2021 AUDI A6 engine oil

audio fuse box location heater boot engine oil checking oil

Page 250 of 332

$AUDI A6 2021 Owner´s Manual Checking and Filling ZA\ WARNING — When adding oil, do not let oil drip onto hot engine components. This increases the risk of a fire. — You must close the cap on the oil filler open-$

Checking and Filling

ZA\ WARNING
— When adding oil, do not let oil drip onto hot
engine components. This increases the risk
of a fire.
— You must close the cap on the oil filler open-
ing correctly so that oil does not leak out on-
to the hot engine and exhaust system when
the engine is running, because this is a fire
hazard.
— Always clean skin thoroughly if it comes into
contact with engine oil.
—
Engine oil is poisonous and must be kept out
of reach of children.
— Store the engine oil securely in the original
container.
@) Note
— The New Vehicle Limited Warranty does not
cover damage or malfunctions if the recom-
mended intended use of the vehicle and
maintenance measures listed in the Audi
Owner's Manual and the Warranty & Main-
tenance Booklet were not followed.
— Only use high-grade engine oil that explicit-
ly meets the Audi oil quality standard for
your vehicle. Using another oil may cause
severe vehicle damage.
— Do not mix any additives with the engine oil.
Additives may cause engine damage that is
not covered by your New Vehicle Limited
Warranty.

@ For the sake of the environment
— Oil should never enter the sewer system or
come into contact with the ground.
— Follow the legal regulations in the country
where you are located when disposing of
empty oil containers.
CET Ute Rie Lae!
Audi recommends having the oil changed at an
authorized Audi dealer or authorized Audi Serv-
ice Facility.
Observe the safety precautions > page 242, Gen-
eral information.
248
The engine oil must be changed at the intervals
specified in the Warranty & Maintenance Book-
let. This is very important because the lubrication
function of the oil gradually declines during regu-
lar vehicle operation.
The engine oil should be changed more frequent-
ly under certain circumstances. Have the oil
changed more frequently if you often drive short
distances, your vehicle is predominantly in stop-
and-go traffic situations, is in very dusty environ-
ments, or is operated for long periods of time in
temperatures below zero.
Cleansing additives in the oil make fresh oil ap-
pear darker after the engine has run briefly. This
is normal and no reason to change the engine oil
more frequently than recommended.
Because correctly disposing of engine oil is diffi-
cult and special tools and technical knowledge
are needed for an oil change, Audi recommends
having your engine oil changed by an authorized
Audi dealer or authorized Audi Service Facility.
If you change the engine oil yourself, please note
the following important information:

ZA WARNING
If you change the engine oil on the vehicle
yourself, the following precautions must be
followed:
— Wear protective eyewear.
— Due to the risk of scalding, allow the engine
to cool down sufficiently.
— Maintain enough distance when you are re-
moving the oil drain plug. While doing this,
keep your forearm parallel to the ground to
reduce the risk of hot oil dripping down your
arm.
— Drain the oil into a container designed for
this purpose that is large enough to hold the
full amount of oil in your engine.
— Engine oil is poisonous. Always store out of
reach of children.
— Prolonged contact of used engine oil with
the skin may cause skin damage. Always
wash oil off immediately with soap and wa-
ter to protect your skin.

Page 251 of 332

AUDI A6 2021 Owner´s Manual 4K0012721BE
Checking and Filling

@) Note
Do not mix any additives with the engine oil.
Additives may cause engine damage that is
not covered by your New Vehicle Limited War-
ranty.
@) For th

4K0012721BE
Checking and Filling

@) Note
Do not mix any additives with the engine oil.
Additives may cause engine damage that is
not covered by your New Vehicle Limited War-
ranty.
@) For the sake of the environment
— Before changing the engine oil, make sure
you can dispose of the used engine oil cor-
rectly.
— Engine oil must always be disposed of cor-
rectly. Do not dump it in the yard, in the for-
est, or in open water, river channels, or sew-
ers.
— Have your used engine oil recycled by bring-
ing it to a used oil collection site or contact
a gas station.
Cooling system
The engine cooling system is filled with a mixture
of purified water and coolant additive at the fac-
tory. This coolant must not be not changed.
The coolant level is monitored using the |_| indi-
cator light. However, occasionally checking the
coolant level is recommended.
Messages
HAturn off engine and check coolant level. See
owner's manual
The coolant level is too low.
Stop driving and switch the engine off. Check the
coolant level > page 250.
— If the coolant level is too low, add coolant
= page 250. Only continue driving once the in-
dicator light turns off.
& Coolant temperature: too high. Please let
engine run while vehicle is stationary
Let the engine run at idle for a few minutes to
cool off, until the indicator light turns off.
— If the indicator light does not turn off, do not
continue driving the vehicle. See an authorized
Audi dealer or authorized Audi Service Facility
for assistance.
|} Coolant system: malfunction! Please turn
off engine
Do not continue driving, shut the engine off, and
switch the ignition off.
— See an authorized Audi dealer or authorized
Audi Service Facility for assistance.
Coolant additive
The coolant additive is made of anti-freezing and
corrosion protection agents. Only add the follow-
ing coolant additives mixed with distilled water.

Coolant additive
G12evo
Specification
TL774L

The amount of coolant additive that needs to be
mixed with water depends on the climate where
the vehicle will be operated. If the coolant addi-
tive percentage is too low, the coolant can freeze
and damage the engine.

Coolant Freeze protec-
additive tion
Warm min. 40% min. -13 °F
regions max. 45% (-25 °C)
Cold min. 50% max. -40 °F
regions max. 55% (-40 °C)

@) Note
— Before the start of winter, have an author-
ized Audi dealer or authorized Audi Service
Facility check if the coolant additive in your
vehicle matches the percentage appropriate
for the climate. This is especially important
when driving in colder climates.
—If the G12evo coolant additive is not availa-
ble in an emergency, do not add any other
additive. You could damage the engine. If
this happens, only use distilled water and
restore the correct mixture ratio with the
specified coolant additive as soon as possi-
ble.
— Only refill with new coolant.
— Radiator sealant must not be mixed with
the coolant.
249

Page 252 of 332

AUDI A6 2021 Owner´s Manual Checking and Filling

— You can continue driving if the permitted
G12evo coolant additive was not added.
However, go to an authorized Audi dealer or
authorized Audi Service Facility immediatel

Checking and Filling

— You can continue driving if the permitted
G12evo coolant additive was not added.
However, go to an authorized Audi dealer or
authorized Audi Service Facility immediately
to have the coolant replaced to reduce the
risk of engine damage.
— Due to the risk of engine damage, the cool-
ing system should only be refilled by an au-
thorized Audi dealer or authorized Audi
Service Facility. An authorized Audi dealer or
authorized Audi Service Facility can also pro-
vide you with important information about
the recommended coolant additive.
ecking coolant

= Fe [RAZ-0540]

MIN

Fig. 162 Engine compartment - Coolant expansion tank:
@ cover with release button; @) markings
Observe the safety precautions > page 242, Gen-
eral information.
Checking the coolant level
> Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood > page 243.
The coolant expansion tank for some engines is
located in the water drip tray under a cover. Slide
the
cover that is located below the windshield
wiper on the front passenger's side toward the
windshield and remove the cover.
> Check the coolant level in the coolant expan-
sion tank > page 245, fig. 160 using the outer
markings @) > fig. 162. The coolant level must
be between the markings @) when the engine is
cold. When the engine is warm it can be slight-
ly above the upper marking.
>» When you add coolant to the expansion tank,
please refer to > page 249, Cooling system.
250
Adding coolant
Requirement: there must be a residual amount of
coolant in the expansion tank >(@).
If you must add coolant, use a mixture of water
and coolant additive. Audi recommends mixing
the coolant additive with distilled water.
> Allow the engine to cool.
> Place a large, thick towel on the coolant expan-
sion tank cap.
» Push the release button @ > fig. 162 on the
cap and carefully turn it to the left until you
feel resistance > /\.
> Push the release button again and remove the
cap completely.
> Add coolant mixed in the correct ratio
=> page 249 up to the MAX marking.
> Make sure that the fluid level remains stable.
Add more coolant if necessary.
> Turn the cap to the right to tighten it until you
feel resistance a second time.
Coolant loss usually indicates that there is a leak.
Immediately drive your vehicle to an authorized
Audi dealer or authorized Audi Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, coolant loss can re-
sult from the coolant boiling due overheating
and then being forced out of the cooling system.

ZA WARNING
— The engine compartment in any vehicle is a
potentially dangerous area. Stop the engine,
switch the ignition off, and allow the engine
to cool before working in the engine com-
partment. Always follow the information
found in > page 242, General information.
— Never open the hood if you can see or hear
steam or coolant escaping from the engine
compartment. This increases the risk of
burns. The cooling system is under pressure.
When you no longer see or hear steam or
coolant escaping, you may open the engine
compartment with caution.
— When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.

Page 257 of 332

AUDI A6 2021 Owner´s Manual 4K0012721BE
Checking and Filling

anti-freezing agent should be added to the water
so that it does not freeze.
Messages
EE Please add washer fluid
Fill the washer fluid for the windshield wash

4K0012721BE
Checking and Filling

anti-freezing agent should be added to the water
so that it does not freeze.
Messages
EE Please add washer fluid
Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched off.
@) Note
— The concentration of anti-freezing agent
must be adjusted to the vehicle operating
conditions and the climate. A concentration
that is too high can lead to vehicle damage.
— Never add radiator anti-freeze or other addi-
tives to the washer fluid.
— Do not use a glass cleaner that contains
paint solvents, because this could damage
the paint.
Service interval display
The service interval display detects when your ve-
hicle is due for service.
The service interval display works in two stages:
— Inspection or oil change reminder: after driv-
ing a certain distance, a message appears in the
instrument cluster display each time the igni-
tion is switched on or off. The remaining dis-
tance or time is displayed briefly.
— Inspection or oil change due: if your vehicle
has reached an inspection or oil change interval
or both intervals at the same time, the mes-
sage Inspection due! or Oil change due! or Oil
change and inspection due! appears briefly af-
ter switching the ignition on or off.
Checking service intervals
You can check the remaining distance or time un-
til the next oil change or next inspection in the
Infotainment system.
Applies to MMI: Select on the home screen: VE-
HICLE > Settings & Service > Service intervals.
Resetting the indicator
An authorized Audi dealer or authorized Audi
Service Facility will reset the service interval dis-
play after performing service.
If you have changed the oil yourself, you must re-
set the oil change interval.
Applies to: MMI: To reset the display, select on
the home screen: VEHICLE > Settings & Service
> Service intervals.
@) Note
— Only reset the oil change indicator if the oil
was changed.
— Following the service intervals is critical to
maintaining the service life and value of
your vehicle, especially the engine. Even if
the mileage on the vehicle is low, do not ex-
ceed the time for the next service.
255

Page 271 of 332

AUDI A6 2021 Owner´s Manual 4K0012721BE

Wheels
Model/ Tire designation Tire pressure
Engine Normal load Maximum load
(up to 3 people)»
Front Rear Front Rear
PSI kPA PSI k

Page 301 of 332

AUDI A6 2021 Owner´s Manual 4K0012721BE

Fuses and bulbs

This can cause damage to the electrical sys-
tem and increases the risk of fire.
() Note
If a new fuse burns out again shortly after you
have installed it,

4K0012721BE

Fuses and bulbs

This can cause damage to the electrical sys-
tem and increases the risk of fire.
() Note
If a new fuse burns out again shortly after you
have installed it, have the electrical system
checked as soon as possible by an authorized
Audi dealer or authorized Audi Service Facili-
ty.
G@) Tips
— The following table does not list fuse loca-
tions that are not used.

— Some of the equipment listed in the follow-
ing tables applies only to certain model ver-
sions or certain optional equipment.
Fuse assignment - left footwell
Fuse panel @® (black)

4 |Engine components

S| Brake light sensor
6 |Engine valves
7 |Engine components
8 |Engine components
9 Engine components, 48 V water pump, 48
V drivetrain generator

10 | Oil pressure sensor, oil temperature sensor

Engine components, 48 V water pump, 48
11 |V drivetrain generator, 12 V drivetrain gen-
erator

12 | Engine valves, engine mount

13 | Engine cooling

14 | Engine control module, fuel injectors

Engine sensors, ignition coils, oxygen sen-
sors
15

RAZ-0195
ay
i
Toren
BARRIER P ala

Fig. 188 Left footwell: fuse panel with plastic clip
The fuse assignment @) and @) is in the opposite
order on right-hand drive vehicles.
16 | Fuel pump

Fuse panel (2) (red)
No. | Equipment
1 |Anti-theft alarm system
2 | Engine control module
3 | Left front lumbar support
5 |Horn
6 | Parking brake
7 | Diagnostic interface
8 |Roof electronics control module
9 | Driver assistance systems control module
10 | Airbag control module
iW Electronic Stabilization Control (ESC), An-
ti-Lock Braking System (ABS)

12 | Diagnostic connection, light/rain sensor

Climate control system, vehicle electrical
1
3 system control module

14 | Right front door control module

Fuse panel (@) (black)
No. | Equipment

Climate control system compressor, vehi-
15
cle electrical system control module

Catalytic converter heating
Auxiliary battery control module, brake
16 ;
system pressure reservoir

2 |Engine components

Engine components

299

Page 302 of 332

AUDI A6 2021 Owner´s Manual Fuses and bulbs

Fuse panel @) (red) (
No. | Equipment 9 |Adaptive cruise assist, front wheel sensors
1 | Engine ignition coils 11 Intersection assistant

Page 320 of 332

AUDI A6 2021 Owner´s Manual Index

Drives
refer to Media.............000 eee 220, 223
Drive select
refer to Audi drive select............... 112
Drive systeM..... ee eee eee ee ee 103,105
Audi drive Select s cso 2 ¢ caw

Index

Drives
refer to Media.............000 eee 220, 223
Drive select
refer to Audi drive select............... 112
Drive systeM..... ee eee eee ee ee 103,105
Audi drive Select s cso 2 ¢ cawe 2 2 gence a ee 112
Driving down hills...............-0.00- 109
DriVinig Program. ¢ «mas xc ees + cess 99, 146
Driving through water............-..005 110
Driving time... 6... eee eee eee 17
Driving tips
Driving through water................- 110
Efficientdriving
¢ wuss « ¢ cows se cows xe ea 103
Offroad driving............. cee eee eee 110
Uphill and downhill................00. 109
Driving track. . 22... . ee eee eee eee 109
Drivinguphills................02..000. 109
DVDEARIVG is 1 3 cosnees «x cemeeas =o sammate = x amemens © © 221,
Dynamic all-wheel steering.............. 115
E
Esmaibesw 2 man ao mace a 2 oman a 2 ene oe eer 190
Settings.......... 0.0.0 c eee eee eee 190
EDL
refer to Electronic Differential Lock...... 117
EDR
refer to Event Data Recorder (EDR)...... 303
EfficieieyASSiStw: ¢ x sawa 5 2 waren sx mewn ge 136
Predictive Comtroleccine ss ansin < seein ev aanev 142
Electrical system ........-.-- 02 eee ee eee 251
Electromechanical parking brake......... 107
Electronic Differential Lock.............. 117
Electronic immobilizer.............000005 40
Electronic Stabilization Control........... L17
Embedded SIM card..............000008 193
EMergency*assist crocs oo: szenase © suetece « 0 sues 158
Emergency assistance seins ss soa + ciaseas a 6 i 286
Emergency braking function............. 108
Emergency call..............----- 188, 197
Emergency flashers............. eee eeeee 56
Emergency mode.........--.eeeeeeeeee 102
Emergency operation
DOOMS «= zavee ¢ = ems 2 eg see gs Sees 38
Fulfil do or es « eras 1 v wnausr i a wrens a ase 241
318
Luggage compartment lid............... 45
Panoramic glass roof............0e ee eee 49
Emissions control system..............- 241
ENergy CONSUMERS is 2s cree 2 areca eo aero os 17
Energy Managements « s ecw 6 waves wv viscous 104
Engine
Breakingin...........- ee eee eee e eee ee 103
GOOlSMit : seus i < saae 2 5 eee 2 Ree 2 eS 249
Emergentey Stopis: «= cow 6 sews v women sv oe 96
Jump starting. ........ 0... cee eee eee 293
Start/Stop system............-0000005 104
Starting/stopping.................008- 96
Engine compartment
Opening and closing the hood.......... 243
Overview... ... 0... eee eee eee 245
Safety precautions.................... 242
Engine data
refer to Sport displays.................. 16
Engine oil
AGGING « cvairers & avairane s H aamave © o revere & e ereree 245
Changing.......... 2. e eee eee eee eee 248
Checking oillevel.. s «eas ss news se news se 245
CONSUMPEOM ives «x asco vx sommes woo sues ow on 245
Indicator light.............0. ee eee 246
Replacement interval................. 255
Temperature display.............0.00.. 15
Engine sound
Audi drive:select:. . vsccon co ese ee mare ewe 113
Engine:startisystem siisces « ncena s © wassoe o 2 eas 97
Engine stop
refer to Start/Stop system............. 104
Entry/exit lighting................-. eee 56
Entry assiStance:. « 6 sees so ears ve wnvers 0 owe 67
also refer to Exit assistance............. 67
Environment
Unleaded gasoline..............2.-00. 238
ESC
refer to Electronic Stabilization Control... 117
ESC OFGaG wees 5 2 awons ¥ a eG 4d EEG a Re L1y
ESC SPOfitecs « s sews x = eaues ¥ cee Fe eee 117
eSIM
refer to Embedded SIM card............ 193
Event Data Recorder (EDR) « ex.s se cena sv 303
EXiti@SsiStance « sass 3 « neue ¢ 5 hewn eee es 67
Exit warning ..... 00. e cece ee eee eee 156
Exterior antenna...............0.0000. 184

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