Audi Q7 Owners & Service Manuals

Audi Q7: General, Technical data

Safety Precautions

Safety Precautions when Working on High-Voltage System

Danger to life through high-voltage.

The high-voltage system operates through high-voltage. Electrocution can cause death or very serious personal injury.

- Persons with internal electronic/medical life support devices or such devices carried on the body may not work on the high-voltage system. Life support devices are, for example, internal analgesic pumps, implanted defibrillators, cardiac pacemakers, insulin pumps and hearing aids.

- The high-voltage system must only be de-energized by an appropriately qualified technician.

There is a risk of injury due to the engine starting unexpectedly.

It is difficult to determine whether the ready to drive mode is activated in electric and hybrid vehicles. Risk of parts of the body getting pinched or pulled.

- Switch off the ignition.

- Set the ignition key outside of the vehicle interior.

Risk of damaging the high-voltage cables.

Misuse can damage the insulation of high-voltage cables or high-voltage connectors.

- Never support objects on the high-voltage cables and the high-voltage connectors.

- Never support tools on the high-voltage cables and the high-voltage connectors.

- Never sharply bend or kink the high-voltage cables.

- Pay attention to the coding when connecting the high-voltage connectors.

Safety Precautions when Working near High-Voltage Components

Danger to life through high-voltage.

The high-voltage system operates through high-voltage. Death or severe bodily injury caused by electrocution from damaged high-voltage components and high-voltage cables.

- Perform a visual inspection of the high-voltage components and the high-voltage cables.

- Never use tools that are for cutting, deformed, or sharp edged.

- Never use welding, soldering, thermal adhesive or hot air.

Safety Precautions when Working on Start/Stop System

There is a risk of injury due to the engine starting unexpectedly.

The engine can start unexpectedly on vehicles with an activated Start/Stop System. A message in the instrument cluster indicates whether the Start/Stop System is activated.

- Deactivate the Start/Stop System: Switch off the ignition.

Safety Precautions during Road Test with Testing Equipment

There is a risk of injury caused by unsecured testing equipment.

If the front passenger airbag deploys during an accident, unsecured testing equipment becomes a dangerous projectile.

- Secure the testing equipment on the rear seat.

or

- Have a second technician operate the testing equipment on the rear seat.

HID Headlamps Usage and Safety Precautions

Risk of injury due to electrocution

With the headlamps switched on the HID headlamp components marked with the yellow high-voltage symbol are under high voltage. Electric shock is possible from contact with the components.

- With the illumination switched on never contact the components marked with the yellow high-voltage symbols.

- When performing procedures switch off the ignition and all electrical equipment, and place the ignition key outside of the vehicle.

- Do not operate the flashers.

Risk of injury from burning, UV radiation, blinding and explosions of the HID headlamp bulbs.

- Only operate the HID headlamp bulb in the headlamp housing.

- Do not look in the light beam.

- Avoid contact with burst bulb glass.

- Remove and install the HID headlamp bulb with protective eyewear and gloves.

Repair Information

Guidelines for Clean Working Conditions

Even very small particles of dirt can cause a fault. For this reason follow the rules of cleanliness when working:

  • Thoroughly clean the connection locations/maintenance openings and the area around them prior to loosening/opening.
  • Seal off any open lines and connections immediately with plugs, for example, taken from the Engine Bung Set -VAS6122-.
  • Place removed parts on a clean surface and cover them, do not use any lint-free cloths.
  • Cover or seal any open components carefully if the repair is not going to be performed immediately.
  • Only install clean parts: remove replacement parts from the packaging just before installing. Do not use any parts that have been removed from their packaging and left out (for example, in tool boxes).
  • Do not use compressed air when the system is open.
  • Protect any disconnected connectors from dirt and moisture and connect them only when they are completely dry.

General Information

  • Consult the applicable wiring diagram. Refer to → Wiring diagrams, Troubleshooting & Component locations.

Contact Corrosion

Contact corrosion can occur if incorrect fasteners are used (bolts, nuts, washers, etc.).

For this reason, only fasteners with a special surface coating are used.

In addition, rubber or plastic parts and adhesive consist of non-conductive materials.

If there are doubts as to whether parts are suitable or not, use new parts. Refer to the Parts Catalog.

  Note

  • We only recommend original replacement parts, they have been tested and are compatible with aluminum.
  • We recommend using Audi accessories.
  • Damage resulting from contact corrosion is not covered by warranty.

Electro-Static Discharge Work Surface

  • Requirement: Make sure nothing, especially metal or other light weight particles, can get into the headlamp housing.
  • Make sure when handling an open headlamp that no oil, grease, silicone or other such materials can contact the headlamp components, otherwise they can turn into steam and fog up the headlamp.
  • Touching electronic circuits with bare hands can lead to migration.
  • ESD (electro static discharge) protection: Always follow the German Industry Standardization EN 613-40-5-1 when handling.
  • Components or electronics that have fallen down cannot be used again.
  • ESD Work Surface -VAS6613-. Refer to → Electrical System General Information; Rep. Gr.97; ESD Work Surface VAS 6613.

Line and Wire Routing and Securing

  • Mark the fuel, hydraulic, vacuum, and EVAP system lines or wires, for example, before removing them to prevent mixing them up and to guarantee the original installation position. Draw sketches or take pictures if required.
  • Due to the restricted space in the engine compartment, make sure there is enough clearance to all moving or hot components to avoid damaging the lines/wires.

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