Relay assignment of fuse and relay box in trunk - GF54.15-P-1257-04CA

MODEL 207.3/4 

Fig 1: Rear SAM Control Unit With Fuse And Relay Module - Model 207.3/4

Courtesy of MERCEDES-BENZ USA

Relay Slot Identification	Designation
A	Circuit 15 relay (N10/2kA)
B	Circuit 15R relay (1) (N10/2kB)
C	Rear window heater relay (N10/2kC)
D	Valid for diesel engine:  Fuel pump relay (N10/2kD)
E	Reserve
F	Valid without code (275) Memory package (driver seat, steering column, mirrors):  Seat adjustment relay (N10/2kF)
G	Circuit 15R relay (2) (N10/2kG)