Mercedes-Benz C-Class (2007-2014) W204 – fuses diagram (2024)

12 thousand Hits

Fuse box in the engine compartment

Mercedes-Benz C-Class (2007-2014) W204 – fuses diagram (1)

Number
Function
A
1Electronic stability program control unit25
2Left front door controller30
3Valid until 31.3.10/XNUMX/XNUMX:
Right entrance door controller
Valid from 1.4.10 with model 204.0/2/9:
Right rear door control unit		30
4until 31.8.08/XNUMX/XNUMX:
Fuel pump control unit
Applies to engine 156 until 31.8.08/XNUMX/XNUMX:
Left fuel pump control unit
Right fuel pump control unit
Applies to engine 642, engine 651:
Fuel filter condensation sensor with heating element
Applies to engine 651 to 31.5.10/646/XNUMX, engine XNUMX:
Control unit for fuel filter condensation sensor with heating element		7.5
Valid for diesel engines from 1.9.08/XNUMX/XNUMX:
Fuel filter condensation sensor with heating element
Applies to engine 276 (USA, South Korea):
Activated carbon canister shut-off valve
Valid for model 204.0/2/3 from 1.3.11, 204.9 from 1.6.12:
Headlight control unit		20
5Rear SAM control unit with fuse and relay module
Valid from 1.6.10/XNUMX/XNUMX
External lights switch
Valid for the 156 Black series engine from 1.7.11:
Differential coolant circulation relay on the rear axle		7.5
6Applies to diesel engine:
ME-SFI [ME] control unit
Applies to petrol engine:
CDI control unit		10
7Starter20
8Additional restraint control unit7.5
9Glove compartment power socket15
10Wiper motor30
11Audio/COMAND display
Audio/COMAND control panel
Navigation module holder		7.5
12Automatic air conditioning control and operating unit
Upper control panel control unit		7.5
13Steering column module control module
Multi-function camera		7.5
14Electronic stability program control unit7.5
Headlight control unit20
15Additional restraint control unit7.5
16Diagnostic connector (up to 31.5.09/XNUMX/XNUMX)
Mobile phone electrical connector
Valid for gearbox 722: Electronic control unit for the gear lever module		5
ECO start/stop function:
Electric gear oil pump		20
17Panoramic sliding roof control module
Upper control panel		30
18Valid until 30.11.09/XNUMX/XNUMX:
External lights switch
Valid for model 204.0/2 from 1.3.11, model 204.3:
Top control panel
Valid for model 204.0/2 to 28.2.11, model 204.9:
Air Conditioning LIN Climate Control Panel Positive Line Connector Bushing
Vehicle interior and harness for tailamp electrical connector		7.5
19Electric steering lock control unit
Electronic ignition lock control unit		20
20Electronic stability program control unit40
21Brake light switch
Light switch in the glove compartment
Recognition of occupied front passenger seat and ACSR
Electronic toll collection system - pre-installation of an electric fuse (Japan)		7.5
22Combustion engine with fan and air conditioning with built-in control
Electrical connector for internal wiring harness and engine		15
23Electrical connector for internal wiring harness and engine
Applies to diesel engine:
Rear SAM control unit with fuse and relay module
CDI control unit
Terminal 87 connector sleeve
Applies to engine 271:
Terminal 87 M1e connection sleeve
Valid for engine 272:
Circuit 87 M1i connector bushing		20
24Electrical connector for internal wiring harness and engine
Internal and engine wiring harness electrical connector
Applies to engine 642:
Radiator shutter actuator
Valid for engine 272:
Terminal 87 M1e connection sleeve
Applies to diesel engine:
Terminal 87 connector sleeve
Applies to engine 646:
CDI control unit		15
25Applies to engines 156, 271, 272, 274, 276:
ME-SFI [ME] control unit
Applies to diesel engine:
Oxygen sensor before the catalytic converter
Valid from 1.6.10 for model 204.3 with 651 Sport Edition engine:
Exhaust sound generator control unit		15
26Radio
Radio with automatic pilot system
COMAND control unit		20
27Electric steering lock
Electronic ignition lock
Applies to diesel engine:
CDI control unit
Applies to petrol engine:
ME-SFI [ME] control unit		7.5
28Instrument cluster7.5
29Right front headlight10
30Left front light assembly
Applies to engine 642:
Electrical connector for internal wiring harness and engine wiring harness		10
31ALeft horn
Right horn		15
31BLeft horn
Right horn		15
32Applies to engines 156, 271, 272, 276:
Electric air pump		40
Applies to engine 156:
Oil cooler fan motor		20
33Applies to 722.6 transmission:
Electronic control unit for the transmission system
Applies to 722.9 transmission:
Fully integrated transmission controller		10
34Valid for engine 271, 272 from 1.9.08/XNUMX/XNUMX:
Fuel pump control unit
Valid for engine 156 from 1.9.08/XNUMX/XNUMX:
Left fuel pump control unit
Right fuel pump control unit		7.5
35Valid from 1.3.11/XNUMX/XNUMX:
Electronic stability program control unit		5
36Valid from 1.3.11/XNUMX/XNUMX:
DISTRONIC electric controller
Valid for model 204.902/982/984:
Electro-hydraulic power steering		7.5
Relay
JCircuit 15 relay
KRelay terminal 15R
LLBackup relay
MStarter relay circuit 50
OEngine circuit 87 relay
OHorn relay
PApplies to engines 156, 272, 276: Secondary air injection relay
QBackup relay
RCase circuit 87 relay

Fuse box in the trunk

See Also
Fuse box diagram Mercedes 204 and relay with designation and locationMercedes-Benz Fuse Box Diagrams • FuseCheck.comFuse Box Diagram Mercedes-BenzFuse Box Diagram Mercedes-Benz C-Class (W204; 2008-2014)

to 31.05.2009

Mercedes-Benz C-Class (2007-2014) W204 – fuses diagram (2)

from 1.06.2009

Mercedes-Benz C-Class (2007-2014) W204 – fuses diagram (3)

Number
Function
A
37from 2008/XNUMX:
NECK-PRO driver's seat - headrest electromagnetic coil
NECK-PRO front passenger seat – headrest electromagnetic coil		5
until 2008:
NECK-PRO driver's seat - headrest electromagnetic coil
NECK-PRO front passenger seat – headrest electromagnetic coil		7.5
38Rear wiper motor15
39Valid for model 204.0/2/9 except UK vehicles until 31.5.09/XNUMX/XNUMX:
Left rear door control unit		30
40Reserve-
41Valid for model 204.0/2/9 until 31.3.10/XNUMX/XNUMX:
Right rear door control unit
Valid from 1.4.10/XNUMX/XNUMX
Right entrance door controller		30
42Applies to petrol engine or engine 642 from 1.12.09/651/1.6.09 or engine XNUMX from XNUMX/XNUMX/XNUMX:
Fuel pump control unit		25
Applies to engine 646 or engine 642 until 30.11.09/651/31.5.09 or engine XNUMX until XNUMX/XNUMX/XNUMX:
Fuel pump
Applies to petrol engine (up to 2009):
Fuel pump control unit		20
43Valid from 1.6.09/XNUMX/XNUMX with automatic air conditioning:
Rear blower motor		5
44Switch group, right front seat position
Front passenger seat partially electric seat adjustment switch		30
45Left front seat adjustment switch group
Driver's seat partially electric driver's seat adjustment switch		30
46Antenna amplifier for rear window FM antenna
Alarm siren
Internal protection and towing protection
Rear window antenna amplifier 1
TV 1 and DAB Band III antenna amplifier
DAB III band antenna
TV 2 and KEYLESS-GO antenna amplifier
KEYLESS-GO antenna amplifier		7.5
47Reserve-
48Reserve-
49Rear window heating40
50Right front reversible emergency tension retractor50
51Left Front Reversible Emergency Power Retractor (A76)50
52Reserve-
53from 2008: Trailer recognition control unit15
up to 2008: Trailer recognition control unit30
54to 31.5.09/XNUMX/XNUMX: Trailer recognition control unit
Valid for model 204.075/077/077/275/277:
Lumbar support for the driver's seat and a group of side pin adjustment switches
Front passenger seat lumbar support and side pin adjustment switch group
Front passenger seat AMG valve block
Driver's seat AMG valve block		7.5
from 1.6.09/XNUMX/XNUMX: Trailer recognition control unit15
55Valid from 1.6.09/XNUMX/XNUMX
AdBlue		5
56Trailer recognition control unit
Trailer socket		15
Valid for model 204.077/277/377/377 until 31.5.09/XNUMX/XNUMX:
Lumbar support for the driver's seat and a group of side pin adjustment switches
Front passenger seat lumbar support and side pin adjustment switch group
Front passenger seat AMG valve block
Driver's socket AMG valve lock		5
57Trailer recognition control unit20
58from 2008: Trailer recognition control unit20
up to 2008: Trailer recognition control unit30
59from 2008/XNUMX:
Parking system control unit
Left front bumper DISTRONIC sensor (DTR)
Right front bumper DISTRONIC sensor (DTR)
Intelligent radar sensor for left rear bumper
Smart radar sensor for right rear bumper		5
until 2008:
PARKTRONIC control unit
Radar sensor control unit		7.5
60Multi-contour pneumatic pump with seat7.5
61Lifting gate controller40
62Driver's seat controller30
63Front passenger seat control unit30
64DC/AC converter controller25
65Adaptive damping system control unit
Steering light module control module		15
66Reserve-
67from 2008: Sound system amplifier control unit30
up to 2008: Sound system amplifier control unit40
68Reserve-
69Bass booster on the back20
70Tire pressure monitor control unit5
71Front cigarette lighter with ashtray illumination
Vehicle interior power socket		15
72Loading area junction box
115V power socket		15
73Diagnostic connector (from 1.6.09/XNUMX/XNUMX)
Stationary radio receiver for remote control of the heater
Valid for engine 156 from 1.7.11/XNUMX/XNUMX:
Transmit mode control unit		7.5
74KEYLESS-GO control unit15
75Stationary heater20
76Vehicle interior power socket15
77Weight Control System (WSS)7.5
78Left front seat ventilation controller
Right front seat ventilation regulator		7.5
79Parking system control unit5
80A unit that controls the vision and radar sensor system
Parking system control unit		7.5
81Multimedia interface driver5
82UMTS mobile phone system compensator
TV tuner control unit (up to 31.5.09/XNUMX/XNUMX; Japan)
Digital TV tuner (until 31.5.09/XNUMX/XNUMX; Japan)		5
83Electronic toll collection control unit (Japan)
Emergency call system control unit
Reversing camera
Left rear display
Right rear display		7.5
84Satellite Digital Audio Radio (SDAR) Driver
SDAR/high-definition tuner control unit
Digital control unit for audio broadcasting
Backup camera power module
Reversing camera control unit
360 camera control unit		7.5
85TV tuner control unit (up to 31.5.09/XNUMX/XNUMX; Japan)
Digital TV tuner (as of 1.6.09/XNUMX/XNUMX; Japan)		7.5
86DVD player7.5
87Emergency call system control unit7.5
88Valid from 1.6.09/XNUMX/XNUMX
Spare		-
89Valid from 1.6.09/XNUMX/XNUMX:
Trailer recognition control unit
Valid from 1.6.09/156/XNUMX with engine XNUMX:
Oil cooler fan motor relay		20
90Valid from 1.6.09/XNUMX/XNUMX
AdBlue® fuse block
AdBlue® feed relay		40
91DC/AC converter controller25
ECO start/stop: gear oil auxiliary pump control unit
Valid for engine 642: Ventilation line heater element		20
92Valid from 1.6.09/XNUMX/XNUMX
Spare		-
Relay
ARelay terminal 15
BCircuit 15R relay (1)
CHeated rear window relay
DApplies to diesel engine: Fuel pump relay
ERear window wiper relay
FSeat adjustment relay
GCircuit 15R relay (2)

Dashboard fuse panel

See Also
Fuses and relays Mercedes C-class (W204; 2007 - 2014)

Mercedes-Benz C-Class (2007-2014) W204 – fuses diagram (4)

Number
Function
A
116Driver's seat controller30
117Adaptive damping system control unit15
118Reserve-
119Rear blower motor
AMG Performance Media control unit (valid from 1.6.12/XNUMX/XNUMX)		7.5
120Reserve-
121Reserve-
122Reserve-
123Steering light module control module10
124Reserve-
125Reserve-
126Front passenger seat control unit30
127Reserve-
128Reserve-
129Applies to engine 156: Oil cooler fan motor relay20
130Reserve-
131Reserve-
132Reserve-
133Reserve-
134Reserve-
135Reserve-

Front prefusion box (up to 2010)

Mercedes-Benz C-Class (2007-2014) W204 – fuses diagram (5)

Number
Function
A
88Pyrofusion:
Alternator
Starter
89Front SAM control unit with fuse and relay module125
90Rear SAM control unit with fuse and relay module40
91Combustion engine with fan and air conditioning with built-in control80
100Air conditioner casing40
101Applies to petrol engine: Front SAM control unit with fuse and relay module60
103Applies to diesel engine: PTC booster heater150
104Internal fuse box70
105Front SAM control unit with fuse and relay module100
106Rear SAM control unit with fuse and relay module150
107Reserve-
108Reserve-
109Reserve-
110Reserve-

since 2010

without ECO start/stop switch

Mercedes-Benz C-Class (2007-2014) W204 – fuses diagram (6)

ECO start/stop

Mercedes-Benz C-Class (2007-2014) W204 – fuses diagram (7)

Number
Function
A
150without ECO start/stop function: Pirofuza 88400
ECO start/stop:
Alternator
Starter		200
151Combustion engine with fan and air conditioning with built-in control100
152Front SAM control unit with fuse and relay module150
153without ECO start/stop: Spare100
ECO start/stop function and front battery position: Front SAM control unit with fuse and relay module60
154ECO start/stop function and front battery position: Front SAM control unit with fuse and relay module60
Applies to diesel engines and ECO Start/stop: PTC heater150
155without ECO start/stop: Spare50
ECO start/stop function: Spare100
156Applies to diesel engine without ECO start/stop function: PTC heater150
ECO start/stop function: Front SAM control unit with fuse and relay module100
157Valid for model 204.902/982/984 without ECO start/stop function: Electrohydraulic power steering
ECO start/stop: Spare		100
158without ECO start/stop: blower controller50
ECO start/stop: Rear SAM control unit with fuse and relay module150
159Multifunctional control unit for a special purpose vehicle50
ECO start/stop: Additional battery relay200
160without ECO start/stop: Spare60
ECO start/stop: blower regulator50
161without ECO start/stop function: SAM front control unit with fuse and relay module100
Multifunctional control unit for a special purpose vehicle50
162without ECO start/stop: Spare100
ECO start/stop: Spare60
163without ECO start/stop function: Rear SAM control unit with fuse and relay module150
164without ECO start/stop function: Rear SAM control unit with fuse and relay module80

Rear pre-fuel box

Mercedes-Benz C-Class (2007-2014) W204 – fuses diagram (8)

Number
Function
A
111Applies to petrol engine: ME-SFI [ME] control unit
Applies to diesel engine: CDI control unit		60
112Multifunctional control unit for a special purpose vehicle80
113Applies to engine 156:
Left fuel pump control unit
Right fuel pump control unit		40
114Reserve-
115Multifunctional control unit for a special purpose vehicle100
Mercedes-Benz C-Class (2007-2014) W204 – fuses diagram (2024)

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