Mercedes-Benz W205 is the fourth generation of the German automaker's C-Class compact prestige cars, produced since February 2014. The model had its world premiere at the North American International Auto Show in January 2014. In this article we will understand in detail fuse box diagrams Mercedes C-Class (second generation; S205 station wagon, W205 sedan, C205 coupe and A205 convertible) of 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 years of manufacture
Here you will find the locations and photos of the mounting blocks. Also, we will separately mark the fuses responsible for the cigarette lighter and the fuel pump.
In the passenger compartment
Here there are three units responsible for the protection of the vehicle's electrical circuits.
Power fuse box
Placed behind the trim in the passenger footwell.
Diagram
No.
Description
Amps
1
Engine compartment power fuse box
2
Hybrid: Additional battery relay for ECO Start-Stop function
150
3
Fan controller
40
4
Not used
-
5
Diesel: Additional electric heater
150
6
A-pillar fuse box, right
80
7
Fuse and relay box in the rear part of the passenger compartment
150
8
Not used
-
9
Not used
-
10
With gearbox 725: Control unit for fully integrated gearbox control system 60A
Hybrid with gearbox 724: Control unit for fully integrated transmission control system 100A
60 / 100
11
Not used
-
12
Fuse and relay box in the rear part of the passenger compartment
40
13
A-pillar fuse box on the right side
50
F32
4k2
Standstill current cut-off relay
-
Unit at the end of the dashboard
It is located in the left end of the dashboard (driver's side). To access the fuses, remove the protective cover by prying it off with a screwdriver.
Diagram
No.
Description
Amps
F
Relay terminal 15R
-
200
Front SAM control unit
50
201
Front SAM control unit
40
202
A205: EDW / towing protection / interior monitor control unit
alarm siren
5
203
Transmission models 716: Electric steering column lock control unit
20
204
Diagnostic connector
5
205
Electronic ignition lock control unit
7.5
206
Analog clock
5
207
Heating, ventilation and air conditioning control unit
15
208
instrument cluster
7.5
209
Air conditioning control panel
5
210
Signals from the steering column electronic module control unit
5
211
AMG: Signals from the ESP control unit
25
212
Antenna switch for telephone and auxiliary heater
5
213
Signals from the ESP control unit
5
214
AMG: Electric parking brake control unit
30
215
Not used
-
216
Glove box light
7.5
217
Japan: DSRC toll data transmission control unit
5
218
Control unit for passenger restraint system (Supplemental Restraint System)
7.5
219
Weight Sensing System control unit
5
220
Not used
-
Unit on the rack under the dashboard
Located on the passenger side between the instrument panel and the door. Remove the inspection cover for access.
Photo is an example.
Diagram
No.
Description
Amps
MF1/1
Audio system display / COMAND, Audio unit fan motor (COMAND APS)
7.5
MF1/2
Multifunction camera
7.5
MF1/3
W205, S205, V205: Roof mounted control panel
Rain and light sensor with additional functions
7.5
MF1/4
Front seat heating control unit (from 01.06.2015), Driver seat heating control unit (up to 31.05.2015) / Driver seat control unit
7.5
MF1/5
Front passenger seat heating control unit (up to 05/31/2015), Front passenger seat control unit, Front seat heating control unit (from 06/01/2015)
7.5
MF1/6
Signals from the steering column electronic module control unit
7.5
MF2/1
Reversible front left seatbelt tensioner
5
MF2/2
Touch panel (Audio 20 radio or COMAND APS), Audio/COMAND control panel
5
MF2/3
Reversible front right seatbelt tensioner
5
MF2/4
Head-up display
5
MF2/5
Media Connectivity Module
5
MF2/6
Hybrid: Electric air conditioner compressor
5
MF3/1
Front SAM control unit terminal 30g readback wire
5
MF3/2
Radar control unit
5
MF3/3
Not involved
-
MF3/4
Buttons on the driver's side instrument panel
5
MF3/5
Rear air conditioning control panel
5
MF3/6
Tire pressure monitoring control unit
5
301
Hybrid: Pyro fuse (F63) for high voltage mains disconnection
5
302
Front right door control unit
30
303
A205, C205: Rear compartment systems control unit
W205, S205, V205: Rear left door control unit
30
304
Transmission 722: Automatic transmission servo module for DIRECT SELECT system
20
305
Front seat heating control unit (from 01.06.2015), Driver seat heating control unit (until 31.05.2015), Driver seat control unit
30
306
Front passenger seat control unit
up to 05/31/2015: Front passenger seat heating control unit
as of 06/01/2015: Front seat heating control unit
30
307
AMG: Active engine mount control unit
5
308
USA: Electrical plug connection of the Elektric-Brake-Control function
30
309
Emergency call system control unit
10
Telecommunication Services Communication Module, HERMES Control Unit
5
310
AMG: Active engine mount control unit
20
311
Electronic control of the auxiliary fan in the rear of the passenger compartment
10
312
Ceiling Control Panel
10
313
Hybrid: Power electronics control unit
10
314
AMG: Electronic differential control unit
5
315
Diesel: CDI control unit
Petrol: ME control unit
Transmission control unit
5
316
Passenger Restraint System Control Unit (Supplemental Restraint System)
7.5
317
Sliding sunroof control module (panoramic sunroof)
30
318
Autonomous heater control unit
20
319
Hybrid: High voltage electric heater system
5
320
Adaptive damping system control unit, AIRMATIC control unit
25
321
Japan: DSRC toll communication control unit
5
322
Head device
20
323
Parking assistance control unit
5
In the luggage compartment
The fuse box is located behind the floor pan.
Diagram
Type 1
Type 2
No.
Amps
Description
S
Cabin terminal relay #15
T
Rear window heater relay
U
Relay for cupholder and sockets in 2nd row of seats
IN
AdBlue® system
X
Relay for refrigerator box and power outlets in 1st row seat / trunk
Y
not used
ZR1
Models with 626 engine: fuel filter heating
ZR2
not used
ZR3
not used
400
25
AdBlue® system
401
15
AdBlue® system
402
20
AdBlue® system
403
30
up to 30.11.2015 Front passenger seat position adjustment switch
25
from 01.12.2015: Front passenger seat position adjustment switch
404
30
Before 11/30/2015: Driver seat position adjustment switch
25
From 12/01/2015: Driver's seat position adjustment switch
405
-
Not involved
406
30
Front left door control unit
407
-
Not involved
408
30
A205, C205: Rear compartment systems control unit
W205, S205, V205: Rear right door control unit
409
-
Not involved
410
15
Receiver of the radio remote control of the autonomous heater
411
30
Reversible front left seatbelt tensioner
412
7.5
Hybrid: Battery management system control unit
413
5
Trunk lid actuator control unit
414
5
Tuner module (TV tuner, digital radio (DAB)) or SIRIUS satellite radio)
415
5
Air fragrance system generator, Chamber lid control unit