Volt vehicle battery > page 293, Jump start- _ front of the engine compartment > page 245,
ing fig. 160. When using the engine oil listed on the
@® Coolant expansion tank (£) under a cover sticker, you can adjust the oil level as often as
> page 250 needed.
@® Engine oil filler opening ("27) > page 247 If engine oil that meets the recommended speci-
© Brake fluid reservoir (O) under a cover fication is not available, in an emergency you
=> page 251 may add a maximum of 1 quart (1 liter) of
© Sticker* for engine oil specifications ACEA C3 or API SN engine oil one time until the
=> page 245 next oil change.
The coolant expansion tank and the engine oil For more information on the correct engine oil
filling opening may be located in different places for your vehicle, contact an authorized Audi deal-
within the engine compartment, depending on er or authorized Audi Service Facility. Have the oil
the engine version. changed by an authorized Audi dealer or author-
ized Service Facility. >
245

4K0012721BE
Checking and Filling


— Coolant additive and coolant can be danger-
ous to your health. For this reason, store the
coolant in the original container and away
from children. There is a risk of poisoning.


@) Note
Do not continue driving if the coolant expan-
sion tank is empty. Do not add any coolant,
because air could enter the cooling system
and damage the engine. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.
Brake fluid

BFV-0229]


Fig. 163 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions > page 242, Gen-
eral information.
Checking the brake fluid level
> Slide the cover that is located below the wind-
shield wipers on the driver's side toward the
windshield and remove the cover.
> Read the brake fluid level on the brake fluid res-
ervoir > page 245, fig. 160. The brake fluid lev-
el must be between the MIN and MAX markings
ANG
The brake fluid level is monitored automatically.
Messages
EG 7 @ Brakes: stop vehicle and check brake
fluid level
Stop the vehicle and check the brake fluid level.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance.
Changing the brake fluid
Brake fluid should be changed at regular inter-
vals. Have the brake fluid changed by an author-
ized Audi dealer or authorized Audi Service Facili-
ty. The authorized Audi dealer or authorized Audi
Service Facility will inform you of the replace-
ment intervals.

Z\ WARNING
— If the brake fluid level is below the MIN
marking, it can impair the braking effect and
driving safety, which increase the risk of an
accident. Do not continue driving. See an au-
thorized Audi dealer or authorized Audi
Service Facility for assistance.
— If the brake fluid is old, bubbles may form in
the brake system during heavy braking. This
could impair braking performance and driv-
ing safety, which increases the risk of an ac-
cident.
—The brake fluid in your vehicle must meet
the standard VW 501 14 and is available at
an authorized Audi dealer or authorized
Audi Service Facility. If this brake fluid is not
available, another high-grade brake fluid of
equivalent quality may be used, and it must
meet the U.S. Federal Motor Vehicle Stand-
ard (FMVSS) 116 DOT 4, Class 6.
@) Note
— If the brake fluid level is above the MAX
marking, brake fluid may leak out over the
edge of the reservoir and result in damage
to the vehicle.
— Do not allow any brake fluid to come into
contact with the vehicle paint, because it
will corrode the paint.


Electrical system
If the z= / B or fl indicator light turns on,
there is a malfunction in the power supply, the
battery, or the vehicle electrical system.
= / B Electrical system: malfunction! Safely
stop vehicle
251

Blowers + cssios «0 cneaene a & comeaus we soem vw teow = 92
Bluetooth
Audio player............000 2000 e ee eee 221
Connecting adevice...............006- 235
Connecting a mobile phone............ 181
Deleting adevice......... cee eee eee eee 236
Device overview............2..2.0000- 235
Disconnecting adevice................ 235
Displaying profiles..................0. 236
Selecting adevice.............0.-.00. 235
Specifying a favorite................0. 236
BOOSts: « 2 sews « @ stews & 2 sews Fe eee ge ee ce 16
Boost pressure indicator................. 16
Brake fluid
Checking the brake fluid level........... 251
Brak@Siecs ¢ ¢ ees ¢ o aes 2 eee ae eee eo oe 105
Brake:fluids « « sone eo eae oo enw vv cow 251
Emergency braking function............ 108
HOtars: x 2 syne: 5 ames § eee ox me 2 oe 109
New brake pads .......6. 0: es eeee eens 106
Bravidsis » sauvs y © squme 9 © eigen =o Renee «Been 237
Break-in security feature................. 38
Breaking in
New brake pads............ ee eee eee 106
Newtires. 2.2... 0.0... c eee ee eee eee 263
Browser
refer to Mediacenter..............-00- 224
Bulb replacement..................-00- 302
Business address...........00-.000e eee 206
C
California Proposition 65 Warning........ 243
Battery specific.......... 0.0 e eee ae 253
Calllist. 0... eee eee eee eee eee 185
Cameras... 2... eee eee 123
LOCAUIONS wx ¢ s aan ¢ ¢ Sees » ¥ Saewe 2 ¢ Saree 124
Capacities
Fuel tank’, = css ¢ s meme 2s news so ees eee 314
Washer fluid reservoir...............0. 314
Cargo MOf in cs coas 2 2 wm oe ewes oe wen oe 89
Gargo nets ss sees « wesw v women 5 v were 6 3 Co 88
Carwashis < con s+ goes ve sees 2p Rew a ee 280
Catalytic converter.............--00000- 241
Cell phone
refer to Telephone...........-.0ee000 181
316
Cell phone compartment
refer to Audi phone box.............4. 183
Central
locking......... 0.0.0. c eee ee eee 35
AUTO LOCK: 5 sacs s ana. s aaam & § Suid G 3 Have 35
Convenience key............0 0c ee eee 40
Convenience opening and closing......... 48
Luggage compartment lid............... 43
Mechanically unlocking and locking....... 38
MESSAGES « snc 5 0 smones @ a seme 3 3 aemene osname 37
Remote control key............--.00005 40
SGttiNnGs s x cewp » x eee £2 REE Fo wR F 8 oe 36
Vehicle key sccm « « svsnoue =o weenme = stonene i 3 omens 40
Central locking switch..............00.0. 37
Ceramic DrakeSeovic. x a eins we seesam o o ceca ¥ os 106
Certificationts, s 2 acws s « saun + ¢ suas 2 ¢ eee 311
Changing light bulbs................... 302
Charging
refer to Power sourceS...........-.00-05 84
Charging the battery
Mobilesdevicesis « « ssisin 6 seine sw aysene 2 as 222
USB... eee 184
Wirelessis « « saups ¢ © sees x 2 emus xe ees gb 184
Child safety lock
Climate control system controls in the rear. 46
Power windows...........0000e eee eeee 46
REAMrdGGrSisc + s saan sa wae a Ales s aeeR GS 46
Child safety seats... ..... cece cece eee 78
Securing to the top tether anchor........ 82
Securing with asafety belt... co. 6 6 cows s 81
Securing with LATCH...............2--. 80
Cleaning... ... cece eee eee ee 280
Cleaning Alcantara...............000005 283
Cleaning artificialleather............... 283
Cleaning carbon components........ 282, 283
Gleaning controls’. « sees «esse « e saws x eo 283
Cleaning decorative parts andtrim........ 282
Cleaning exhaust tail pipes.............. 282
Cleaning plastic parts................0. 282
Cleaning textiles................0.000. 283
Climate control system...........--..0-- 91
Climate control system controls in the rear
Child safety lock................000000. 46
Closing
Automatic luggage compartment lid...... 43
Convenience closing.............+-+04- 48
Hood ...... eee ee eee ee 243
Luggage compartment lid............... 43