Mercedes-Benz Vito Fuse Box Diagram and Location (2003-2014)

The second-generation Mercedes-Benz Vito/V-Class/Valente/Viano (Model Code: W639), produced from 2003 to 2014, was a versatile multi-purpose vehicle (MPV) and van designed for passenger transport, cargo hauling, and executive travel. With its premium features, spacious interior, and strong diesel and petrol engine options, this model gained popularity in both commercial and private sectors.

In this article, you will find fuse box diagrams for Mercedes-Benz Vito, V-Class, Valente, and Viano models produced between 2003 and 2014, covering years 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, and 2014. These diagrams provide essential 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 Vito / Viano.
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 Vito, V-Class, Valente, or Viano’s electrical system remains functional and reliable for daily commuting, business operations, or luxury transport.

Keep your Mercedes-Benz Vito/Viano (2003–2014) running efficiently with this detailed fuse box, fuse panel, and relay guide!

The cigar lighter (power outlet) fuses in the Mercedes-Benz Vito/Viano are:
- Fuse №18: Cigarette Lighter (located in the Main Fuse Box)
- Fuse №28: Socket for Rear-Compartment Entertainment (located in Fuse Block F34)
- Fuse №21: 12-Volt Socket for Passenger Compartment – Left (located in Fuse Block F35)
- Fuse №22: 12-Volt Socket for Passenger Compartment – Right (located in Fuse Block F35)
- Fuse №40: 12-Volt Socket – Rear Right (located in Fuse Block F35)
- Fuse №5: 12-Volt Socket on the Co-Driver’s Seat Base (located in the Fuse Box under the Driver’s Seat)

What’s Included

Fuse Box Locations

Main Fuse Box

The fuse box is located in the engine compartment on the passenger’s side.

The location of the fuses in the engine compartment: Mercedes-Benz Vito / Viano (2004-2010)

1 – Main fuse holder
2 – Fuse box F4
3 – Fuse box F5
4 – Main fuse F1
5 – Fuse block F34
6 – Fuse block F35

Passenger Compartment Fuse Box

The fuse box is located under the driver’s side seat (under the passenger’s side seat for right-hand drive vehicles).

Fuse box under the driver's seat (location): Mercedes-Benz Vito / Viano (2004-2010)

Fuse Box Diagrams

Main Fuse Box

Under-hood fuse box diagram (main): Mercedes-Benz Vito / Viano (2004-2010)

Assignment of the fuses in the Main Fuse Box

No.	Consumer	Amp
1	Windscreen wipers	30
2	Horn	15
3	Brake lamp switch	5
4	Heating	7.5
5	Diagnostics socket, rotary light switch, instrument cluster	5
6	Engine components	5
7	Rear wiper	30
8	Terminal 87 (1)	10
9	Terminal 87 (2)	15
10	Terminal 87 (3)	10
11	Terminal 30 Z engine	7.5
12	Rear window heating	30
13	Ignition lock/instrument panel	7.5
14	Brake system	7.5
15	Headlamp range control	5
16	Starter motor	25
17	Fuel pump	15
18	Cigarette lighter/glove compartment lighting	15
19	Radio	5
20	M112 ignition coils	15
20	Diesel HFM	5
21	Automatic transmission gearshift	7.5
22	Tachograph	7.5
23	Airbag control unit	10
24	Japanese rear-view mirror	5
25	Trailer control unit	5
26	Cut-off relay	5
27	Terminal 15 body/ equipment manufacturer	5
28	Transmission control unit	10
29	Start-off assist system	5
30	Unassigned	–
31	ATA horn	10
32	Mobile phone/VICS socket	5
33	Airbag, automatic child seat recognition	10
34	Terminal 15 R body/ equipment manufacturer	5
35	Overhead control panel	7.5
36	Lumbar adjustment (seat)	10
37	Make-up mirror light	7.5
38	Rear-compartment entertainment	7.5
39	Unassigned	–
40	Engine fuse (diesel)	10
40	Engine fuse (petrol)	20
41	Engine fuse (diesel)	10
41	Engine fuse (petrol)	20
F1	Terminal 30 electricalsystem, alternator	225 A
F4	Air-conditioning fan (incooling unit)	60 A
F5	Secondary air pump	40 A

Fuse block F34

Under-hood fuse box diagram (F34): Mercedes-Benz Vito / Viano (2004-2010)

Assignment of the fuses in the Fuse block F34

№	Consumer	Amp
21	Light switch and upper section of control panel	5
22	Rear-compartment entertainment	7.5
23	Interior light	10
24	Overhead control panel and sliding/tilting sunroof	7.5/25
25	Rear-compartment sliding/tilting roof	25
26	Auxiliary heating, radio receiver	5
27	Front-compartment air conditioning	7.5
28	Socket for rear-compartment entertainment	15
29	Mobile phone/CD changer/microphone control module	7.5
30	Seat heating controls	30
31	Tachograph	5
32	Diagnostics gateway	5
33	Diagnostics socket	10
34	Audio gateway	15
35	Unassigned	–
36	Headlamp cleaning system	30
37	ATA battery horn	10
38	Steering column lock	20
39	Front-compartment blower	40
40	ABS control unit	25
41	ABS control unit	40
42	Radio/COMAND	15

Fuse block F35

Under-hood fuse box diagram (F35): Mercedes-Benz Vito / Viano (2004-2010)

Assignment of the fuses in the Fuse block F35

№	Consumer	Rating
21	12-volt socket for passenger compartment, left	15 A
22	12-volt socket for passenger compartment, right	15 A
23	Trailer power socket	20 A
24	Trailer recognition unit	25 A
25	Driver’s seat adjustment	30 A
26	Co-driver’s seat adjustment	30 A
27	Electric sliding door, left	30 A
28	Electric sliding door, right	30 A
29	Rear-compartment blower	30 A
30	Air suspension system	40 A
31	Parktronic	10 A
32	Tyre pressure monitor	5 A
33	Sound system	25 A
34	Mobile phone control unit/VICS, TV booster	5 A
35	Auxiliary heating control unit	20 A
36	Unassigned	–
37	Rear-compartment air-conditioning system	5 A
38	COMAND camera control	7.5 A
39	Conventional taximeter	5 A
40	12-volt socket, rear right	15 A
41	Roof indicator light control unit	10 A
42	Unassigned	–

Passenger Compartment Fuse Box

Fuse box under the driver's seat (diagram): Mercedes-Benz Vito / Viano (2004-2010)

Assignment of the fuses under the driver’s seat

№	Consumer	Amp
F6	SAM-SRB	80
1	Door control unit, left	25
2	Door control unit, right	25
3	PSM control unit	25
4	PSM control unit	25
5	12-volt socket on the co-driver’s seat base	15
6	WVC charge line for vehicle battery in MARCO POLO	25
7	Timer and lighting in FUN/MARCO POLO	7.5
8	Auxiliary heating in FUN/MARCO POLO	25
9	Pop-up roof in FUN/ MARCO POLO	25