Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercedes-Benz E-Class (W212; E180, E200, E220, E250, E300, E350, E400, E500 & E63 AMG) (2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016).
Checking and Replacing Fuses
The fuses in your vehicle serve to close down faulty circuits. If a fuse blows, all the components on the circuit and their functions stop operating. If a fuse has blown, the inside element will be melted. Blown fuses must be replaced with fuses of the same rating, which you can recognize by the color and value. The fuse ratings are listed in the fuse allocation chart. The fuse allocation chart is located in the vehicle tool kit in the storage compartment under the trunk/cargo compartment floor.
If a newly inserted fuse also blows, have the cause traced and rectified at a qualified specialist workshop, e.g. an authorized Mercedes-Benz Center.
Location
- F32 – Front electrical prefuse box
- F33 – Rear prefuse box (engine 273.9)
- F96 – Additional battery circuit 30 fuse (7,5 A)(with ECO start/stop )
- F270 – Additional battery protection (Hybrid)
- K40/10 – HYBRID fuse and relay module (Hybrid)
- K114 – ECO start/stop function additional battery relay
- N10/1 – Front SAM control unit with fuse and relay module
- N10/2 – Rear SAM control unit with fuse and relay module
Engine Compartment Fuse Box
The fuse block is located in the engine compartment on the left-hand side of the vehicle when viewed in the direction of travel.
- Make sure that the windshield wipers are turned off.
- Open the hood.
- Use a dry cloth to remove any moisture from the fuse box.
- To open: remove lines (2) from the guides.
- Move lines (2) aside. Route the lines behind connection (3) to do this.
- Open clamp (1).
- Remove the fuse box cover forwards.
- To close: check whether the rubber seal is lying correctly in the cover.
- Insert the cover at the rear of the fuse box into the retainer.
- Fold-down cover and close clamps (1).
- Secure lines (2) in the guides.
- Close the hood.
№
Fused component
A
1
Valid for left-hand drive vehicle:
25
Electronic Stability Program control unit
Premium Electronic Stability Program control unit
Hybrid: Regenerative braking system control unit
Valid for right-hand drive vehicles: Blower regulator
2
up to 31.05.2010: Left front door control unit
30
Valid for right-hand drive vehicles as of 01.06.2010: Left rear door control unit
3
up to 31.05.2010: Right front door control unit
30
Valid for left-hand drive vehicles as of 01.06.2010: Right rear door control unit
4
Valid with engine 157: Fuel system control unit
20
Valid for engine 642, 651 up to 31.05.2010: Fuel filter condensation sensor with heating element
Valid for engine 651 (with retrofitted heated fuel filter) up to 31.05.2010: Control unit for fuel filter condensation sensor with heating element
7.5
5
Instrument cluster
7.5
Exterior lights switch
Rear SAM control unit with fuse and relay module
Valid as of 01.03.2013: Electronic Stability Program control unit
Valid as of 01.03.2013: Premium Electronic Stability Program control unit
6
Valid for diesel engine: CDI control unit
10
Valid for gasoline engine: ME-SFI control unit
Valid for engine 271.958, 274.920: CNG control unit
7
Starter
20
8
Supplemental restraint system control unit
7.5
9
Glove compartment socket
15
10
Wiper motor
30
Wiper park position heater
11
Audio/COMAND display
7.5
Audio/COMAND control panel
Navigation module
Cradle for navigation module
COMAND fan motor
12
ACC control and operating unit
7.5
Upper control panel control unit
Valid for transmission 722, 724, 725: Automatic transmission transmission mode button
AIRMATIC: Suspension button group
13
Steering column tube module control unit
7.5
Multifunction camera
Stereo multifunction camera
14
Electronic Stability Program control unit
7.5
Premium Electronic Stability Program control unit
15
Supplemental restraint system control unit
7.5
16
Hybrid: Electrical refrigerant compressor
5
Valid with transmission 722.930/931: DIRECT SELECT INTERFACE
Valid for transmission 722 (except 722.930/931): Electronic selector lever module control unit
17
Overhead control panel control unit
30
Panoramic sliding roof control module
18
Exterior lights switch
7.5
Hybrid: Power electronics control unit
Valid up to 28.02.2013:
Instrument panel switch group
Upper control panel control unit
Valid for transmission 722 with ECO start/stop: Transmission oil auxiliary pump relay
19
Valid except transmission 722.9:
20
Electronic ignition lock control unit
Electric steering lock control unit
20
Valid for left-hand drive vehicle:
40
Electronic Stability Program control unit
Premium Electronic Stability Program control unit
Valid for left-hand drive vehicle, Hybrid: Regenerative braking system control unit
21
Front passenger seat occupied recognition and ACSR
7.5
Weight sensing system (WSS) control unit
except Hybrid up to 28.02.2013:Brake lights switch
Hybrid up to 28.02.2013:
Hybrid brake light switch
Switched through glove compartment lamp switch
Glove compartment lamp
22
Valid for fan motor with 650, 800 W: Fan motor for internal combustion engine and air conditioning with integrated control
15
Valid for engine 156:
Electrical connector for interior harness and engine wiring harness
Circuit 87 M2e connector sleeve
Valid for engine 157, 271, 272, 273, 274, 276, 278: Electrical connector for interior harness and engine wiring harness
Valid for engine 271, 272.98, 274.9, 276 and engine 651 (except with 4MATIC): Radiator shutters actuator
Valid for engine 642, 651:
CDI control unit
Electrical connector for interior harness and engine wiring harness
23
Valid for diesel engine: Rear SAM control unit with fuse and relay module
20
Valid for engine 271, 642, 651: Circuit 87 M1e connector sleeve
Valid for engine 156, 157, 271, 272, 273, 274, 276, 278, 642, 651: Electrical connector for interior harness and engine wiring harness
Valid for engine 271: ME-SFI control unit
24
Valid for engine 156, 157, 271, 272, 273, 274, 276, 278, 642, 651: Electrical connector for interior harness and engine wiring harness
15
Valid for diesel engine: CDI control unit
Valid for gasoline engine: ME-SFI control unit
Valid for engine 271.958, 274.920: CNG control unit
25
Valid for engine 642, 651 with BlueTEC:
15
Nitrogen oxides control unit downstream of diesel particulate filter
Nitrogen oxides control unit downstream of the SCR catalytic converter
Soot particulate sensor control unit
Valid for gasoline engine: ME-SFI control unit
Hybrid:
Transmission cooling coolant circulation pump relay
HYBRID power electronics coolant circulation pump relay
Valid for engine 156: Connector sleeve, circuit 87 M3e
26
Radio
20
Radio with auto pilot system
COMAND controller unit
27
Valid for gasoline engine: ME-SFI control unit
7.5
Valid for diesel engine:
CDI control unit
Electronic ignition lock control unit
Valid for engine 271.958, 274.920: CNG control unit
28
Instrument cluster
7.5
29
Valid up to 28.02.2013: Right front lamp unit
10
30
Valid up to 28.02.2013: Left front lamp unit
10
31A
Left fanfare horn
15
Right fanfare horn
31B
Left fanfare horn
15
Right fanfare horn
32
Valid for engine 272: Electric air pump
40
33
Valid for transmission 722.6: Electronic transmission control control unit
10
Valid for transmission 722.9, 724, 725: Fully integrated transmission control controller unit
34
Valid for engine 156, 271, 272, 273, 642, 651: Fuel system control unit
7.5
35
Hybrid: HYBRID control unit power supply relay
7.5
36
Night View Assist control unit
7.5
Valid up to 28.02.2013: DISTRONIC electric controller unit
Valid as of 01.03.2013: Front long-range radar sensor
Valid as of 01.03.2013: COLLISION PREVENTION ASSIST controller unit
Relay
J
Circuit 15 relay
K
Circuit 15R relay
L
Wiper park position heater relay
M
Starter circuit 50 relay
N
Engine circuit 87 relay
O
Horn relay
P
Valid for engine 272: Secondary air injection relay
Q
Transmission oil auxiliary pump relay
R
Chassis circuit 87 relay
HYBRID fuse and relay module
№
Fused component
A
130
Regenerative braking system control unit
5
131
Battery management system control unit
5
132
Spare
-
133
Power electronics control unit
5
134
Vacuum pump relay (-)
5
135
Battery management system control unit
7.5
136
Pyrotechnical separator
7.5
137
Power electronics circulation pump 1
7.5
138
Power electronics circulation pump 2
7.5
139
Valid for engine 651: Transmission cooling coolant circulation pump
7.5
140
Vacuum pump relay (+)
40
141
Spare
-
142
Spare
-
Relay
S
Transmission cooling coolant circulation pump relay
T
HYBRID control unit power supply relay
U
HYBRID power electronics coolant circulation pump relay
Front electrical prefuse box
№
Fused component
A
MR8
Pyrofuse, triggered by Supplemental Restraint System control unit
-
MR1
Electrical power steering control unit
50
MR2
Spare
-
MR3
Spare
-
MR4
Fan motor for internal combustion engine and air conditioning with integrated control
100
MR5
Valid for diesel engine: PTC heater booster
150
MR6
Valid for front on-board electrical system battery: Front SAM control unit with fuse and relay module
60
MR7
Front SAM control unit with fuse and relay module
150
PIN1
Valid for left-hand drive vehicles: Blower regulator
50
Valid for right-hand drive vehicles:
Electronic Stability Program control unit
Premium Electronic Stability Program control unit
PIN2
Valid for right-hand drive vehicles:
50
Electronic Stability Program control unit
Premium Electronic Stability Program control unit
PIN3
AIRmatic relay
60
Valid with transmission 725: Fully integrated transmission control unit
MRG1
Spare
-
MRG2
Front SAM control unit with fuse and relay module
100
IG1
Rear SAM control unit with fuse and relay module
150
I1
Valid for front on-board electrical system battery: Rear SAM control unit with fuse and relay module
100
with ECO start/stop
№
Fused component
A
MR8
Alternator
350
Stationary heater control unit
MR4
Fan motor for internal combustion engine and air conditioning with integrated control
100
MR5
Valid for diesel engine: PTC heater booster
150
MR6
Valid for front on-board electrical system battery: Front SAM control unit with fuse and relay module
60
MR7
Front SAM control unit with fuse and relay module
150
MR9
Spare
-
MG2
Front SAM control unit with fuse and relay module
100
MR3
Electrical power steering control unit
80
IG1
Rear SAM control unit with fuse and relay module
150
IM1
Valid for front on-board electrical system battery: Rear SAM control unit with fuse and relay module
100
PIN1
Valid for left-hand drive vehicles: Blower regulator
50
Valid for right-hand drive vehicles:
Electronic Stability Program control unit
Premium Electronic Stability Program control unit
PIN2
Valid for right-hand drive vehicles:
50
Electronic Stability Program control unit
Premium Electronic Stability Program control unit
PIN3
AIRmatic relay
60
Valid with transmission 725: Fully integrated transmission control unit
Hybrid
№
Fused component
A
MR8
Pyrofuse, triggered by Supplemental Restraint System control unit
-
MR4
Fan motor for internal combustion engine and air conditioning with integrated control
100
MR5
Valid for diesel engine: PTC heater booster
150
MR6
Valid for front on-board electrical system battery: Front SAM control unit with fuse and relay module
60
MR7
Front SAM control unit with fuse and relay module
150
MR9
HYBRID fuse and relay module
150
MG2
Front SAM control unit with fuse and relay module
100
MR3
Electrical power steering control unit
80
IG1
Rear SAM control unit with fuse and relay module
150
IM1
Valid for front on-board electrical system battery: Rear SAM control unit with fuse and relay module
100
PIN1
Valid for left-hand drive vehicles: Blower regulator
50
Valid for right-hand drive vehicles: Regenerative braking system control unit
PIN2
Valid for right-hand drive vehicles: Regenerative braking system control unit
50
PIN3
AIRmatic relay
60
Luggage Compartment Fuse Box
It is in the trunk/cargo compartment on the right-hand side of the vehicle, when viewed in the direction of travel.
Sedan
- Open the trunk lid.
- To open: release cover (1) at the top right and left-hand sides with a flat object.
- Open the cover (1) downwards in the direction of the arrow.
Wagon
- Open the tailgate.
- To open: pull handle (1) on the cover.
- Open the cover downwards.
- Swing trim (2)
№
Fused component
A
37
Driver seat NECK-PRO head restraint solenoid
7.5
Front passenger seat NECK-PRO head restraint solenoid
38
Valid for model 212.2: Tailgate wiper motor
15
39
up to 31.05.2010: Left rear door control unit
30
Valid for right-hand drive vehicles as of 01.06.2010: Left front door control unit
40
Spare
-
41
up to 31.05.2010: Right rear door control unit
30
Valid for left-hand drive vehicles as of 01.06.2010: Right front door control unit
42
Fuel pump relay
25
Valid for engine 156, 271, 272, 273, 274, 276, 278, 642, 651: Fuel system control unit
43
Telematics services communications module
7.5
44
Front passenger seat partially electric seat adjustment switch
30
45
Driver seat partially electric seat adjustment switch
30
46
FM 1, AM, CL [ZV] and KEYLESS-GO antenna amplifier
7.5
Rear window antenna amplifier 1
DAB band III antenna
Alarm siren
Interior protection and tow-away protection control unit
Valid as of 01.06.2011 on engine 157, 276, 278: Coolant circulation pump relay
47
Spare
-
48
Spare
-
49
Rear window heater
40
50
Right front reversible emergency tensioning retractor
50
51
Left front reversible emergency tensioning retractor
50
52
Spare
-
53
Trailer recognition control unit
30
54
Trailer recognition control unit
15
55
Spare
-
56
Trailer socket
15
57
Trailer recognition control unit
20
Left front illuminated door sill molding voltage converter
7.5
Right front illuminated door sill molding voltage converter
58
Trailer recognition control unit
25
59
Left front bumper DISTRONIC (DTR) sensor
7.5
Right front bumper DISTRONIC (DTR) sensor
60
Multicontour seat pneumatic pump
7.5
Dynamic multicontour seat pneumatic pump
30
61
Trunk lid control control unit
40
Tailgate control control unit
62
Driver seat control unit
25
63
Rear seat heater control unit
25
64
Front passenger seat control unit
25
65
up to 28.02.2013: Steering wheel heater control unit
7.5
as of 01.03.2013: Steering column tube module control unit
10
66
Rear blower motor
7.5
67
Sound system amplifier control unit
40
68
AIRmatic control unit
15
Rear axle electronic level control control unit
69
Rear bass speaker amplifier
25
70
Tire pressure monitor control unit
5
71
Vehicle interior socket, front
15
Front cigarette lighter with ashtray illumination
72
Cargo area socket
15
73
Diagnostic connector
5
Stationary heater radio remote control receiver
Valid with transmission 722.930/931: Transmission mode control unit
74
KEYLESS-GO control unit
15
Valid as of 01.03.2013: Right front lamp unit
Valid as of 01.03.2013: Left front lamp unit
Valid as of 01.12.2011: DC/AC converter control unit
75
Stationary heater unit
20
Valid as of 01.03.2013 (with Dynamic LED headlamps:
Left front lamp unit
Right front lamp unit
Valid for engine 156: Oil cooler fan motor relay
25
76
Rear cup holder
15
Rear center console socket
Rear USB electrical connection
77
Rear cup holder
7.5
Valid until 28.02.2013: Weight sensing system (WSS) control unit
Valid for China, South Korea vehicles: Navigation processor
78
Media interface control unit
7.5
Multimedia connection unit
79
Valid up to 31.05.2010: Radar sensors control unit
5
Valid as of 01.06.2010: Video and radar sensor system control unit
Valid as of 01.03.2013: Chassis gateway control unit
80
Parking system control unit
5
81
Cellular telephone system antenna amplifier / compensator
5
Mobile phone electrical connector
Navigation processor
82
Left front seat ventilation blower regulator
10
Right front seat ventilation blower regulator
83
Circuit 15R connector sleeve
7.5
Emergency call system control unit
Valid until 31.05.2010: Navigation processor
Japan version: Electronic Toll Collection control unit
84
Reversing camera power supply module
5
Digital Audio Broadcasting control unit
Valid up to 28.02.2013: Reversing camera control unit
Valid as of 01.03.2013: Reversing camera
Valid up to 31.05.2010: SDAR/high definition tuner control unit
Valid as of 01.06.2010: Satellite digital audio radio (SDAR) control unit
Valid as of 01.03.2013: 360° camera control unit
85
Valid until 28.02.2015: TV tuner (analog/digital)
7.5
Valid until 28.02.2015 : Digital TV tuner
Valid as of 01.03.2015: Tuner unit
86
DVD player
7.5
Left rear display
Right rear display
87
Emergency call system control unit
7.5
Special vehicle multifunction control unit (SVMCU)
Valid as of 01.06.2011 with engine 157, 274, 276, 278: Coolant circulation pump relay
Valid as of 01.03.2015: Telematics services communications module
88
Valid with transmission 722.9: Intelligent servo module for DIRECT SELECT
15
89
Trailer recognition control unit
30
Special vehicle multifunction control unit (SVMCU)
Valid up to 28.02.2013 with engine 157: Fuel system control unit
Valid as of 01.03.2013 (with Static LED headlamps):
Right front lamp unit
Left front lamp unit
90
Coolant circulation pump relay
40
Valid for engine 642.8 with BlueTEC: AdBlue fuse block
91
Valid for transmission 722 with ECO start/stop function: Front SAM control unit with fuse and relay module
10
92
Valid as of 01.03.2013: KEYLESS-GO control unit
15
Valid as of 01.03.2013: Rear switching module
Valid until 30.11.2011: DC/AC converter control unit
Relay
A
Circuit 15 relay
B
Circuit 15R relay (1)
C
Rear window heater relay
D
Valid for diesel engine: Fuel pump relay
E
Liftgate windshield wiper relay
F
Seat adjustment relay
G
Circuit 15R relay (2)
Rear prefuse box
№
Fused component
A
170
Reserve
-
171
Front SAM control module with fuse and relay module
60
172
Rear SAM control unit with fuse and relay module
100
AdBlue fuse block
№
Fused component
A
19
AdBlue control unit
15
20
AdBlue control unit
20
21
AdBlue control unit
7.5
22
AdBlue control unit
5
Other relays
Oil cooler fan motor relay (engine 157)
- F12 – Stationary heater fuse (Hybrid)
- F37 – AdBlue fuse block (with engine 642.8 with BlueTEC)
- K27/7 – AdBlue supply relay (with engine 642.8 with BlueTEC)
- K60 – Coolant circulation pump relay (as of 01.06.2011 with engine 157, 274, 276, 278)
- K67 – AIRMATIC relay
- K109 – Vacuum pump relay (+) (Hybrid)
- K109/1 – Vacuum pump relay (-) (Hybrid)