Renewing oil seal for output flange / rear propshaft (transfer box installed) — AUDI

🧭 Before you start

Fits: Audi Q7 (4L, 2005–2015)

Don't miss

• Mark position of propshaft relative to transfer box and rear final drive (arrow).
• The assembly lever (1) must be supported against the surface indicated by (arrow A) when levering off the propshaft.The propshaft is secured on the end of the shaft with a circlip and must be removed by jerking it firmly.
• Take care not to damage sealing surface of output shaft.To avoid damaging the bearing behind, do not screw in the self-tapping screw too far.

📋 Procedure

1. Remove bolts securing centre propshaft bearing (1) and rest propshaft on exhaust system.
2. If fitted, unbolt damper weight from transfer box (4 bolts).
3. Mark position of propshaft relative to transfer box and rear final drive (arrow).
4. ⚠ Risk of damage to propshaft.When levering the propshaft off the transfer box the assembly lever (1) must be applied to the sleeve (arrow B).If the assembly lever (1) is applied to the boot, the boot will be damaged. In this case, the propshaft would have to be renewed. — Lever propshaft off transfer box. Apply assembly lever (1) to end of hub on propshaft (arrow B). [Note: The assembly lever (1) must be supported against the surface indicated by (arrow A) when levering off the propshaft.The propshaft is secured on the end of the shaft with a circlip and must be removed by jerking it firmly.]
5. Tie propshaft up to underbody on the side.

6. Lever off dust cap (A) using assembly lever (B).
7. Pierce hole in centre of oil seal using a suitable punch.
8. Screw in self-tapping screw (4 mm diameter) (arrow). [Note: Take care not to damage sealing surface of output shaft.To avoid damaging the bearing behind, do not screw in the self-tapping screw too far.]
9. Pull out oil seal using puller T10055.
10. Lightly oil outer circumference of new oil seal.
11. Pack space between sealing lip and dust lip half-full with sealing greaseG 052 128 A1.
12. Drive in new oil seal onto stop (take care to keep oil seal straight).
13. Drive new dust cap (A) onto shaft until it engages positively.
14. Renew O-ring (A) and circlip (B).
15. Secure propshaft at transfer box and centre propshaft bearing .
16. Check oil level in transfer box .

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 static cornering light M51/M52, gas discharge headlights - vehicles from model year 2012 onwards, USA vehicles from model year 2013 onwards
• Removing and installing inner tail light cluster (LED) - Audi A5 (vehicles up to model year 2011, USA vehicles up to model year 2012)
• Removing and installing inner tail light cluster (LED) - vehicles from model year 2012 onwards, USA vehicles from model year 2013 onwards
• Removing and installing outer tail light cluster – Audi A8 D3
• Removing and installing roof aerial R216, Sportback – Audi A5