2021 AUDI A8 battery capacity

4N0012721BF
Touch displays

— The system complies with United States FCC
regulations and ISED regulations
=> page 341.
Applies to: vehicles with Rear Seat Remote
a
=.
S
Fig. 18 Rear Seat Remote: overview
a] g
| = <
ic


@ Microphone
@ Volume button (decrease/mute)
@®) Volume button (increase)
@ Speaker
©) Display
Using the holder

Applies to: vehicles with Rear Seat Remote

[RAH-9144)

Fig. 19 Rear center armrest/full-length center console:
Rear Seat Remote holder

Depending on the equipment, the Rear Seat Re-
mote may be located in the rear center armrest
or on the full-length center console.
Removing the Rear Seat Remote
> To release the Rear Seat Remote, press the A
button @.
> Remove the Rear Seat Remote from the holder
using both hands > A\ in Introduction on
page 26.
Securing the Rear Seat Remote
> Hold the Rear Seat Remote in both hands so
that the volume buttons @) and @) > page 27,
fig. 18 face upward.
> Carefully press the Rear Seat Remote toward
the holder until the Rear Seat Remote locks in-
to place.
Charging the battery
Applies to: vehicles with Rear Seat Remote
Requirement: the ignition must be switched on.
> To charge the battery, secure the Rear Seat Re-
mote in the holder > page 27. The battery will
charge automatically.
G) Note
The Rear Seat Remote battery is permanently
installed and may only be replaced by an au-
thorized Audi dealer or authorized Audi Serv-
ice Facility. If the battery replacement is not
done correctly, it may cause malfunctions and
increase the risk of damaging the Rear Seat
Remote.
@) Tips
— Batteries have a limited service life. If the
operating time decreases significantly, the
battery should be replaced. Contact an au-
thorized Audi dealer or authorized Audi
Service Facility if you need a new battery.
— The Rear Seat Remote is equipped with an
intelligent battery management system to
provide a long battery service life. There-
fore, the battery may not be charged to its
full capacity, especially when temperatures
are high or low.
27

High-voltage system


Charging method Charging cable

Charge with household and industrial alternat-
ing current (AC) sockets
Audi e-tron compact charging system > page 140

Charge at public alternating current (AC) charg-
ing stations

Charging station cable

Audi recommends using alternating current (AC)
to charge the high-voltage battery at industrial
sockets, charging stations, or a wallbox. This will
allow you to achieve higher efficiency and a con-
siderably shorter charging time when compared
to charging with a household socket.
Only charge at household sockets with the
Audi e-tron compact charging system under spe-
cial circumstances when it is not possible to
charge at an industrial alternating current (AC)
socket or at a public alternating current (AC)
charging station.
High-voltage batteries age over time, which re-
duces the available range. High-voltage batteries
can also age because of how they are used: fre-
quently charging the high-voltage battery com-
pletely accelerates the aging of the battery and
reduces the available range.
Charging time
The duration of the charging process may vary
based on the following factors:
— Sockets being used (household or industrial
sockets)
— Country-specific system voltage, current
strength and number of available phases
— Household connection
— The value set for the charging power level on
the Audi charging system control unit
— Fluctuations in the system voltage
— The temperature outside the vehicle
— The temperature of the high-voltage battery
and the Audi charging system control unit.
— Settings for the climate control inside the vehi-
cle
— Current capacity of the charging connector
— Whether the ignition is on or off
132
Tae ela)
Applies to: vehicles with plug-in hybrid drive

ZA WARNING
Short circuiting, electric shock, explosions,
fire, and severe burns can result from charg-
ing the battery incorrectly (for example by
disregarding general safety precautions, using
unsuitable or damaged sockets and charging
cables, or charging with unsuitable electrical
equipment) and can lead to serious and fatal
injuries.
— Do not charge using sockets/electrical
equipment that is clearly damaged or instal-
led incorrectly.
— Never use charging equipment that is clearly
damaged and/or dirty. Check the charging
equipment for damage before every use.
— Never modify or repair any electrical compo-
nents, especially the high-voltage system.
— Never charge in areas at risk for explosions.
The components in the charging equipment
can trigger sparks, which can cause flamma-
ble or explosive fumes to ignite. To reduce
the risk of explosions, especially in garages,
make sure the Audi e-tron charging system
control unit is at least 19 inches (50 cm)
above the floor when charging.
— Never use the charging equipment with an
extension cord, a cable reel, a power strip,
or an adapter, for example, a travel adapter
or timer.
— Do not touch the contacts on the vehicle
charging port or charging equipment.
— Do not insert any objects in the vehicle
charging port or in the charging equipment.
— Always protect the sockets and connections
from water, moisture and other fluids.
— Only use the charging equipment provided
by the factory or the charging station cable.

4N0012721BF

High-voltage system

g or attac g the cable
icles with Audi charging system

Applies to:


B4G-0681 Nn?

— Only change cables in a dry environment.
— The Audi charging system may only be used
as a complete unit consisting of the power
cables, the control unit, and the vehicle ca-
ble. Depending on the country, the total
length of the power cable, control panel and
vehicle cable may be restricted, for example
to 24.6 feet (7.5 m) in the USA. Audi recom-



Fig. 106 Control unit: removing and attaching the cable
Requirements:
> The charging process for the high-voltage bat-
tery must be ended > page 135.
> The vehicle charging connector must be re-
moved from the vehicle charging port.
> The power cable must be removed from the
socket.
Loosening the cable
» If necessary, loosen the screw @) using the
screwdriver provided.
> Lift the lever @ all the way up.
> Pull the connector @) out just until you feel re-
sistance.
> Close the lever @ until it is resting on the con-
nector @).
» Remove the connector (2) completely.
Attaching the cable
> Lift the lever @ up slightly.
> Insert the connector (2) into the control unit
just until you feel resistance.
> Lift the lever @ all the way up.
> Insert the connector (2) all the way into the
control unit.
> Close the lever @).
> Tighten the screw @) using the screwdriver pro-
vided.

A WARNING
— Note the warnings for charging > A in
Charging on page 135.
— Before switching a cable, always unplug the
power cable from the socket.

mends using only cables approved by Audi.
Gi) Tips
The power cable with the power connector for
industrial sockets and the Audi charging sys-
tem control unit are designed to work togeth-
er. Changing the power cable to another con-
nector type may reduce the available charging
power of the entire system. Limitations on
the ability to transfer power (current capacity)
depending on the phase and the number of
available phases may affect the available
charging power.


Wall clip
Applies to: vehicles with plug-in hybrid drive and wall mount
clip

RAZ-0638,


Fig. 107 Wall mount clip: securing the Audi charging sys-
tem
Securing the Audi charging system
> First insert the control unit in the bottom tabs
on the wall mount clip and then into the upper
tabs.
> Push the control unit in the direction of the ar-
row toward the rear > fig. 107 and let it lock in-
to place.
> Wrap the excess length of cable around the
charging connector mount @) when you are not
charging the high-voltage battery.
145

>

4N0012721BF
Checking and Filling

> Close the cover on the positive terminal.
> Close the hood > page 276.

ZA WARNING
— Never connect a charging cable or jump
start cable directly to the 12 Volt vehicle
battery. Only use the connections in the en-
gine compartment > page 286.
— A highly explosive mixture of gases can form
when charging batteries. Only charge the
battery in well-ventilated areas.
— A drained battery can freeze at tempera-
tures around 32 °F (0 °C). Do not charge or
use a frozen or thawed battery. If ice forms,
the battery housing can crack and battery
electrolyte can leak out, which increases the
risk of an explosion and chemical burns.
Contact an authorized Audi dealer or author-
ized Audi Service Facility for more informa-
tion.
— Do not connect or disconnect the charging
cable while charging because this increases
the risk of an explosion.

@) Tips
Read all of the manufacturer's instructions
for the charger before charging the battery.
Windshield washer
system

B4M-0135)

Fig. 186 Engine compartment: washer fluid reservoir cap
Observe the safety precautions > page 274, Gen-
eral information.
The windshield washer reservoir <> contains the
cleaning solution for the windshield and the
headlight washer system* > fig. 186,
= page 277. The reservoir capacity can be found
in > page 344.
To reduce the risk of lime scale deposits on the
spray nozzles, use clean water with low amounts
of calcium. Always add window cleaner to the wa-
ter. When the outside temperatures are cold, an
anti-freezing agent should be added to the water
so that it does not freeze.
Messages
|} Please add washer fluid
Fill the washer fluid for the windshield washer
system and the headlight washer system* when
the ignition is switched off.
CG) 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.
287

4N0012721BF
Emergency assistance

To benefit fully from the advantages of the uni-
directional tire design, you should replace faulty
tires as soon as possible and restore the correct
running direction on all of the tires.
> Reinstall the caps on the wheel bolts if necessa-
ry.
> Store the vehicle tool kit in its designated
place.
> If the removed wheel does not fit in the spare
wheel well, store it securely in the luggage
compartment > page 97.
> Check the tire pressure on the installed wheel
as soon as possible.
> Correct the tire pressure and store it in the MMI
=> page 308.
> The wheel bolt tightening specification must be
90 ft lbs (120 Nm). Have it checked as soon as
possible with a torque wrench. Drive carefully
until then.
> Have the faulty wheel replaced as quickly as
possible.
Space-saving spare tire
Applies to: vehicles with space-saving spare tire (compact
spare tire)
The spare tire is intended for short-term use only.
Have the damaged tire checked and replaced if
necessary by an authorized Audi dealer or author-
ized Audi Service Facility as soon as possible.
There are some restrictions on the use of the
compact spare tire. The compact spare tire has
been designed specifically for your type of vehi-
cle. Do not replace it with the spare tire from an-
other type of vehicle.
The compact spare tire is located in the luggage
compartment under the cargo floor cover
=> page 317.
The tire pressure must be adjusted to a specified
value listed on the tire pressure sticker
=> page 299, fig. 190.
Snow chains
For technical reasons, the use of snow chains on
the compact spare tire is not permitted.
If you have to drive with snow chains and a front
tire fails, mount the spare tire in place of a rear
tire. Install the snow chains on the rear tire that
you removed, and install that in place of the
front tire that failed.

ZA WARNING
— After installing a spare tire, the tire pressure
must be checked as soon as possible.
— Do not drive faster than 50 mph (80 km/h)
with a compact spare tire. Driving faster
than that increases the risk of an accident.
— To reduce the risk of an accident, avoid hard
acceleration or braking and driving fast
around curves with the compact spare tire.
— To reduce the risk of an accident, never drive
with more than one compact spare tire.
— Normal summer or winter tires must not be
mounted on the compact spare wheel rim.

Jump starting
You should only perform the steps that follow if
you have the necessary tools and technical ex-
pertise.
If the engine does not start because the vehicle
battery is drained, you can jump start your vehi-
cle using another vehicle. Jump start cables are
needed to do this.
Both vehicle batteries must have 12 V nominal
voltage. The voltage capacity (Ah) of the vehicle
battery that is giving power must not be less
than the capacity of the drained vehicle battery.
Jump start cable
Only use a jump start cable with a large enough
diameter. Note the manufacturer's specifica-
tions.
Only use a jump start cable with insulated termi-
nal clamps.
Positive cable - usually red.
Negative cable - usually black.
323

Index


Vehicle jacks. « sie sc emcee e eww oe em ves 317
Lifting points...... 2.0.0... eee eee eee 321
Tire change Mode.... 1... eee eee sees 319
VehIClE Keys ¢ « sas x = heen ¢ o hake oP eee 41,45
Vehicle Sound... . 6... cece eee eee eee 116
Vehicle start systeM.... 2.2.0.2... eee 118
Vehicle toolkit... 0.0... 0... eee eee eee 317
VeMEILAtIOMS, « 6 cess « cnennic = 1 cena a @ ammo wa 100
VIEW DUBE OMI + 3 seco © x saouawe 2 x cameo osama oo 13
Voiceriiaibs «2 viciine 2 x owas eo snvem 2 x amin 0 3 a 217
Voice recognition system ..............065 34
BxXHOE Maly escse = mucana we wweanan x execone 6 x ena 35
Operating ....... 0... ccc eee eee eee ee 34
WwW
Wall mount clip...........0... ce eee eee 145
Warning lights
refer to Indicator lights.................. 7
Washing matte finish paint.............. 310
Wave band
refer to Frequency band............... 242
Weights ........... 0.0 cece eee eee ee 344
Wheel bolts............ 000 c cece 304
ANti-Cheft cas s nuwa & s Been & + eRS oe Sew 320
Tightening specification............... 323
Wheels x isasis a i snniss o a nauasa s & aninass wo eomnene @ 289
Cleaning 312
Glossary of tire and loading terminology.. 292
Loose wheel warning.................. 304
REPIAGIG s sxannce » seanens oo eee co sien oe o ete 319
Tire pressure monitoring system........ 308
Tires and vehicle load limits............ 302
Wheel wrench’: « seas: s + gem « x sewn 2 2 seme 317
Wi-Fi
Hotspot:settings:s. ss wie a 6 owen ae aie a 225
Using ahotspot................--000- 223
Wild animal recognition................ 159
Window and mirror heating............. 105
Windows
Child safety lock.............02-000000- 51
Cleaning and removingice............. 312
Convenience opening and closing......... 53
Defrosting ........-. 600 c eee eee eee 102
Opening and closing................... 52
POWEPWINdOWSins « 2 caves x s waves 4s eaure 4 es 52
358
Windshield
Cleaning..... 22.2... cece eee eee eee 66
also refer to Windshield................ 66
Windshield washer system..........- 66, 287
Reservoir capacityies « + sass +o wesw + 3 meen 344
Windshield wipers.................00-0- 66
Winter operation
Auxiliary climate control............... 104
Car washes ....... 0.0.00 cece cece 310
COGLIFG SYSTEM: « 2 wees s x eee ss meee ese 281
Defrosting the windows............... 102
Rear window defogger................ 102
Removing ice from windows............ 312
Seat heating. « = scr. sa wee. a eee @ © wees 102
Snow chains............ 00sec eens 305
Steering wheel heating................ 104
Surface heating «wees «sees se ewes a 4 ear 103
THRCSiis so ceontens 6 sccrees +o onemeite aw oman © 9 oom 305
Vehicle battery (12 Volt)............... 285
Windshield washer system............. 287
WINEEPEIRES 2 osu 5 ¢ ean so mem a yeaa ee 305
Wireless Apple CarPlay
refer to Audi smartphone interface...... 261
Wireless charging...............+-+05- 213