Mercedes-Benz S-Class A217 (2014-2018) – fuse box diagram
Year of production: 2014, 2015, 2016, 2017, 2018.
Lighter fuse (electrical outlet) on Mercedes S-Class A217 (2014-2018). Is a 430 and 460 fuse in the fuse box at the rear.
Fuse and relay box in the engine compartment
No. | Description | Amps |
100 | Hybrid: vacuum pump | 40 |
101 | Connection sleeve, circuit 87/2 | 15 |
102 | Connection sleeve, circuit 87/2 | 20 |
103 | Connector, circuit 87M4 | 15 |
104 | Connector, circuit 87M3 | 15 |
105 | Valid for transmission 722.9: Control unit for auxiliary transmission oil pump | 15 |
106 | Windshield wiper parking heater | 25 |
107 | Applies to motors 277, 279: Electrical connection of starter motor / air pump | 60 |
108 | Valid for SAE LED dynamic headlights for right hand traffic or LED dynamic headlights :: front left lamp assembly right front lamp assembly valid without SAE Dynamic LED headlight for right side traffic or Dynamic LED headlight :: Right Front Lamp Assembly |
20 |
109 | Windshield wiper motor | 30 |
110 | Valid for SAE code LED dynamic headlights for right hand traffic or LED dynamic headlight :: Front left headlight Headlight Right Valid without SAE LED dynamic headlights for right-hand traffic or LED dynamic headlights :: Front left headlight |
20 |
111 | Starter | 30 |
112 | Motor fuse and relay module | 5 |
113 | Reservation | – |
114 | AIRmatic Compressor | 40 |
115 | Left-hand horn Right horn | 15 |
116 | Hybrid: vacuum pump relay | 5 |
117 | Reservation | – |
118 | Hybrid: electronic stability program control unit | 5 |
119 | 87 / C2 circuit connector bushing | 15 |
120 | 87 / C1 circuit connector bushing | 7,5 |
121 | Electronic Stability Program Control Unit | 5 |
122 | Hybrid: HYBRID Relay | 5 |
123 | Control unit Night Vision Assistant | 5 |
124 | Hybrid: Electrical connector for vehicle interior and engine compartment | 5 |
125 | SAM front control unit | 5 |
126 | Powertrain Control Unit Valid for diesel engine: CDI control unit Applies to gasoline engine: ME-SFI control unit [ME] |
5 |
127 | Reservation | – |
128 | External light switch | 5 |
129A | Hybrid: starter circuit 50 relay | 30 |
129B | Valid except for hybrids: 50 starter circuit relay | 30 |
Relay | ||
E | Relay 15 in engine compartment | |
H | 50 start relay | |
I | Brake vacuum pump relay | |
J | Hybrid: HYBRID Relay | |
K | Transmission oil pump relay | |
L | Horn relay | |
M | Windshield Wiper Parking Position Heater Relay | |
N | 87 M relay circuit. | |
O | Valid except for hybrids: Relay 15 of the starter circuit | |
P | Secondary air injection relay | |
Q | Hybrid: vacuum pump relay | |
R | AIRmatic Relay |
Instrument panel fuse panel
No. | Description | Amps |
200 | SAM front control unit | 40 |
201 | SAM front control unit | 40 |
202 | Alarm siren | 5 |
203 | W222: Driver’s seat heating controller | 30 |
204 | Diagnostic connector | 5 |
205 | Electronic ignition interlock control unit | 7,5 |
206 | Analog clock | 5 |
207 | Climate control unit | 20 |
208 | Instrument cluster | 7,5 |
209 | Front air conditioning control panel | 5 |
210 | Control unit of the direction light module | 10 |
211 | Reservation | – |
212 | Reservation | – |
213 | Electronic stability program control unit | 25 |
214 | Reservation | – |
215 | Reservation | – |
216 | Reservation | – |
217 | Japanese version: Dedicated control unit for short range communications | 5 |
218 | Additional control unit for the restraint system | 5 |
219 | Control unit of the weight detection system (WSS) Front passenger seat occupancy recognition and ACSR |
5 |
220 | MAGIC VISION CONTROL | 15 |
Relay | ||
D | MAGIC VISION CONTROL | |
E | Reserve courier | |
F | Relay, circuit 15R |
Fuse box in passenger leg room
- Circuit 30 “E1” connection
- Circuit 30g “E2” connection
No. | Description | Amps |
301 | Mirror Taximeter | 5 |
302 | Right Front Door Controller | 30 |
303 | W222: Controller left rear door C217, A217: Controller rear |
30 |
304 | W222: Controller right rear door C217, A217: Rear controller |
30 |
305 | Driver’s seat control unit | 30 |
306 | Front passenger seat control unit | 30 |
307 | W222: Intelligent servo module for DIRECT SELECT | 30 |
C217, A217: Driver’s seat heating controller | 30 | |
308 | Front passenger seat heating controller | 30 |
309 | Alarm call system control unit Telematic services communication module Control unit HERMES |
5 |
310 | Stationary heater control unit | 25 |
311 | Rear fan motor | 10 |
312 | Hanging control panel control unit | 10 |
313 | Hybrid and Hybrid Plus: power electronics control unit | 10 |
314 | A217: Anti-theft alarm system (designation in coordination) | 7,5 |
315 | Powertrain Control Unit Valid for gasoline engine: ME-SFI control unit Valid for motor 642, 651: CDI control unit |
10 |
316 | Reservation | – |
317 | W222: Control module for sliding panorama roof C217, A217: Controller MAGIC SKY CONTROL |
30 |
318 | Audio Screen / COMAND | 15 |
319 | Panoramic sliding roof control module C217, A217: Control module for the panoramic blind. |
30 |
320 | Active Body Control Unit AIRmatic (works except for Active Body Control) |
15 |
321 | C217, A217: Intelligent servo module for DIRECT SELECT | 20 |
322 | COMAND control unit | 15 |
323 | Control unit for additional restraint system | 7,5 |
MF1 / 1 | Japanese version: Dedicated short range communications control unit | 7,5 |
MF1 / 2 | Monochrome multifunction camera Multifunction camera stereo |
7,5 |
MF1 / 3 | Rain/light sensor with additional functions Controller in the control panel |
7,5 |
MF1 / 4 | Driver’s seat control unit | 7,5 |
MF1 / 5 | Front passenger seat control unit | 7,5 |
MF1 / 6 | Control unit of the direction light module | 7,5 |
MF2 / 1 | Perfume atomizer generator | 5 |
MF2 / 2 | Audio Control Panel / COMAND Touchpad |
5 |
MF2 / 3 | Electronic stability program control unit | 5 |
MF2 / 4 | Main Screen | 5 |
MF2 / 5 | Hybrid and Hybrid Plus: Electric refrigerant compressor | 5 |
MF2 / 6 | Reservation | – |
MF3 / 1 | SAM front control unit | 5 |
MF3 / 2 | Radar sensor control unit | 5 |
MF3 / 3 | COMMAND the fan motor | 5 |
MF3 / 4 | Button group on the driver’s side instrument panel Button group on the center instrument panel |
5 |
MF3 / 5 | Rear air conditioning control unit | 5 |
MF3 / 6 | as of 01.06.2016: Antenna switch for telephone and stationary heater | 5 |
Rear fuse and relay box
- Circuit 30 “E1” connection
- Circuit 30g “E2” connection
No. | Description | Amps |
400 | Parking system control unit (active parking assistant or 360 degree camera) | 10 |
401 | Trunk lid controller | 5 |
402 | Rear entertainment controller | 7,5 |
403 | Reservation | – |
404 | Arm Heater Controller | 7,5 |
405 | Sound Control System Amplifier Device. Left front door control system tweeter Tweeter of the right front door control unit |
7,5 |
406 | Reservation | – |
407 | Reservation | – |
408 | Tuner Module | 5 |
409 | Camera control unit 360 inverting |
5 |
410 | Camera lid control unit | 5 |
411 | Control unit of the tire pressure monitor | 5 |
412 | Rear seat heating controller | 7,5 |
413 | Rear left display Right Rear Display |
10 |
414 | Rear cell phone antenna system amplifier/compensator Rear cell phone cradle back of cell phone contact plate Bluetooth Phone Module ® (SAP Profile) |
7,5 |
415 | Reservation | – |
416 | Reservation | – |
417 | Trailer recognition control unit | 20 |
418 | Reservation | – |
419 | Reservation | – |
420 | DC / AC converter control unit | 30 |
421 | Pneumatic multi-contour pump with seat | 30 |
422 | W222: Controller right rear door | 30 |
423 | Reservation | – |
424 | Rear SAM control unit | 40 |
425 | Reservation | – |
426 | Bass speaker amplifier | 30 |
427 | Arm Heater Controller | 20 |
428 | Trailer recognition control unit | 15 |
429 | Rear cup holder | 10 |
430 | Cigarette lighter with ashtray, rear Cigarette lighter with illumination 12V rear center console socket (ashtray pack / smoker’s pack) |
15 |
431 | Rear seat back cooler | 15 |
432 | Rear SAM control unit | 10 |
433 | AdBlue control unit ® | 25 |
434 | AdBlue control unit ® | 15 |
435 | AdBlue control unit ® | 20 |
436 | Rear cup holder | 20 |
437 | Reservation | – |
438 | C217 with 157 engine: Right exhaust flap drive motor | 7,5 |
439 | C217 with 157 engine: Left exhaust flap drive motor | 7,5 |
440 | Reservation | – |
441 | Reservation | – |
442 | Reservation | – |
443 | Reservation | – |
444 | Reservation | – |
445 | Stationary Radio Heater Remote Control Receiver | 5 |
446 | FM 1, AM, CL antenna amplifier [ZV] and KEYLESS-GO | 5 |
447 | Hybrid: battery management system control unit | 7,5 |
448 | Reservation | – |
449 | Reservation | – |
450 | Reservation | – |
451 | Trailer Socket | 15 |
452 | Rear left bumper radar sensor Right rear bumper center radar sensor rear bumper |
5 |
453 | Radar sensor front left bumper Radar sensor Front right bumper COLISION PREVENTION ASSISTANCE controller. |
5 |
454 | AdBlue control unit ® Unit fuel system control unit |
5 |
455 | Fully Integrated Transmission Control Controller | 15 |
456 | Reservation | – |
457 | Applies to the lithium-ion battery: Starting battery capacitor | 7,5 |
458 | Reservation | – |
459 | Reservation | – |
460 | Front cigarette lighter with ashtray lighting | 15 |
461 | 12 volt socket on the right rear center console 12-volt socket V of DC / AC converter of control unit |
15 |
462 | Trunk socket | 15 |
463 | Reservation | – |
464 | Trailer recognition control unit | 20 |
465 | Electric Parking Brake Controller | 30 |
466 | Front left door controller | 30 |
467 | KEYLESS-GO Control Unit | 10 |
468 | Electric Parking Brake Controller | 30 |
469 | Fuel system control unit | 25 |
470 | Left rear seat heating controller Heating controller Rear seat |
30 |
471 | Right Rear Seat Heating Controller | 30 |
472 | C217, A217: Rear control unit | 30 |
473 | Trailer recognition control unit | 20 |
475 | Sound system amplifier control unit | 40 |
476 | Sound system amplifier control unit | 40 |
477 | Active belt buckle control unit C217, A217: Rear control unit |
40 |
478 | Left rear seat controller | 30 |
479 | Active belt buckle control unit | 40 |
480 | Right Rear Seat Controller | 30 |
481 | Left front reversible emergency voltage retractor | 5 |
482 | W222: MAGIC SKY CONTROL Unit. | 5 |
C217, A217: MAGIC SKY CONTROL Unit. | 7,5 | |
483 | Emergency voltage reversible right front retractor | 5 |
484 | Right Rear Seat Controller Left Rear Seat |
7,5 |
485 | Active belt buckle control unit | 5 |
486 | Hybrid: Battery management system control unit. power electronics control unit |
10 |
487 | Electric Parking Brake Controller | 5 |
488 | Rear SAM control unit | 5 |
489 | Front long range radar sensor | 5 |
490 | Pneumatic multicontour pump with seat | 5 |
491 | Trunk lid controller | 40 |
492 | Emergency voltage reversible right front retractor | 40 |
493 | Reservation | – |
494 | Rear SAM control unit | 40 |
495 | Rear Window Heater | 40 |
496 | Left front reversible emergency voltage retractor | 40 |
Relay | ||
S | Vehicle interior relay 15 | |
T | Rear Window Heating Relay | |
U | Second row beverage door and seat relay | |
V | AdBlue courier ® | |
W | Circuit 15R relay | |
X | 1st row of seats / trunk cooler and plug relay | |
Y | Reserve courier |
Engine compartment pre-fuse box
Bottom view
Top view
1 – Connection, circuit 30 “B1
2 – Connection, circuit 30 not latched “B2”.
No. | Description | Amps |
M3 | Hybrid: electric machine | 500 |
Valid except for hybrids: alternator | 500 | |
M1 | Hybrid: electric machine | – |
Valid except for Hybrid: Starter | – | |
MR5 | Electric power steering control unit | 100 |
MR2 | Fan Motor | 100 |
M4 | Hybrid: w Fully integrated transmission control controller | 100 |
I1 | Reservation | – |
M2 | Applies to the diesel engine: brightness power stage | 150 |
MR1 | Motor fuse and relay module | 60 |
MR3 | Reservation | – |
MR4 | Valid for 277, 279 engines: Fan motor | 150 |
I2 | Reservation | – |
Starter box inside the vehicle
F32 / 4k2 – Standby current cut-off relay
No. | Description | Amps |
I7 | Fuse box on the right on the A-pillar. | 125 |
I2 | Left fuse and relay module | 125 |
C2 | Reservation | – |
I8 | Reservation | – |
I9 | Reservation | – |
I3 | No-load cut-off relay connection | – |
C1 | Fan controller | 40 |
I1 | Electronic stability program control unit | 40 |
I4 | Reservation | – |
I6 | Rear fuse and relay module | 60 |
I5 | The fuse box on the A-pillar on the right. | 60 |
Rear Prebox
F33k1 – Relay
Decoupling F33k2 – Additional battery relay with ECO start/stop function
No. | Description | Amps |
I3 | Reservation | – |
I2 | Windshield heating control unit | 125 |
I7 | Hybrid: high voltage disconnect device | 7,5 |
I4 | Rear fuse and relay module | 150 |
I6 | Additional battery with ECO start / stop function | 200 |
I7 | ECO start/stop function secondary battery SAM front control unit Electronic ignition interlock control unit |
10 |
I1 | Reservation | – |
I11 | Reservation | – |
I7 | SAM front control unit | 10 |
I8 | ECO start / stop function additional battery relay connection | – |
I5 | Hybrid: Pyrotechnic high voltage fuse driven by the control unit of the secondary containment system | – |
I9 | Decoupling relay connection | – |