(Assignment Of Engine Fuse And Relay Module - GF54.15-P-1256-32RFM)

Model 205 as of model year 2019

Model 253.99

Courtesy of MERCEDES-BENZ USA

Relays J, K, L, M and O are located inside the housing and firmly soldered onto the PCB.

Slot	Fuse	Circuit	Wire Identification	Fused component	Fuse rating (A)
100	Electrical fuse 100 (K40/8f100)	87	4.0 RDGN	With code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUG-IN)) or model 253.99: Vacuum pump (M56)	40
101	Electrical fuse 101 (K40/8f101)	87M	1.5 RDGN	Engines 264, 274, 276, 654: Circuit 87/2 end sleeve (Z7/48z1)	15
			2.5 RDGN	Engine 177: Circuit 87/2 end sleeve (Z7/48z1)	20
102	Electrical fuse 102 (K40/8f102)	87M	4.0 RDBU	Engine 654: Connector sleeve, circuit 87/1 (Z7/47z1)	20
				Engine 177: Connector sleeve, circuit 87/3 (Z7/75z1)	25
103	Electrical fuse 103 (K40/8f103)	87M	1.5 RDGY	Engines 264, 274, 276, 654: Connector sleeve, circuit 87/4 (Z7/73z1)	15
			2.5 RDGY	Engine 177: Connector sleeve, circuit 87/4 (Z7/73z1)	20
104	Electrical fuse 104 (K40/8f104)	87M	4.0 RDYE	Engines 264, 274, 276, 654: Connector sleeve, circuit 87/3 (Z7/75z1)	15
105	Electrical fuse 105 (K40/8f105)	87	-	Spare	-
106	Electrical fuse 106 (K40/8f106)	87	-	Spare	-
107	Electrical fuse 107 (K40/8f107)	87	6.0 RD	Engines 264, 274: Electric coolant pump (M75/11)	60
108	Electrical fuse 108 (K40/8f108)	15M	1.0 RD	Model 253.99: Accelerator pedal sensor (B37)	15
109	Electrical fuse 109 (K40/8f109)	15M	0.75 RDGN	Model 253.99 with code B53 (Acoustic presence indicator): Sound generator (H4/16)	10
110	Electrical fuse 110 (K40/8f110)	30t	1.5 RDYE	With CODE 631 (Static left-hand traffic LED headlamp) or CODE 632 (Static right-hand traffic LED headlamp): Right front lamp unit (E2)	20
				With CODE 640 (High Performance LED) or CODE 641 (Dynamic left-hand traffic LED headlamp) or CODE 642 (Dynamic right-hand traffic LED headlamp)): Left front lamp unit (E1) Right front lamp unit (E2)
111	Electrical fuse 111 (K40/8f111)	30t	1.5 RDBU	Model 205 with code 631 (LED static headlamp, left-hand traffic) or code 632 (LED static headlamp, right-hand traffic): Left front lamp unit (E1)	20
				With CODE 640 (High Performance LED) or CODE 641 (Dynamic left-hand traffic LED headlamp) or CODE 642 (Dynamic right-hand traffic LED headlamp)): Left front lamp unit (E1) Right front lamp unit (E2)
			2.5 RDBK	Model 253.99: Wiper motor (M6/1)	30
112	Electrical fuse 112 (K40/8f112)	30t	2.5 RDBK	Model 205: Wiper motor (M6/1)	30
113	Electrical fuse 113 (K40/8f113)	50	2.5 VTWH	Model 205 except code B01 (48V technology): Starter (M1)	30
114	Electrical fuse 114 (K40/8f114)	87	4.0 RDWH	With code 483 (ADVANCED AGILITY package) or code 489 (AIRMATIC) or on model 253.99: AIRMATIC compressor (A9/1)	40
115	Electrical fuse 115 (K40/8f115)	87	-	Spare	-
116	Electrical fuse 116 (K40/8f116)	87	0.5 OGRD	With code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUG-IN)): Electronic Stability Program control unit (N30/4)	5
				Model 253.99: Powertrain control unit (N127)
117	Electrical fuse 117 (K40/8f117)	30t	-	Spare	-
118	Electrical fuse 118 (K40/8f118)	87C	1.5 PKWH	Model 205: Circuit 87C (Z141/2z1) end sleeve	15
				Model 253.99: Exhaust gas recirculation cooler bypass switchover valve (Y85) Rear electric machine coolant pump (M75/9)
119	Electrical fuse 119 (K40/8f119)	87C	0.5 RDGN	Model 205: Powertrain control unit (N127)	5
			1.5 RDGN	Model 253.99: Circuit 87/C1 end sleeve (Z141/1z1)	15
120	Electrical fuse 120 (K40/8f120)	30t	-	Spare	-
121	Electrical fuse 121 (K40/8f121)	15M	0.75 RD	Park pawl capacitor (C8)	10
122	Electrical fuse 122 (K40/8f122)	15M	-	Spare	-
123	Electrical fuse 123 (K40/8f123)	15M	0.5 BKRD	Front SAM control unit (N10/6)	5
124	Electrical fuse 124 (K40/8f124)	30t	0.35 RDYE	Model 253.99: CPC relay (K40/8kJ)	5
125	Electrical fuse 125 (K40/8f125)	15M	0.5 PKRD	Powertrain control unit (N127)	5
				Gasoline engine: ME-SFI [ME] control unit (N3/10)
				Diesel engine: CDI control unit (N3/9)
126	Electrical fuse 126 (K40/8f126)	15M	0.5 PKRD	Except code 631 (Static left-hand traffic LED headlamp) and except code 632 (Static right-hand traffic LED headlamp) and except code 640 (High-performance LED) and except code 641 (Dynamic left-hand traffic LED headlamp) and except code 642 (Dynamic right-hand traffic LED headlamp): Left front lamp unit (E1) Right front lamp unit (E2)	5
				Model 205: Exterior lights switch (S1)
127	Electrical fuse 127 (K40/8f127)	50	0.5 VTWH	Model 205 except code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUG-IN)) and except code B01 (48V technology): Voltage dip limiter (R62)	5
128	Electrical fuse 128 (K40/8f128)	15M	0.5 OGBU	Except code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUG-IN)) and except code B01 (48V technology): Electronic Stability Program control unit (N30/4)	5
			0.5 PKRD	Model 253.99: Exterior lights switch (S1)
129	Electrical fuse 129 (K40/8f129)	15M	0.5 RDBK	With code U82 (USB charge socket in rear): Rear USB electrical connection (X39/75)	5
			0.5 OGBU	Model 253.99: Electronic Stability Program control unit (N30/4)
130	Electrical fuse 130 (K40/8f130)	15M	-	Spare	-
132	Electrical fuse 132 (K40/8f132)	87	0.5 OG	Model 253.99: Rear axle electronic level control system control unit (N97)	5
133	Electrical fuse 133 (K40/8f133)	30t	1.5 RDBU	Model 253.99: Left front lamp unit (E1)	20

Relays	Designation
G	Engine compartment circuit 15 relay (K40/8kG)
H	Model 205 except code B01 (48V technology): Starter circuit 50 relay (K40/8kH)
I	With code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUG-IN)) or model 253.99: Vacuum pump relay (+) (K40/8kI)
J	CPC relay (K40/8kJ)
K	Oil pump relay (K40/8kK)
L	Horn relay (K40/8kL)
M	Wiper park position heater relay (K40/8kM)
N	Circuit 87M relay (K40/8kN)
O	Starter circuit 15 relay (K40/8kO)
P	Engine 274.9: Coolant pump relay (K40/8kP)
Q	With code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUG-IN)) or model 253.99: Relay Q (K40/8kQ)
R	With code 483 (ADVANCED AGILITY package) or code 489 (AIRMATIC) or model 253.99: AIRMATIC relay (K40/8kR) (model 205), relay R (K40/8kR) (model 253)