Audi Q7: Trailer Hitch

Component Location Overview - Trailer Hitch

1 - Towing Recognition Control Module -J345-

• Overview. Refer to → Chapter "Overview - Trailer Hitch".
• Removing and Installing. Refer to → Chapter "Towing Recognition Control Module -J345-, Removing and Installing".

2 - Frame

• For Towing Recognition Control Module -J345-

3 - Information Label

• On the left side of the body at the rear

4 - Power Pivoting Trailer Hitch Button -E474-

• Component Location Overview. Refer to → Electrical Equipment; Rep. Gr.96; Controls; Component Location Overview - Luggage Compartment Controls

5 - Trailer Hitch Bend Angle Sensor -G820-

• Overview. Refer to → Chapter "Overview - Trailer Hitch".
• Removing and Installing. Refer to → Chapter "Trailer Hitch Bend Angle Sensor -G820-, Removing and Installing".

6 - Trailer Socket -U10-

• Overview. Refer to → Chapter "Overview - Trailer Hitch".
• Removing and installing. Refer to → Electrical Equipment General Information; Rep. Gr.96; Trailer Hitch.

7 - Connector

• For Trailer Hitch Bend Angle Sensor -G820-

Overview - Trailer Hitch

1 - Trailer Hitch

• Component Location Overview. Refer to → Chapter "Component Location Overview - Trailer Hitch".
• Only removable with the impact member
• Removing and Installing. Refer to → Chapter "Impact Member, Removing and Installing, Vehicles with Trailer Hitch".

2 - Trailer Socket -U10-

• Removing and installing. Refer to → Electrical Equipment General Information; Rep. Gr.96; Trailer Hitch.

3 - Ring on Trailer Hitch Bend Angle Sensor -G820-

• Removing and Installing. Refer to → Chapter "Trailer Hitch Bend Angle Sensor -G820-, Removing and Installing".

4 - Trailer Hitch Bend Angle Sensor -G820-

• Removing and Installing. Refer to → Chapter "Trailer Hitch Bend Angle Sensor -G820-, Removing and Installing".

5 - Towing Recognition Control Module -J345-

• Removing and Installing. Refer to → Chapter "Towing Recognition Control Module -J345-, Removing and Installing".

Trailer Hitch Bend Angle Sensor -G820-, Removing and Installing

Ring on Trailer Hitch Bend Angle Sensor -G820-, Removing and Installing

Removing

- Push the ring covering -1- at the separating point -arrow A- to the side and release the locking mechanism -2-.

- Open the ring at the separating point -arrow A- and remove it from the ball head -5-.

Installing

Install in reverse order of removal and note the following:

• The smaller ring diameter must face upward.
• The ring locking mechanism must engage audibly.

Trailer Hitch Bend Angle Sensor -G820-, Removing and Installing

Removing

- Remove the ring on Trailer Hitch Bend Angle Sensor -G820-.

- Disconnect the cable tie -3- along the connector -4-.

- Disconnect the connector -4- and disconnect the wires near the housing -arrow B-.

- Turn the bend angle sensor -1- 90º -arrow A- and pull it with the wire out of the ball head -2- for the trailer hitch -arrow B-.

Installing

Install in reverse order of removal and note the following:

• The bend angle sensor must rest flush with the ball head.

- Crimp the wires. Refer to → Electrical System General Information; Rep. Gr.97; Wiring Harness and Connectors, Repairing.

Connector Assignment on Connector Housing for Trailer Hitch Bend Angle Sensor -G820-

• Pin 1: red
• Pin 2: black
• Pin 3: yellow

Towing Recognition Control Module -J345-, Removing and Installing

Removing

- Remove the luggage compartment left trim panel. Refer to → Body Interior; Rep. Gr.70; Luggage Compartment Trim Panels; Luggage Compartment Side Trim Panel, Removing and Installing.

- Release the retainers -arrows- and remove the towing recognition control module -1- from the frame -2-.

- Disconnect the connectors -3 through 6-.

Installing

Install in reverse order of removal and note the following:

• If the control module is being replaced, the "Replace control module" function for the respective control module must be selected. Use the → Vehicle diagnostic tester, Diagnose.

Special Tools

Special tools and workshop equipment required

• Engine/Gearbox Jack - Gearbox Support -T10337-

• Wedge Set -T10383-

• Socket - Torx T50 -T10470-

• Double Suction Lifter -VAG1344-

• Wiring Harness Repair Set - Hot Air Blower -VAS1978/14A-

• Container of the Coolant Collection System -VAS5014- or the Shop Crane - Drip Tray -VAS6208-

• Engine Bung Set -VAS6122-

• Hose Clip Pliers -VAS6340-

• Angled Screwdriver -VAS6416-

• Engine and Gearbox Jack -VAS6931-

• Hose Clamps - Up To 25 mm -3094-

• Roller -3356-

• Trim Removal Wedge -3409-
• Hand drill
• 5 mm drill bit

Revision History

DRUCK NUMBER: A005A011121

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