The second-generation Mercedes-Benz ML (M-Class; W164), produced from 2005 to 2011, is a luxury mid-size SUV known for its blend of performance, off-road capability, and premium comfort. Offering advanced safety features, powerful engine options, and a refined interior, the W164 remains a popular choice for families, executives, and adventure seekers alike.
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Looking for the right fuse or relay?
Search common fuse types, fuse kits and relay options for your vehicle.
In this article, you will find fuse box diagrams for the Mercedes-Benz M-Class, covering models ML280, ML300, ML320, ML350, ML420, ML450, ML500, ML550, and ML63 AMG for the years 2005, 2006, 2007, 2008, 2009, 2010, and 2011. These diagrams provide crucial insights into the fuse layout, helping vehicle owners, mechanics, and technicians locate and understand the function of each fuse and relay.
What’s Included:
Fuse Box Diagrams – Clear and detailed visuals to help identify fuses, relays, and circuit breakers.
Fuse Panel Locations – Step-by-step guidance on where to find the fuse panels inside the Mercedes-Benz ML-Class.
Fuse Assignments – Comprehensive descriptions of each fuse and relay function for accurate diagnostics and troubleshooting.
Whether you’re searching for the fuse panel layout, replacing a blown fuse, or diagnosing an electrical issue, this guide is an essential resource. It ensures that your Mercedes-Benz ML-Class’s electrical system remains functional and reliable for daily driving, off-road adventures, and long-distance travel.
Keep your Mercedes-Benz ML-Class (2005–2011) in top condition with this detailed fuse box, fuse panel, and relay guide!
The cigar lighter/power outlet fuses (All are located in the Luggage Compartment Fuse Box) in the Mercedes-Benz M-Class are:
AAC with integrated control additional fan motor Valid for engine 156: Terminal 87 M3e connector sleeve Valid for engine 156, 272, 273: Purge control valve Valid for engines 272, 273: Circuit 87 M1e connector sleeve Suction-type fan control unit Valid for engine 629: CDI control unit Circuit 30 connector sleeve Suction fan control unit Valid for model 164.195: ME-SFI [ME] control unit Engine compartment/engine connector Valid for engine 642 except 642.820: CDI control unit O2 sensor upstream of CAT Suction fan control unit Valid for engine 642.820: O2 sensor upstream of CAT
15
102
Valid for engine 642.820 up to 31.7.10: Recirculation pump for transmission oil cooler Valid for engine 156: Engine coolant circulation pump
15
102
Valid for model 164.195: Recirculation pump for transmission oil cooler Low temperature coolant pump
10
103
Circuit 87 M1e connector sleeve CDI control unit Up to 2008; Valid for engines 113, 272, 273: ME-SFI [ME] control unit
25
103
Valid for model 164.195: ME-SFI [ME] control unit Valid for engine 272, 273:ME-SFI [ME] control unit
20
104
Valid for engine 156, 272, 273: Terminal 87M2e connector sleeve Valid for engine 629: Terminal 87 connector sleeve Valid for engine 642.820: Terminal 87 D2 connector sleeve Valid for engine 642 except 642.820: CDI control unit Valid for model 164.195: Interior and engine wiring harness connector Engine compartment fuse and relay box Valid for engine 113: ME control unit
15
105
Valid for engine 156, 272, 273: ME-SFI [ME] control unit Circuit 87 M1 i connector sleeve Valid for engine 629: CDI control unit Valid for engine 642.820: CDI control unit Fuel pump relay Valid for engine 642 except 642.820: CDI control unit Fuel pump relay (as of 2009) Starter (up to 2008) Valid for model 164.195: Interior and engine wiring harness connector Valid for engine 113: Circuit 15 connector sleeve, fused
15
106
Spare
–
107
Valid for engine 156, 272 and 273: Electric air pump Valid for model 164.195: Engine compartment/engine connector
40
108
AIRMATIC compressor unit
40
109
ESP control unit Valid for model 164.195: Regenerative braking system control unit
25
110
Alarm signal siren
10
111
Intelligent servo module for DIRECT SELECT
30
112
Left front lamp unit Right front lamp unit
7.5
113
Left fanfare horn Right fanfare horn
15
114
Up to 2008: – As of 2009: Front SAM control unit Valid for engine 629: CDI control unit
5
115
ESP control unit Valid for model 164.195: Regenerative braking system control unit
5
116
Electric controller unit (VGS) Valid for model 164.195: Hybrid vehicle fully integrated transmission control controller unit
7.5
117
DTR controller unit
7.5
118
Valid for engine 156, 272, 273: ME-SFI [ME] control unit Valid for engine 629, 642: CDI control unit
5
119
Valid for engine 642.820: CDI control unit
5
120
Valid for engine 156, 272, 273: ME-SFI [ME] control unit Engine circuit 87 relay Valid for engine 113: ME-SFI [ME] control unit Valid for engine 629: CDI control unit Valid for engine 629, 642: Engine circuit 87 relay
10
121
STH heater unit Valid for model 164.195: Fuse and relay box 2, engine compartment
20
122
Valid for engine 156, 272, 273, 629, 642: Starter Valid for engine 113, 272, 273: ME-SFI [ME] control unit
25
123
Valid for engine 642: Fuel filter condensation sensor with heating element Valid for engine 629, 642 as of 1.9.08: Fuel filter condensation sensor with heating element
20
124
Valid for model 164.120/122/822/825 as of 1.6.09, Model 164.121/124/125/824: Electrohydraulic power steering Valid for model 164.195: Electrohydraulic power steering Electric refrigerant compressor control unit
7.5
125
Valid for model 164.195: Power electronics control unit
7.5
Relay
A
Wiper level relay 1/2
B
Wiper ON / OFF
C
Valid for engine 642: Additional circulation pump for transmission oil cooling Valid for engine 156: Engine coolant circulation pump
D
Terminal 87 engine
E
Secondary air injection pump
F
Fanfare horn
G
Air suspension compressor
H
Circuit 15
I
Starter
Front pre-fuse box
Fuse box diagram
Fuse Data
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As of 2009: Interference suppression filter for radio antenna, Microphone array control unit (Japanese version) – 5A
21
RCP [HBF] control unit – 5A
22
PTS control unit
STH radio remote control receiver – 5A
23
DVD player
Rear audio control unit
Portable CTEL separation point (Japanese version)
E-net compensator, Bluetooth module, Universal Portable CTEL Interface (UPCI [UHI]) control unit (Japanese version) – 10A
More details…
24
Right front reversible emergency tensioning retractor – 40A
25
COMAND operating, display, and control unit – 15A
26
Right front door control unit – 25A
27
Passenger-side front seat adjustment control unit with memory
Front passenger seat adjustment comfort relay – 30A
28
Driver-side front seat adjustment control unit, with memory
Driver seat adjustment comfort relay – 30A
29
Left front reversible emergency tensioning retractor – 40A
30
As of 2009: Folding rear bench seat control unit, Left/Right fuel pump control unit, Fuel pump control unit circuit 30 connector sleeve (ML 450 Hybrid) – 40A
31
HS [SIH], seat ventilation and steering wheel heater control unit – 10A
32
AIRmatic control unit – 15A
33
KEYLESS-GO control unit – 25A
34
Left front door control unit – 25A
35
Amplifier for sound system
As of 2009: Subwoofer amplifier – 30A
36
Emergency call system control unit – 10A
37
Backup camera power supply module (Japanese version)
Backup camera control unit (Japanese version) – 5A
38
Digital TV tuner, Audio gateway control unit (Japanese version) (2008), TV combination tuner (analog/digital) (2009), High voltage battery module (ML 450 Hybrid) – 10A
39
Tire pressure monitor [RDK] control unit, Various tuners and navigation points – 7.5A
40
Rear-end door closing control unit (2008) – 40A
40
Rear-end door closing control unit (2009) – 30A
AdBlue fuse block
Fuse box diagram
Fuse Data
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