Replacing oil seal for Hall sender and sealing cap - left cylinder head — AUDI
Replacing oil seal for Hall sender and sealing cap - left cylinder head on Audi: 12 steps, engines ACK, ALG, AMX, APR.
Workshop procedure for AUDI — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: Audi A8 D2 (4D)
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- Check direction of rotation of oil seal before fitting.
- If engine has been removed, bearing cap can be left in position when replacing oil seal and sealing cap. Procedure .
📋 Procedure
- Remove left cylinder head cover .
- Remove Hall sender and Hall sender rotor ring .
- Unscrew double bearing cap (arrows).
- Take out oil seal and sealing cap.
- Clean contact and sealing surfaces as well as resting surfaces of double bearing cap.
- Coat (hatched area) of double bearing cap with a small quantity of sealant; sealant Parts catalogue.
- Check direction of rotation of oil seal before fitting.
- Fit oil seal in position and install double bearing cap.
- Use assembly lever to press in sealing cap. [Note: If engine has been removed, bearing cap can be left in position when replacing oil seal and sealing cap. Procedure .]
- Install Hall sender rotor ring and washer .
- Fit Hall sender .
- Install left cylinder head cover .
Other AUDI procedures
- Testing fuel pump (electrical test)
- Removing and installing fuel delivery unit - vehicles with 6-cylinder turbo engine
- Assembly overview - intake manifold connections and throttle valve control module
- Checking injection quantity, leak tightness and spray pattern of injectors
- Checking coolant temperature sender -G62
- 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
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
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.