Removing and installing ATA alarm signal siren - AR80.50-P-9840RK

MODEL 231 with CODE 882 (Interior monitoring with tow-away protection) 

Fig 1: ATA Alarm Signal Siren Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Deactivate anti-theft alarm system (ATA)	The anti-theft alarm system is deactivated when the central locking is open.
2	Remove washer fluid reservoir (1)	Remove water fluid reservoir (1) only until alarm siren (H3/1) is accessible. Secure washer fluid reservoir (1) against falling down.	AR82.35-P-6000RK
3	Disconnect electrical connector (2)
4	Remove alarm siren (H3/1) from washer fluid reservoir (1)	To do so, unscrew nut (3). Replace nut (3).
5	Install in the reverse order