Table of contents: Ultrasonic interior security system ↓ Removal and installation the… ↓ Anti-theft alarm sensor "G578",… ↓ Removal and installation the "H12"… ↓
Ultrasonic interior security system
Transmitter-receiver module 1 of the interior security system "G303" and used protection against unauthorized towing and anti-theft system. the J529 is combined into a single component, the G578 anti-theft alarm sensor. Therefore, the center console, used with the J393 comfort system, with the anti-theft alarm option installed, only has two LIN bus subscribers.
1. Alarm signal "H12".
2. Nut: 5 Nm.
3. Nut: 7 Nm.
4. Holder for the sound signal of the anti-theft alarm "N12".
5. Central used comfort system "J393".
6. Control unit bracket.
7. Antenna for central locking and anti-theft alarm "R47": built into the rear window.
8. Anti-theft alarm sensor "G578".
9. Front interior light/reading light.
10. System sensor. front passenger compartment protection: can only be replaced together with the anti-theft alarm sensor "G578".
Removal and installation the interior security system deactivation switch "E183"/anti-theft alarm switch "E217"
Turn off the ignition. Carefully remove plug "1" from the door trim "arrow" using a small screwdriver "2". Disconnect the plug connection.

Carefully release the arrow latches with a small screwdriver. Remove the interior security deactivation switch "E183"/anti-theft alarm switch "E217" "pos. 1" from the panel "2" in the rear direction.

Installation in reverse order.
Anti-theft alarm sensor "G578", removal and installation
Remove the front interior/individual lighting lamp. Disconnect the "arrow B" clamps and remove the anti-theft system sensor. "pos. 1" from the interior lighting lamp/individual lighting lamp. Release electrical line "2". Unlock the clamps "arrow A" and remove the anti-theft alarm system sensor. "G578" "pos. 3" from the interior lighting lamp/individual lighting lamp.

Press the fastening clamps towards "arrow A" and remove the anti-theft system sensor. "G578" "pos. 1" from fastening "2". Unlock fastening clamps "arrow B" and remove sensors "3" of the anti-theft system. from the fastening.

Installation in reverse order. Install interior light/reading lamp in lane. parts of the cabin.
Removal and installation the "H12" alarm
Cars manufactured before 05.2008: Unlock and remove the water drainage box casing "1" and "2". Ignore "Pos. 3" and "arrow".

For vehicles manufactured since 06.2008: Unscrew screws "3". Unfasten clips "2" from the mountings and remove the water drainage box cover "1".

All: Unscrew nut "3". Disconnect plug connection "1". Pull out the alarm system horn upwards. "H12" "pos. 2".

Installation in reverse order. Install the retainer into the recess in the bracket.
(Content source: the specified website «AUDIMANUAL.ru»)
