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Renewing oil seal for rear flange shaft — AUDI

Renewing oil seal for rear flange shaft on Audi: factory workshop procedure. Full factory text, tools and checks.

Workshop procedure for AUDI — the factory write-up, straight from real workshop data.

factory workshop text

📋 Procedure

Removing

Remove front cross member -arrow 1- below exhaust system.

Vehicles with 5-cylinder engine:

Remove left and right centre exhaust pipes.

=> 5-cylinder injection engine (4-valve, Turbo), Mechanics; Repair Group 26; Removing and installing parts of exhaust system
5-cylinder injection engine (4-valve, Turbo), Mechanics
Removing and installing parts of exhaust system

Vehicles with 6-cylinder engine:

Remove left and right exhaust pipes with catalytic converter and intermediate pipe.

=> 6-cylinder injection engine (2.6 l engine, 2-valve), Mechanics; Repair Group 26; Removing and installing parts of exhaust system; B - Vehicles with four wheel drive
6-cylinder injection engine (2.6 l engine, 2-valve), Mechanics
Removing and installing parts of exhaust system
B - Vehicles with four wheel drive

=> 6-cylinder injection engine (2-valve), Mechanics; Repair Group 26; Removing and installing parts of exhaust system; C - Vehicles with four wheel drive
6-cylinder injection engine (2-valve), Mechanics
Removing and installing parts of exhaust system
C - Vehicles with four wheel drive

=> 6-cylinder engine (5-valve), Mechanics; Repair Group 26; Removing and installing parts of exhaust system; Vehicles with four wheel drive, engine code ACK
6-cylinder engine (5-valve), Mechanics
Removing and installing parts of exhaust system
Vehicles with four wheel drive, engine code ACK

All models

Remove heat shield for propshaft -arrows-.

Unbolt securing bolts for propshaft to rear final drive, lift propshaft clear and tie in place.

Note:

Do not bend propshaft more than 25°, otherwise the universal joint could be damaged.

Remove securing bolt -arrow- by screwing two bolts into flange shaft and bracing with a suitable lever.
Pull flange shaft off to rear.

Lever oil seal out with a suitable screwdriver.

Installing

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

Check oil seal seat and housing surface in area of oil seal seat for damage and rework if necessary.
Coat outer circumference and sealing lip of oil seal thinly with Vaseline.
Slide oil seal onto press piece 3306 A so that sealing lip faces towards gearbox.

Drive in oil seal up to stop of press piece using press piece 3306 A.
Bolt propshaft to gearbox flange=>page
39-119
.

Tightening torques

Component · Nm
Rear flange shaft to gearbox · 25
Propshaft to gearbox · M8 · 55
Heat shield for propshaft to gearbox · / M8 · / 23
Cross member to body · M8 · 23

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TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.

The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.

Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.

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Workshop data on this page last updated 20 Sep 2026.