Remove/install main fuse of positive line - AR54.15-P-0051MCV

MODEL 451.3/4 

Main fuse of SAM [signal acquisition and actuation module] control unit 

Fig 1: Identifying Main Fuse Of Positive Line Remove/Install Components

Courtesy of MERCEDES-BENZ USA

	Remove/install
1	Disconnect battery ground line		AR54.10-P-0003MCC
2	Invert casing (1) backwards
3	Unlock cover (2) in the marked area (arrow) and fold up
4	Unscrew nuts (3) and remove SAM prefuse (F91)	Replace self-locking nuts (3).
5	Install in the reverse order