Renewing oil seal between final drive and gearbox housing — AUDI

🧭 Before you start

Fits: Audi A4 Cabriolet B6/B7 (8H), Audi A4 B6/B7 (8E), Audi A8 D3 (4E, 2002–2010), Audi A6 C6 (4F, 2004–2011)

Don't miss

• The gearbox must not be placed down on ATF cooler or oil pan. — Remove flange shaft (right-side) Automatic gearbox 09L, four-wheel drive39.
• The thickness of the shim has been measured to fit; the shim must not be replaced with another shim of different thickness.
• Push oil seal onto thrust piece with the protruding sealing lip on the oil seal facing towards the tool.
• Make sure that shim and outer race are kept straight when inserting.

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. ⚠ The gearbox must not be placed down on ATF cooler or oil pan. — Remove flange shaft (right-side) Automatic gearbox 09L, four-wheel drive39.
2. Remove bolts in the sequence (11 ... 1).
3. Remove cover for front final drive together with outer race for tapered roller bearing and shim. [Note: The thickness of the shim has been measured to fit; the shim must not be replaced with another shim of different thickness.]
4. Remove differential.
5. Remove tapered roller bearing outer race (1) for differential and shim (2) (behind outer race) from gearbox housing by hand. [Note: The thickness of the shim has been measured to fit; the shim must not be replaced with another shim of different thickness.]

6. Remove flange shaft (left-side) Automatic gearbox 09L, four-wheel drive39.
7. Pull out oil seal. [Note: The oil seal extractor leverVW 681 must be applied behind the two sealing lips of the oil seal. Do not position at outer circumference of oil seal as the contact surface in the gearbox housing could be damaged. Guide the lever carefully when removing the seal.]
8. Examine oil seal seat in gearbox housing for damage; reface surface if necessary.
9. Lightly lubricate outer circumference and sealing lip of oil seal with gear oil. [Note: Push oil seal onto thrust piece with the protruding sealing lip on the oil seal facing towards the tool.]
10. Drive in new oil seal as far as stop using thrust piece T10139.
11. Insert shim (2) and tapered roller bearing outer race (1) for differential onto stop in gearbox housing by hand. [Note: Make sure that shim and outer race are kept straight when inserting.]
12. Renew O-ring (arrow).
13. Install differential in gearbox housing.
14. Lubricate shim and outer race for tapered roller bearing with gear oil and insert in cover for front final drive as far as stop.
15. Tighten bolts of cover for front final drive as follows.
16. Tighten bolts (1) and (2) to 3 Nm. — 3 Nm (2.2 lb-ft)
17. Tighten bolts (1 ... 11) to 23 Nm in the sequence indicated. — 23 Nm (17 lb-ft)
18. Install flange shafts (left and right) Automatic gearbox 09L, four-wheel drive39.

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
• Removing and installing radio "chorus" and "concert" – Audi
• Removing and installing radio "symphony" – Audi A6 C5
• Adjusting selector lever cable (vehicles from VIN 8E_6A156500 onwards)
• Removing and installing auxiliary battery – Audi A8 D4
• Replacing sealing strip – Audi A8 D4