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Home >> Mercedes Benz >> 2018 >> SLC43 AMG >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical System, Equipment & Instruments - 172 Chassis - 1 Of 4 >> Basic Knowledge >> Fuse Assignment Of Fuse And Relay Box In Left Engine Compartment >> Fuse Assignment Of Fuse And Relay Box In Left Engine Compartment - GF54.15-P-1256-03RDA

Fuse Assignment Of Fuse And Relay Box In Left Engine Compartment - GF54.15-P-1256-03RDA

Model 172.4 up to model year 2017 

Illustration shows model 172.4 

Fig 1: Left Engine Compartment Fuse And Relay Box - Model 172.4 Up To Model Year 2017
G13847557Courtesy of MERCEDES-BENZ USA
Slot Fuse Identification Clamping device Line ID (line fused) Fused function Rating in amperes (A)
1 N10/1f1 30 2.5 RD Electronic Stability Program control unit (N30/4) 25
2 N10/1f2 30 2.5 RDVT Vario roof control control unit (N52) 30
3 N10/1f3 30 2.5 RDBU Vario roof control control unit (N52) 30
4 N10/1f4 15 1.5 BKWH Valid with CODE 615 (Bi-xenon headlamps with active curve lights) or CODE 621 (Intelligent Light System (left-hand traffic)) or CODE 622 (Intelligent Light System): 
Headlamp control unit (N71/1)
20
    15 1.5 BKBU Valid for diesel engine: 
Fuel filter condensation sensor with heating element (B76/1)
20
5 N10/1f5 15 0.75 PKRD Rear SAM control unit with fuse and relay module (N10/2) 7.5
6 N10/1f6 15 0.75 PK Valid for diesel engine: 
CDI control unit (N3/9)
10
    15 0.75 PK Valid for gasoline engine: 
ME-SFI control unit (N3/10)
10
7 N10/1f7 15 - Starter circuit 50 relay (N10/1kM) 20
8 N10/1f8 15R 0.75 BKYE Supplemental Restraint System control unit (N2/10) 7.5
9 N10/1f9 30g 1.5 BKYE Valid except CODE 301 (Smoker's package): 
Vehicle interior socket, front (X58/17)
15
    30g 1.5 BKYE Valid with CODE 301 (Smoker's package): 
Cigarette lighter with ashtray illumination (R3)
15
10 N10/1f10 15R 2.5 RDVT Wiper motor (M6/1) 30
    15R - Switched via backup relay (N10/1kL):
Wiper park position heater (R2/10)
30
11 N10/1f11 30g 0.5 RD Audio/COMMAND display (A40/8) 7.5
    30g 0.75 RD Audio/COMMAND control panel (A40/9) 7.5
12 N10/1f12 30g 0.75 RDVT Upper control panel control unit (N72/1)
ACC control and operating unit (N22/7)
7.5
13 N10/1f13 30g 0.75 RD Steering column tube module control unit (N80) 7.5
    30g 0.75 RDWH Valid with CODE 476 (Lane Keeping Assist), CODE 513 (Speed Limit Assist) or CODE (608 (Adaptive Highbeam Assist): 
Multifunction camera (A40/11)
7.5
14 N10/1f14 30g 0.75 BNBU Electronic Stability Program control unit (N30/4) 7.5
15 N10/1f15 30g 0.75 RDWH Supplemental Restraint System control unit (N2/10) 7.5
16 N10/1f16 30g 0.5 RDBK Valid with CODE 508 (Navigation box preinstallation) or CODE 509 (Navigation box): 
Navigation module electrical connector (X1/61)
5
    30g 0.5 RDYE Valid for transmission 722: 
Electronic selector lever module control unit (N15/5)
7.5
    30g 0.5 RDYE Valid with transmission 725: 
DIRECT SELECT INTERFACE (N150)
7.5
17 N10/1f17 30g 0.75 RDWH Valid up to 31.05.2012: 
Overhead control panel control unit (N70)
7.5
18 N10/1f18 30 0.75 RD Upper control panel control unit (N72/1) 7.5
    30 0.75 RD Overhead control panel control unit (N70) 7.5
    30 0.75 RDBK Valid with CODE B03 (ECO start/stop function): 
Backup relay (N10/1kΩ)
7.5
19 N10/1f19 30 1.5 RDBU Electric steering lock control unit (N26/5) Electronic ignition lock control unit (N73) 20
20 N10/1f20 30 4.0 RD Electronic Stability Program control unit (N30/4) 40
21 N10/1f21 15R 0.5 YEWH Switched through glove compartment lamp switch (S17/9): Glove compartment lamp (E13/1) 7.5
    15R 0.5 BKYE Valid with CODE U18 (Automatic child seat recognition (ACSR)): 
Front passenger seat occupied recognition and ACSR (B48)
7.5
    15R 0.5 BKYE Valid with CODE 494 (USA version): 
Weight sensing system (WSS) control unit (N110)
7.5
22 N10/1f22 87M 1.5 BKRD Fan motor for internal combustion engine and air conditioning with integrated control (M4/7) 15
    87M 1.5 BKRD Valid for engine 152, 271, 274, 651: 
Electrical connector for interior harness and engine wiring harness (X26)
15
    87M 1.5 BKRD Valid for engine 276: 
Engine compartment/vehicle interior electrical connector (X25/2)
15
    87M 2.5 BKRD Valid for engine 152, 271, 276, 651: 
Circuit 87 M2e connector sleeve (Z7/36)
15
    87M 1.5 RD Valid for engine 274: 
Connector sleeve, circuit 87/2 (Z7/48z1)
15
    87M 1.5 BKRD Valid for diesel engine: 
CDI control unit (N3/9)
15
    87M 2.5 BKRD Valid for diesel engine: 
Engine compartment/FFS [RBA] electrical connector (X25/7)
15
23 N10/1f23 87M 2.5 BK Valid for engine 152, 271, 274: 
Electrical connector for interior harness and engine wiring harness (X26)
20
    87M 1.5 RDBU Valid for engine 276: 
Engine compartment/vehicle interior electrical connector (X25/2)
20
    87M 2.5 RDBU Valid for diesel engine: 
Quantity control valve (Y94)
20
24 N10/1f24 87M 1.5 RDBU Valid for engine 152, 271: 
Electrical connector for interior harness and engine wiring harness (X26)
15
    87M 2.5 RDBU Valid for engine 274: 
Electrical connector for interior harness and engine wiring harness (X26)
15
    87M 1.5 RDBU Valid for engine 276: 
Engine compartment/vehicle interior electrical connector (X25/2)
15
    87M 0.5 BUBK Valid for engine 274: 
Coolant circulation pump relay (K60)
15
    87M 2.5 RDBU Valid for diesel engine: 
CDI control unit (N3/9)
25
    87M 2.5 RDBK Valid for diesel engine: 
Electrical connector for interior harness and engine wiring harness (X26)
25
25 N10/1f25 87 2.5 RDVT Valid for engine 152: 
Circuit 87 connector sleeve (Z7/73)
15
    87 2.5 RDVT Valid for engine 276: 
Circuit 87 M4e connector sleeve (Z7/99)
15
    87 2.5 RDVT Valid for engine 274: 
Circuit 87M1 connector sleeve (Z7/95z1)
15
    87 1.5 RDBU Valid for diesel engine: 
Oxygen sensor upstream of catalytic converter (G3/2)
15
    87M 0.75 RD Valid with engine 651.9 as of 01.06.2015 with CODE U77 (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
26 N10/1f26 30g 2.5 RD Valid with CODE 523 (MB Audio 20 radio) or CODE 510 (Audio 20 incl. CD changer): 
Radio (A2)
20
    30g 2.5 RD Valid with CODE 527 (COMMAND APS with single DVD drive (with navigation)) or CODE 512 (COMMAND APS with DVD changer): 
COMMAND controller unit (A40/3)
20
27 N10/1f27 30z 0.5 RDWH Valid for diesel engine:
CDI control unit (N3/9)
7.5
    30z 0.5 RDWH Valid for gasoline engine: 
ME-SFI control unit (N3/10)
7.5
28 N10/1f28 30 0.75 RDVT Instrument cluster (A1) 7.5
    30 0.75 BK Valid with CODE 246 (analog clock): 
Analog clock (A70/1)
7.5
29 N10/1f29 15 0.5 BKRD Right front lamp unit (E2) 10
30 N10/1f30 15 0.5 BKRD Left front lamp unit (E1) 10
31A N10/1f31A 15R 1.0 BK Switched through the horns relay (N10/1kO): Left fanfare horn (H2) Right fanfare horn (H2/1) 15
31B N10/1f31B 30 1.0 BK Switched through the horns relay (N10/1kO): Left fanfare horn (H2) Right fanfare horn (H2/1) 15
32 N10/1f32 30 4.0 RDWH Valid with engine 271 or with engine 651.9 as of 01.06.2015 
with CODE U77 (BLUETEC (SCR) diesel exhaust treatment): 
Switched through the secondary air injection/AdBlue® relay (N10/1 kP):
Electric air pump (M33) (engine 271) AdBlue® control unit (N118/5) (engine 651 as of 01.06.2015 with CODE U77 (BLUETEC (SCR) diesel exhaust treatment))
40
33 N10/1f33 87F 1.0 RDBK Valid for transmission 722: 
Fully integrated transmission control unit (Y3/8n4)
10
34 N10/1f34 87F 0.75 PKWH Fuel system control unit (N118) 7.5
    87F 0.75 VTBU Valid with engine 651.9 as of 01.06.2015 with CODE U77 (BLUETEC (SCR) diesel exhaust treatment): 
AdBlue® control unit (N118/5)
7.5
35 N10/1f35 87F 0.5 BK Electronic Stability Program control unit (N30/4) 5
36 N10/1f36 87F 0.75 BNRD Valid with code 233 (DISTRONIC PLUS) up to 31.05.2015 and with code 239 (DISTRONIC PLUS) as of 01.06.2015: 
DISTRONIC electric controller unit (A89)
7.5
    87F 0.75 BKRD Valid with code 233 (DISTRONIC PLUS): 
Left front bumper DISTRONIC (DTR) sensor (B29/2)
7.5
    87F 0.75 BKRD Valid with code 233 (DISTRONIC PLUS): 
Right front bumper DISTRONIC (DTR) sensor (B29/3)
7.5