Fuse assignment of fuse box in luggage compartment - GF54.15-P-1256-05LE

MODEL 221.0 /1 with ENGINE 642.8 as of Model Year 2011 /AEJ 10 

Fig 1: Adblue® Fuse Block - Model 221.0 /1 With Engine 642.8 As Of Model Year 2011

Courtesy of MERCEDES-BENZ USA

Fuse Identification	Terminal	Cable ID (fused line)	Fused function	Fuse rating in amperes (A)
A	30	0.75 RDBK	AdBlue® control unit (N118/5)	7.5
B	30	1.5 RD	Heater circuit 1	20
C	30	1.5 RDGN	Heater circuit 2	20
D	-	-	Spare	-