Removing and installing oil seal for toothed belt sprocket on high-pressure pump — AUDI

🧭 Before you start

Fits: Audi A8 D3 (4E, 2002–2010)

• Renewed: seals

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• Loosen central bolt for damper weight and toothed belt sprocket (use counterhold tool T40063).
• Renew seals and O-rings.

🔧 Engine codes this applies to

📋 Procedure

1. Move lock carrier to service position .
2. Remove toothed belt for high-pressure pump 23.
3. Loosen central bolt for damper weight and toothed belt sprocket (use counterhold tool T40063).
4. Remove bolt (1).
5. Remove damper weight (2) and toothed belt sprocket (3) for high-pressure pump drive.

6. Remove circlip (2).
7. Pull out adapter (1) for oil seal.
8. Press oil seal out of adapter. [Note: Renew seals and O-rings.]
9. Drive oil seal (2) into adapter (1) (use assembly tool T10053).
10. Install toothed belt for high-pressure pump 23.
11. Install lock carrier with attachments General body repairs, exterior50.
12. Install front bumper cover General body repairs, exterior63.
13. Deactivate jacking mode Running gear, front-wheel drive and four-wheel drive43Operating the air suspension.
14. Check headlight adjustment 404.

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