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Servicing 6-speed manual gearbox 0A3, four-wheel drive — Dismantling and assembling centre differential housing — AUDI

Servicing 6-speed manual gearbox 0A3, four-wheel drive — Dismantling and assembling centre differential housing on Audi: 13 steps.

Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.

13 steps

🧭 Before you start

Fits: Audi A4 Cabriolet B6/B7 (8H), Audi A4 B6/B7 (8E), Audi A6 C6 (4F, 2004–2011)

Don't miss

  • Fit a flange shaft with a groove if an oil seal with additional dust lip is installed. Select correct components from Electronic parts catalogue.
  • 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

  1. Remove circlip before pressing out flange shaft.
  2. Set up centre differential housing so that flange shaft does not make contact with press plate (arrows) when it is pressed out.
  3. Remove circlip before pressing out flange shaft.
  4. Secure vibration damper before pressing in flange shaft. [Note: Fit a flange shaft with a groove if an oil seal with additional dust lip is installed. Select correct components from Electronic parts catalogue.]
  5. Fit circlip. [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).]
AUDI? Steps differ between engine variants — check this job against your exact car before you commit to it. Check my car — free →
  1. Place shim and oil seal on tool as shown.
  2. Lightly oil outer circumference of new oil seal.
  3. Knock in new flange shaft oil seal as far as stop; keep seal straight when installing.
  4. Pack space between sealing lip and dust lip half-full with sealing greaseG 052 128 A1.
  5. Remove tool and shim.
  6. Lightly oil outer circumference of new oil seal.
  7. Knock in new flange shaft oil seal as far as stop; keep seal straight when installing.
  8. Pack space between sealing lip and dust lip half-full with sealing greaseG 052 128 A1.

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

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Workshop data on this page last updated 20 Sep 2026.