Removing and installing humidity sender G355 - vehicles with lane departure warning — AUDI

🧭 Before you start

Fits: Audi A8 D3 (4E, 2002–2010)

• Renewed: self-locking bolts

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• If humidity sender G355 is not installed correctly, it will not be centred in hole in cover.

📋 Procedure

1. If control unit is to be renewed, select the "“Replace control unit”" function for appropriate control unit in .
2. Pry open cover (1) (top) at interior mirror base (arrows).
3. Remove front interior light .
4. Remove interior mirror 68.
5. Unscrew bolts (arrows).

6. Unclip cover for centre bracket for sun visor and remove bolts.
7. Take out centre bracket for sun visor.
8. Unplug electrical connector (arrow) at front interior light.
9. Guide out wiring for humidity sender G355 between moulded headliner and body.
10. Press cover (1) apart slightly at both sides (arrows) and take out humidity sender G355(item 2). [Note: After removing centre bracket for sun visor, tapped holes for centre bracket for sun visor must be cleaned of remaining locking fluid. Otherwise the new bolts can seize when screwing in and they can shear off if they have to be removed again later.Use a thread tap to clean.Renew self-locking bolts.]
11. Carefully insert humidity sender G355 in side guides. [Note: If humidity sender G355 is not installed correctly, it will not be centred in hole in cover.]
12. Install interior mirror 68.
13. Install front interior light .

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