Mercedes GLC X253 GLC-class crossover, which was produced in 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 with various engine options (250 4MATIC, 220d 4MATIC, 250d 4MATIC, GLC 300, etc.). During this time, the model has been restyled. In this publication you will find a description of the fuses and relays Mercedes x253 with box diagrams, photo examples of performance and their locations. Select the cigarette lighter fuse.
The execution of the boxes and the purpose of the elements in them may differ from those presented and depend on the year of manufacture and the level of equipment of your car.
Contents
Passenger compartment
Box in panel
In the cabin, the fuse and relay box is located on the left side of the dashboard (on the parent side) behind a protective cover.
Diagram
Assignment
| 200 | 40A Front SAM control unit |
| 201 | 50A Front control unit SAM |
| 202 | 40A Alarm Siren |
| 203 | 20A Valid for vehicles with gearbox 716: Electric steering column lock control unit |
| 204 | 5A Diagnostic connector |
| 205 | 7.5A Electronic ignition lock control unit |
| 206 | 5A Analog clock |
| 207 | 15A Heating, ventilation and air conditioning control unit |
| 208 | 7.5A Instrument cluster |
| 209 | 5A Air conditioning control panel |
| Upper Control Panel Control Box | |
| 210 | 10A Signals from the steering column electronic module control unit |
| 211 | Reserve |
| 212 | Reserve |
| 213 | 5A Signals from the ESP control unit |
| 214 | Reserve |
| 215 | Reserve |
| 216 | 7.5A Glove box light |
| 217 | 5A Japan: DSRC toll data transmission control unit |
| 218 | 7.5A Supplemental Restraint System control unit |
| 219 | 5A Weight Sensing System control unit |
| 220 | Reserve |
| Relay | |
| F | Relay terminal 15R |
Power fuse box
A high power fuse box can be installed at the feet of the front passenger.
Diagram
Designation
- Engine compartment power fuse box
- 150A Hybrid: Additional battery relay for ECO Start-Stop function
- 40A Fan regulator
- Reserve
- 150A Vehicles with diesel engine: Electrical auxiliary heater
- 80A Right A-pillar fuse box
- 150A Rear fuse and relay module
- Reserve
- Reserve
- 60A Valid for vehicles with 725 gearbox: Fully integrated gearbox control unit 100A Hybrid with 724 gearbox: Fully integrated gearbox control unit
- Reserve
- 40A Rear fuse and relay module
- 50A Right A-pillar fuse box
- F32/4k2 – Closed current breaking relay
Location of additional elements
- F96 – Fuses terminal 30 additional battery
- F96 / 1 – Fuses terminal 87 damper in the exhaust tract
Box under the panel
Under the instrument panel, on the passenger side, on the rack behind the protective cover, there is another fuse box.
Photo – example
Diagram
Allocation
| 301 | 5A Hybrid: Ignition fuse (F63) via high voltage cut-off device |
| 302 | 30A Front right door control unit |
| 303 | 30A Rear left door control unit |
| 304 | 20A Valid for vehicles with gearbox 722: Servo drive module for automatic gearbox for DIRECT SELECT system |
| 305 | 30A Driver’s seat control unit |
| Driver’s seat heating control unit (up to 05/31/2015) | |
| Front seat heating control unit (from 06/01/2015) | |
| 306 | 30A Front passenger seat control unit |
| Front passenger seat heating control unit (until 05/31/2015) | |
| Front seat heating control unit (from 06/01/2015) | |
| 307 | Reserve |
| 308 | 30A USA: Electrical plug connection for the Elektric-Brake-Control function |
| 309 | 10A Emergency call system control unit |
| 5A HERMES control unit | |
| Telecom Services Communication Module | |
| 310 | Reserve |
| 311 | 10A Electronic controller for additional rear fan |
| 312 | 10A Ceiling Control Panel |
| 313 | 10A Hybrid: DC voltage converter control unit |
| 314 | Reserve |
| 315 | 5A Transmission control unit |
| On vehicles with diesel engine: CDI control unit | |
| On vehicles with petrol engine: ME control unit | |
| 316 | 7.5A Supplemental Restraint System control unit |
| 317 | 30A Panoramic sliding sunroof control module (panoramic sliding sunroof) |
| Sliding sunroof control module (sliding sunroof) | |
| 318 | 20A Auxiliary heater control unit |
| 319 | 5A Hybrid: High voltage electric heater system |
| 320 | 15A AIR BODY CONTROL |
| 321 | 5A Japan: DSRC Toll Communications Control Unit |
| 322 | 20A Head Unit |
| 323 | 5A Parking assistance control unit |
| MF1/1 | 7.5A Audio/COMAND Display |
| Audio fan motor (COMAND APS) | |
| MF1/2 | 7.5A Mono multifunction camera |
| Multifunctional stereo camera | |
| MF1/3 | 7.5A Rain and light sensor with additional functions |
| Ceiling Control Panel | |
| MF1/4 | 7.5A Driver’s seat control unit |
| Driver’s seat heating control unit (up to 05/31/2015) | |
| Front seat heating control unit (from 06/01/2015) | |
| MF1/5 | 7.5A Front passenger seat control unit |
| Front passenger seat heating control unit (until 05/31/2015) | |
| Front seat heating control unit (from 06/01/2015) | |
| MF1/6 | 7.5A Signals from the steering column electronic module control unit |
| MF2/1 | 5A Front left seat belt reversible pretensioner |
| MF2/2 | 5A Audio control panel/ COMAND |
| Touch panel (Audio 20 or COMAND APS radio) | |
| MF2/3 | 5A Front right seat belt reversible pretensioner |
| MF2/4 | 5A Head-up display |
| MF2/5 | 5A Media connection module |
| MF2/6 | 5A Hybrid: Electric air conditioner compressor |
| MF3/1 | 5A Front SAM terminal 30g readback wire |
| MF3/2 | 5A Radar control unit |
| MF3/3 | Reserve |
| MF3/4 | 5A Button block on the instrument panel on the driver’s side |
| MF3/5 | 5A Rear air conditioning control panel |
| MF3/6 | 5A Tire pressure monitoring control unit |
Engine compartment
Fuse and relay box
In the engine compartment, under the hood on the left side is the main fuse and relay box.
Diagram
Appointment
| 100 | 40A Hybrid: Vacuum pump |
| 101 | 15A Cable termination terminal 87/2 |
| 102 | 20A Cable termination terminal 87/1 |
| 103 | 15A Cable termination terminal 87/4 |
| 104 | 15A Cable termination terminal 87/3 |
| 105 | 15A Valid for vehicles with reduction gear 722.9 (except 722.930): Control unit for auxiliary transmission oil pump |
| 106 | Reserve |
| 107 | 60A Valid for engine 274.9: Electric coolant pump |
| 108 | 20A LED static headlights: |
| Front right headlight | |
| High Performance LED or dynamic LED headlights: | |
| Front left headlight | |
| Front right headlight | |
| 109 | 30A Wiper motor |
| 110 | 20A LED static headlights: |
| Front left headlight | |
| High Performance LED or dynamic LED headlights: | |
| Front left headlight | |
| Front right headlight | |
| 111 | 30A Starter |
| 112 | 15A Hybrid: Accelerator position sensor |
| 113 | Reserve |
| 114 | 40A AIR BODY CONTROL compressor |
| 115 | 15A Horn left and horn right |
| 116 | Reserve |
| 117 | Reserve |
| 118 | 5A Hybrid: Signals from the ESP control unit |
| 119 | 15A Cable termination terminal 87 C2 |
| 120 | 5A Cable termination terminal 87 C1 |
| 121 | 5A Signals from the ESP control unit |
| 122 | 5A CPC Relay |
| 123 | Reserve |
| 124 | Reserve |
| 125 | 5A Front SAM control unit |
| 126 | 5A Transmission control unit |
| On vehicles with diesel engine: CDI control unit | |
| On vehicles with petrol engine: ME control unit | |
| 127 | 5A Hybrid: Voltage drop limiter |
| 128 | 5A Front left headlight and outdoor light switch |
| 129 | 30A Starter terminal 50 relay |
| 129A | 30A Hybrid: Starter terminal 50 relay |
| Relay | |
| G | Terminal 15 relay, engine compartment |
| H | Starter terminal 50 relay |
| I | Hybrid: Vacuum pump relay (+) |
| J | CPC relay |
| K | Valid for vehicles with gearbox 722.9 (except 722.930): Oil pump relay |
| L | Horn relay |
| M | Wiper heater relay |
| N | Relay terminal 87M |
| O | Starter terminal 15 relay |
| P | Valid for engine 274.9: Coolant pump relay |
| Q | Hybrid: Vacuum pump relay (-) |
| R | AIR BODY CONTROL relay |
Power fuse box
Photo example
Type 1
Diagram
Type 2
Diagram
Decoding
| 1 | Reserve |
| 2 | 100A On vehicles with diesel engine: Glow plug output stage module |
| 3 | 60A Engine fuse and relay module |
| 4 | Vehicle battery connector |
| 5 | 150A Engine fuse and relay module |
| 6 | 125A Fuse and relay module, left |
| 7 | 80A Fan motor |
| 8 | 125A Electric power steering control unit |
| 9 | 150A Fan motor (1000W) |
| 10 | 200A Power fuse box in passenger compartment |
| 11 | Reserve |
| 12 | Hybrid: Power electronics control unit |
| USA: Catalyst heater control unit | |
| 13 | 400A Generator |
| C1 | Hybrid: Trip Relay |
| C2 | Hybrid: Terminal 31 |
| C3/1 | 40A Signals from the ESP control unit |
| C3/2 | 60A Signals from the ESP control unit |
| F32/3k1 | Isolating relay |
Luggage compartment
Another fuse and relay box is located in the trunk under a protective cover.
Type 1
Diagram
Type 2
Diagram
Assignment
| 400 | 25A AdBlue® control unit |
| 401 | 15A AdBlue® control unit |
| 402 | 20A AdBlue® control unit |
| 403 | 30A Before 11/30/2015: Switch for partially electric seat adjustment, front passenger seat |
| 25A From 12/01/2015: Switch for partially electric seat adjustment, front passenger seat | |
| 404 | 30A Before 11/30/2015: Driver’s seat partially electric adjustment switch |
| 25A From 12/01/2015: Driver’s seat partially electric adjustment switch | |
| 405 | Reserve |
| 406 | 30A Front left door control unit |
| 407 | Reserve |
| 408 | 30A Rear right door control unit |
| 409 | Reserve |
| 410 | 15A Remote heater radio remote control receiver |
| Antenna switch for telephone and auxiliary heater | |
| 411 | 30A Front left seat belt reversible pretensioner |
| 412 | 7.5A Hybrid: Battery management system control unit |
| 413 | 5A Trunk lid actuator control unit |
| 414 | 5A Tuner module (TV tuner, digital radio (DAB)) or SIRIUS satellite radio) |
| 415 | 5A Camera cover control unit |
| Air Aroma Generator | |
| 416 | 7.5A Antenna Amplifier / Mobile Phone Compensator |
| Mobile phone contact board | |
| 417 | 5A 360° Camera Control Unit |
| Rear View Camera | |
| 418 | 5A Seat heating control unit, rear |
| AIRSCARF system control unit | |
| 419 | 5A Lumbar support adjustment control unit for front passenger seat |
| 420 | 5A Lumbar adjustment control unit for driver’s seat |
| 421 | Reserve |
| 422 | Reserve |
| 423 | 5A Speaker amplifier control unit |
| 424 | 15A AIR BODY CONTROL Plus |
| Valid for vehicles with engine 276: Motorsound control unit | |
| 425 | Reserve |
| 426 | Reserve |
| 427 | Reserve |
| 428 | Reserve |
| 429 | Reserve |
| 430 | Reserve |
| 431 | 25A Multifunctional control unit for special vehicles |
| 432 | 25A Multifunctional control unit for special vehicles |
| 433 | 20A Trailer recognition control unit |
| 434 | 30A Trailer recognition control unit |
| 435 | 25A Trailer recognition control unit |
| 436 | 15A Trailer recognition control unit |
| 437 | 25A Trailer recognition control unit |
| 438 | 30A AC/DC converter control unit |
| 439 | Reserve |
| 440 | 30A Seat heating control unit, rear |
| AIRSCARF system control unit | |
| 441 | 30A AIRSCARF system control unit |
| 442 | 25A Fuel pump control unit |
| 443 | 30A Front right seat belt reversible pretensioner |
| 444 | 15A Electric plug connection tablet computer |
| 445 | 15A Socket in trunk |
| 446 | 15A Cigarette lighter with front ashtray illumination (socket in saloon) |
| 447 | 15A 12V socket in the center console, rear right |
| 448 | 10A Valid for vehicles with gearbox 722, 725: Park lock capacitor |
| 449 | Valid for vehicles with engine 626: Fuel filter element with integrated heating |
| Hybrid: Sound Generator | |
| 450 | 5A Rear control unit SAM |
| 451 | 5A Fuel pump control unit |
| AdBlue® control unit | |
| 452 | 5A Rear bumper integrated radar sensor outside right |
| Integrated radar sensor rear bumper outside left | |
| Radar sensor in the rear bumper in the center | |
| Radar sensor in the rear bumper on the right outside | |
| Radar sensor in the rear bumper on the left outside | |
| 453 | 5A Radar sensor in front bumper, left |
| Radar sensor in front bumper, right | |
| COLLISION PREVENTION ASSIST control module | |
| 454 | 7.5A Valid for vehicles with gearbox 722: Control unit for fully integrated automatic transmission control system |
| 5A AdBlue® control unit | |
| 455 | 5A AC/DC converter control unit |
| 456 | 5A Far field radar sensor front |
| Electrical control module DISTRONIC | |
| 457 | 5A Hybrid: |
| DC voltage converter control unit | |
| Power electronic equipment control unit | |
| 458 | 5A Module for keyless opening of the trunk lid under the rear bumper |
| 459 | 5A Hybrid: Charger |
| 460 | 10A Control unit kEyLESS-GO |
| 461 | 5A Antenna amplifier FM 1, AM, CL and KEYLESS-GO |
| 462 | 40A Speaker amplifier control unit |
| 463 | 30A Heated rear window (R1) via rear window interference suppression capacitor |
| 464 | 40A Trunk lid actuator control unit |
| Tailgate Actuator Control Module | |
| 465 | 40A Rear control unit SAM |
| 466 | 40A Rear control unit SAM |
| 467 | 40A Valid for vehicles with 626 engine: Fuel filter element with integrated heating |
| Relay | |
| S | Salon terminal 15 relay |
| T | Heated rear window relay |
| U | 2nd row cup holder and socket relay |
| В | AdBlue® relay |
| X | Relay for refrigerator box and sockets of the 1st row of seats / trunk |
| Y | Backup relay |
| ZR1 | Valid for vehicles with engine 626: Fuel filter heating relay |
| ZR2 | Backup relay |
| ZR3 | Backup relay |
Fuses 445, 446 and 447 are responsible for the cigarette lighters.
That’s all. If you have to add material, then write in the comments.
GRATE INFORMATION