Alarm Horn: Service and Repair

Alarm Horn (H12)

Special tools, testers and auxiliary items required

• Drill (VAS 5134)

• Drill bit 2.5 mm

• Drill bit 6 mm

• To remove the alarm horn, anti-theft alarm system must be deactivated, refer to => [ Anti-Theft Alarm System, Activating and Deactivating ] Anti-Theft Alarm System, Activating and Deactivating.

Removing:

- Switch ignition and all electrical consumers off and disengage the key or ignition switch in position 0 (ignition off).

- Remove right front wheel housing liner.

- Use (VAS 5134) with 6 mm drill bit to remove the heads from both shear bolts - arrows -.





- Disengage harness connector - 1 - through opening in housing - 2 - using a small screwdriver and remove Alarm Horn - 3 - out of wheel housing.





- Use (VAS 5134) with 2.5 mm drill bit to remove remaining threads - arrows -. Restore threads with appropriate thread tap.





Installing:

• Remove all metal shavings through the drilled holes.

- Apply the necessary corrosion protection.

- Connect the connector to the Alarm Horn.

• For reasons of clarity, the Alarm Horn is not depicted in the following illustrations and thus the connector is not connected.

- Guide clip - 2 - for Alarm Horn into body cutout - 1 -.





- Secure Alarm Horn with new shear bolts.

- Tighten shear bolts until bolt heads shear off.

- Install right front wheel housing liner.