Removing and installing alarm horn H12: Audi A8 D4

🧭 Before you start

Fits: Audi A8 D4 (4H, 2010–2017)

📋 Procedure

1. Remove wiper arms .
2. Detach seal (1).
3. ⚠ Risk of damage to plenum chamber cover.Apply a small quantity of soap solution to transition between windscreen and plenum chamber cover. — Starting at edge of windscreen, carefully pull plenum chamber cover (2) vertically up and out of retainer at windscreen (arrows).
4. Disengage plenum chamber cover from outer plenum chamber covers (3); raise cover at centre and disengage from guides (4) to the side.
5. Unplug electrical connector (5).

6. Remove nut (1).
7. Disengage refrigerant line (4) from retaining clip (3).
8. Guide out alarm horn H12(item 2) to left from beneath refrigerant line.
9. Insert refrigerant line in retaining clip.
10. Install wiper arms .

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