Audi A6 Typ 4G: Safety Precautions
High Voltage Vehicles Safety Precautions
General Safety Precautions for the High Voltage System
Note
Check with the importer is there are any questions regarding
the titles "high voltage technician", "high voltage expert" or
regarding the high voltage system before beginning any work on
the high voltage system.
DANGER!
Extremely dangerous due to high voltage.
- The high voltage system is under high voltage.
Electrocution can cause death or very serious personal
injury.
- Individuals with electronic/medical life- and health
sustaining machines in or on their person cannot perform
any work on high voltage systems. Life- and health
sustaining machines are for example pain killer pumps,
implanted defibrillators, pacemakers, insulin pumps, and
hearing aids.
- Have the high voltage system de-energized by a
qualified person.
DANGER!
The engine could start unexpectedly.
- On electric - hybrid vehicles an active ready mode
is difficult to identify. Parts of the body can be
clamped or pulled.
- Turn off the ignition.
- Place the ignition key outside of the vehicle
interior.
DANGER!
Handling the high voltage cables
- Never support on the high voltage cables and high
voltage connectors. --> This may damage the insulation.
- Do not lay tools on the high voltage cables and high
voltage connectors.-> This may damage the insulation.
- Do not sharply bend or kink the high voltage cables.
--> This may damage the insulation.
- When connecting pay attention to the coding of the
high voltage connectors.
Safety Precautions for the High Voltage System, when the Voltage must be
De-Energized
Before beginning work on the high voltage system, a high
voltage technician must de-energize the high voltage system.
Refer to
→ Electrical System Hybrid; Rep. Gr.93; High Voltage System,
De-Energizing.
De-energizing the high voltage system is carried out
exclusively via the "Guided Fault Finding" in the Vehicle
Diagnostic Tester
For the procedures required for de-energizing the high voltage system.
DANGER!
Hazardous high voltage
Electrocution can cause death or very serious
personal injury.
- The high voltage system may only be turned off by a
qualified person (Audi high voltage technician) .
- It must be certain that the voltage for the high
voltage system is turned off. The voltage is guaranteed
to be off exclusively with the Vehicle Diagnostic Tester
via the "Guided fault finding".
- The qualified technician (Audi high voltage
technician) will make sure the voltage is turned off and
that the system cannot turn back on again using a
Service Disconnect Lock -T40262/1-. The qualified
technician should make sure the system cannot turn on
again by keeping the key and the Service Disconnect Lock
-T40262/1- in a safe place.
- The qualified personnel (Audi high voltage
technicians) mark the vehicle with a label.
Safety Precautions when Restarting the High Voltage System
Restarting the high voltage system must be performed only by
using "Guided Fault Finding" on the Vehicle Diagnostic Tester.
DANGER!
Hazardous high voltage
Severe bodily injury or death by electrocution
- The high voltage system may only be restarted by a
qualified person (Audi high voltage technician).
- Use only the Vehicle Diagnostic Tester in "Guided
Fault Finding "to ensure the system has been
re-energized.
- Qualified personnel (Audi high voltage technician)
restart the vehicle.
- The qualified personnel (Audi high voltage
technicians) mark the vehicle with a label.
Safety Precautions near High Voltage Components
DANGER!
High voltage components have hazardous voltage.
- The high voltage system is under high voltage.
Electrocution can cause death or very serious personal
injury from damages high voltage components and high
voltage cables.
- Do not use tools that are for cutting, deformed, or
sharp edged.
- Do not use sources of heat such as welding,
soldering, hot air or thermal adhesive equipment.
- Visually inspect the work area before working on
high voltage components.
- When working in the engine compartment, perform a
visual inspection of the high voltage system maintenance
connector, electric drive power and control electronics,
the electro-drive drive motor, the A/C compressor, high
voltage battery charger control module and the high
voltage cables.
- Perform a visual inspection of the High Voltage
Heater (PTC), high voltage cables, the hybrid battery
unit and the cover when working on the underbody.
- Visually inspect all potential equalization cables.
Observe the following when performing the visual
inspection:
- None of the components appear to have any external
damage.
- The high voltage cable insulation and the potential
equalization cable insulation are not damaged.
- The high voltage cables must not have any unusual
deformations.
- Each high voltage component must be marked with a
red warning label.
Safety Precautions for the High Voltage System, for Work During which the
Ignition must be Switched On
DANGER!
When working on vehicles with the ignition already
switched on or that are ready to drive there is a danger
of the engine starting unexpectedly and of being
poisoned by gas in enclosed areas. Risk of body parts
and/or clothing being clamped or pulled.
Perform the following before switching on the
ignition:
- Move the selector lever into P.
- Activate the parking brake
- Turn off the ignition.
- Open the hood
- Connect the charger, such as the Battery Charger
-VAS 5095A- to the jump start point of the 12V vehicle
electrical system.
- Turn on the ignition.
Safety Precautions for the High Voltage System, for Work During which the
Ignition must be not Switched On
DANGER!
The engine could start unexpectedly.
- On electric - hybrid vehicles an active ready mode
is difficult to identify. Parts of the body can be
clamped or pulled.
- Turn off the ignition.
- Place the ignition key outside of the vehicle
interior.
Road Test with Testing Equipment Safety Precautions
If testing equipment must be used during a road test,
observe the following:
WARNING
Distraction and testing equipment that is not
secured properly can cause accidents.
The passenger airbag could pose a risk if it deploys
in a collision.
- Operating testing equipment while driving is a
distraction.
- Testing equipment that is not secured probably
increases the risk of injury.
Always secure testing equipment on the rear seat
with a strap and have a second person on the rear seat
operate them.
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Opening/closing the luggage compartment
lid
Fig. 24 Driver's door: opening the luggage compartment
lid
Fig. 25 Handle in the rear lid
Opening the luggage compartment lid
Press and hold the button
on the remote
control key for at least one second. Or
Pull the button in the
driver's door