Audi A4: Trailer Hitch
Overview - Trailer Hitch

1 -
Information Label
- On the left side of the body at the rear
2 -
Towing Recognition Control Module -J345-
- Removing and installing. Refer to
→ Chapter "Towing Recognition Control Module -J345-, Removing and
Installing".
3 -
Trailer Hitch Release Button -E754-
- Removing and installing. Refer to
→ Electrical Equipment; Rep. Gr.96; Controls; Component Location
Overview - Luggage Compartment Controls.
4 -
Trailer Socket -U10-
- Removing and installing. Refer to
→ Electrical Equipment General Information; Rep. Gr.96; Trailer Hitch.
5 -
Trailer Hitch
- Only removable with the impact member
- Removing and installing. Refer to
→ Chapter "Overview - Impact Member".
Towing Recognition Control Module -J345-, Removing and Installing
Removing
- Open the left service cover. Refer to
→ Body Interior; Rep. Gr.70; Luggage Compartment Trim Panels;
Overview - Luggage Compartment Side Trim Panel.
- Disconnect the connectors -4 through 7-.
- Release the retainers -1- in the
direction of -arrows- and remove
the Towing Recognition Control Module -J345--2-
from the bracket -3-.

Installing
Install in reverse order of removal.
Special Tools
Special tools and workshop equipment
required
- Engine/Gearbox Jack - Gearbox Support -T10337-

- Wedge Set -T10383-
- Wedge 1 -T10383/1-

- Socket - Torx T50 -T10470-


- Double Suction Lifter -VAG1344-

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

- Angled Screwdriver -VAS6416-

- Engine and Gearbox Jack -VAS6931-


- Trim Removal Wedge -3409-

Revision History
DRUCK NUMBER: A005A014621

READ NEXT:
Safety Precautions when Working on Vehicles with 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
SEE MORE:
Caution
Do not bend the fiber-optic cable too much. The
bending radius must be no less than 25 mm.
Fiber optic cables must not be routed over sharp
edges.
The fiber-optic cable must not be dirty or touched
with bare fingers.
Fiber optic cables may not be heated.
It is not permitted to tw
Latch Release Cable, Removing and Installing
Removing
- Remove the vehicle electrical system control module bracket.
Refer to
→ Electrical Equipment; Rep. Gr.97; Relay Panels, Fuse Panels,
E-boxes; Component Location Overview - Relay Panels, Fuse
Panels, E-boxes.
- Loo