Assembly overview – interior monitor
1 - Alarm horn -H12-
❏ → Rep. gr.96; Removing and installing alarm horn [H12]
2 - Bracket for alarm horn -H12-
3 - Shear nut
❏ Renew after removing
4 - Anti-theft alarm sensor -G578-
❏ → Rep. gr.96; Removing and installing anti-theft alarm sensor [G578]
5 - On-board supply control unit -J519-
❏ → Chapter „Removing and installing onboard supply control unit [J519]“
Removing and installing alarm horn [H12]
Alarm horn -H12- is referred to hereafter as alarm horn.
Removing
– Remove plenum chamber cover → General body repairs, exterior; Rep. gr.50; Plenum chamber bulkhead; Removing and installing plenum chamber cover.
Note
The shear nut -3- cannot be removed without being damaged.
– Destroy shear nut -3- using suitable workshop equipment.
– Remove alarm horn -2-.
– Disconnect electrical connector -1-.
– Remove alarm horn -2-.
Installing
Install in the reverse order of removal, observing the following:
– Tighten new shear nut until head shears off.
Tightening torques
♦ → Rep. gr.96; Assembly overview – interior monitoring
Removing and installing anti-theft alarm sensor [G578]
Anti-theft alarm sensor -G578- will henceforth be referred to as “sensor”.
Front roof module -WX3- is referred to hereafter as roof module.
Removing
– Remove front roof module → Rep. gr.96; Removing and installing front roof module [WX3].
– Release locking devices -2- in direction of -arrow A-.
– Remove sensors -1- from roof module.
– Release locking devices -2- in direction of -arrow A-.
– Remove sensor -1-.
Installing
Install in the reverse order of removal, observing the following:
If the anti-theft alarm sensor has been renewed:
– Carry out required function/functions using → Vehicle diagnostic tester → Rep. gr.00; Access to diagnoses.
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