Renewing oil seal(right) for input shaft — AUDI

Special tools and workshop equipment required

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

Removing

Remove front right wheel.
Remove right front exhaust pipe with catalytic converter.

=> 6-Cylinder engine, Mechanics; Repair group 26; Removing and installing parts of exhaust system; Removing and installing right front exhaust pipe with catalytic converter.
6-Cylinder engine, Mechanics
Removing and installing parts of exhaust system
Removing and installing right front exhaust pipe with catalytic converter.

Remove right drive shaft.

=> Running gear, Front and four-wheel drive; Repair group 40; Removing and installing drive shaft
Running gear, Front and four-wheel drive
Removing and installing drive shaft

Place drip tray V.A.G 1306 underneath.
Drain gear oil in front final drive => page
39-4
.

Remove centre bolt -arrow- for right flange shaft by screwing two bolts into flange shaft and bracing with a suitable lever.
Pull out right flange shaft.

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.
Remove input shaft => Page
39-24
.

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 sealcarefullyand pull out with a pair of pliers.

Installing

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

Check oil seal seat in gearbox housing for damage and rework if necessary.
Moisten outer circumference and sealing lips 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 on oil seal up to stop.

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

Fit differential cover and tighten securing bolts -arrow- using diagonal sequence.
Fill front final drive of automatic gearbox with gear oil and check oil level => Page
39-4
.

Tightening torques

Component · Nm
Differential cover to gearbox housing · / M8 · / 23
Right flange shaft to gearbox · M8 · 25
Drive shaft to flange shaft · M10 · 77