tow AUDI E-TRON 2021 Service Manual

4KE012721BF
Driver assistance

The same messages apply for the exit warning
system and side assist > page 162.
Switching the exit warning on and off
— The system can be switched on and off in the
MMI & page 132.

ZA WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 129.
— Always pay attention to traffic and to the
area around your vehicle. The exit warning
system does not replace the attention of the
vehicle occupants. The vehicle occupants are
always responsible for opening the doors
and exiting the vehicle.
— The exit warning system does not respond
to people and cannot warn you about every
type of approaching objects, such as cyclists.
Always monitor the traffic as well as the ve-
hicle's surroundings with direct eye contact.
— The display may not appear in time when
vehicles are approaching very quickly.
— The exit warning system does not react to
stationary objects or pedestrians.
— The exit warning system will not provide
alerts if your vehicle is pulled too far into
the parking space so that it is hidden by ad-
jacent vehicles.

G) Tips
— The exit warning system can be available for
up to approximately three minutes after un-
locking the vehicle and opening the door as
well as after switching off the ignition. Then
the displays flash briefly and the system
switches off.
— The system is not available when towing a
trailer. There is no guarantee the system
will switch off when using a retrofitted trail-
er hitch. Do not use these functions when
towing a trailer.
— The coverage areas of the sensors > fig. 115
are diagrams and do not represent a true-
to-scale image of the sensor ranges.
— The system complies with United States FCC
regulations and ISED regulations
> page 288.
Intersection assistant
Applies to: vehicles with intersection assistant
eo a oS
9 S| % oO
RAH-9247

Fig. 118 Instrument cluster: directional display from the
intersection assistant
General information
The intersection assistant can warn the driver of
approaching cross traffic in complex intersections
> fig. 117.
The system monitors intersections and exit
ramps using the sensors installed in the vehicle
that detect the front and side areas around the
vehicle. Moving objects that are approaching
from behind, such as cars, are detected within
the limits of the system > A\. The system can al-
so warn the driver of a potential collision with de-
tected approaching cross traffic in intersections
and exit ramps with poor visibility.
163
>

Parking and maneuvering

Error messages
If P& appears, the sensor in the respective area
or the speaker is faulty. Drive immediately to an
authorized Audi dealer or authorized Audi Service
Facility to have the malfunction repaired.
If Av is displayed in the MMI, the ultrasonic sen-
sor indicated is icy or dirty. Clean the area in front
of the sensors > page 131.
iff or fa is displayed when there is a malfunc-
tion, the parking aid functions may be unavaila-
ble or may be limited.
A message that indicates the cause and possible
solution may appear with some displays. The
weather conditions may be too poor or a sensor
may be covered. Clean the area in front of the
sensors > page 131 and try to turn the system on
again later.
If the malfunction remains, drive to an author-
ized Audi dealer or authorized Audi Service Facili-
ty immediately to have the malfunction correct-
ed.

ZX WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 129.
— Sensors and cameras have spots in which
the surrounding area cannot be detected.
Objects, animals, and people may only be
detected with limitations may not be detect-
ed at all. Always monitor the traffic and the
vehicle's surroundings directly and do not
become distracted.



@) Note
Keep enough distance from the curb to avoid
damage to the rims.
G) Tips
— The side area > page 130, fig. 90 is detect-
ed and evaluated when passing. There may
have been changes to the surrounding area
after switching the ignition off and on
again, after opening the doors, or if the ve-
hicle is left stationary for a period of time.
168
In this case, the area will appear black until
the area has been detected and evaluated.
— If the distance to an obstacle remains con-
stant, the volume of the distance warning
gradually lowers after a few seconds until it
is muted (this does not apply to the continu-
ous tone). If the obstacle comes closer than
it was before the sound was muted, the
tone will sound again. If the obstacle be-
comes farther away than it was before the
sound was muted, no tone will sound. Pay
attention to the vehicle's surroundings
when you start to drive.
— There is no distance warning for the rear
and the sides when trailer towing mode is
detected. The front sensors remain activat-
ed. There is no guarantee the functions will
be deactivated when using a retrofitted
trailer hitch.
Rearview camera and
peripheral cameras
Introduction
Applies to: vehicles with rearview camera/peripheral cameras

B8V-0629

Fig. 121 Orientation line display when parking
Depending on the vehicle equipment, a rearview
camera or multiple peripheral cameras may be
available.
The rearview camera helps you to park or maneu-
ver using the orientation lines.
The peripheral cameras expand the vehicle over-
view to include various views around the vehicle
that can be selected.

Parking and maneuvering

@ Use the blue markings to help you estimate
the distance to an obstacle. Each marking
represents approximately 3 feet (1 meter).
The blue area represents an extension of the
vehicle's outline by approximately 16 feet (5
meters) to the rear.
@® You can recognize the rear bumper in the
lower display.
@ You should stop driving in reverse when the
red orientation line touches the edge of an
object, at the latest.
Trailer view
Applies to: vehicles with trailer view
The trailer view > fig. 124 assists you in position-
ing the vehicle in front of a trailer.
— Applies to: vehicles with peripheral cameras:
Switch to the Rear view > page 171, fig. 125.
— Select || > Trailer view in the upper display
when the parking aid is active.


Now you can position your vehicle in front of the
trailer. The orange orientation line ©) > fig. 124
indicates the expected path toward the trailer
hitch. Use the blue markings © to help you esti-
mate the distance to the trailer hitch. Each mark-
ing represents approximately 1 foot (0.30 me-
ters). The width of the blue surface represents
the maximum steering wheel angle.
Symbols
If 2/&9/< is displayed and the display area
represented by that symbol is not available, then
the camera on the that side is not available. The
power exterior mirrors may have been folded in
or a door or the luggage compartment lid may
have been opened.
If # is displayed, there is a system malfunction
and the display area represented by that symbol
is not available. The camera is not working in this
area.
If Avis displayed, the respective ultrasonic sensor
is icy or dirty. Clean the area in front of the sen-
sors > page 131.
If one of the symbols continues to be displayed,
drive immediately to an authorized Audi dealer or
170
authorized Audi Service Facility to have the mal-
function repaired.

ZA\ WARNING
— Observe the safety precautions and note the
limits of the assist systems, sensors, and
cameras > page 129.
— Sensors and cameras have spots in which
the surrounding area cannot be detected.
Objects, animals, and people may only be
detected with limitations may not be detect-
ed at all. Always monitor the traffic and the
vehicle's surroundings directly and do not
become distracted.

@) Note
— The orange orientation lines @ show the di-
rection the rear of the vehicle will be travel-
ing, based on the steering wheel angle. The
front of the vehicle swings out more than
the rear of the vehicle. Maintain plenty of
distance so that an exterior mirror or a cor-
ner of the vehicle does not collide with any
obstacles.
— Keep enough distance from the curb to
avoid damage to the rims.
— Only use the images provided by the camera
on the rear of the vehicle when the luggage
compartment lid is completely closed. Make
sure any objects you may have mounted on
the luggage compartment lid do not block
the rearview camera.
G) Tips
— Applies to vehicles with air suspension: The
accuracy of the orientation lines and blue
surfaces on the camera display decreases
when the vehicle is raised or lowered with
the air suspension.
— There is no distance warning for the rear
and the sides when trailer towing mode is
detected. The front sensors remain activat-
ed. The visual display switches to trailer
mode. There is no guarantee the functions
will be deactivated when using a retrofitted
trailer hitch.

Parking and maneuvering


your vehicle is pulled too far into the park-
ing space so that it is hidden by adjacent
vehicles.

iG) Tips
— Once an automatic brake activation occurs,
the system cannot initiate another activa-
tion for several seconds.
— System functions may not be available if the
ESC is limited or switched off, or if there is a
malfunction.
— If there is an acoustic warning signal from
the rear cross-traffic assist, then the park-
ing aid may not warn you of detected obsta-
cles under certain circumstances.
— The system is not available when the vehicle
detects that you are towing a trailer. There
is no guarantee the functions will be deacti-
vated when using a retrofitted trailer hitch.
Do not use these functions when towing a
trailer.
— The coverage areas of the sensors > fig. 126
are diagrams and do not represent a true-
to-scale image of the sensor ranges.
— The system complies with United States FCC
regulations and ISED regulations
> page 288.
174

4KE012721BF
Checking and Filling

Col kel mel nator Tadnat-lal ae) lav (7
The most important check points.




Fig. 151 Reservoir locations
Observe the safety precautions > page 233, Gen-
eral information.
@ Washer fluid reservoir (>) > page 239
@ Coolant expansion tank (-£) under a cover
=> page 236
@® Brake fluid reservoir (O) under a cover
=> page 236
Cooling system
The cooling system is filled with a mixture of pu-
rified water and coolant additive at the factory.
This coolant must not be not changed.
The coolant level is monitored using the BB indi-
cator light. However, you should occasionally
check the coolant level.

[RAZ-0572


Messages
| Turn off engine and check coolant level. See
owner's manual
The coolant level is too low.
Do not continue driving and switch the ignition
off. Add coolant. The vehicle must not be towed.
See an authorized Audi dealer or authorized Audi
Service Facility for assistance.
Electric drive: malfunction! Cooling system.
Please contact Service
There is a malfunction in the cooling system.
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately.
©) Note
Before winter weather begins, have an author-
ized Audi dealer or authorized Audi Service
Facility check if the coolant additive in your
vehicle matches the percentage appropriate
235
>

Checking and Filling

for the climate. This is especially important
when driving in colder climates.
Coolant level

Fig. 152 Motor compartment: coolant expansion tank
Observe the safety precautions > page 233, Gen-
eral information.
Checking the coolant level
>» Park the vehicle on a level surface.
> Switch the ignition off.
> Open the hood = page 234.
The coolant expansion tank is located in the ple-
num chamber under a cover. Slide the cover that
is located below the windshield wipers on the
front passenger's side toward the windshield and
remove the cover > page 235, fig. 151.
> Read the coolant level on the floating gauge for
the expansion tank without opening the cap.
The coolant level must be between the Min and
Max markings when the coolant is cold
> fig. 152
> vi turns on, do not continue driving
=> page 235.
> If the coolant level is just over the Min marking,
drive to an authorized Audi dealer or authorized
Audi Service Facility immediately.
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.

ZA WARNING
— The motor compartment in any vehicle is a
potentially dangerous area. Before perform-
ing work in the motor compartment, switch

236

the ignition off and allow the cooling system
to cool down. Always follow the information
found in > page 233, General information.
— Never open the hood if you can see or hear
steam or coolant escaping from the motor
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 motor
compartment with caution.
— The coolant expansion tank may only be
opened and filled by an authorized Audi
dealer or authorized Audi Service Facility.
— The coolant expansion tank cap is equipped
with a seal that must never be removed un-
der any circumstances > page 236. If the
coolant expansion tank is not sealed, con-
tact an authorized Audi dealer or authorized
Audi Service Facility.
—When adding coolant, it may leak into the
inside of high-voltage components and
cause a short circuit, increasing the risk of
fire.
— 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.

Brake fluid

BFV-0229|


Fig. 153 Motor compartment: cap on brake fluid reservoir
Observe the safety precautions > page 233, 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.

Wheels

position and the total weight of
any luggage in the vehicle. If you
tow a trailer, the weight of the
trailer hitch and the tongue
weight of the loaded trailer must
be included as part of the vehicle
load.
The Gross Axle Weight Rating
(“GAWR”) is the maximum load
that can be applied at each of the
vehicle’s two axles.
The fact that there is an upper
limit to your vehicle’s Gross Vehi-
cle Weight Rating means that the
total weight of whatever is being
carried in the vehicle (including
the weight of a trailer hitch and
the tongue weight of the loaded
trailer) is limited. The more pas-
sengers in the vehicle or passen-
gers who are heavier than the
standard weights assumed mean
that less weight can be carried as
luggage.
The Gross Vehicle Weight Rating
and the Gross Axle Weight Rating
are listed on the safety compli-
ance sticker label located on the
driver’s side B-pillar.
254


Z\ WARNING
Overloading a vehicle can cause
loss of vehicle control, a crash
or other accident, serious per-
sonal injury, and even death.
—Carrying more weight than
your vehicle was designed to
carry will prevent the vehicle
from handling properly and in-
crease the risk of the loss of
vehicle control.
—The brakes on a vehicle that
has been overloaded may not
be able to stop the vehicle
within a safe distance.
—Tires ona vehicle that has
been overloaded can fail sud-
denly, including a blowout and
sudden deflation, causing loss
of control and a crash.
—Always make sure that the to-
tal load being transported -
including the weight of a trail-
er hitch and the tongue
weight of a loaded trailer -
does not make the vehicle
heavier than the vehicle’s
Gross Vehicle Weight Rating.

4KE012721BF
Wheels

Determining correct load
Talis
Use the example below to calcu-
late the total weight of the pas-
sengers and luggage or other
things that you plan to transport
so that you can make sure that
your vehicle will not be overload-
ed.
Steps for Determining Correct
Load Limit
1. Locate the statement “THE
COMBINED WEIGHT OF OCCU-
PANTS AND CARGO SHOULD
NEVER EXCEED XXX KG OR XXX
LBS” on your vehicle’s placard
(tire inflation pressure label)
=> page 251, fig. 158.
2. Determine the combined
weight of the driver and pas-
sengers that will be riding in
your vehicle.
3. Subtract the combined weight
of the driver and passengers
from “XXX” kilograms or “XXX”
pounds shown on the sticker
=> page 251, fig. 158.
4. The resulting figure equals the
available amount of cargo and
luggage load capacity. For ex-
ample, if the “XXX” amount
equals 1400 lbs. and there will
be five 150 lbs. passengers in
your vehicle, the amount of
available cargo and luggage
load capacity is 650 lbs.
(1400-750 (5 x 150) = 650
lbs.)
5. Determine the combined
weight of luggage and cargo
being loaded on the vehicle.
That weight may not safely ex-
ceed the available cargo and
luggage load capacity calculat-
ed in Step 4.
6. If your vehicle will be towing a
trailer, load from your trailer
will be transferred to your vehi-
cle. Consult this manual to de-
termine how this reduces the
available cargo and luggage
load capacity of your vehicle.
>Check the tire sidewall
(=> page 242, fig. 155) to deter-
mine the designated load rating
for a specific tire.
Wheel bolts and rims
Wheel bolts
Wheel bolts must be clean and loosen/tighten
easily.
Rims
Rims with a bolted rim ring* or with bolted wheel
covers* consist of multiple pieces. These compo-
nents were bolted together using special bolts
and a special procedure. You must not repair or
disassemble them > A\.
255
>

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Care and cleaning

Care and cleaning
General information
Regular, proper care helps to maintain your vehi-
cle's value. It can also be a requirement when
submitting warranty claims for corrosion damage
and paint defects on the body.
The required cleaning and care products can be
obtained from an authorized Audi dealer or au-
thorized Service Facility. Read and follow the in-
structions for use on the packaging.

ZA\ WARNING
— Using cleaning and care products incorrectly
can be dangerous to your health.
— Always store cleaning and care products out
of reach of children to reduce the risk of poi-
soning.

@ For the sake of the environment
— Purchase environmentally-friendly cleaning
products if possible.
— Do not dispose of cleaning and care prod-
ucts with household trash.
Car washes
The longer that deposits such as insects, bird
droppings, tree sap or road salt remain on the ve-
hicle, the more the surface can be damaged. High
temperatures such as those caused by sunlight
increase the damaging effect.
Before washing, rinse off heavy deposits with
plenty of water.
Stubborn deposits such as bird droppings or tree
sap are best removed with plenty of water and a
microfiber cloth.
Also, wash the underside of your vehicle once
road salt stops being used for the season.
Pressure washers
When washing your vehicle with a pressure wash-
er, always follow the operating instructions pro-
vided with the pressure washer. This is especially
important in regard to the pressure and spraying
distance. Do not aim the spray directly at the
seals on the side windows, doors, hood, luggage
compartment lid, or sunroof*, or at tires, rubber
hoses, insulating material, sensors*, camera
lenses*, or the laser scanner*. Keep a distance of
at least 16 inches (40 cm).
Do not direct the washer stream toward the wall
mount clip*.
Do not remove snow and ice with a pressure
washer.
Never use cone nozzles or high pressure nozzles.
The water temperature must not be above 140 °F
(60 °C).
Automatic car wash
Spray off the vehicle before washing.
Make sure that the windows and roof* are closed
and the windshield wipers are off. Make sure that
the vehicle is still able to roll during the washing
process in the car wash. Follow instructions from
the car wash operator, especially if there are ac-
cessories attached to your vehicle.
If possible, use car washes that do not have
brushes.
Washing by hand
Clean the vehicle starting from the top and work-
ing downward using a soft sponge or cleaning
brush. Use solvent-free cleaning products.
Washing vehicles with matte finish paint by
hand
To reduce the risk of damaging the paint when
washing, first remove dust and large particles
from your vehicle. Insects, grease spots, and fin-
gerprints are best removed with a special cleaner
for matte finish paint.
Apply the product using a microfiber cloth. To re-
duce the risk of damaging the paint surface, do
not use too much pressure.
Rinse the vehicle thoroughly with water. Then
clean using a neutral shampoo and a soft micro-
fiber cloth.
Rinse the vehicle thoroughly again and let it air
dry. Remove any water residue using a chamois.
261
>

4KE012721BF
Care and cleaning




Component Situation Solution
Laser scanner Deposits Soft sponge with a mild soap solution®
Wheels Road salt Water
Brake dust Acid-free special cleaning solution
Decorative parts | Deposits Mild soap solution ®), a cleaning solution suitable for stain-
and
trim
less steel, if necessary

Paint Paint damage Repair with touch-up paint

Surface rust Rust remover, then treat with hard wax; for questions, con-
sult an authorized Audi dealer or authorized Audi Service
Facility.

Corrosion Have it removed by an authorized Audi dealer or authorized
Audi Service Facility.

Water no longer
beads on the surface
of clean paint
Treat with hard wax (at least twice per year)

No shine even though
paint has been pro-
tected/paint looks
poor
Treat with suitable polish; then apply paint protectant if
the polish that was used does not contain any protectant

Deposits such as in-
sects, bird droppings,
tree sap, and road
salt
Dampen with water immediately and remove with a micro-
fiber cloth

Grease-based con-
taminants such as
cosmetics or sunblock
Remove immediately with a mild soap solution ® and a soft
cloth

Carbon compo- __| Deposits clean the same way as painted parts > page 261
nents
Decorative decals | Deposits Soft sponge with a mild soap solution®
Audi e-tron Deposits Soft, dry towel
charging system
Wall mount clip | Deposits Soft towel with alcohol-free cleaning solution

a) Mild soap solution: maximum two tablespoons of
Interior cleaning
neutral soap in 1 quart (1 liter) of water


Component Situation Solution
Window glass Deposits Glass cleaner, then wipe dry
Decorative parts | Deposits Mild soap solution®
and
trim
Plastic parts Deposits Damp cloth



Heavier deposits Mild soap solution ®), detergent-free plastic cleaning solu-

tion, if necessary

263