Mercedes-Benz E-Class (W212; 2010-2016) fuses and relays

 

In this article, we consider the fourth-generation Mercedes-Benz E-Class (W212), produced from 2009 to 2016. Here you will find fuse box diagrams of Mercedes-Benz E200, E220, E250, E300, E350, E400, E500, E63 2010, 2011, 2012, 2013, 2014, 2015 and 2016, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout) and relay.

Fuse Layout Mercedes-Benz E-Class 2010-2016


Cigar lighter (power outlet) fuses in the Mercedes-Benz E-Class are the fuses #71 (Front interior socket, Front cigarette lighter), #72 (Cargo area socket) in the Luggage Compartment Fuse Box, and fuse #9 (Glove compartment socket) in the Engine Compartment Fuse Box.


Luggage Compartment Fuse Box

Fuse box location

It is located on the right side of the luggage compartment, behind the cover.The location of the fuses in the trunk: Mercedes-Benz E-Class (W212; 2010-2016)

Fuse box diagram

Trunk fuse box diagram: Mercedes-Benz E-Class (2010-2016)

 

Assignment of the fuses and relay in the trunk

Fused component Amp
37 Driver seat NECK-PRO head restraint solenoid
Front passenger seat NECK-PRO head restraint solenoid
7.5
38 Valid for model 212.2: Tailgate wiper motor 15
39 up to 31.05.2010: Left rear door control unit
Valid for right-hand drive vehicles as of 01.06.2010: Left front door control unit
30
40 Spare
41 up to 31.05.2010: Right rear door control unit
Valid for left-hand drive vehicles as of 01.06.2010: Right front door control unit
30
42 Fuel pump relay
Valid for engine 156, 271, 272, 273, 274, 276, 278, 642, 651: Fuel system control unit
25
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
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
7.5
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
57 Left front illuminated door sill molding voltage converter
Right front illuminated door sill molding voltage converter
7.5
58 Trailer recognition control unit  25
59 Left front bumper DISTRONIC (DTR) sensor
Right front bumper DISTRONIC (DTR) sensor
7.5
60 Multicontour seat pneumatic pump  7.5
60 Dynamic multicontour seat pneumatic pump 30
61 Trunk lid control control unit
Tailgate control control unit
40
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
65 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
Rear axle electronic level control control unit
15
69 Rear bass speaker amplifier 25
70 Tire pressure monitor control unit 5
71 Vehicle interior socket, front
Front cigarette lighter with ashtray illumination
15
72 Cargo area socket 15
73 Diagnostic connector
Stationary heater radio remote control receiver
Valid with transmission 722.930/931: Transmission mode control unit
5
74 KEYLESS-GO control unit
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
15
75 Stationary heater unit
Valid as of 01.03.2013 (with Dynamic LED headlamps:
Left front lamp unit
Right front lamp unit
20
75 Valid for engine 156: Oil cooler fan motor relay 25
76 Rear cup holder
Rear center console socket
Rear USB electrical connection
15
77 Rear cup holder
Valid until 28.02.2013: Weight sensing system (WSS) control unit
Valid for China, South Korea vehicles: Navigation processor
7.5
78 Media interface control unit
Multimedia connection unit
7.5
79 Valid up to 31.05.2010: Radar sensors control unit
Valid as of 01.06.2010: Video and radar sensor system control unit
Valid as of 01.03.2013: Chassis gateway control unit
5
80 Parking system control unit 5
81 Cellular telephone system antenna amplifier / compensator
Mobile phone electrical connector
Navigation processor
5
82 Left front seat ventilation blower regulator Right front seat ventilation blower regulator 10
83 Circuit 15R connector sleeve
Emergency call system control unit
Valid until 31.05.2010: Navigation processor
Japan version: Electronic Toll Collection control unit
7.5
84 Reversing camera power supply module
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
5
85 Valid until 28.02.2015: TV tuner (analog/digital)
Valid until 28.02.2015 : Digital TV tuner
Valid as of 01.03.2015: Tuner unit
7.5
86 DVD player
Left rear display
Right rear display
7.5
87 Emergency call system control unit
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
7.5
88 Valid with transmission 722.9: Intelligent servo module for DIRECT SELECT 15
89 Trailer recognition control unit
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
30
90 Coolant circulation pump relay
Valid for engine 642.8 with BlueTEC: AdBlue® fuse block
40
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
Valid as of 01.03.2013: Rear switching module
Valid until 30.11.2011: DC/AC converter control unit
15
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)

Instrument Panel Fuse Box

The location of the fuses in the passenger compartment: Mercedes-Benz E-Class (W212; 2010-2016)

Engine Compartment Fuse Box

Fuse box location

The fuse box is located in the engine compartment oh the driver’s side, under the cover.The location of the fuses in the engine compartment: Mercedes-Benz E-Class (W212; 2010-2016)

Fuse box diagram

Under-hood fuse box diagram: Mercedes-Benz E-Class (2010-2016)

 

Assignment of the fuses and relay in the engine compartment

Fused component Amp
1 Valid for left-hand drive vehicle:
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
25
2 up to 31.05.2010: Left front door control unit
Valid for right-hand drive vehicles as of 01.06.2010: Left rear door control unit
30
3 up to 31.05.2010: Right front door control unit
Valid for left-hand drive vehicles as of 01.06.2010: Right rear door control unit
30
4 Valid with engine 157: Fuel system control unit
Valid for engine 642, 651 up to 31.05.2010: Fuel filter condensation sensor with heating element
20
4 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
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
7.5
6 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
10
7 Starter 20
8 Supplemental restraint system control unit 7.5
9 Glove compartment socket 15
10 Wiper motor
Wiper park position heater
30
11 Audio/COMAND display
Audio/COMAND control panel
Navigation module
Cradle for navigation module
COMAND fan motor
7.5
12 ACC control and operating unit
Upper control panel control unit
Valid for transmission 722, 724, 725: Automatic transmission transmission mode button
AIRMATIC: Suspension button group
7.5
13 Steering column tube module control unit
Multifunction camera
Stereo multifunction camera
7.5
14 Electronic Stability Program control unit
Premium Electronic Stability Program control unit
7.5
15 Supplemental restraint system control unit 7.5
16 Hybrid: Electrical refrigerant compressor
Valid with transmission 722.930/931: DIRECT SELECT INTERFACE
Valid for transmission 722 (except 722.930/931): Electronic selector lever module control unit
5
17 Overhead control panel control unit
Panoramic sliding roof control module
30
18 Exterior lights switch
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
7.5
19 Valid except transmission 722.9: Electronic ignition lock control unit, Electric steering lock control unit 20
20 Valid for left-hand drive vehicle: Electronic Stability Program control unit, Premium Electronic Stability Program control unit
Valid for left-hand drive vehicle, Hybrid: Regenerative braking system control unit
40
21 Front passenger seat occupied recognition and ACSR
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
7.5
22 Valid for fan motor with 650, 800 W: Fan motor for internal combustion engine and air conditioning with integrated control
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
15
23 Valid for diesel engine: Rear SAM control unit with fuse and relay module
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
20
24 Valid for engine 156, 157, 271, 272, 273, 274, 276, 278, 642, 651: Electrical connector for interior harness and engine wiring harness
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
15
25 Valid for engine 642, 651 with BlueTEC:
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
15
26 Radio
Radio with auto pilot system
COMAND controller unit
20
27 Valid for gasoline engine: ME-SFI control unit
Valid for diesel engine:
CDI control unit
Electronic ignition lock control unit
Valid for engine 271.958, 274.920: CNG control unit
7.5
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
Right fanfare horn
15
31B Left fanfare horn
Right fanfare horn
15
32 Valid for engine 272: Electric air pump 40
33 Valid for transmission 722.6: Electronic transmission control control unit
Valid for transmission 722.9, 724, 725: Fully integrated transmission control controller unit
10
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
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
7.5
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

Engine Compartment Additional Fuse Box (Hybrid)

Engine Compartment Additional Fuse Box (Hybrid): Mercedes-Benz E-Class (2010-2016)

Engine Compartment Additional Fuse Box Diagram (Hybrid): Mercedes-Benz E-Class (2010-2016)

Assignment of the fuses and relay in the Additional Fuse Box

Fused component Amp
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 Pre-Fuse Box

Front Pre-Fuse Box: Mercedes-Benz E-Class (2010-2016)

Without ECO start/stop

Front Pre-Fuse Box (Without ECO start/stop)

Fused component Amp
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
Valid for right-hand drive vehicles:
Electronic Stability Program control unit
Premium Electronic Stability Program control unit
50
PIN2 Valid for right-hand drive vehicles:
Electronic Stability Program control unit
Premium Electronic Stability Program control unit
50
PIN3 AIRmatic relay
Valid with transmission 725: Fully integrated transmission control unit
60
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

Front Pre-Fuse Box (With ECO start/stop)

Fused component Amp
MR8 Alternator
Stationary heater control unit
350
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
Valid for right-hand drive vehicles:
Electronic Stability Program control unit
Premium Electronic Stability Program control unit
50
PIN2 Valid for right-hand drive vehicles:
Electronic Stability Program control unit
Premium Electronic Stability Program control unit
50
PIN3 AIRmatic relay
Valid with transmission 725: Fully integrated transmission control unit
60

Hybrid

Front Pre-Fuse Box (Hybrid)

Fused component Amp
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
Valid for right-hand drive vehicles: Regenerative braking system control unit
50
PIN2 Valid for right-hand drive vehicles: Regenerative braking system control unit 50
PIN3 AIRmatic relay 60

Rear Pre-fuse Box (F33)

Fused component Amp
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 (F37)

Fused component Amp
19 AdBlue control unit 15
20 AdBlue control unit 20
21 AdBlue control unit 7.5
22 AdBlue control unit 5

Other relays

K25 – Oil cooler fan motor relay

K27/7 – AdBlue supply relay (with engine 642.8 with BlueTEC)
F12 – Stationary heater fuse (Hybrid)

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)

F96 – Additional battery circuit 30 fuse (7,5 A)(with ECO start/stop )
K114 – ECO start/stop function additional battery relay


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