Replacing right oil seal for drive shaft — AUDI

The following special tools and testing devices are required:

Multi-purpose tool VW 771
Thrust piece 3322
Drip tray V.A.G 1306
Kukko 21/5

Removing

Unbolt the front wheel (right).

Vehicles with 5-cylinder TDI engine:

Removing front exhaust pipe with catalytic converter

Vehicles with 6-cylinder engine:

Remove right front exhaust pipe

=> 6-cyl. injection engine (2-valve), Mechanical Components; Repair Group 26; Removing and installing exhaust system
6-cyl. injection engine (2-valve), Mechanical Components
Removing and installing exhaust system

=> 6-cylinder Engine (5-valve), Mechanical Components; Repair Group 26; Removing and installing exhaust system parts
6-cylinder Engine (5-valve), Mechanical Components
Removing and installing exhaust system parts

Removing right-hand drive shaft

=> Running gear, FWD; Repair group 40; Removing and installing drive shaft
Running gear, FWD
Removing and installing drive shaft

Place drip tray V.A.G 1306 underneath.
Draining gear oil in front final drive => Page
39-4
.
Screw out centre bolt -arrow- for right flange shaft when doing so, screw two bolts into flange shaft and support with assembly lever.

Pull out the flange shaft (right).

Loosen securing bolts -arrow- for differential cover using diagonal sequence and remove bolts.
Remove differential cover.

Note:

When dismantling 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.
Removing drive shaft => Page
39-26
.

Assemble Kukko 21/5 -A- and multi-purpose tool VW 771 as shown in illustration and pull out oil seal.

Notes:

When inserting the tool, make sure the extractor hooks -1- of Kukko 21/5 only make contact with the oil seal and not with the gearbox housing.
As the Kukko 21/15 is applied, allow the hooks to spread out gradually until the relevant diameter is reached.
If necessary, use a screwdriver to stretch out oil seal carefully and pull out with a pair of pliers.

Installing

Install in reverse order, paying attention to the following:

Check oil seal seat in gearbox housing for damage and rework, if necessary.
Moisten outer circumference and sealing lip of oil seal with gear oil or coat thinly with Vaseline.
Slide on new oil seal with sealing lip -arrow- facing thrust piece 3322.
Drive in seal as far as stop.

Renew O-arrow ring -arrow- and coat with Vaseline.
Insert shim and bearing outer race into differential cover if they have fallen out.
Fit differential into gearbox housing.

Fit differential cover and tighten bolts alternately.

Note:

Double bolts must be screwed into the two front holes -arrows- on vehicles with TDI engines.

Topping up gear oil in front final drive of automatic gearbox and checking oil level => Page
39-4
.

Tightening torques

Component · Nm
Differential cover to gearbox housing · / M8 · / 23
Flange shaft (right) to gear box · M8 · 25
Drive shaft to flange shaft · M10 · 77