Mercedes-Benz ML-Class (W164) (2005-2011) Fuse Diagram

Fuse box diagram (fuse layout), location, and assignment of fuses and relays Mercedes-Benz ML-Class (W164) (ML280, ML300, ML320, ML350, ML420, ML500, ML63 AMG & ML450 Hybrid) (2005, 2006, 2007, 2008, 2009, 2010, 2011).

Mercedes-Benz ML-Class (W164) (2005-2011)

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.

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.

Notice

  • Before changing a fuse, secure the vehicle against rolling away and switch off all electrical consumers.
  • Always disconnect the battery before servicing high current fuses.
  • Always replace faulty fuses with the specified new fuses having the correct amperage. If you manipulate or bridge a faulty fuse or if you replace it with a fuse with a higher amperage, the electric cables could be overloaded. This could result in a fire. There is a risk of an accident and injury.
  • Only use fuses that have been approved for Mercedes-Benz vehicles and which have the correct fuse rating for the system concerned. Otherwise, components or systems could be damaged.

Passenger Compartment Fuse Box

The cockpit fuse box is located in the cockpit on the passenger-side.

Passenger Compartment Fuse Box Location

Passenger Compartment Fuse Box Diagram

DescriptionA
10Booster blower electronic blower controller10
11Instrument cluster5
12AAC [KLA] control and operating unit15
Comfort AAC [KLA] control and operating unit
13Steering column module Upper control panel control unit5
14EIS [EZS] control unit7.5
15Electronic compass5
Media interface control unit
16Spare-
17Spare-
18Spare-

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Battery compartment prefuse box

The battery compartment prefuse box is located next to the power supply battery below the front passenger seat.

Battery compartment prefuse box

DescriptionA
78up to 30.6.09: PTC heater booster100
up to 2008; as of 1.7.09: PTC heater booster150
79Rear SAM control unit60
80Rear SAM control unit60
81Valid for engine 642.820: AdBlue® relay supply40
Valid as of 1.7.09 without engine 642.820: Engine compartment fuse and relay box150
Valid for model 164.195: Vacuum pump relay (+)
Up to 2008: -
82Load compartment fuse and relay box100
83Weight Sensing System (WSS) control unit5
84Restraint systems control unit10
85As of 2009: DC/AC converter control unit (115 V socket)25
Up to 2008: Intelligent servo module for DIRECT SELECT30
86Cockpit fuse box30
87Transfer case control unit30
Valid for model 164.195:Fuse and relay box 2, engine compartment15
88Front SAM control unit70
89Front SAM control unit70
90Front SAM control unit70
91As of 2009: AC air recirculation unit40
Up to 2008: Blower regulator

Engine Compartment Fuse Box

Engine Compartment Fuse Box Location

  1. With a dry cloth, remove any moisture from the fuse box cover (1).
  2. Pull clamps (2) in the direction of the arrow.
  3. Lift fuse box cover (1) up.

Engine Compartment Fuse Box Diagram

DescriptionA
100Wiper motor30
101AAC with integrated control additional fan motor15
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
102Valid for engine 642.820 up to 31.7.10: Recirculation pump for transmission oil cooler15
Valid for engine 156: Engine coolant circulation pump
Valid for model 164.195:10
    Recirculation pump for transmission oil cooler
    Low temperature coolant pump
103Circuit 87 M1e connector sleeve25
CDI control unit
Up to 2008; Valid for engines 113, 272, 273: ME-SFI [ME] control unit
103Valid for model 164.195: ME-SFI [ME] control unit20
Valid for engine 272, 273:ME-SFI [ME] control unit
104Valid for engine 156, 272, 273: Terminal 87M2e connector sleeve15
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
105Valid for engine 156, 272, 273:15
   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
106Spare-
107Valid for engine 156, 272 and 273: Electric air pump40
Valid for model 164.195: Engine compartment/engine connector
108AIRMATIC compressor unit40
109ESP control unit25
Valid for model 164.195: Regenerative braking system control unit
110Alarm signal siren10
111Intelligent servo module for DIRECT SELECT30
112Left front lamp unit 7.5
Right front lamp unit
113Left fanfare horn15
Right fanfare horn
114Up to 2008: -5
As of 2009: Front SAM control unit
Valid for engine 629: CDI control unit
115ESP control unit5
Valid for model 164.195: Regenerative braking system control unit
116Electric controller unit (VGS)7.5
Valid for model 164.195: Hybrid vehicle fully integrated transmission control controller unit
117DTR controller unit7.5
118Valid for engine 156, 272, 273: ME-SFI [ME] control unit5
Valid for engine 629, 642: CDI control unit
119Valid for engine 642.820: CDI control unit5
120Valid for engine 156, 272, 273:10
   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
121STH heater unit20
Valid for model 164.195: Fuse and relay box 2, engine compartment
122Valid for engine 156, 272, 273, 629, 642: Starter25
Valid for engine 113, 272, 273: ME-SFI [ME] control unit
123Valid for engine 642: Fuel filter condensation sensor with heating element20
Valid for engine 629, 642 as of 1.9.08: Fuel filter condensation sensor with heating element
124Valid for model 164.120/122/822/825 as of 1.6.09, Model 164.121/124/125/824: Electrohydraulic power steering7.5
Valid for model 164.195:
   Electrohydraulic power steering
   Electric refrigerant compressor control unit
125Valid for model 164.195: Power electronics control unit7.5
Relay
AWiper level relay 1/2
BWiper ON / OFF
CValid for engine 642: Additional circulation pump for transmission oil cooling
Valid for engine 156: Engine coolant circulation pump
DTerminal 87 engine
ESecondary air injection pump
FFanfare horn
GAir suspension compressor
HCircuit 15
IStarter

Front prefuse box

Front prefuse box

DescriptionA
4Spare-
5Valid for model 164.195 (ML 450 Hybrid): Regenerative braking system control unit40
6ESP control unit 40
Valid for model 164.195 (ML 450 Hybrid): Electrohydraulic power steering80
7AAC with integrated control additional fan motor100
8up to 2008: Engine compartment fuse and relay box150
as of 2009: Engine compartment fuse and relay box100

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Luggage Compartment Fuse Box

The load compartment fuse and relay box are installed in the load compartment on the right of the wheelhouse.

Luggage Compartment Fuse Box Location

  1. Open the cargo compartment.
  2. Insert a suitable object such as a coin into the slot of the lock (1).
  3. Turn-lock (1) by 90° in direction of the arrow.
  4. Remove cover (2).

Luggage Compartment Fuse Box Diagram

DescriptionA
20Up to 2008: Roof antenna module5
As of 2009: Interference suppression filter for radio antenna
As of 2009: Microphone array control unit (Japanese version)
21RCP [HBF] control unit5
22PTS control unit5
STH radio remote control receiver
23DVD player10
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)
24Right front reversible emergency tensioning retractor40
25COMAND operating, display and control unit15
26Right front door control unit25
27Passenger-side front seat adjustment control unit with memory30
Front passenger seat adjustment comfort relay
28Driver-side front seat adjustment control unit, with memory30
Driver seat adjustment comfort relay
29Left front reversible emergency tensioning retractor40
30As of 2009: Folding rear bench seat control unit40
Valid for engine 156:
    Left fuel pump control unit
    Right fuel pump control unit  
Valid for model 164.195 (ML 450 Hybrid): Fuel pump control unit circuit 30 connector sleeve
31HS [SIH], seat ventilation and steering wheel heater control unit10
32AIRmatic control unit15
33KEYLESS-GO control unit25
34Left front door control unit25
35Amplifier for sound system30
As of 2009: Subwoofer amplifier
36Emergency call system control unit10
37Backup camera power supply module (Japanese version)5
Backup camera control unit (Japanese version)
38Digital TV tuner10
Up to 2008: Audio gateway control unit (Japanese version)
As of 2009: TV combination tuner (analog/digital) (Japanese version)
Valid for model 164.195 (ML 450 Hybrid): High voltage battery module
39Tire pressure monitor [RDK] control unit7.5
Up to 2008: SDAR control unit (USA version)
As of 2009: High definition tuner control unit
As of 2009: Digital Audio Broadcasting control unit
As of 2009: External navigation separation point (South Korea version)
40Up to 2008: Rear-end door closing control unit40
As of 2009: Rear-end door closing control unit30
41Overhead control panel control unit25
42Up to 2008: SR motor25
As of 2009: Overhead control panel control unit
43As of 2009; Valid for engine 272, 273: Fuel pump control unit20
Up to 31.05.2006: Tailgate wiper motor
As of 01.06.2006: Not assigned
44Up to 31.05.2006: Left 2nd seat row socket20
Up to 31.05.2006: Right 2nd seat row socket
As of 01.06.2006: Not assigned
As of 2009: Front interior socket (USA)
As of 2009: 115V socket
45Cargo area connector box20
Up to 2008: Front interior socket
As of 2009: Right 2nd seat row socket
46Front cigar lighter with ashtray illumination15
47Valid for model 164.195 (ML 450 Hybrid): High voltage battery coolant pump10
As of 2009: Left front illuminated door sill molding  
As of 2009: Right front illuminated door sill molding
48As of 2009: Rear axle differential lock control unit5
As of 2009; Valid for engine 642.820: AdBlue® supply relay
As of 1.7.09; Valid for model 164.195 or model 164.1 with engine 272 or model 164.8 with engine 642 or 273: Pyrotechnical separator
49Heated rear window30
50Up to 31.05.2006: Tailgate wiper motor10
As of 01.06.2006: Tailgate wiper motor15
51Activated charcoal canister shutoff valve5
52Up to 31.5.09: Left front reversible emergency tensioning retractor5
Up to 31.5.09: Right front reversible emergency tensioning retractor
As of 2009: Rear axle differential lock control unit
53AIRmatic control unit5
Valid for engine 156:
    Left fuel pump control unit
    Right fuel pump control unit
Valid for engine 272, 273: Fuel pump control unit
As of 2009: Transfer case control unit
54Headlamp range adjustment control unit5
Front SAM control unit
55Instrument cluster7.5
Rotary light switch
56Up to 31.05.2006: Data link connector5
Valid for engine 642.820: AdBlue® control unit
Valid for model 164.195: Fuel pump control unit
57Up to 2008: Fuel pump with fuel gauge sensor20
Valid without engine 156: Fuel pump
58Datalink connector7.5
Central gateway control unit
59As of 2009: Driver NECK-PRO head restraint solenoid7.5
As of 2009: Front passenger NECK-PRO head restraint solenoid
60Glove compartment illumination with switch5
Engine compartment fuse and relay box
Rear SAM control unit
Cell phone separation point
VICS+ETC voltage supply separation point (Japan version)
Multicontour seat pneumatic pump (as of 2009)
External navigation separation point (South Korea)
Electrical connection, Blind-Spot-Monitoring interior rear bumper (as of 1.8.10)
Emergency call system control unit (USA)
61Up to 2008:10
   Restraint systems control unit
   Right front seat contacting strip
As of 2009:7.5
   Restraint systems control unit
   Right front seat contacting strip
62Front passenger seat adjustment switch30
63Driver lumbar support regulator control unit30
Front passenger lumbar support regulator control unit
Driver seat adjustment switch
64Spare-
65Spare-
66As of 2009: Multicontour seat pneumatic pump30
67Rear air conditioning blower motor25
68Up to 2008: Left 2nd row seat heated cushion25
Up to 2008: Right 2nd row seat heated cushion
As of 2009: HS [SIH], seat ventilation and steering wheel heater control unit
69As of 2009: Rear axle differential lock control unit30
70Trailer hitch socket (13-pin) (as of 2009)20
Trailer hitch socket (7-pin)
Trailer hitch socket (13-pin) (up to 2008)15
71Electric brake control separation point30
72Trailer hitch socket (13-pin)15
Relay
KUp to 31.05.2006: Terminal 15R power outlet relay, with power-down
As of 01.06.2006: Circuit 15R seat adjustment
As of 2009: Relay, circuit 15R sockets (with K power-down) (power supply of electric seat adjustment)
LTerminal 30X
MHeated rear window relay
NCircuit 15 relay / terminal 87FW
OFuel pump relay
PRear wiper relay
RCircuit R relay115R
SReserve 1 (changer) (power supply for front socket)
TAs of 01.06.2006: Circuit 30, socket for 2nd seat row and load compartment
As of 2009: Reserve 2 (normally open contact) (power supply for center and rear sockets)
UAs of 01.06.2006: Circuit 30, trailer
VAs of 01.06.2006 -

AdBlue fuse block

AdBlue fuse block

DescriptionA
AAdBlue® control unit15
BAdBlue® control unit20
CAdBlue® control unit7.5
DSpare-