Home > DIY > R-Class > Fuse R-Class 2006-2015 Fuse Box Location, Chart, Diagram W 251
R320 CDI R 320 BLUETEC R 350 R 500 R 63 AMG R 300 CDI fuse chart

Fuse R-Class 2006-2015 Fuse Box Location, Chart, Diagram W 251

Where is the fuse box on the Mercedes-Benz R-Class? Whether looking for the cigarette lighter, radio, COMAND, or Navigation fuse location, here you will find a list of all the fuses on your R-Class.

Location of the fuse box panels on Mercedes-Benz?

  • Engine Bay ( Behind the headlight on the passenger side)
  • Side of the dashboard. (Passenger side)
  • Under the passenger seat. Fuses are next to the battery.
  • In the rear, trunk on the passenger side.

Fuse Types Used on Mercedes-Benz

The ATO and MAXI fuses are installed on the fuse box panels. All these fuses can be purchased on Amazon; links are provided below. They are inexpensive when purchased online.

Fuse Guide Applications

Model: R320 CDI R 320 BLUETEC R 350 R 500 R 63 AMG R 300 CDI
Years: 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
Chassis: V251 W251
Make: Mercedes-Benz

Interior Fuse Box

R fuse chart location

The interior fuse box is located on the side of the dash. You will find the fuse box on the passenger’s side of the dash. A plastic cover can easily be removed. Use a Dash Trim Removal Tool to avoid damaging the dashboard.

Fuses Box Side of Dashboard, Passenger side.

Fuse Function, Purpose, Designation Ampere
10 Blower motor Speed Control 10
11 Instrument Cluster, Dashboard 5
12 Air Conditioner Controls 15
13 Steering column,
Upper control panel
14 Ignition EIS Control Unit 7.5
15 Media 5
16-18 Not used

Fuse and Relay Panel in Trunk, Rear

Fuse box diagram trunk location

Your Mercedes-Benz also has a fuse box in the trunk. To access these fuses, you must remove the cover in the luggage compartment.

Fuses in the rear of an R-Class

Fuse Purpose, Designation, Use, Function Amp
20 Radio Antenna Filter 5
21 Control Unit N72/2  Rear center console switch module 5
22 Parktronics, Stationary Heater 10
23 COMAND, DVD, Radio, Stereo 10
24 Emergency Tensioner Right Front 40
25 COMAND, DVD, CD Changer 15
26 Door control Unit – Right Front 25
27 Passenger seat adjustment 30
28 Driver seat adjustment 30
29 Emergency Tensioner Left Front 40
30 Fuel Pump 40
31 Steering Wheel Heater 10
32 AIRMatic, Air Suspension 15
33 Keyless Go Remote Entry 25
34 Door control unit, Left front 25
35 Sound System, Amplifier, Subwoofer 30
36 Tele Aid 10
37 Backup Camera 5
38 Digital TV Tuner 10
39 Radio Tuner, Digital Broadcast,
Tire Pressure Monitor
40 Easy Pack Liftgate, Rear hatch door closing 30
41 Overhead control panel 25
42 Panoramic glass sunroof 25
43 Fuel pump 20
44 Socket 12-volt front 20
45 Socket 12-volt rear 20
46 Cigarette lighter 15
47 Door sill molding lights/illumination 10
48 AdBlue Relay 5
49 Heated rear window 30
50 Liftgate wiper 15
51 activated charcoal filter valve 5
52 Emergency tensioner retractor left and right front 5
53 fuel pump 5
54 Front SAM,
Headlight range adjustment
55 Instrument cluster,
Light switch
56 AdBlue 5
57 Fuel Pump 20
58 Central Gate Way 7.5
59 Neck Pro Head Restraint 7.5
60 Glove light,
Rear Sam Control Unit N10/8
Tele Aid, Comand APS
61 Restrain Air Bag SRS, Child seat recognition 7.5
62 Front Passenger and Driver seat adjust switch 30
63 Lumbar Support 30
64-65 Not used
66 Pneumatic motor for multi-contour seats 30
67 Air Conditioner Blower -Rear 25
68 Heated seat and steering wheel 25
70 Trailer hitch 20
71 Electric brake control for trailer 30
72 Trailer hitch socket 15

Engine Compartment Fuse Box, Front SAM Control Unit

w251 r350 fuse box

There are fuses located in the engine bay. They are located right behind the headlight, on the passenger side.

R-Class Fuse Box in the engine bay.

Fuse Function Ampere
100 Wiper 30
101 Purge Control,
Oxygen Sensor Upstream
102 Transmission Oil Pump 10
103 Engine Control Unit 25
104 15
105 Connector, ME Control Unit 15
106 Not used
107 Air Pump 40
108 Air Compress for Air Suspension 40
109 Electronic Stability Control ESP 25
110 Antitheft Alarm System, Siren 10
111 Direct Select 30
112 Headlights 7.5
113 Horn 15
114 Front SAM N10 5
115 ESP 5
116 VGS 7.5
117 Distronic DTR 7.5
118 Engine 5
119 Control Unit 5
120 Engine 10
121 Heater 20
122 Engine Starter 25
123 Fuel Filter 20
124 Power Steering 7.5
125 Not used

R-Class Fuse Assignment, Location Back

K Relay, circuit 15R sockets
L trailer hitch
M heated rear window
O Circuit 15 relay
O Fuel Pump
P Rear Wiper
R Circuit 15R
S Front socket
T Rear socket
U Trailer Hitch
V Spare

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.

  • fuse amere ratingWhen 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 making sure the fuse colors for the blown fuse and the new fuse match. This indicates the same ampere rating.
  • Make sure to close the fuse box cover properly and lock the tabs. This is very important to avoid any moisture getting inside the fuse box. The fuse box panel has a seal to keep water and moisture out of the box.

What is the importance of knowing where the fuse box locations are?

  1. 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.
  2. 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.
  3. 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.
  4. Maintenance: To maintain a vehicle’s electrical system, it is important to check the fuses and replace any that are blown regularly. 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.

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