Renewing oil seals for torque converter bellhousing — AUDI

Special tools and workshop equipment required

Press tool VW 433
Guide pin VW 439
Oil seal extractor lever VW 681
Extractor hook 2086
Thrust piece 3331
Thrust piece 3332

Thrust piece 3333

Removing

Gearbox removed

Remove torque converter
Secure gearbox to repair stand
=>Page
37-47
Drain ATF=>Page
37-55
.
Drain gear oil in front final drive => Page
39-2
.

Remove left-hand flange shaft with oil seal
=>Page
39-10
.
Loosen securing bolts -arrow- for differential cover using diagonal sequence and remove bolts.
Remove differential cover.

Note:

When removing differential cover, secure differential to prevent it from falling out.

Take out differential with inner races for taper roller bearings. Leave the outer races in place.

Notes:

When removing, ensure that taper roller bearing outer race and shim behind bearing race do not drop out.
The shim has a measured thickness, and must not be exchanged with a shim of different thickness.

Remove right-hand flange shaft with oil seal
=>Page
39-14
.
Remove circlip -Item
39-8
for transverse shaft bearing.

Drive out transverse shaft bearing with light hammer blows on the transverse shaft using a plastic hammer.

Note:

Prevent transverse shaft from dropping out when removing transverse shaft bearing.

Pull out left oil seal for transverse shaft using extractor hook 2086.

Carefully lever out left oil seal for transverse shaft with a screwdriver.

Note:

Do not damage seating surfaces for oil seal.

Installing

Installation is carried out in the reverse order, when doing this note the following:

Drive in right oil seal for transverse shaft onto stop using thrust piece 3333.

Insert differential into gearbox housing.

Install differential cover with new O-ring and tighten securing bolts -arrow- in diagonal sequence.

Drive left oil seal for transverse shaft onto stop using thrust piece 3332.

Carefully slide in transverse shaft.
Drive in transverse shaft bearing onto stop using press tool VW 433 and guide pin VW 439.
Install circlip.
Pack transverse shaft bearing with 25 g of grease G 000 100.

Install left-hand flange shaft with oil seal
=>Page
39-12
.
Install right-hand flange shaft with oil seal
=>Page
39-16
.
Fill up with ATF => Page
37-55
.

Tightening torque

Component · Nm
Differential cover to gearbox housing · / M8 · / 25