Remove/install quiescent current cutout relay in vehicle power supply control unit - AR54.15-P-1266SX

MODEL 216.3 up to 1.6.08 except CODE (809) Model year 2009 

MODEL 221.0 /1 up to 1.6.08 except CODE (809) Model year 2009 

Illustrated on model 221 

Fig 1: Identifying Quiescent Current Cutout Relay And Vehicle Power Supply Control Unit

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Detach vehicle power supply control unit (N82/1) and swivel to one side with electrical lines connected (arrow)	Disconnect ground line from starter battery and on-board electrical system battery.	AR54.21-P-0100SX
2	Open housing (1) of vehicle power supply control unit (N82/1)
3	Disconnect electrical connector (3)
4	Unscrew nuts (2)		*BA54.15-P-1002-01F
5	Remove quiescent current cutout relay (N82/1k1)
6	Install in the reverse order