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Assignment Of Engine Compartment Fuse And Relay Module - GF54.15-P-1256-36GR

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MODEL 166 up to model year 2016 

IMPORTANT When "ATO" and "MAXI" fuses are changed, they must always be replaced with fuses that comply with the Mercedes-Benz standard: MBN10153-2.

Fig 1: Engine Compartment Fuse And Relay Module - Model 166 Up To Model Year 2016
G12079264Courtesy of MERCEDES-BENZ USA
Slot Fuse Identification Circuit Line ID (line fused) Fused component Rating in amperes (A)
201 Fuse 201 (F58f201) 30 - Spare -
202 Fuse 202 (F58f202) 30 2.5 RD Valid with CODE 228 (Stationary heater):  Stationary heater unit (A6) 20
203 Fuse 203 (F58f203) 30 0.35 RD Valid with CODE 551 (Anti-theft alarm system (ATA [EDW])):  Alarm siren (H3/1) 5
204 Fuse 204 (F58f204) 30 2.5 RDWH Electronic Stability Program control unit (N30/4) 25
205 Fuse 205 (F58f205) 15 1.5 BUWH Switched via the horns relay (F58k): Left fanfare horn (H2) Right fanfare horn (H2/1) 15
206 - 212 Fuse 206 (F58f206) - Fuse 212 (F58f212) 30 - Spare -
213 Fuse 213 (F58f213) 30z 0.5 RDWH Valid for engine 642, 651:  CDI control unit (N3/9) 7.5
    30z 0.5 RDWH Valid for engine 157, 276, 278:  ME-SFI control unit (N3/10) 7.5
214 Fuse 214 (F58f214) 87 1.5 PKYE Valid for engine 157, 276, 278:  ME-SFI control unit (N3/10) 15
    87 1.0 PKBK Valid with engine 651:  CDI control unit (N3/9) 15
    87 1.0 PKYE Valid with CODE U42 (BlueTEC (SCR) diesel exhaust treatment)):  NOx sensor control unit downstream of diesel particulate filter (N37/7) NOx sensor control unit downstream of SCR catalytic converter (N37/8) 15
215 Fuse 215 (F58f215) 87 1.5 PKBK Valid for engine 157, 278:  Engine/engine compartment electrical connector (X26/31) (pin 7) 15
    87 1.5 PKBK Valid with engine 276:  Interior and engine wiring harness electrical connector (X26) (pin 7) 15
    87 1.5 PKBK Valid with engine 642:  Engine/engine compartment electrical connector (X26/31) (pin 7) via circuit 87 D3 connector sleeve (Z7/75) Radiator shutters actuator (Y84) 15
    87 1.5 PKBK Valid with engine 651:  Engine/engine compartment electrical connector (X26/31) (pin 7) Radiator shutters actuator (Y84) 15
216 Fuse 216 (F58f216) 87 1.5 PKBU Valid for engine 157, 276, 278:  Connector sleeve for circuit 87D2 (Z7/48) 15
    87 1.5 PKBU Valid with engine 642:  CDI control unit (N3/9) Engine/engine compartment electrical connector (X26/31) (pin 6) Left switchable engine mount (Y123) Right switchable engine mount (Y123/1) 15
    87 1.5 PKBU Valid with engine 651:  Fan motor (M4/7) CDI control unit (N3/9) Engine/engine compartment electrical connector (X26/31) (pin 6) Left switchable engine mount (Y123) Right switchable engine mount (Y123/1) 15
217 Fuse 217 (F58f217) 87 1.5 PK Valid for engine 157, 276, 278:  Engine/engine compartment electrical connector (X26/31) (pin 5) 20
    87 2.5 PK Valid for engine 642, 651:  CDI control unit (N3/9) Engine/engine compartment electrical connector (X26/31) (pin 5) 20
218 Fuse 218 (F58f218) 87 - Spare -
219 Fuse 219 (F58f219) 87 0.75 RDBU Valid for engine 278, 157:  Charge air cooler circulation pump (M44) 10
220 - 223 Fuse 220 (F58f220) - Fuse 223 (F58f223) 30 - Spare -
224 - 228 Fuse 224 (F58f224) - Fuse 228 (F58f228) 15 - Spare -
229 Fuse 229 (F58f229) 15 1.0 BK Left front lamp unit (E1) 7.5
230 Fuse 230 (F58f230) 15 0.5 PKWH Electronic Stability Program control unit (N30/4) 5
231 Fuse 231 (F58f231) 15 0.5 BKBU Right front lamp unit (E2) 7.5
232 Fuse 232 (F58f232) 15 1.0 PK Fully integrated transmission control unit (Y3/8n4) 15
    15 1.0 PK Valid with CODE B03 (ECO start/stop function):  Automatic transmission fluid auxiliary pump control unit (N89) 15
233 Fuse 233 (F58f233) 15 1.0 PKWH Valid with CODE 615 (Bi-xenon headlamp unit with integrated curve illumination) or CODE 621 (Intelligent light system (left-hand traffic)) or CODE 622 (Intelligent light system (right-hand traffic)):  Headlamp control unit (N71/1) 15
234 Fuse 234 (F58f234) 15 0.35 BKBU Valid with CODE 233 (DISTRONIC PLUS) or CODE 237 (Active Blind Spot Assist):  DISTRONIC electric controller unit (A89) 5
235 Fuse 235 (F58f235) 15 1.5 GY Wiper park position heater (R2/10) 20
236 Fuse 236 (F58f236) 30 - Spare -
237 Fuse 237 (F58f237) 30 2.5 RDWH Valid for transmission 722.9:  Intelligent servo module for DIRECT SELECT (A80) 15
238 Fuse 238 (F58f238) 87 4.0 GYWH Valid with CODE 489 (AIRmatic (air suspension with level adjustment and adaptive damping system ADS)):  Switched via the AIRmatic relay (F58kT): AIRmatic compressor (A9/1) 40
239 Fuse 239 (F58f239) 30 2.5 GYWH Switched via the windshield wiper ON/OFF relay (F58kL) and the 1/2 wiper speed relay (F58kK): Wiper motor (M6/1) 30
240a Electrical fuse 240a (F58f240a) 30 2.5 VTWH Valid except CODE B03 (ECO start/stop function):  Starter (M1) 30
240b Electrical fuse 240b (F58f240b) 15 2.5 VTWH Valid with CODE B03 (ECO start/stop function):  Engine compartment prefuse box (F32/3) 30
241 Electrical fuse 241 (F58f241) 30 - Spare -
Relay Slot Identification Designation
J Fanfare horn relay (F58kJ)
K Wiper speed 1/2 relay (F58kK)
L Windshield wiper ON/OFF relay (F58kL)
M Starter circuit 50 relay (F58kM)
N Circuit relay 87M (F58kN)
O Valid for turbocharger:  Turbocharger relay (F58kO)
P Backup relay (F58kP)
Q Circuit 15 relay (not latched) (F58kQ)
R Circuit 15 relay (F58kR)
S Wiper park position heater relay (F58kS)
T Valid with CODE 489 (AIRmatic (air suspension with level adjustment and adaptive damping system ADS)):  AIRmatic relay (F58kT)