Remove and reinstall switch group at overhead control panel control unit - AR82.20-P-1005TX

MODEL 219.3 with CODE (359) TELE AID emergency call system with CODE (551) Anti-theft alarm system (ATA) 

Fig 1: Identifying Overhead Control Panel Control Unit Switch Group Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/Install
1	Remove overhead control panel control unit (N70)		AR82.20-P-1000TX
2	Disconnect electrical connector (1) for SOS/ATA switch group (S93/3) at overhead control panel control unit (N70)
3	Using a suitable screwdriver, release SOS/ATA [ETW] switch group (S93/3) at retaining lugs (arrows) and remove	Use care when releasing retaining lugs (arrows) to prevent them from breaking.
4	Install in the reverse order