Replacing inner oil pipe — AUDI

The following special tools and testing devices are required:

Pressing in aid 3321

Pressing in aid T40006

Notes:

Always fit new oil pipe after removing.
As of gearbox no. 34 679 onwards there are slots -arrows- in the drillings for the oil pipe in the gearbox housing. Always fit O-rings when installing a new oil pipe in this gearbox version, irrespective of which type of oil pipe was fitted originally.
The oil pipe may only be installed using installing tool 3321 (for oil pipe without O-ring) or installation tool T40006 (for oil pipe with O-ring).
If the oil pipe is installed without using the relevant special tool, the result may be leaks caused by bending the oil pipe.
A bad fit or defective O-rings on the internal oil pipe will allow ATF to leak into differential, which will overflow and cause oil to drip out of differential breather.

Removing

Remove valve body => Page
38-5
.
Lever internal oil pipe off gearbox housing using a screwdriver, applying pressure evenly.

Note:

Do not damage the sealing surface of the oil pan when pressing the oil pipe off. Use a second screwdriver as a support base as necessary.

Installing up to gearbox No. 34 678

Install in reverse order, paying attention to the following:

Allow oil to drain completely out of hole for oil pipe.
Degrease hole for oil pipe with quick-acting cleaning solution (e.g. Z 371 405 TE).

Place new oil pipe -1- in installing tool 3321.
Coat ends of oil pipe -arrows- with locking fluid AMV185 101 A1.
Drive oil pipe into gearbox housing with light blows of a plastic hammer on pressing in aid 3321.

Notes:

Open side of installing tool 3321 faces towards outer wall of gearbox.
Take care not to tilt oil pipe. Drive in both ends evenly.

Install valve body => Page
38-5
.
Fill up with ATF and check ATF level => Page
37-57
.
Checking gear oil level in front final drive => Page
39-3
.

Installing from gearbox No. 34 679

Fit new O-arrows rings -arrows- on new internal oil pipe.
Apply a thin coating of Vaseline to O-arrows rings. Do not use locking fluid.
Place oil pipe -1- in installing tool T40006.
Drive oil pipe into gearbox housing with light blows of a plastic hammer on pressing in aid T40006.

Notes:

Open side of installing tool 3321 faces towards outer wall of gearbox.
Take care not to tilt oil pipe. Drive in both ends evenly.

Install valve body => Page
38-5
.
Fill up with ATF and check ATF level => Page
37-57
.
Checking gear oil level in front final drive => Page
39-3
.