Audi A6 Typ 4G: Trailer Hitch
Overview - Outlet, Towing Recognition Control Module

1 - LED Indicator Lamp
- Trailer Hitch -Locked- Indicator Lamp -K226-, Trailer Hitch
-Unlocked- Indicator Lamp -K227-
- Make sure the trailer hitch is locked correctly
- Removing and installing. Refer to
→ Chapter "LED Indicator Lamp, Removing and Installing".
2 - Mount
- For the cable
- For unlocking the trailer hitch
3 - Upper Frame
- For Towing Recognition Control Module -J345-
4 - Towing Recognition Control Module -J345-
- Removing and installing. Refer to
→ Chapter "Towing Recognition Control Module -J345-, Removing and
Installing".
5 - Connectors
6 - Trailer Socket -U10-
- Removing and installing. Refer to
→ Electrical Equipment General Information; Rep. Gr.96; Trailer Hitch.
- For the connector assignment. Refer to
→ Electrical Equipment General Information; Rep. Gr.96; Trailer Hitch.
LED Indicator Lamp, Removing and Installing
Removing
- Remove the luggage compartment left side trim panel cover.
- Remove the LED indicator lamp -4-
from the cable mount -1- and free
up the electric wire -3-.
- Remove the connector -2- from
the mount and disconnect it.
Installing
Install in reverse order of removal.

Towing Recognition Control Module -J345-, Removing and Installing
- If the control module was replaced, select the "Replace"
function for the respective control module in "Guided Fault
Finding" or "Guided Functions" using the Vehicle Diagnostic
Tester.
Removing
- Remove the luggage compartment right side trim panel cover.
- Disconnect the connectors -2, 3 and 4-.
- Release the tab in direction of
-arrow- and remove the towing recognition control module
-1- from the upper retaining frame.
Installing
Install in reverse order of removal.

READ NEXT:
Socket Illumination Bulb -L42- Removing and Installing, 12 V Socket
-U5-
Special tools and workshop equipment
required
Removing
- Remove the center console storage compartment. Refer to
→&nbs
Overview - Relay Carriers, Fuse Panels and E-Boxes
1 - Nut
3 Nm
Quantity: 2
2 - Screw
3 Nm
Quantity: 4
3 - Engine Control Module
4 - Nut
3 Nm
Quant
SEE MORE:
Fig. 185 Engine compartment: cap on brake fluid reservoir
Observe the safety precautions
in Working
in the engine compartment.
Checking the brake fluid level
Read the brake fluid level on the brake fluid
reservoir
fig. 182. The brake fluid
level must be between the MIN and MAX markings
.
The
Component Location Overview - Seat Versions
Note
In the illustration, seats in a sedan model with a fixed backrest is
shown.
1 - Front Passenger Seat
Standard seat/Sport seat/Super Sport seat (manual/power)
Vehicles with:
Seat/backrest heating
Lumbar Support
Storage Compartm