2019 AUDI E-TRON service

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Checking and Filling

Checking and Filling
Motor compartment
General information
Special care is required if you are working in the
motor compartment
For work in the motor 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 motor compartment is a danger-
ous area in the vehicle. > A.

age component can result in a fatal electric
shock. The components in the high-voltage
system are marked with a warning label which
warns of the high-voltage.
— The voltage level in the high-voltage system
is still dangerous and potentially life-threat-
ening when the ignition is switched off.
— Never perform work on orange high-voltage
cables or on high-voltage components. Only
authorized repair facilities that are certified
may perform work on the high-voltage sys-
tem.


ZA WARNING
— Switch the ignition off.
— Set the parking brake.
— Select the “P” (Park) selector lever position.
— Keep children away from the motor com-
partment.
— Never spill operating fluids in the motor
compartment.
— Avoid short circuits in the electrical system.
— Never open the hood when there is steam or
coolant escaping from the motor compart-
ment, because there is a risk that you could
be burned. Wait until no steam or coolant is
escaping.
— Never open the cap on the coolant reservoir
if the coolant is hot. The cooling system is
under pressure.
— To protect your face, hands, and arms from
hot steam or coolant, cover the cap with a
thick cloth when opening.
— 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 chemicals to as short
a time as possible.

ZA 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.


ZA\ WARNING
The voltage in the high-voltage system is life-


threatening. Touching a damaged high-volt-

() Note
When filling fluids, be sure not to add any flu-
ids to the wrong reservoirs. Otherwise, severe
malfunctions and 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.
235

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Checking and Filling




[RAZ-0572



Fig. 158 Reservoir locations
Follow the safety precautions > page 235. The coolant level is too low.

1) Washer fluid reservoir (7) > page 241 Do not continue driving and switch the ignition
) Coolant reservoir (£-) under a cover off. Add coolant. The vehicle must not be towed.
> page 238 See an authorized Audi dealer or authorized Audi
(GB) @) Brake fluid reservoir (OC) under a cover
> page 239 Electric drive system: malfunction! Cooling
system. Please contact Service
Service Facility for assistance.
Cooli ng system There is a malfunction in the cooling system.
| Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately.


The cooling system is filled with a mixture of pu-

rified water and coolant additive at the factory. Coolant additive
This coolant must not be not changed. The coolant additive is made of anti-freezing and
Audi recommends checking the coolant level pe- corrosion protection agents. Only use the follow-
riodically. ing coolant additive:
Messages Coolant additive Specification

Gl12evo TL774L
| Electric drive system: malfunction! Cooling
system. Please contact Service The amount of coolant additive that needs to be
mixed with water depends on the climate where >

237

Checking and Filling

the vehicle will be operated. If the coolant addi-
tive percentage is too low, the coolant can freeze
and cause damage.



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

@) Note
— Before winter weather begins, have an au-
thorized Audi dealer or authorized Audi
Service Facility check if the coolant additive
in your vehicle matches the percentage ap-
propriate for the climate. This is especially
important when driving in colder climates.
— If the appropriate coolant additive is not
available in an emergency, do not add any
other additive. Using other additives in-
creases the risk of damage. If this happens,
only use water and restore the correct mix-
ture ratio with the specified coolant additive
as soon as possible.
— Only refill with new coolant.
— Radiator sealant must not be mixed with
the coolant.
Coolant level

Fig. 159 Motor compartment: coolant expansion tank
Follow the safety precautions > page 235, Gener-
al information.
Checking the coolant level
> Park the vehicle on a level surface.
> Switch the ignition off.
238
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 237, fig. 158.
> Read the coolant level on the floating gauge for
the expansion tank. The coolant level must be
between the Min and Max markings when the
coolant is cold > fig. 159
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. Mixing the coolant additive
with distilled water is recommended.
> Allow the coolant to cool down.
> Place a large, thick towel on the coolant expan-
sion tank cap.
> Unscrew the cap carefully to the left > A\.
> Add coolant with the correct mixture ratio
=> page 237 until the floater gauge reaches the
Max marking.
> Make sure that the fluid level remains stable.
Add more coolant if necessary.
> Screw on the cap securely to the right.
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.

Z\ WARNING
— The engine/motor compartment in any vehi-
cle can be a dangerous area. Switch the igni-
tion off and allow the cooling system to cool
down. Always follow the information found
in > page 235, 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.
— Coolant additive and coolant can be danger-
ous to your health. For this reason, store the |>

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Checking and Filling


coolant in the original container and away
from children. There is a risk of poisoning.


@) Note
— Do not add coolant if the expansion tank is
empty. Air could enter the cooling system
and increase the risk of damage. If this is
the case, do not continue driving. See an au-
thorized Audi dealer or authorized Audi
Service Facility for assistance.
— If coolant must be added multiple times
within two months, drive immediately to an
authorized Audi dealer or authorized Audi
Service Facility because there is a risk of
damage.
Brake fluid

BFV-0229|


Fig. 160 Motor compartment: cap on brake fluid reservoir
Follow the safety precautions > page 235, Gener-
al 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 237, fig. 158. The brake fluid lev-
el must be between the MIN and MAX markings
of.
The brake fluid level is monitored automatically.
Message
EG f) 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 Au-
di 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 =] / B or [ml indicator light turns on,
there is a malfunction in the power supply, the
battery, or the vehicle electrical system.
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Checking and Filling

= / B Electrical system: malfunction! Safely
stop vehicle
Do not continue driving and switch the ignition
off > A\. See an authorized Audi dealer or author-
ized Audi Service Facility for assistance.
= Electrical system: malfunction! Restart not
possible. Please contact Service
If you switch the ignition off, you will not be able
to restart the vehicle. Vehicle functions/driving
stability may be limited. Drive to an authorized
Audi dealer or authorized Audi Service Facility im-
mediately.
= Electrical system: malfunction! Please con-
tact Service
Switch off all electrical equipment that is not
needed. Vehicle functions/driving stability may
be limited. Drive to an authorized Audi dealer or
authorized Audi Service Facility immediately.
= Electrical system: low battery charge. Bat-
tery will be charged while driving
If this message turns off after a little while, the
vehicle battery has been charged enough by the
high-voltage battery while driving.
If this message does not turn off, drive immedi-
ately to an authorized Audi dealer or authorized
Audi Service Facility.

ZA\ WARNING
When there is an electrical system malfunc-
tion, vehicle functions may not work and driv-
ing stability may be limited, which increases
the risk of an accident. Do not continue driv-
ing and switch the ignition off. See an author-
ized Audi dealer or authorized Audi Service Fa-
cility for assistance.

Battery
Pela meee eles)
Because of the complex power supply, all work on
batteries such as disconnecting, replacing, etc.,
should only be performed by an authorized Audi
dealer or authorized Audi Service Facility > A\.
240
Batteries with different technologies are instal-
led in your vehicle:
— 12 Volt vehicle battery (for example, for basic
power supply) > page 241, 12 Volt vehicle bat-
tery
— High-voltage battery (for example, for electric
drive system, climate control) > page 104, In-
troduction
Not running the vehicle for long periods of
time
When the vehicle is not used for long periods, the
12 Volt vehicle battery will drain little by little. To
ensure that the vehicle can still be started, the
electrical equipment will be limited or switched
off. Some convenience functions, such as interior
lighting or power seat adjustment, may not be
available under certain circumstances. The con-
venience functions will be available again when
you establish drive ready mode.
Even when electrical equipment is switched off,
the equipment can still drain the 12 Volt vehicle
battery if the vehicle is not driven for long peri-
ods of time. Deep draining results in a chemical
reaction that destroys the inside of the battery.
To reduce the risk of this, the battery must be
charged monthly by an authorized Audi dealer or
authorized Audi Service Facility > page 241. Con-
tact an authorized Audi dealer or authorized Audi
Service Facility for more information.
Winter operation
Cold weather places an especially high load on
the 12 Volt vehicle battery. Have the battery
checked by an authorized Audi dealer or author-
ized Audi Service Facility before cold weather be-
gins.

ZA WARNING
All work on the battery or electrical system in
your vehicle can result in injuries, chemical
burns, accidents, or burns. Because of this, all
work must be performed only by an author-
ized Audi dealer or authorized Audi Service Fa-
cility. >

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Checking and Filling


ZA\ WARNING
California Proposition 65 Warning:
— 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
If the vehicle will be parked for long periods
of time, protect the 12 Volt vehicle battery
against the cold so that it will not “freeze”
and become damaged. Have the battery
charged by an authorized Audi dealer or au-
thorized Audi Service Facility > page 241,
Charging the 12 Volt vehicle battery.
12 Volt vehicle battery
Explanation of warnings:

Always wear eye protection.

Battery acid is highly corrosive. Always
wear protective gloves and eye protection.

forbidden.

A highly explosive mixture of gases can
A» form when charging batteries.

Always keep children away from battery
@) acid and the battery.

Always follow the instructions in the oper-
® Fire, sparks, open flame, and smoking are
@/
fQ | ating manual.

@) For the sake of the environment

» ¥ Do not dispose of lead batteries in
household trash. They contain harmful sub-
stances, such as sulfuric acid and lead, and al-
so recyclable raw materials. Contact an au-
thorized Audi dealer or authorized Audi Serv-
ice Facility for more information.
Charging the 12 Volt vehicle battery
The vehicle cannot be operated when the 12 Volt
vehicle battery is drained. The vehicle battery
must not be charged under any circumstances.
Contact an authorized Audi dealer or authorized
Audi Service Facility.
() Note
The charging of the vehicle battery requires
specialized knowledge and technology.
— The vehicle battery may only be charged by
an
authorized Audi dealer or authorized Au-
di Service Facility. Otherwise, the electronic
systems in the vehicle may be severely dam-
aged.
— The jump start pins in the motor compart-
ment are designed specifically for qualified
technicians.
Windshield washer
system

B4M-0135)


Fig. 161 Motor compartment: washer fluid reservoir cap
Follow the safety precautions > page 235, Gener-
al information.
The windshield washer fluid reservoir contains
the cleaning solution for the windshield and the
headlight washer system > fig. 161, > page 237.
The reservoir capacity can be found in
=> page 291.
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
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Checking and Filling

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 reminder: after driving a certain
distance, a message appears in the instrument
cluster display each time the ignition is switch-
ed on or off. The remaining distance or time is
displayed briefly.
— Inspection due: if your vehicle has reached an
inspection interval, the message Inspection
due! appears briefly after the ignition is switch-
ed on and off.
Checking service intervals
You can check the remaining distance or time un-
til the next service.
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.
@) Note
Adhering to the service intervals is critical to
maintaining the service life and value of your
vehicle. Even if the mileage on the vehicle is
low, do not exceed the time for the next serv-
ice.
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Wheels

@) US DOT number (TIN) and
manufacture date
The manufacture date is listed on
the tire sidewall (it may only ap-
pear on the inner side of the tire):
DOT... 2218...
means, for example, that the tire
was produced in the 22nd week of
the year 2018.
Audi Original Tires
Audi Original equipment tires
with the designation “AO” have
been specially matched to your
Audi. When used correctly, these
tires meet the highest standards
for safety and handling. An au-
thorized Audi dealer or author-
ized Audi Service Facility will be
able to provide you with more in-
formation.
(Q) Mud and snow capability
“M/S” or “M+S” indicates the tire
is suitable for driving on mud and
snow. /\ indicates a winter tire.
Composition of the tire cord
and materials
The number of plies indicates the
number of rubberized fabric lay-
ers in the tire. In general: the
more layers, the more weight a
tire can carry. Tire manufacturers
must also specify the materials
used in the tire. These include
steel, nylon, polyester and other
materials.
@ Maximum permitted load
This number indicates the maxi-
mum load in kilograms and
pounds that the tire can carry.
@ Uniform tire quality grade
standards for treadwear,
traction and temperature
resistance
Treadwear, traction, and tempera-
ture ranges > page 260.
@ Running direction
The arrows indicate the running
direction of unidirectional tires.
You must always follow the speci-
fied running direction
=> page 274.
Maximum permitted
inflation pressure
This number indicates the maxi-
mum pressure to which a tire can
be inflated under normal operat-
ing conditions.
245