2015-2018 Mercedes-Benz GLC (X253)
Fuse Box in the Trunk
- Open the tailgate.
- Lift the cargo compartment floor upwards.
- To open: release cover at the top and open it (1) downwards in the direction of the arrow.
- To close: fold down cover (1) in the opposite direction to the arrow and close the Velcro fastener.
- Make sure that the cover is in the recess provided for it.
Variant 1
Variant 2
1 - Terminal 30 "E1" feed
2 - Terminal 30g "E2" feed
| No. | A | Description |
|---|---|---|
| 400 | 25 | BlueTEC: AdBlue® control unit |
| 401 | 15 | BlueTEC: AdBlue® control unit |
| 402 | 20 | BlueTEC: AdBlue® control unit |
| 403 | 30 | →30.11.2015: Front passenger seat partially electric seat adjustment switch |
| 25 | 01.12.2015→: Front passenger seat partially electric seat adjustment switch | |
| 404 | 30 | →30.11.2015: Driver seat partially electric seat adjustment switch |
| 25 | 01.12.2015→: Driver seat partially electric seat adjustment switch | |
| 405 | - | - |
| 406 | 30 | Left front door control unit |
| 407 | - | - |
| 408 | 30 | Right rear door control unit |
| 409 | - | - |
| 410 | 5 | Stationary heater radio remote control receiver Antenna changeover switch for telephone and stationary heater |
| 411 | 30 | Left front reversible emergency tensioning retractor |
| 412 | 7.5 | Hybrid: Battery management system control unit |
| 413 | 5 | Trunk lid control control unit |
| 414 | 5 | Tuner unit |
| 415 | 5 | Camera cover control unit Perfume atomizer generator |
| 416 | 7.5 | Cellular telephone system antenna amplifier/compensator Mobile phone contact plate |
| 417 | 5 | 360° camera control unit Reversing camera |
| 418 | 5 | Rear seat heater control unit AIRSCARF control unit |
| 419 | 5 | Front passenger seat lumbar support adjustment control unit |
| 420 | 5 | Driver seat lumbar support adjustment control unit |
| 421 | - | - |
| 422 | - | - |
| 423 | 5 | Sound system amplifier control unit |
| 424 | 15 | AIR BODY CONTROL Plus control unit M276: Engine sound control unit |
| 425 | - | - |
| 426 | - | - |
| 427 | - | - |
| 428 | - | - |
| 429 | - | - |
| 430 | - | - |
| 431 | 25 | Special-purpose vehicle multifunction control unit |
| 432 | 25 | Special-purpose vehicle multifunction control unit |
| 433 | 20 | Trailer recognition control unit |
| 434 | 30 | Trailer recognition control unit |
| 435 | 25 | Trailer recognition control unit |
| 436 | 15 | Trailer recognition control unit |
| 437 | 25 | Trailer recognition control unit |
| 438 | 30 | DC/AC converter control unit |
| 439 | - | - |
| 440 | 30 | Rear seat heater control unit AIRSCARF control unit |
| 441 | 30 | AIRSCARF control unit |
| 442 | 25 | Fuel system control unit |
| 443 | 30 | Right front reversible emergency tensioning retractor |
| 444 | 15 | Tablet PC electrical connector |
| 445 | 15 | Luggage compartment socket |
| 446 | 15 | Front cigarette lighter with ashtray illumination Vehicle interior power outlet |
| 447 | 15 | Right rear center console socket 12V |
| 448 | 10 | Valid for transmission 722, 725: Park pawl capacitor |
| 449 | 5 | OM626: Fuel filter element with integrated heater Hybrid: Sound generator |
| 450 | 5 | Rear SAM control unit |
| 451 | 5 | Fuel system control unit BlueTEC: AdBlue® control unit |
| 452 | 5 | Integrated outer right rear bumper radar sensor Integrated outer left rear bumper radar sensor Center rear bumper radar sensor Outer right rear bumper radar sensor Outer left rear bumper radar sensor |
| 453 | 5 | Left front bumper radar sensor Right front bumper radar sensor COLLISION PREVENTION ASSIST controller unit |
| 454 | 7.5 | Valid for transmission 722: Fully integrated transmission control unit |
| 5 | BlueTEC: AdBlue® control unit | |
| 455 | 5 | DC/AC converter control unit |
| 456 | 5 | Front long-range radar sensor DISTRONIC electric controller unit |
| 457 | 5 | Hybrid: Power electronics control unit DC/DC converter control unit Power electronics control unit |
| 458 | 5 | Rear switching module |
| 459 | 5 | Hybrid: Charger |
| 460 | 10 | KEYLESS-GO control unit |
| 461 | 5 | FM 1, AM, CL [ZV] and KEYLESS-GO antenna amplifier |
| 462 | 40 | Sound system amplifier control unit |
| 463 | 30 | Rear window heater via rear window interference suppression capacitor |
| 464 | 40 | Trunk lid control control unit Liftgate control control unit |
| 465 | 40 | Rear SAM control unit |
| 466 | 40 | Rear SAM control unit |
| 467 | 40 | OM626: Fuel filter element with integrated heater |
| Relay | ||
| S | Vehicle interior circuit 15 | |
| T | Rear window heater | |
| U | 2nd seat row cup holder and sockets | |
| V | BlueTEC: AdBlue® | |
| X | 1 st seat row/trunk refrigerator box and sockets relay | |
| Y | - | |
| ZR1 | OM626: Fuel filter heater | |
| ZR2 | Reserve | |
| ZR3 | Reserve | |
Gasoline:
- 2.0L - M274 (GLC 250 4MATIC, GLC 300 4MATIC)
- 3.0L - M276 (GLC 43 AMG)
- 4.0L - M177 (GLC 63 AMG)
- 2.0L Hybrid - M274 (GLC 350e 4MATIC)
Diesel:
- 2.2L - OM651 (GLC 220d 4MATIC, GLC 250d 4MATIC)
- 3.0L - OM642 (GLC 350d 4MATIC)
Fuse Box in the Front-Passenger Footwell
- Open the front-passenger door.
- To open: fold cover (1) out towards the rear and remove it.
- To close: clip in cover (1) at the rear.
- Fold cover (1) forwards until it engages.
| No. | A | Description |
|---|---|---|
| 301 | 5 | Hybrid: Pyrofuse via high-voltage disconnect device |
| 302 | 30 | Right front door control unit |
| 303 | 30 | Left rear door control unit |
| 304 | 20 | Valid for transmission 722: Intelligent servo module for DIRECT SELECT (A80) |
| 305 | 30 | Driver seat control unit Driver seat heater control unit Front seat heater control unit |
| 306 | 30 | Front passenger seat control unit Front passenger seat heater control unit Front seat heater control unit |
| 307 | - | - |
| 308 | 30 | USA: Electric Brake Control electrical connector |
| 309 | 10 | Emergency call system control unit |
| 5 | HERMES control unit Telematics services communications module |
|
| 310 | - | - |
| 311 | 10 | Booster blower electronic blower regulator |
| 312 | 10 | Overhead control panel control unit |
| 313 | 10 | Hybrid: DC/DC converter control unit |
| 314 | - | - |
| 315 | 5 | Powertrain control unit Diesel: CDI control unit Gasoline: ME-SFI control unit |
| 316 | 7.5 | Supplemental Restraint System control unit |
| 317 | 30 | Panoramic sliding sunroof control module Sliding roof control module |
| 318 | 20 | Stationary heater control unit |
| 319 | 5 | Hybrid: High-voltage PTC heater |
| 320 | 15 | AIR BODY CONTROL control unit |
| 321 | 5 | Japan: Dedicated Short-Range Communications control unit |
| 322 | 20 | Head unit |
| 323 | 5 | Parking system control unit |
| MF1/1 | 7.5 | Audio/COMAND display Audio equipment fan motor |
| MF1/2 | 7.5 | Stereo multifunction camera Mono multifunction camera |
| MF1/3 | 7.5 | Rain/light sensor with additional functions Overhead control panel control unit |
| MF1/4 | 7.5 | Driver seat control unit Driver seat heater control unit Front seat heater control unit |
| MF1/5 | 7.5 | Front passenger seat control unit Front passenger seat heater control unit Front seat heater control unit |
| MF1/6 | 7.5 | Steering column tube module control unit |
| MF2/1 | 5 | Left front reversible emergency tensioning retractor |
| MF2/2 | 5 | Audio/COMAND control panel Touchpad |
| MF2/3 | 5 | Right front reversible emergency tensioning retractor |
| MF2/4 | 5 | Heads-up display |
| MF2/5 | 5 | Multimedia connection unit |
| MF2/6 | 5 | Hybrid: Electrical refrigerant compressor |
| MF3/1 | 5 | Feedback line, terminal 30g, front SAM control unit |
| MF3/2 | 5 | Radar sensors control unit |
| MF3/3 | - | - |
| MF3/4 | 5 | Driver side instrument panel button group |
| MF3/5 | 5 | Rear air conditioning operating unit |
| MF3/6 | 5 | Tire pressure monitor control unit |
Dashboard Fuse Box
- Open the driver's door.
- To open: pull out cover (1) slightly at the bottom in the direction of arrow (3).
- Fold cover (1) outwards in the direction of arrow (2).
- To close: fold in cover (1) until it engages.
| No. | A | Description |
|---|---|---|
| 200 | 50 | Front SAM control unit |
| 201 | 40 | Front SAM control unit |
| 202 | 5 | Alarm siren |
| 203 | 20 | Valid with transmission 716: Electric steering lock control unit |
| 204 | 5 | Diagnostic connector |
| 205 | 7.5 | Electronic ignition lock control unit |
| 206 | 5 | Analog clock |
| 207 | 15 | Climate control control unit |
| 208 | 7.5 | Instrument cluster |
| 209 | 5 | Climate control operating unit Upper control panel control unit |
| 210 | 10 | Steering column tube module control unit |
| 211 | 25 | - |
| 212 | 5 | - |
| 213 | 5 | Electronic Stability Program control unit |
| 214 | 30 | - |
| 215 | - | - |
| 216 | 7.5 | Glove compartment lamp |
| 217 | 5 | Japan: Dedicated Short-Range Communications control unit |
| 218 | 7.5 | Supplemental Restraint System control unit |
| 219 | 5 | Weight sensing system (WSS) control unit |
| 220 | - | - |
| Relay | ||
| F | Relay, circuit 15R | |
Fuse Box in the Engine Compartment
- Open the hood.
- To open: press safety clips (1) on the cover together.
- Remove fuse box cover (2) upwards.
- Use a dry cloth to remove any moisture from the fuse box.
- Loosen screws (3), fold up fuse box lid (4) and remove it.
- To close: check whether the seal is positioned correctly in the lid (4).
- Insert lid (4) into the bracket at the rear of the fuse box.
- Fold down lid (4) of the fuse box and tighten screws (3).
| No. | A | Description |
|---|---|---|
| 100 | 40 | Hybrid: Vacuum pump |
| 101 | 15 | Connector sleeve, circuit 87/2 |
| 102 | 20 | Connector sleeve, circuit 87/1 |
| 103 | 15 | Connector sleeve, circuit 87/4 |
| 104 | 15 | Connector sleeve, circuit 87/3 |
| 105 | 15 | Valid for transmission 722.9 (except 722.930): Automatic transmission fluid auxiliary oil pump control unit |
| 106 | - | - |
| 107 | 60 | M274.9: Electric coolant pump |
| 108 | 20 | Static LED headlamp: Right front lamp unit High performance LED, Dynamic LED headlamp: Left front lamp unit Right front lamp unit |
| 109 | 30 | Wiper motor |
| 110 | 20 | Static LED headlamp: Left front lamp unit High performance LED, Dynamic LED headlamp: Left front lamp unit Right front lamp unit |
| 111 | 30 | Starter |
| 112 | 15 | Hybrid: Accelerator pedal sensor |
| 113 | - | - |
| 114 | 40 | AIR BODY CONTROL compressor |
| 115 | 15 | Left horn and right horn |
| 116 | - | - |
| 117 | - | - |
| 118 | 5 | Hybrid: Electronic Stability Program control unit |
| 119 | 15 | Circuit 87 C2 connector sleeve |
| 120 | 5 | Circuit 87 C1 connector sleeve |
| 121 | 5 | Electronic Stability Program control unit |
| 122 | 5 | CPC relay |
| 123 | - | - |
| 124 | - | - |
| 125 | 5 | Front SAM control unit |
| 126 | 5 | Powertrain control unit Diesel: CDI control unit Gasoline: ME-SFI control unit |
| 127 | 5 | Hybrid: Voltage dip limiter |
| 128 | 5 | Left front lamp unit and exterior lights switch |
| 129 | 30 | Hybrid: Starter circuit 50 relay |
| 129A | 30 | Hybrid: Starter circuit 50 relay |
| Relay | ||
| G | Engine compartment circuit 15 | |
| H | Starter circuit 50 | |
| I | Hybrid: Vacuum pump (+) | |
| J | CPC | |
| K | Valid for transmission 722.9 (except 722.930): Oil pump | |
| L | Horn | |
| M | Wiper park position heater | |
| N | Circuit 87M | |
| O | Hybrid: Starter circuit 15 | |
| P | M274.9: Coolant pump | |
| Q | Hybrid: Vacuum pump (-) | |
| R | AIR BODY CONTROL | |
Prefuse Box in Engine Compartment
Variant 1
Variant 2
F32/3k1 - Decoupling relay
| No. | A | Description |
|---|---|---|
| 1 | - | - |
| 2 | 100 | Diesel: Glow output stage |
| 3 | 60 | Engine fuse and relay module |
| 4 | - | On-board electrical system battery connection |
| 5 | 150 | Engine fuse and relay module |
| 6 | 125 | Left fuse and relay module |
| 7 | 80 | Fan motor (600 W / 850 W) |
| 8 | 125 | Electrical power steering control unit |
| 9 | 150 | Fan motor (1000 W) |
| 10 | 200 | Vehicle interior prefuse box |
| 11 | - | - |
| 12 | - | Hybrid: Power electronics control unit OM651.9 and USA: Catalytic converter heater control unit |
| 13 | 400 | Alternator |
| C1 | - | Hybrid: Decoupling relay |
| C2 | - | Hybrid: Circuit 31 |
| C3/1 | 40 | Electronic Stability Program control unit |
| C3/2 | 60 | Electronic Stability Program control unit |
Interior prefuse box
F32/4k2 - Quiescent current cutout relay
| No. | A | Description |
|---|---|---|
| 1 | - | Engine compartment prefuse box |
| 2 | 150 | Hybrid: Additional battery relay for ECO start/stop function |
| 3 | 40 | Blower regulator |
| 4 | - | - |
| 5 | 150 | Diesel: PTC heater booster |
| 6 | 80 | Right A-pillar fuse box |
| 7 | 150 | Rear fuse and relay module |
| 8 | - | - |
| 9 | - | - |
| 10 | 60 | Valid for transmission 725 (except GLC 350 e 4Matic): Fully integrated transmission control unit |
| 100 | GLC 350 e 4Matic: Fully integrated transmission control unit | |
| 11 | - | - |
| 12 | 40 | Rear fuse and relay module |
| 13 | 50 | Right A-pillar fuse box |
