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Assignment Of Engine Fuse And Relay Module - GF54.15-P-1256-32RF

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Model 205 up to Model year 2019 

Model 253 (except 253.99) up to Model year 2020 

Fig 1: Engine Fuse And Relay Module - Model 253 (Except 253.99) Up To Model Year 2020
G14201065Courtesy of MERCEDES-BENZ USA
Slot Fuse Identification Circuit Line ID (line fused) Fused component Rating in amperes (A)
100 Electrical fuse 100 (K40/8f100) 87 4.0 RDGN Model 205 with code ME04 (Mild hybrid drive) or code ME06 (Hybrid drive 60 KW variant (including plug-in)): 
Vacuum pump (M56)
40
101 Electrical fuse 101 (K40/8f101) 87M 1.5 RDGN Engine 626, 642, 651: 
CDI control unit (N3/9)
15
      1.5 RDGN Engine 274, 276: 
ME-SFI [ME] control unit (N3/10)
15
      2.5 RDGN Engine 177: 
ME-SFI [ME] control unit (N3/10)
20
102 Electrical fuse 102 (K40/8f102) 87M 2.5 RDBU Engine 626, 642: 
CDI control unit (N3/9)
20
      1.5 RDBU or 2.5 RDBU Engine 651: 
CDI control unit (N3/9)
 
      4.0 RDBU Engine 274, 276: 
ME-SFI [ME] control unit (N3/10)
 
      4.0 RDBU Engine 177: 
ME-SFI [ME] control unit (N3/10)
25
103 Electrical fuse 103 (K40/8f103) 87M 1.5 RDGY Engine 274: 
ME-SFI [ME] control unit (N3/10)
15
      1.5 RDGY Engine 651: 
CDI control unit (N3/9)
15
      2.5 RDGY Engine 177: 
ME-SFI [ME] control unit (N3/10)
20
104 Electrical fuse 104 (K40/8f104) 87M 1.5 RDYE Engine 274: 
ME-SFI [ME] control unit (N3/10)
15
      1.5 RDYE Engine 626, 651: 
CDI control unit (N3/9)
15
      4.0 RDYE Engine 276: 
ME-SFI [ME] control unit (N3/10)
15
105 Electrical fuse 105 (K40/8f105) 87 1.5 BKRD Transmission 722.9 (except 722.930): 
Automatic transmission fluid auxiliary oil pump control unit (N89)
15
106 Electrical fuse 106 (K40/8f106) 87 - Spare -
107 Electrical fuse 107 (K40/8f107) 87M 6.0 RD Engine 274: 
Electric coolant pump (M75/11)
60
108 Electrical fuse 108 (K40/8f108) 30 1.5 RDBU With CODE 631 (Static left-hand traffic LED headlamp) or CODE 632 (Static right-hand traffic LED headlamp): 
Left front lamp unit (E1)
20
      2.5 RDYE 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)
 
109 Electrical fuse 109 (K40/8f109) 30 2.5 RDBK Wiper motor (M6/1) 30
110 Electrical fuse 110 (K40/8f110) 30 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
      2.5 RDBU 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) 50 2.5 VT or 2.5
VTWH
Model 253: 
Starter (M1)
30
112 Electrical fuse 112 (K40/8f112) 15 1.0 RD With code ME05 (HYBRID DRIVE 80KW-VARIANT (INCLUDING PLUGIN)) or Model 205 with code ME06 (hybrid drive 60 KW variant (including plugin)): 
Accelerator pedal sensor (B37)
15
113 Electrical fuse 113 (K40/8f113) 15 - Spare -
114 Electrical fuse 114 (K40/8f114) 30 4.0 RDWH Model 205 with code 483 (ADVANCED AGILITY package) and code 489 (AIRmatic): 
AIRMATIC compressor (A9/1)
40
        Model 253 with code 489 (AIR BODY CONTROL): 
AIR BODY CONTROL compressor (A9/1)
 
115 Electrical fuse 115 (K40/8f115) 87 1.0 YE or 1.5 YE Left fanfare horn (H2)
Right fanfare horn (H2/1)
15
116 Electrical fuse 116 (K40/8f116) 30 - Spare -
117 Electrical fuse 117 (K40/8f117) 30 - Spare -
118 Electrical fuse 118 (K40/8f118) 87 0.5 OGRD Model 205 except code ME04 (mild hybrid drive) and except code ME06 (hybrid drive 60 KW variant (including plugin)), Model 205, 253 except code ME05 (HYBRID DRIVE 80KW-VARIANT (INCLUDING PLUGIN)): 
Electronic Stability Program control unit (N30/4)
5
119 Electrical fuse 119 (K40/8f119) 87C 1.5 PKWH Powertrain control unit (N127) 15
120 Electrical fuse 120 (K40/8f120) 87C 0.5 RDGN Except AMG vehicles: 
Circuit 87/C1 end sleeve (Z141/1z1)
5
      1.0 RDGN AMG vehicles: 
Circuit 87/C1 end sleeve (Z141/1z1)
15
121 Electrical fuse 121 (K40/8f121) 15 0.5 OGBU Electronic Stability Program control unit (N30/4) 5
122 Electrical fuse 122 (K40/8f122) 30 0.5 RDYE Model 205: 
CPC relay (K40/8kJ)
5
      0.35 RDYE Model 253: 
CPC relay (K40/8kJ)
 
123 Electrical fuse 123 (K40/8f123) 15 - Spare -
124 Electrical fuse 124 (K40/8f124) 15 - Spare -
125 Electrical fuse 125 (K40/8f125) 15 0.5 BKRD Front SAM control unit (N10/6) 5
126 Electrical fuse 126 (K40/8f126) 15 0.5 PKRD Powertrain control unit (N127) 5
        Model 253 or engine 642: 
CDI control unit (N3/9)
 
127 Electrical fuse 127 (K40/8f127) 50 0.35 VTWH Engine 642 with code B03 (ECO start/stop function): 
Voltage dip limiter (R62)
5
128 Electrical fuse 128 (K40/8f128) 15 0.5 PKRD Left front lamp unit (E1)
Right front lamp unit (E2)
5
129 Electrical fuse 129 (K40/8f129) 15 - Model 205 with code ME04 (Mild hybrid drive) or code ME06 (Hybrid drive 60 KW variant (including plug-in)), Model 205, 253 with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUG-IN)): 
Starter circuit 50 relay (K40/8kH)
30
129A Electrical fuse 129a (K40/8f129a) 15 - Model 205 except code ME04 (mild hybrid drive) and except code ME06 (hybrid drive 60 KW variant (including plugin)), Model 205, 253 except code ME05 (HYBRID DRIVE 80KW-VARIANT (INCLUDING PLUGIN)): 
Starter circuit 50 relay (K40/8kH)
30
Relay Identification Designation
G Model 253: 
Engine compartment circuit 15 relay (K40/8kG)
H Starter circuit 50 relay (K40/8kH)
I Model 205 with code ME04 (Mild hybrid drive) or code ME06 (Hybrid drive 60 KW variant (including plug-in)): 
Vacuum pump relay (+) (K40/8kI)
J CPC relay (K40/8kJ)
K Transmission 722.9 (except 722.930): 
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 Model 205 with code ME04 (Mild hybrid drive) or code ME06 (Hybrid drive 60 KW variant (including plug-in)), Model 205, 253 with code ME05 (HYBRID DRIVE 80KW VARIANT (INCLUDING PLUG-IN)): 
Starter circuit 15 relay (K40/8kO)
P Engine 274.9: 
Coolant pump relay (K40/8kP)
Q Model 205 with code ME04 (Mild hybrid drive) or code ME06 (Hybrid drive 60 KW variant (including plug-in)): 
Relay Q (K40/8kQ)
R Model 205 with code 483 (ADVANCED AGILITY package) and code 489 (AIRmatic): 
AIRMATIC relay (K40/8kR)
  Model 253 with code 489 (AIR BODY CONTROL): 
Relay R (K40/8kR)