Renewing oil seals for auxiliary drives: Audi Q7 4.2 (BAR, BAS, BAT, BBK, …)

🧭 Before you start

Fits: Audi Q7 (4L, 2005–2015)

• Special tools named: T40195, T40192, T40193

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• If the sections of the oil seal come apart, apply oil seal extractor again and pull out remaining part of oil seal.
• Secure dust cap with the correct type of hose clip (same as original equipment) Electronic parts catalogue.

🔧 Engine codes this applies to

📋 Procedure

1. Activate jacking mode on vehicles with air suspension 43.
2. Remove power steering pump 48.
3. Remove air conditioner compressor 87.
4. Remove hose clip on dust cap (arrow) for air conditioner compressor drive.
5. Pull dust cap off shaft journal of spur gear for AC compressor drive.

6. Screw spindle of oil seal extractor T40195 all the way out.
7. Lubricate threaded head of oil seal extractor, place it in position and screw it as far as possible into oil seal for AC compressor drive and power steering pump drive (applying firm pressure).
8. Turn inner part of oil seal extractor against spur gear drive until the oil seal is pulled out. [Note: If the sections of the oil seal come apart, apply oil seal extractor again and pull out remaining part of oil seal.]
9. Clamp hexagon flats of oil seal extractor in vice and use pliers to remove oil seal.
10. Clean contact surface and sealing surface.
11. Drive oil seal for AC compressor drive in onto stop with thrust piece T40192.
12. Drive oil seal for power steering pump drive in onto stop with thrust piece T40193. [Note: Secure dust cap with the correct type of hose clip (same as original equipment) Electronic parts catalogue.]
13. Press dust cap (arrow) with hose clip fitted onto shaft journal of spur gear for AC compressor drive.
14. Install air conditioner compressor 87.
15. Install power steering pump 48.
16. Deactivate jacking mode on vehicles with air suspension 43.

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