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

MODEL 166 as of model year 2016 

MODEL 292 

Assignment of fuse and relay module in engine compartment 

IMPORTANT ATO and maxi fuses may only be replaced by fuses that meet the Mercedes-Benz standard MBN10153-2.

IMPORTANT The designations 201 to 241 correspond to the fuses f201 to f241 below.

Fig 1: Engine Compartment Fuse And Relay Module - Model 166 As Of Model Year 2016
G11969319Courtesy of MERCEDES-BENZ USA
Fuse Identification Clamping device Line ID (line fused) Fused function Rating in amperes (A)
f201 30 - Spare -
f202 30 2.5 RD Stationary heater unit (A6) (with CODE 228 (Stationary heater)) 20
f203 30 0.35 RD Alarm siren (H3/1) (with CODE 551 (Anti-theft alarm system (ATA [EDW]))) 5
f204 30 2.5 RDWH Electronic Stability Program control unit (N30/4) or regenerative braking system control unit (N30/6) (with CODE ME05 (HYBRID DRIVE 80KW-VARIANT (INCLUDING PLUGIN))) 25
f205 15 1.5 BUWH Switched via horn relay (F58kJ): Left horn (H2), right horn (H2/1) 15
f206 30 - Spare 15
f207 30 2.5 RDWH Via circuit 30/2 connector sleeve (front lamp unit) (Z194/5) to the left front actuation module, LED exterior lighting (E1n7) and the right front actuation module, LED exterior lighting (E2n7) (with CODE 640 (High-performance LED) or CODE 641 (Dynamic left-hand traffic LED headlamp) or CODE 642 (Dynamic right-hand traffic LED headlamp)) 20
f208 30 0.5 RDWH Coolant trailing pump relay (K108/3) (with engine 278 and engine 157) 7.5
f209 30 0.35 RDWH Via turbocharger relay (F58kO) (control circuit) to powertrain control unit (N127) (on model 166.063) 5
f210 30 - Spare -
f211 30 2.5 RDWH Via circuit 30/1 connector sleeve (front lamp unit) (Z194/4) to left headlamp control unit (E1n9) and right headlamp control unit (E2n9) (with code 640 (High-performance LED) or code 641 (Dynamic LED headlamp, left-hand traffic) or code 642 (Dynamic LED headlamp, right-hand traffic)) 20
f212 50 0.35 VTWH Voltage dip limiter (R62) (with CODE B03 (ECO start/stop function)) 7.5
f213 30z 0.5 RDWH CDI control unit (N3/9) (with engine 642, 651) 7.5
      ME-SFI [ME] control unit (N3/10) (with engine 157, 276, 278)  
f214 87 1.5 PKYE ME-SFI [ME] control unit (N3/10) (with engine 157, 276, 278) 15
    1.0 PKBK CDI control unit (N3/9) (with engine 651)  
    1.0 PKYE NOx sensor control unit downstream of diesel particulate filter (N37/7), NOx sensor control unit downstream of SCR catalytic converter (N37/8) (with CODE U77 (BLUETEC (SCR) diesel exhaust treatment)))  
f215 87 1.5 PKBK Engine/engine compartment electrical connector (X26/31) (with engine 157, 278) 15
      Interior and engine wiring harness electrical connector (X26) (with engine 276)  
      Engine/engine compartment electrical connector (X26/31) via circuit 87 connector sleeve D3 (Z7/75), radiator shutters actuator (Y84) (with engine 642)  
      Engine/engine compartment electrical connector (X26/31), radiator shutters actuator (Y84) (with engine 651)  
f216 87 1.5 PKBU Circuit 87D2 connector sleeve (Z7/48) (with engine 157, 276, 278) 15
      CDI control unit (N3/9), engine/engine compartment electrical connector (X26/31), left switchable engine mount (Y123), right switchable engine mount (Y123/1) (with engine 642)  
      Fan motor (M4/7), CDI control unit (N3/9), engine/engine compartment electrical connector (X26/31), left switchable engine mount (Y123), right switchable engine mount (Y123/1) (with engine 651)  
f217 87 1.5 PK Engine/engine compartment electrical connector (X26/31) (with engine 157, 276, 278) 20
    2.5 PK CDI control unit (N3/9), engine/engine compartment electrical connector (X26/31) (with engine 642, 651)  
f218 87 - Spare -
f219 87 0.75 RDBU Charge air cooler circulation pump (M44) (with engine 157, 276, 278) 10
f220 87 1.0 PKGN Low temperature circuit switchover valve (Y73/1) (with CODE ME05 (HYBRID DRIVE 80KW-VARIANT (INCLUDING PLUGIN))) 15
f221 30 - Spare -
f222 87 - Spare 20
f223 30 - Spare -
f224 15 0, 35BK Sound generator (H4/16) (with CODE ME05 (HYBRID DRIVE 80KW-VARIANT (INCLUDING PLUGIN))) 5
f225 15 - Spare 10
f226 15 - Spare 15
f227 15 - Spare 15
f228 15 2.5 BK Connected through the spray nozzle hose heater relay (K129): Top spray nozzle hose heater (R2/5), junction box for windshield washer system (R2/6), left wiper blade heater (R2/12) and right wiper blade heater (R2/13) (with code 874 (MAGIC VISION CONTROL)) 25
f229 15 1.0 BK Left front lamp unit (E1) 5
f230 15 0.5 PKWH Electronic Stability Program control unit (N30/4) or regenerative braking system control unit (N30/6) (with CODE ME05 (HYBRID DRIVE 80KW-VARIANT (INCLUDING PLUGIN))) 5
f231 15 0.5 BKBU Right front lamp unit (E2) 5
f232 15 1.0 PK Fully integrated transmission control unit (Y3/8n4) 15
      Transmission oil auxiliary pump control unit (N89) (with CODE 233 (DISTRONIC PLUS) or CODE 237 (Active Blind Spot Assist))  
f233 15 - Spare -
f234 15 0.35 BKBU DISTRONIC electric controller unit (A89) (for code 239 (DISTRONIC PLUS)) 5
      Front long-range radar sensor (B92) (with code 23P (Driving assistance package plus))  
f235 87 1.5 GY Wiper park position heater (R2/10) 20
f236 30 4.0 RDWH Vacuum pump relay (+) (K109) (with CODE ME05 (HYBRID DRIVE 80KW-VARIANT (INCLUDING PLUGIN))) 40
f237 30 2.5 RDWH Intelligent servo module for DIRECT SELECT (A80) (with CODE 427 (7G-TRONIC)) 30
f238 87 4.0 GYWH Switched through the AIRmatic relay (F58kT): AIRmatic compressor (A9/1) (with CODE 489 (AIRmatic)) 60
f239 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
f240a 15 2.5 VTWH Starter (M1) (without CODE B03 (ECO start/stop function)) 30
f240b 15 2.5 VTWH Engine compartment prefuse box (F32/3) (with CODE B03 (ECO start/stop function) or with CODE ME05 (HYBRID DRIVE 80KW-VARIANT (INCLUDING PLUGIN)))  
f241 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 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 AIRmatic relay (F58kT) (with CODE 489 (AIRmatic))