Audi Q4 e-tron 2024 - High-Voltage System; General Information

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High-voltage system
High-voltage system
General information
All work done on the high-voltage system must
only be performed by certified high-voltage tech-
nicians at authorized Audi dealers or authorized
Audi Service Facilities in accordance with Audi
guidelines.
The high-voltage system is composed of the fol-
lowing high-voltage components, among other
things: the high-voltage battery, the power elec-
tronics, the electric motor, the high-voltage A/C
compressor, the high-voltage heater, the charg-
ing system and charging port, and the orange
high-voltage wiring.
The high-voltage battery is located in the under-
body of the vehicle. You must not service the
high-voltage battery yourself.
The voltage in the high-voltage system is high
enough to cause fatal injuries. Touching a
damaged high-voltage component can result
ina fatal electric shock. The components in
the high-voltage system are marked with a
warning label which warns against 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.
— Do not touch any of the contacts in the
charging port, for example when cleaning
the charging unit. If you would like to clean
the charging unit, use only a dry cloth and
no other tools, such a screwdriver or a
brush.
— Never perform work on the orange high-
voltage cables or on other high-voltage
‘components. Only authorized repair facili-
ties that are certified may perform work on
the high-voltage system.
— Never damage, alter or remove the orange
high-voltage cable or disconnect it from the
high-voltage system.
— Never perform any work using cutting, shap-
ing or sharp-edged tools or heat sources
near the high-voltage system and high-volt-
age cables.
— Gases that escape from the high-voltage
battery can be poisonous or flammable.
— Damage to the high-voltage battery can
cause poisonous gases to escape, either im-
mediately or at a later time. The escaping
gases can also cause a fire. If you notice the
smell of fire or gases, follow these steps:
= Do not inhale the gases.
—Park the vehicle in a safe place outdoors
that is not near buildings or vehicles, roof
overhangs, carports, or similar structures.
— Switch the ignition off and evacuate the
vehicle.
—Leave the danger area.
—Contact emergency services.
— Do not expose yourself to any leaking fluids
and do not come into contact with them.
~The high-voltage battery electrolyte fluid is
caustic. If electrolyte fluid comes into con-
tact with the skin, flush the affected area for
at least 15 minutes with clean water. Then
wash the affected area with soap. Have the
affected area examined by a medical profes-
sional.
~ In the event of a technical emergency, in-
form the responders that the vehicle is
equipped with a high-voltage battery.
The high-voltage system can be damaged if
the vehicle underbody comes into contact
with the ground. Immediately drive your vehi-
cle to an authorized repair facility and have it
inspected.
The power output may be limited when the
high-voltage battery is cold. This will decrease
the remaining range and the performance
output can be severely limited only a short
time after starting to drive.
~To prevent this, make sure that the high
voltage battery is sufficiently charged
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