Renewing oil seal for flange shaft (rear) on gearbox: Audi A6 C6
Step-by-step renewing oil seal for flange shaft (rear) on gearbox for the Audi A6 C6: 16 steps. What to remove, in what order, and what to check after.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A6 C6 (4F, 2004–2011)
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- An oil seal with additional dust lip (arrow B) must be fitted in conjunction with a flange shaft which has a groove (arrow A).
📋 Procedure
- Detach circlip for flange shaft (arrow).
- Press out flange shaft (centre differential housing with vibration damper).
- Set up centre differential housing so that flange shaft does not make contact with press plate (arrows) when it is pressed out.
- Press out flange shaft (centre differential housing without vibration damper).
- Pry out oil seal. [Note: An oil seal with additional dust lip (arrow B) must be fitted in conjunction with a flange shaft which has a groove (arrow A).]
- Place shim and oil seal on punch2005, as shown.
- Lightly oil outer circumference of new oil seal.
- Knock in new flange shaft oil seal as far as stop; keep seal straight when installing.
- Pack space between sealing lip and dust lip half-full with sealing greaseG 052 128 A1.
- Detach punch2005 and shim.
- Lightly oil outer circumference of new oil seal.
- Knock in new flange shaft oil seal as far as stop; keep seal straight when installing.
- Pack space between sealing lip and dust lip half-full with sealing greaseG 052 128 A1.
- Press in flange shaft.
- Fit circlip (arrow).
- Install centre differential housing and centre differential .
Other AUDI procedures
- Removing and installing toothed belt – Audi · 56 torque figures
- Removing engine – Audi A8 D3 · 41 torque figures
- Removing camshaft timing chain from camshafts – Audi A6/A7 C7 · 38 torque figures
- Installing engine – Audi A8 D4 · 36 torque figures
- Removing and installing camshaft timing chain · 29 torque figures
- Renewing oil seal (right-side) - Audi Q5
- Removing and installing shock absorber - four-wheel drive vehicles
- Removing and installing steering rack - electromechanical steering rack
- Removing camshafts and re-installing used camshafts - cylinder bank 2 (left-side)
- Removing and installing brake pads (1LT / 1LY)
Who makes these pages, and how
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.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.