Fuses W164 M-Class 2006-2011 Diagram, Box Location ML320 ML350 ML500 ML550

Where are the fuses located on my Mercedes-Benz M-Class 2006-2011 W164?

Fuse locations on Mercedes-Benz M-Class W164 2006-2011.

The main fuse box and relay box are located in the engine compartment.
Rear, passenger side in the trunk.
Inside the cabin. The passenger side of the dash.
Prefuse box in the engine compartment. Near the hood hinge, passenger side.
Prefuse box by the battery.
The fuse box for AdBlue is located on the rear left, above the rear shock.

Fuse Guide Applications

Model:	ML 320 CDI ML 320 BLUETEC ML 350 ML 500 ML 550 ML 63 AMG M-Class
Years:	2006 2007 2008 2009 2010 2011
Chassis:	164
Make:	Mercedes-Benz

Fuse Box – Passenger side of the dash

Several fuses are located on the passenger side of the dash in the cabin. Remove the plastic cover using Trim & Panel removal tools to avoid damage.

Fuse	Purpose, Designation	Ampere
10	A/C Air Conditioner, Fan / Blower Control	10
11	Instrument Cluster	5
12	Air Conditioner Control Unit	15
13	Steering Column, Upper control panel	5
14	Ignition, Electronic Control Unit, EIS N73	7.5
15	Compass, Media Interface	5
16-18	Not Used

Fuse box in the back cargo compartment, trunk.

A second fuse box is located in the cargo compartment on the passenger side. You must remove the cover by twisting the two locking tabs to access these fuses. Here you will find relays and fuses 20 through 72.

Fuse	Purpose	Ampere
20	Radio Antenna filter	5
21	Aux, RCP	5
22	Parktronic, Radio Remote Control	5
23	DVD Player, Bluetooth	10
24	Emergency tensioning retractor	40
25	COMAND, DVD changer, Radio, Stereo	15
26	Door control, Right front door.	25
27	Seat adjustment and memory, Passenger front.	30
28	Seat adjustment and memory, Driver	30
29	Emergency tensioning retractor left front.	40
30	Fuel pump, Folding rear seat,	40
31	Seat ventilation, Heated steering wheel	10
32	AIRmatic Air Suspension N51, if equipped with the adaptive dampening system.	15
33	Keyless Go Entry	25
34	Door control, Driver’s door	25
35	Sound system, Amplifier and subwoofer	25
36	Tele Aid, Emergency Calling	10
37	Backup Camera 12-volt power	5
38	Battery module, Digital TV tuner	10
39	Radio, Navigation, or Tire pressure monitor	7.5
40	Rear liftgate, rear door automatic closing	30
41	Overhead Control Panel	25
42	Overhead control panel	25
43	Fuel Pump	20
44	Power outlet, socket, 115v socket, cigarette lighter	20
45	Power outlet in the back by the second row	20
46	Cigarette Lighter Outlet	15
47	Door sill molding	10
48	Differential lock engages the unit, AdBlue relay	5
49	Heated rear window	30
50	Rear wiper	15
51	Charcoal canister shutoff valve	5
52	Emergency Tensioning Retractor	5
53	AIRmatic Air Suspension, Fuel Pump	5
54	Front SAM Control Unit N10	5
55	Instrument cluster, Light Switch	7.5
56	AdBlue, Fuel Pump	5
57	Fuel Pump	20
58	Central gateway	7.5
59	Head restraint	7.5
60	Glove light, Engine Fuse and relays, Rear SAM Control Unit, Tele AID	5
61	SRS Airbag Restrain System	7.5
62	Passenger seat adjustment, front	30
63	Seat adjustment Front	30
64	Not used
65	Not used
66	Multicontour seat motor	30
67	Back A/C blower	25
68	Seat Heat, Seat Ventilation if equipped.	28
69	Differential lock, rear axle	30
70	Trailer Hitch Connection Socket	20
71	Electrical Brakes for trailer	20
72	Trailer hitch	15

The relays are located in the back.

Relay	Purpose, Function
K	Power for electric seat adjustment
L	Trailer hitch connection
M	Back window relay, heating.
N	Circuit 15
O	Fuel Pump
P	Back Wiper
R	Circuit 15R
S	Power Supply
T	Power for the center and rear outlet
U	Trailer
V	Spare

Engine Compartment Fuses W164

You will also find a fuse box in the engine bay, behind the headlight on the passenger side. To access the fuses, pull the two locking tabs forward. Once the two tabs are unlocked, lift the cover.

Engine bay fuses

Fuse	Purpose, Designation, Function	Ampere
100	Windshield Wiper Motor	30
101	Purge Control Valve, CDI Control	15
102	Transmission oil cooler pump, Engine coolant pump	15
103	Engine Control Unit ME	20
104	Terminal	15
105	Engine Controls ME	15
106	not used	–
107	Air pump	40
108	AIRmatic Air Suspension	40
109	Electronic Stability Program ESP	25
110	Antitheft Alarm	10
111	Direct Select the Intelligent module	30
112	Lamps Headlamp Left and Right	7.5
113	Horn	15
114	Front SAM Control Unit	5
115	ESP	5
116
117	Distronic Unit	7.5
118	Engine Electronics ME Control Unit	5
119	CDI	5
120	Engine Control	10
121	Heater	20
122	Engine Starter	25
123	Fuel Filter Sensor	20
124	Power Steering, A/C Compressor	7.5
125	Electronics	7.5

Relays in the engine compartment

Relay	Purpose, Function, Designation
A	Wipers
B	Wiper ON/OFF
C	Coolant pump
D	Engine
E	Air pump
F	Horn
G	AIRMatic Compressor
H	Circuit 15
I	Starter

Resources and useful links.

If you are missing the fuse chart and want a copy of the original fuse list with the car, look at this posting.

M-Class 2006-2011 Fuse Chart

What fuse type do I need to replace a blown fuse?

Your Mercedes-Benz uses Automotive Blade Fuse Type. A box of 100 fuses that include all the different ampere ratings you need costs less than $20 on Amazon.

When replacing blown fuses, use the same ampere rating fuse. The fuse rating is written on the fuse. You can verify that you are using the correct fuse by ensuring the fuse colors match the blown fuse and the new fuse. This indicates the same ampere rating.

Make sure to close the fuse box covers properly. It is important to do so to avoid moisture from entering the fuse box. Moisture can cause rust and electrical problems.

Why do I need to know where the fuse box of my vehicle is?

Electrical troubleshooting: When a vehicle has an electrical problem, such as a malfunctioning radio or a non-functioning turn signal, the fuse box is the first place to check. By knowing the location of the fuse box, the driver or technician can quickly check the fuses related to the malfunctioning electrical component.
Preventing damage: Fuses protect the electrical components of a vehicle from damage caused by power surges or overloads. By knowing the location of the fuse box, the driver can quickly replace a blown fuse and prevent further damage to the vehicle’s electrical system.
Safety: In some cases, a blown fuse can cause a safety hazard. For example, if the fuse for the brake lights is blown, other drivers may not be able to see when the vehicle is stopping. Knowing the location of the fuse box and the function of each fuse can help prevent accidents and ensure the safety of the vehicle’s occupants and other drivers on the road.
Maintenance: To maintain a vehicle’s electrical system, checking the fuses and replacing any blown ones regularly is important. Knowing the location of the fuse box and how to access it can make this process quicker and easier.

Overall, knowing the location and function of the fuse box is important for maintaining a vehicle’s electrical system and ensuring the safety of its occupants and others on the road.

What is the Best Scanner for Diagnosing Tripped Fuses and Broken Relays on a Mercedes-Benz?

The YOUCANIC full-system diagnostic scanner is a smart tool that helps uncover the mysteries of a car’s electronic systems. It’s a go-to for tackling tricky electrical problems, perfect for car experts and enthusiasts. If you’re dealing with a tripped fuse, this scanner quickly spots where things went wrong and helps you get things back on track.

Overall, the YOUCANIC full system diagnostic scanner is invaluable for any Mercedes-Benz owner or technician looking to troubleshoot problems quickly and accurately. With its user-friendly interface and powerful diagnostic capabilities, you can save time, money, and frustration by diagnosing and resolving issues with your Mercedes-Benz quickly and efficiently.