Mercedes-Benz S-Class (w222) (2014-2018) – fuse box diagram
The Mercedes-Benz S-Class w222 is a car in the luxury vehicle segment. The car debuted in 2013 and is already the 6th generation of the S-Class from the Stuttgart-based manufacturer. As a curiosity, it is the first car in the world where not a single light bulb can be found. They have been replaced by LEDs, of course.
Year of production: 2014, 2015, 2016, 2017, 2018.
Lighter fuse (electrical outlet) in Mercedes S-Class w222 (2014-2018). Is fuse 460 in the fuse box (rear).
Fuse and relay box in the engine compartment
| No. | Description | Amps [A] |
| 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 | Connection sleeve, circuit 87M3 | 15 |
| 105 | Applies to gear 722.9:
Auxiliary transmission oil pump control unit. |
15 |
| 106 | Windshield wiper parking heater | 25 |
| 107 | Applies to motors 277, 279:
Start motor/air pump electrical connection. |
60 |
| 108 | Valid for SAE LED dynamic headlights for right-hand traffic or LED dynamic headlights ::
Front left reflector; Front right reflector; Valid without SAE LED dynamic headlight for right side traffic or LED dynamic headlight :: Right front reflector. |
20 |
| 109 | Windshield wiper motor | 30 |
| 110 | Valid for SAE code LED dynamic headlights for right hand traffic or LED dynamic headlight ::
Front left reflector; Front right reflector; Valid without SAE LED dynamic headlight for right side traffic or LED dynamic headlight :: Front left reflector. |
20 |
| 111 | Starter | 30 |
| 112 | Motor fuse and relay module | 5 |
| 113 | Reservation | – |
| 114 | AIRmatic Compressor | 40 |
| 115 | Left horn;
Right horn. |
15 |
| 116 | Hybrid:
Vacuum Pump Relay |
5 |
| 117 | Reservation | – |
| 118 | Hybrid:
Electronic stability program control unit. |
5 |
| 119 | Bush for 87 / C2 circuit connector | 15 |
| 120 | Bush for 87 / C1 circuit connector | 7,5 |
| 121 | Electronic Stability Program Control Unit | 5 |
| 122 | Hybrid:
HYBRID Relay |
5 |
| 123 | Night View Assist control unit | 5 |
| 124 | Hybrid:
Electrical connector for vehicle interior and engine compartment |
5 |
| 125 | SAM front control unit | 5 |
| 126 | Powertrain control module;
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:
50 relay start circuit. |
30 |
| 129B | Valid except for hybrids:
Relay 50 start circuit. |
30 |
| Relay | ||
| G | Relay 15 in engine compartment | |
| H | Starter Relay 50 | |
| I | Brake vacuum pump relay | |
| J | Hybrid:
HYBRID Relay |
|
| K | Gearbox oil pump relay | |
| L | Horn relay | |
| M | Windshield Wiper Parking Position Heater Relay | |
| N | 87 M relay circuit. | |
| O | Valid except for hybrids:
Relay start circuit 15. |
|
| P. | Secondary air injection relay | |
| Q | Hybrid:
Vacuum pump relay. |
|
| R | AIRmatic Relay | |
Instrument panel fuse panel
| No. | Description | Amps [A] |
| 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 short range communications control unit. |
5 |
| 218 | Additional control unit for the restraint system | 5 |
| 219 | Weight detection system (WSS) control unit;
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 footwell
- Circuit 30 “E1” connection
- Circuit 30g “E2” connection
| No. | Description | Amps [A] |
| 301 | Mirrored Taximeter | 5 |
| 302 | Front right door control unit | 30 |
| 303 | W222:
Left rear door controller; C217, A217: Rear controller. |
30 |
| 304 | W222:
Right rear door controller; C217, A217: Rear driver. |
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 heater control unit | 30 |
| 309 | Control unit for the emergency call system;
Communication module for telematics services; HERMES control unit. |
5 |
| 310 | Stationary heater control unit | 25 |
| 311 | Rear fan 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 | Power unit 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 the retractable panoramic roof; C217, A217: MAGIC SKY CONTROL. |
30 |
| 318 | Audio Screen / COMAND | 15 |
| 319 | Control module for the sliding panoramic sunroof;
C217, A217: Control module for the panoramic blind. |
30 |
| 320 | Active body control unit
AIRmatic control unit (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 the additional restraint system | 7,5 |
| MF1 / 1 | Japanese version:
Dedicated short-range communications control unit. |
7,5 |
| MF1 / 2 | Monochrome multifunctional camera;
Multifunction stereo camera. |
7,5 |
| MF1 / 3 | Rain and light sensor with additional functions;
Control on 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/COMAND control panel;
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 | Group of buttons on the instrument panel on the driver’s side;
A group of buttons on the center dashboard. |
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 [A] |
| 400 | Parking system control unit
(active parking assistant or 360 degree camera) |
10 |
| 401 | Boot lid control | 5 |
| 402 | Rear entertainment controller | 7,5 |
| 403 | Reservation | – |
| 404 | Controller for armrest heating | 7,5 |
| 405 | Sound system amplifier control unit;
Left front door tweeter control unit; Right front door tweeter control unit. |
7,5 |
| 406 | Reservation | – |
| 407 | Reservation | – |
| 408 | Tuner Module | 5 |
| 409 | 360° Camera Control Unit
Reversing Camera |
5 |
| 410 | Camera lid control unit | 5 |
| 411 | Control unit of the tire pressure monitor | 5 |
| 412 | Rear seat heater control unit | 7,5 |
| 413 | Left rear display;
Right rear display. |
10 |
| 414 | Rear cell phone antenna system amplifier/compensator;
Bluetooth telephone 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 multicontour pump with seat | 30 |
| 422 | W222:
Right tailgate control unit |
30 |
| 423 | Reservation | – |
| 424 | Rear SAM control unit | 40 |
| 425 | Reservation | – |
| 426 | Bass Loudspeaker Amplifier | 30 |
| 427 | Controller for armrest heating | 20 |
| 428 | Trailer recognition control unit | 15 |
| 429 | Rear cup holder | 10 |
| 430 | Lighter with illuminated ashtray, rear;
Cigarette lighter with rear center console illumination; 12V socket of the left rear center console. |
15 |
| 431 | Rear seatback 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 | Left rear bumper radar sensor;
Right rear bumper radar sensor; Center rear bumper radar sensor. |
5 |
| 453 | Front left bumper radar sensor;
Right front bumper radar sensor; COLISION PREVENTION ASSISTANCE controller. |
5 |
| 454 | AdBlue control unit®;
Fuel system control unit. |
5 |
| 455 | Fully integrated gearbox control controller | 15 |
| 456 | Reservation | – |
| 457 | Applies to the lithium-ion battery:
Battery starter capacitor. |
7,5 |
| 458 | Reservation | – |
| 459 | Reservation | – |
| 460 | Front cigarette lighter with ashtray lighting | 15 |
| 461 | Right rear console center 12-volt socket; Socket for 12 V DC / AC converter of the control unit. |
15 |
| 462 | Plug socket | 15 |
| 463 | Reservation | – |
| 464 | Trailer recognition control unit | 20 |
| 465 | Electric Parking Brake Controller | 30 |
| 466 | Front left door control unit | 30 |
| 467 | KEYLESS-GO Control Unit | 10 |
| 468 | Electric Parking Brake Controller | 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 | Active belt buckle 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 | Left front reversible emergency voltage retractor | 5 |
| 482 | W222:
MAGIC SKY CONTROL Unit. |
5 |
| C217, A217:
MAGIC SKY CONTROL Unit. |
7,5 | |
| 483 | Right front reversible emergency voltage retractor | 5 |
| 484 | Controller for right rear seat and 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 | Boot lid control | 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 | Drink holder and socket relay for second row of seats | |
| V | AdBlue Relay ® | |
| W | Circuit 15R relay | |
| X | 1st row of seats/fridge box and socket relay | |
| Y | Reservation courier | |
Engine compartment pre-fuse box
Bottom view
Top view
1 – Connection, circuit 30 “B1
2 – Connection, circuit 30 not approved “B2
| No. | Description | Amps [A] |
| M3 | Hybrid:
Electric motor. |
500 |
| Valid except for hybrids:
Alternator. |
500 | |
| M1 | Hybrid:
Electric motor. |
– |
| Valid except for Hybrid:
Starter. |
– | |
| MR5 | Electric power steering control unit | 100 |
| MR2 | Fan Motor | 100 |
| M4 | Hybrid:
Fully integrated gearbox control controller. |
100 |
| I1 | Reservation | – |
| M2 | Applies to the diesel engine:
Luminous 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 – Static current cut-off relay
| No. | Description | Amps [A] |
| I7 | Fuse box on the correct 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 | Fuse box on the correct A-pillar. | 60 |
Rear inbox
F33k1 – Relay
Decoupling F33k2 – Additional battery relay with ECO start/stop function
| No. | Description | Amps [A] |
| 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 | Connecting ECO start/stop function of the additional battery relay | – |
| I5 | Hybrid:
Pyrotechnic high voltage fuse actuated by the control unit of the secondary containment system |
– |
| I9 | Decoupling relay connection | – |
