Wiring harness in transmission, removing and installing

WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2009 Audi A4, 2008 Audi S4, 2008 Audi A4, 2007 Audi S4, and 2007 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Removing

Remove mechatronics unit → Mechatronics unit, removing and installing
Touch vehicle Ground (GND) with your hand (without gloves) to discharge any static electricity.

CAUTION:

Before touching or removing the mechatronics unit, always discharge any static electricity by touching vehicle Ground (GND) or other Ground (GND) object with your hand.
Never touch contacts in 16-pin connector by hand, as static discharge would damage the control module and mechatronics unit.

Fig 1: Locating Wiring Harness With Connector Is Attached To The Mechatronics Unit

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Carefully disconnect wiring harness - A - from mechatronics unit - B -. Make sure you detach tab - arrow - on reverse side of wiring harness from mechatronics unit.

NOTE:

If the tab on the reverse side of the wiring harness breaks off, the wiring harness must be replaced → Wiring harness in transmission, removing and installing .

Carefully disconnect connector - C - from socket - D - of mechatronics unit.

Installing

Installation is performed in reverse sequence. Note the following:

Carefully connect connector - C - to socket - D - on mechatronics unit.
Clip wiring harness - A - onto mechatronics unit - B - by first attaching tab - arrow - on reverse side of wiring harness to mechatronics unit.
Install mechatronics unit → Mechatronics unit, removing and installing .
Fill with ATF → Draining ATF or filling after repairs .