Mercedes-Benz GLC X253/C253 (2015-2019…) – fuse box

Mercedes-Benz GLC x253 – fuse box diagram

Year of production:  2015, 2016, 2017, 2018, 2019.

GLC250, GLC300, GLC350, GLC43, GLC63

The cigarette lighter fuse (power socket) on the Mercedes GLC x253 is # 445 (trunk socket), # 446 (front cigarette lighter, internal power socket) and # 447 (right rear center console socket) in the trunk.

READ:  Mercedes-Benz Vito III W447 (2014-2022) - fuse and relay box

Fuse box in the trunk

Option 1

Mercedes-Benz GLC x253 – fuse box diagram – trunk – option 1

Variant 2

Mercedes-Benz GLC x253 – fuse box diagram – trunk – option 2

1 – Terminal 30 “E1”
power supply 2 – Terminal 30g “E2” power supply

Number Amperes [A] Description
400 25 BlueTEC:   AdBlue ® control unit
401 15 BlueTEC:   AdBlue ® control unit
402 20 BlueTEC:   AdBlue ® control unit
403 30 Valid until November 30, 2015:

Front passenger seat, semi-electric seat adjustment switch

25 Valid from 01/12/2015:

Front passenger seat, semi-electric seat adjustment switch

404 30 Valid until November 30, 2015:

Driver seat, semi-electric seat adjustment switch

25 Valid from 01/12/2015:

Driver seat, semi-electric seat adjustment switch

405 Reserve
406 30 Left front door control unit
407 Reserve
408 30 Right rear door control unit
409 Reserve
410 5 Stationary radio receiver for remote control of the heater;

Antenna switch for telephone and stationary heater.

411 30 Left front reversible emergency tension retractor
412 7.5 Hybrid:

Battery management system control unit

413 5 Trunk lid control unit
414 5 Tuner module
415 5 Camera cover control unit;

Perfume sprayer generator.

416 7.5 Antenna amplifier / compensator for a mobile phone system

Mobile phone contact plate

417 5 360 ° camera control unit;

Reversing camera.

418 5 Rear seat heating control unit;

AIRSCARF control unit.

419 5 Front passenger seat lumbar support adjustment control unit
420 5 Driver’s seat lumbar support adjustment control unit
421 Reserve
422 Reserve
423 5 Sound system amplifier control unit
424 15 AIR BODY CONTROL Plus control unit;

Valid for engine 276:

Engine sound control unit.

425 Reserve
426 Reserve
427 Reserve
428 Reserve
429 Reserve
430 Reserve
431 25 Multifunctional control unit for a special purpose vehicle
432 25 Multifunctional control unit for a special purpose vehicle
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 Reserve
440 30 Rear seat heating control unit;

AIRSCARF control unit.

441 30 AIRSCARF control unit
442 25 Fuel system control unit
443 30 Right front reversible emergency tensioner
444 15 Tablet PC electrical connector
445 15 Trunk socket
446 15 Front cigarette lighter with ashtray lighting;

Vehicle interior power socket.

447 15 12V socket in the right center console
448 10 Valid for transmission 722, 725:

Ratchet capacitor

449 5 Valid for engine 626:

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 radar sensor for the outer right rear bumper;
Integrated radar sensor for the outer left rear bumper;
Center rear bumper radar sensor;
Outside Right Rear Bumper Radar Sensor;
Outside Left Rear Bumper Radar Sensor.
453 5 Left front bumper radar sensor;

Right front bumper radar sensor;

COLLISION PREVENTION ASSIST driver.

454 7.5 Valid for transmission 722:

In the  fully integrated transmission control unit

5 BlueTEC:

The control unit AdBlue ®

455 5 DC / AC converter control unit
456 5 Front long range radar sensor;

DISTRONIC electric controller.

457 5 Hybrid:
Power electronics control unit;DC / DC converter control unit;

Power electronics control unit.

458 5 Rear switch 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 heating via rear window anti-interference capacitor
464 40 Tailgate control unit. Liftgate control unit
465 40 Rear SAM control unit
466 40 Rear SAM control unit
467 40 Valid for engine 626:

Fuel filter element with integrated heater

Relay
S Vehicle interior relay 15 
T. Rear window heater relay
U Second row cup holder and socket relay
V BlueTEC:

AdBlue® relay

X 1st row of seats / trunk refrigerator box and sockets relay 
Y Spare relay 
ZR1 Valid for engine 626:  

Fuel filter heater relay 

ZR2 Backup relay
ZR3 Backup relay

Fuse box in the passenger footwell

Mercedes-Benz GLC x253 – fuse diagram – passenger footwell
Number Amperes [A] Description
301 5 Hybrid:

Pyrofuse through a 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 controller;

Driver seat heating controller;

Front seat heating control unit.

306 30 Front passenger seat control unit;

Front passenger seat heating control unit;

Front seat heating control unit.

307 Reserve
308 30 USA version:

Electrical connector for the electric brake control

309 10 Emergency call system control unit
5 HERMES control unit;

Telematics services communication module.

310 Reserve
311 10 Booster electronic blower control
312 10 Suspended control unit control unit
313 10 Hybrid:

DC / DC converter control unit

314 Reserve
315 5 Powertrain control unit;

Valid for diesel engine:

CDI control unit;

Valid for gasoline engine:

ME-SFI control unit.

316 7.5 Supplementary restraint system control unit
317 7.5 Panoramic 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 Japanese version:

Dedicated control unit for short-range communication.

322 20 Main unit
323 5 Parking system control unit
MF1 / 1 7.5 Audio / COMAND display Audio
fan motor
MF1 / 2 7.5 Multi-functional stereo camera;

Multifunctional monaural camera.

MF1 / 3 7.5 Rain and light sensor with additional functions;

Driver on the control panel.

MF1 / 4 7.5 Driver seat controller;

Driver seat heating controller;

Front seat heating control unit.

MF1 / 5 7.5 Front passenger seat control unit;

Front passenger seat heating control unit;

Front seat heating control unit.

MF1 / 6 7.5 Steering wheel lamp module control unit
MF2 / 1 5 Left front reversible emergency tension retractor
MF2 / 2 5 Audio / COMAND control panel;

Touchpad.

MF2 / 3 5 Right front reversible emergency tensioner
MF2 / 4 5 Heads-up display
MF2 / 5 5 Multimedia connection unit
MF2 / 6 5 Hybrid:

electric refrigerant compressor

MF3 / 1 5 Feedback line, clamp 30g, front SAM control unit
MF3 / 2 5 Radar sensors control unit 
MF3 / 3 Reserve
MF3 / 4 5 A group of buttons on the driver’s side instrument panel 
MF3 / 5 5 Rear air conditioning control unit
MF3 / 6 5 Rear air conditioning control unit

Fuse box on the dashboard

Mercedes-Benz GLC x253 – fuse diagram – dashboard
Number Amperes [A] Description
200 50 Front SAM control unit
201 40 Front SAM control unit
202 5 Alarm siren
203 20 Valid with gearbox 716:

Electric steering lock

204 5 Diagnostic connector
205 7.5 Electronic ignition lock control unit
206 5 Analog clock
207 15 Climate control unit
208 7.5 Instrument cluster
209 5 Climate control of the operating unit of the unit;

Top control control panel.

210 10 Steering wheel lamp module control unit
211 25 Reserve
212 5 Reserve
213 5 Electronic stability program control unit
214 30 Reserve
215 Reserve
216 7.5 Lamp in the glove box
217 5 Japanese version:

Dedicated control unit for short-range communication

218 7.5 Supplementary restraint system control unit
219 5 Mass detection system (WSS) control unit
220 Reserve
Relay
F. Relay, circuit 15R

Fuse box in the engine compartment

Mercedes-Benz GLC x253 – fuse diagram – engine compartment
Number Amperes [A] Description
100 40 Hybrid:Vacuum pump
101 15 Connecting sleeve, circumference 87/2
102 20 Connecting sleeve, circumference 87/1
103 15 Connecting sleeve, circumference 87/4
104 15 Connecting sleeve, circumference 87/3
105 15 Valid for gearbox 722.9 (except 722.930):

Automatic transmission auxiliary oil pump control unit

106 Reserve
107 60 Valid with engine 274.9:

Electric coolant pump

108 20 Static LED headlight:

Right front headlight;

High-performance LED headlight, dynamic LED headlight:
Left front headlight;
Right front headlight.

109 30 Wiper motor
110 20 Static LED headlight:

Left front headlight;

High-performance LED headlight, dynamic LED headlight:
Left front headlight;
Right front headlight.

111 30 Starter 
112 15 Hybrid:

accelerator pedal sensor 

113 Reserve
114 40 AIR BODY CONTROL compressor 
115 15 Left horn and right horn
116 Reserve
117 Reserve
118 5 Hybrid:

Electronic stability program control unit

119 15 Circuit 87 C2 connector sleeve 
120 5 Circuit 87 Connector C1 
121 5 Electronic stability program control unit
122 5 CPC relay 
123 Reserve
124 Reserve
125 5 Front SAM control unit 
126 5 Powertrain control unit;

Valid for diesel engine:

CDI control unit;

Valid for gasoline engine:

ME-SFI control unit.

127 5 Hybrid:

Voltage decay limiter

128 5 Left front lamp assembly and exterior light switch 
129 30 Hybrid:

Starter circuit 50 relay

129A 30 Hybrid: 

Starter circuit 50 relay

Relay
G. Relay 15 in the engine compartment
H. Starter relay 50
I Hybrid:

Vacuum pump relay (+)

J. CPC relay
K. Valid for the gearbox 722.9 (except 722.930):

Oil pump relay

L Horn relay 
M. Wiper park position heater relay 
N Relay circuit 87M. 
O Hybrid:

Starter circuit 15 relay

P. Valid with engine 274.9:

Coolant pump relay 

Q Hybrid:

Vacuum pump relay (-)

R AIR BODY CONTROL relay

Prefuse Box in the engine compartment

Option 1

Mercedes-Benz GLC x253 – fuse box diagram – pre-fuse box, engine compartment – option 1

Variant 2

Mercedes-Benz GLC x253 – fuse box diagram – pre-fuse box, engine compartment – option 1

F32 / 3k1 – Decoupling relay

Number Amperes [A] Description
1 Reserve
2 100 Valid for a diesel engine:

glow power level

3 60 Engine fuse and relay module
4 Connecting the on-board battery of the electrical system
5 150 Engine fuse and relay module
6 125 Left fuse and relay module
7 80 Fan motor (600W / 850W)
8 125 Electric power steering control unit
9 150 Fan motor (1000 W)
10 200 Pre-box inside the vehicle
11 Reserve
12 Hybrid:

Power electronics control unit;

With 651.9 engine and USA version:

Catalyst 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

Inner pre-box

Mercedes-Benz GLC x253 – fuse box diagram – interior pre-fuse

F32 / 4k2 – Relay for shutting down the closed circuit

Number Amperes [A] Description
1 Engine compartment pre-fuse box
2 150 Hybrid:Additional battery relay for the ECO start / stop function
3 40 Blower regulator
4 Reserve
5 150 Valid for diesel engine:

PTC heater amplifier

6 80 Fuse box on the right A pillar.
7 150 Rear fuse and relay module
8 Reserve
9 Reserve
10 60 Valid for transmission 725 (except GLC 350 e 4Matic):

In the fully integrated transmission control unit

100 GLC 350 e 4Matic:

In the  fully integrated transmission control unit

11 Reserve
12 40 Rear fuse and relay module
13 50 Fuse box on the right A pillar.

Leave a Reply