Mercedes-Benz S-Class A217 / C217 / W222 (2014-2019…) – fuse box
Mercedes-Benz S-Class A217 / C217 / W222 (2014-2019) – fuse box diagram
Year of production: 2014, 2015, 2016, 2017, 2018, 2019
The cigarette lighter fuse (power socket) on the Mercedes S-Class C217 (2014-2018) is the 460 fuse in the (rear) fuse box.
Fuse and relay box in the engine compartment
| Number | Description | Amperes [A] |
| 100 | Hybrid:
vacuum pump |
40 |
| 101 | Connecting sleeve, circumference 87/2 | 15 |
| 102 | Connecting sleeve, circumference 87/2 | 20 |
| 103 | Coupling, circuit 87M4 | 15 |
| 104 | Coupling, circuit 87M3 | 15 |
| 105 | Valid for the gearbox 722.9:
Auxiliary gear oil pump control unit |
15 |
| 106 | Wiper parking heater | 25 |
| 107 | Valid for engines 277, 279:
Electric starter / air pump connection |
60 |
| 108 | Valid for SAE Dynamic LED headlight for right-hand traffic or Dynamic LED headlight:
left front lamp assembly; right front lamp assembly; valid without SAE dynamic LED headlamp for right-hand traffic or headlamp Dynamic LED: Right headlamp assembly. |
20 |
| 109 | Wiper motor | 30 |
| 110 | Valid for SAE code dynamic LED headlamp for right-hand traffic or dynamic LED headlamp:
Left front headlight; Right front headlight; Valid without SAE dynamic LED headlight for right-hand traffic or dynamic LED headlight: Left front headlight. |
20 |
| 111 | Starter | 30 |
| 112 | Engine fuse and relay module | 5 |
| 113 | Reserve | – |
| 114 | AIRmatic compressor | 40 |
| 115 | Left horn. Right horn | 15 |
| 116 | Hybrid:
Vacuum pump relay |
5 |
| 117 | Reserve | – |
| 118 | Hybrid:
Electronic stability program control unit |
5 |
| 119 | Sleeve for circuit 87 / C2 connector | 15 |
| 120 | Sleeve for circuit 87 / C1 connector | 7.5 |
| 121 | Electronic stability program control unit | 5 |
| 122 | Hybrid:
HYBRID relay. |
5 |
| 123 | Night vision assistant control unit | 5 |
| 124 | Hybrid:
Electrical connector for vehicle interior and engine compartment. |
5 |
| 125 | Front SAM control unit | 5 |
| 126 | Control of the drive system;
Valid for diesel engine: CDI control unit; Valid for gasoline engine: ME-SFI [ME] control unit. |
5 |
| 127 | Reserve | – |
| 128 | Exterior lights switch | 5 |
| 129A | Hybrid:
starter circuit 50 relay |
30 |
| 129B | Valid except hybrid:
start circuit relay 50 |
30 |
| Relay | ||
| G. | Relay 15 in the engine compartment | |
| H. | Starter relay 50 | |
| I | Brake vacuum pump relay | |
| J. | Hybrid:
HYBRID relay |
|
| K. | Transmission oil pump relay | |
| L | Horn relay | |
| M. | Wiper park position heater relay | |
| N | Relay circuit 87M. | |
| O | Valid except hybrid:
starter circuit relay 15 |
|
| P. | Secondary air injection relay | |
| Q | Hybrid:
vacuum pump relay |
|
| R | AIRmatic relay | |
Instrument panel fuse panel
| Number | Description | Amperes [A] |
| 200 | Front SAM control unit | 40 |
| 201 | Front SAM control unit | 40 |
| 202 | Alarm siren | 5 |
| 203 | W222:
Driver seat heating controller |
30 |
| 204 | Diagnostic connector | 5 |
| 205 | Electronic ignition lock control unit | 7.5 |
| 206 | Analog clock | 5 |
| 207 | Climate control unit | 20 |
| 208 | Instrument cluster | 7.5 |
| 209 | Air conditioning control panel on the front | 5 |
| 210 | Steering wheel lamp module control unit | 10 |
| 211 | Reserve | – |
| 212 | Reserve | – |
| 213 | Electronic stability program control unit | 25 |
| 214 | Reserve | – |
| 215 | Reserve | – |
| 216 | Reserve | – |
| 217 | Japanese version:
Dedicated control unit for short-range communications |
5 |
| 218 | Supplementary restraint system control unit | 5 |
| 219 | Weight detection system (WSS) control unit;
Front passenger seat and ACSR occupancy recognition. |
5 |
| 220 | MAGIC VISION CONTROL relay | 15 |
| Relay | ||
| D | MAGIC VISION CONTROL relay | |
| E. | Backup relay | |
| F. | Relay, circuit 15R | |
Fuse box in the passenger footwell
- Circuit 30 “E1” connection
- Circuit 30g Connection “E2”
| Number | Description | Amperes [A] |
| 301 | Mirror taximeter | 5 |
| 302 | Right front door control unit | 30 |
| 303 | W222:
Left rear door control unit; C217, A217: Rear driver. |
30 |
| 304 | W222:
Right rear door control unit; C217, A217: Rear driver. |
30 |
| 305 | Driver seat control unit | 30 |
| 306 | Front passenger seat control unit | 30 |
| 307 | W222:
Intelligent servo module for DIRECT SELECT |
30 |
| C217, A217:
Driver seat heating controller |
30 | |
| 308 | Front passenger seat heating control unit | 30 |
| 309 | Emergency call system control unit;
Telematics services communication module; HERMES control unit. |
5 |
| 310 | Stationary heater control unit | 25 |
| 311 | Rear blower motor | 10 |
| 312 | Overhead 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 engine 642, 651: CDI control unit. |
10 |
| 316 | Reserve | – |
| 317 | W222:
Panoramic sliding sunroof control module; C217, A217: MAGIC SKY CONTROL controller. |
30 |
| 318 | Audio / COMAND display | 15 |
| 319 | Panoramic sliding sunroof control module;
C217, A217: Panoramic roller blind control module. |
30 |
| 320 | Active Body Control control unit;
AIRmatic control unit (works except Active Body Control). |
15 |
| 321 | C217, A217:
Intelligent servo module for DIRECT SELECT |
20 |
| 322 | COMAND control unit | 15 |
| 323 | Supplemental restraint system control unit | 7.5 |
| MF1 / 1 | Japanese version:
Dedicated control unit for short-range communication |
7.5 |
| MF1 / 2 | Multifunctional monochrome camera;
Multifunctional stereo camera. |
7.5 |
| MF1 / 3 | Rain and light sensor with additional functions;
Driver on the control panel. |
7.5 |
| MF1 / 4 | Driver seat control unit | 7.5 |
| MF1 / 5 | Front passenger seat control unit | 7.5 |
| MF1 / 6 | Steering wheel lamp module control unit | 7.5 |
| MF2 / 1 | Perfume spray generator | 5 |
| MF2 / 2 | Audio / COMAND control panel;
Touchpad. |
5 |
| MF2 / 3 | Electronic stability program control unit | 5 |
| MF2 / 4 | Heads-up display | 5 |
| MF2 / 5 | Hybrid and Hybrid Plus:
Electric refrigerant compressor |
5 |
| MF2 / 6 | Reserve | – |
| MF3 / 1 | Front SAM control unit | 5 |
| MF3 / 2 | Radar sensors control unit | 5 |
| MF3 / 3 | COMAND fan motor | 5 |
| MF3 / 4 | Group of buttons on the driver’s side instrument panel;
Group of buttons on the center instrument panel. |
5 |
| MF3 / 5 | Rear air conditioning control unit | 5 |
| MF3 / 6 | from 01/06/2016:
Antenna switch for telephone and stationary heater. |
5 |
Rear fuse and relay box
- Circuit 30 “E1” connection
- Circuit 30g Connection “E2”
| Number | Description | Amperes [A] |
| 400 | Parking system control unit(active parking assist or 360-degree camera) | 10 |
| 401 | Trunk lid control unit | 5 |
| 402 | Rear entertainment controller | 7.5 |
| 403 | Reserve | – |
| 404 | Armrest heating controller | 7.5 |
| 405 | Sound Control System device;
Amplifier; Left front door tweeter control; Right front door tweeter control. |
7.5 |
| 406 | Reserve | – |
| 407 | Reserve | – |
| 408 | Tuner module | 5 |
| 409 | 360 ° camera control unit;
Reversing camera. |
5 |
| 410 | Camera cover control unit | 5 |
| 411 | Tire pressure monitor control unit | 5 |
| 412 | Rear seat heating control unit | 7.5 |
| 413 | Left rear display;
Right rear display. |
10 |
| 414 | Rear cell phone antenna system amplifier / compensator;
Telephone module with Bluetooth ® (SAP profile). |
7.5 |
| 415 | Reserve | – |
| 416 | Reserve | – |
| 417 | Trailer recognition control unit | 20 |
| 418 | Reserve | – |
| 419 | Reserve | – |
| 420 | DC / AC converter control unit | 30 |
| 421 | Multicontour seat pneumatic pump | 30 |
| 422 | W222:
Right rear door control unit |
30 |
| 423 | Reserve | – |
| 424 | Rear SAM control unit | 40 |
| 425 | Reserve | – |
| 426 | Woofer amplifier | 30 |
| 427 | Armrest heating controller | 20 |
| 428 | Trailer recognition control unit | 15 |
| 429 | Rear cup holder | 10 |
| 430 | Cigarette lighter with ashtray illumination, rear;
Cigarette lighter with rear center console illumination; 12v left center console socket (ashtray package / smoker’s package). |
15 |
| 431 | Rear seat refrigerator | 15 |
| 432 | Rear SAM control unit | 10 |
| 433 | The control unit AdBlue ® | 25 |
| 434 | The control unit AdBlue ® | 15 |
| 435 | The control unit AdBlue ® | 20 |
| 436 | Rear cup holder | 20 |
| 437 | Reserve | – |
| 438 | C217 with engine 157:
Right exhaust flap actuator motor |
7.5 |
| 439 | C217 with engine 157:
Left exhaust flap actuator motor |
7.5 |
| 440 | Reserve | – |
| 441 | Reserve | – |
| 442 | Reserve | – |
| 443 | Reserve | – |
| 444 | Reserve | – |
| 445 | Stationary radio receiver for remote control of the heater | 5 |
| 446 | FM 1, AM, CL [ZV] and KEYLESS-GO antenna amplifier | 5 |
| 447 | Hybrid:
Battery management system control unit. |
7.5 |
| 448 | Reserve | – |
| 449 | Reserve | – |
| 450 | Reserve | – |
| 451 | Trailer socket | 15 |
| 452 | Left rear bumper radar sensor;
Right rear bumper radar sensor; Center rear bumper radar sensor. |
5 |
| 453 | Left front bumper radar sensor;
Right front bumper radar sensor; COLLISION PREVENTION ASSIST driver. |
5 |
| 454 | AdBlue ® control unit;
Fuel system control unit. |
5 |
| 455 | Fully integrated gearbox control controller | 15 |
| 456 | Reserve | – |
| 457 | Applies to the lithium-ion battery:
Capacitor for the starting battery. |
7.5 |
| 458 | Reserve | – |
| 459 | Reserve | – |
| 460 | Front cigarette lighter with ashtray illumination | 15 |
| 461 | 12 V center console right rear console socket;
12 V DC / AC converter socket of the control unit. |
15 |
| 462 | Trunk socket | 15 |
| 463 | Reserve | – |
| 464 | Trailer recognition control unit | 20 |
| 465 | Electric parking brake control unit | 30 |
| 466 | Left front door control unit | 30 |
| 467 | KEYLESS-GO control unit | 10 |
| 468 | Electric parking brake control unit | 30 |
| 469 | Fuel system control unit | 25 |
| 470 | Left rear seat heating control unit;
Rear seat heating control unit. |
30 |
| 471 | Right rear seat heating control unit | 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 | Belt fastening active control unit;
C217, A217: Rear control unit. |
40 |
| 478 | Left rear seat control unit | 30 |
| 479 | Active belt buckle control unit | 40 |
| 480 | Right rear seat control unit | 30 |
| 481 | Front left reversible emergency tensioner | 5 |
| 482 | W222:
MAGIC SKY CONTROL control unit |
5 |
| C217, A217:
MAGIC SKY CONTROL control unit |
7.5 | |
| 483 | Right front reversible emergency tensioner | 5 |
| 484 | Right rear seat control unit;
Left rear seat control unit. |
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 control unit | 5 |
| 488 | Rear SAM control unit | 5 |
| 489 | Front long range radar sensor | 5 |
| 490 | Multicontour seat pneumatic pump | 5 |
| 491 | Trunk lid control unit | 40 |
| 492 | Right front reversible emergency tensioner | 40 |
| 493 | Reserve | – |
| 494 | Rear SAM control unit | 40 |
| 495 | Rear window heating | 40 |
| 496 | Front left reversible emergency tensioner | 40 |
| Relay | ||
| S | Vehicle interior relay 15 | |
| T. | Rear window heater relay | |
| U | Second row cupholder and socket relay | |
| V | AdBlue ® relay | |
| W | Circuit 15R relay | |
| X | 1st row of seats / trunk refrigerator box and sockets relay | |
| Y | Spare relay | |
Engine compartment pre-fuse box
Bottom view
View from above
1 – Connection, circuit 30 “B1”
2 – Connection, circuit 30 not latched “B2”
| Number | Description | Amperes [A] |
| M3 | Hybrid:
Electric engine. |
500 |
| Valid except hybrid:
Alternator. |
500 | |
| M1 | Hybrid:
Electric engine. |
– |
| Valid with the exception of Hybrid:
Starter |
– | |
| MR5 | Electric power steering control unit | 100 |
| MR2 | Fan motor | 100 |
| M4 | Hybrid:
Fully integrated gearbox control controller. |
100 |
| I1 | Reserve | – |
| M2 | Valid for diesel engine:
Glow power level |
150 |
| MR1 | Engine fuse and relay module | 60 |
| MR3 | Reserve | – |
| MR4 | Valid for engines 277, 279:
Fan motor |
150 |
| I2 | Reserve | – |
Pre-box inside the vehicle
F32 / 4k2 – Relay for shutting down the closed circuit
| Number | Description | Amperes [A] |
| I7 | Fuse box on the right A pillar. | 125 |
| I2 | Left fuse and relay module | 125 |
| C2 | Reserve | – |
| I8 | Reserve | – |
| I9 | Reserve | – |
| I3 | Connection of the relay for switching off the no-load current | – |
| C1 | Blower regulator | 40 |
| I1 | Electronic stability program control unit | 40 |
| I4 | Reserve | – |
| I6 | Rear fuse and relay module | 60 |
| I5 | Fuse box on the right A pillar. | 60 |
Rear pre-box
F33k1 – Decoupling relay
F33k2 – Additional battery relay with ECO start / stop function
| Number | Description | Amperes [A] |
| I3 | Reserve | – |
| 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 auxiliary battery;
Front SAM control unit; Electronic ignition lock control unit. |
10 |
| I1 | Reserve | – |
| I11 | Reserve | – |
| I7 | Front SAM control unit | 10 |
| I8 | ECO start / stop function – connection of an additional battery relay | – |
| I5 | Hybrid:
a pyrotechnic high voltage fuse tripped by the control unit of the supplemental restraint system |
– |
| I9 | Connection of the decoupling relay | – |