Mercedes-Benz Metris/Vito W447 Fuse Box & Relay (2014-2023)

Learn about the fuse box and relay locations for the Mercedes-Benz Metris/Vito W447 (2014-2023). Find detailed diagrams and component functions for easy troubleshooting.​

Mercedes-Benz Vito W447 is the third generation of the V-class model line, also known as Viano or Metris. Release years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023. During this time, the model has been updated. In this article, you will find a description of the fuses and relays of the Mercedes Vito 447 Viano, along with box diagrams and their locations. Select the fuse responsible for the cigarette lighter.

The way the boxes are made and what their contents are used for may be different from what is shown. This depends on the year your car is made and where it is delivered.

Passenger compartment

Fuse and relay box in passenger footwell under dash

To access the unit, lift the floor covering in the direction of arrow No. 1.

Next, press bracket 2 and move cover 3 in the direction of the arrow up until it locks. The box itself will look something like this.

Diagram

Assignment

Fuse holder S1
1	–	F28 – Reserved
2	25A	F29 – Head module (radio receiver)
	15A	Mounting socket for retrofitting a radio receiver
3	10A	F30 – Lane keeping system, steering wheel
4	10A	F31 – Heating system / air conditioning system “TEMPMATIK” / automated air conditioning system “TER-MOTRONIK”
5	7.5A	F32 – Control panel in the middle of the center console with touchpad
6	5A	F33 – Head module, radio receiver (Vito)
	15A	Head module, radio receiver (V-Class)
7	15A	F34 – Cigarette lighter
Fuse holder S2
1	7.5A	F36 – Driver’s seat control unit
2	30A	F37 – Fuse box in the engine compartment (PDC-E)
3	7.5A	F38 – Airbag control unit
4	5A	F39 – DAB/SDARS digital radio / TV tuner for Japan
5	–	F40 – Reserve
6	–	F41 – Reserved
7	7.5A	F42 – Front passenger seat control unit
Fuse holder S3
1	5A	F49 – Steering column tube module
2	7.5A	F50 – Display and head module (radio) fan
3	5A	F51 – Telephone socket
4	5A	F52 – Media Interface
5	7.5A	F54 – Japan Toll User Registration System (DSRC)
6	30A	F54 – Air conditioning fan
7	20A	F55 – Ignition switch / electronic steering lock
Fuse holder S4
1	30A	F64 – Front left door control unit
2	30A	F65 – Front right door control unit
3	20A	F66 – Rear window wiper, rear right door (Vito)
4	7.5A	F67 – Electric Parking Brake (EFS)
5	7.5A	F68 – Airbag control unit
6	5A	F69 – Front passenger airbag automatic deactivation system
7	–	F70 – Reserved
Fuse holder S5
1	–	F71 – Reserved
2	15A	F72 – 12V sockets in cargo area
3	30A	F73 – Electric parking brake (EFS)
4	30A	F74 – Electric sliding door, left
5	15A	F75 – Trailer module 1
6	25A	F76 – Trailer module 2
7	25A	F77 – Trailer module 3
Fuse holder S6-S29
S6	–	F23 – Reserved
S7	7.5A	F24 – Trailer control unit
S8	10A	F25 – Support battery, charging connection
S9	15A	F26 – Trailer control unit
S10	5A	F27 – A-pillar footwell fuse box, front passenger (PDC-F)
S11	30A	F35 – Heated rear window
S12	10A	F43 – Rear passenger entertainment system
S13	40A	F44 – Front seat belt pretensioner, left (PRE-SAFE®)
S14	40A	F45 – Right front seat belt pretensioner (PRE-SAFE®)
S15	10A	F46 – Exhaust aftertreatment, SCR 3
S16	20A	F47 – Exhaust aftertreatment, SCR 2
S17	15A	F48 – Exhaust aftertreatment, SCR 1
S18	15A	F56 – Exhaust gas aftertreatment – SCR relay
S19	–	F57 – Reserved
S20	–	F58 – Reserved
S21	30A	F59 – Front passenger seat control unit
S22	30A	F60 – Driver’s seat control unit
S23	40A	F61 – Amplifier, loudspeaker
S24	10A	F62 – Overhead direction indicators
S25	20A	F63 – Fuel system control unit
S26	30A	F78 – Panoramic roof
S27	40A	F79 – Signal acquisition and excitation module CBC 1
S28	40A	F80 – Signal acquisition and excitation module CBC 3
S29	30A	F81 – Rear air conditioning fan
Fuse and relay holder
–	200A	F21 – Additional heater (PTC)
–	2000A	F22 – Support battery
–	5A	F82 – Central Gateway “Star 2”
–	7.5A	F83 – Ignition switch
–	7.5A	F84 – Control panel on the center console / control panel on the left near the steering wheel
–	5A	F85 – Radio remote control, receiver / KOM module
–	5A	F86 – RF antenna (RF antenna)
–	10A	F87 – Diagnostic connector
–	10A	F88 – Instrument cluster
–	5A	F89 – Light switch
–	5A	F90 – Lane change warning
–	5A	F90 – Exhaust gas aftertreatment, SCR control unit
–	5A	F92 – Fuel system control unit
–	7.5A	F93 – Mounting socket for retrofitting a radio receiver
		Japan Toll User Registration System (DSRC)
–	–	F94 – Reserve
–	5A	F95 – Glove box lighting
–	15A	F96 – Cargo door window wiper / Rear window wiper, left rear door (Vito)
–	5A	F97 – PARKTRONIC/active parking assist
–	5A	F98 – Signal acquisition and excitation module, CBC control line
–	5A	F99 – Tire pressure monitoring system
–	5A	F100 – Amplifier, loudspeaker
–	10A	F101 – Roof control panel
–	–	F102 – Reserved
–	5A	F103 – Mounting socket for retrofitting taxi equipment, taximeter
–	5A	F104 – Rear passenger entertainment system, display, left
–	5A	F105 – Rear passenger entertainment system, display, right
–	5A	F106 – Driver assistance systems video camera
–	5A	F107 – Mounting socket for retrofitting a TV/traffic camera
–	7.5A	F108 – Reversing camera / 360° camera
–	–	F109 – Reserved
–	30A	F110 – Signal acquisition and excitation module CBC 5
Relay
A		Terminal 15 relay
B	Rear window wiper
C	Terminal 15 R2
D	Rear window heating system
E	Terminal 15 R1
F	Terminal 30G
G	Exhaust gas aftertreatment, SCR fuel pump

The fuse number 7 at 15A on section S1 is responsible for the operation of the front cigarette lighter.

Fuse and relay box in the front passenger footwell on the pillar

An example of block access is shown in the diagram.

Photo for example

Diagram

Designation

Fuse holder S1
1	10A	F305 – Rear seat heating / rear seat ventilation, 1st row left
2	10A	F308 – Rear seat heating / rear seat ventilation, 1st row right
3	10A	F310 – Rear seat heating / rear seat ventilation, 2nd row left
4	10A	F309 – Rear seat heating / rear seat ventilation, 2nd row right
5	–	Spare
6	5A	F317 – Control unit for rear seat heating / rear seat ventilation
Fuse holder S2
1	25A	F303 – Parameterizable special module (PSM)
2	25A	F304 – Parameterizable special module (PSM)
3	–	F306 – Reserved
4	–	F312 – Reserved
5	30A	F311 – Electric sliding door, right / tailgate EASY-PACK
6	–	F318 – Reserved
Fuse holder S3–S6
S3	25A	F300 – Marco Polo charger, charging connection
S4	25A	F321 – Terminal 30, bodybuilder
	5A	Only for bodybuilder Westfalia
S5	–	F302 – Reserved
S6	25A	F323 – Additional air heating
Fuse holder S10
1	5A	F301 – Tachograph
2	–	F307 Reserved
3	7.5A	F315 – Tachograph
4	–	F314 – Reserved
5	15A	F319 – Terminal 61 bodybuilder
	5A	Only for bodybuilder Westfalia
6	15A	F320 – Terminal 15, bodybuilder
	5A	Only for bodybuilder Westfalia
7	5A	F322 – Additional air heating timer
Relay
A		Terminal 15 relay
B	–	Spare
C	–	Spare

Fuse box in the luggage compartment

The box itself is located at the rear of the car, behind the side protective cover.

Diagram

Appointment

1. F352 15A 12 V socket, 1st row, left
2. F350 15A 12 V socket, 2nd row, left
3. F351 15A 12 V socket, 2nd row of seats, right
4. Relay K127 12 V sockets in the rear of the vehicle

Power box of the main fuses

This unit is located on the side of the right seat. To access, remove the protective cover.

Photo

Diagram

Decoding

1		A16 – Reserved
2	–	A15 – Reserved
3		A1 Starter
4	150A	A8 – A-pillar footwell fuse box, front passenger (PDC-F)
5	150A	A15 – Additional battery
6	100A	A2 – Preheating control unit
7	350A	E2 – Generator
8	100A	A10 – Engine radiator fan
9	–	A9 – Reserved
10	150A	A7 – Fuse box in the engine compartment (PDC-E)
11	–	A14 – Reserved
12	–	A3 – Reserved
13	250A	A6 – Fuse box in passenger footwell (PDC-P)
14	40A	A13 – CBC signal acquisition and excitation module
15	–	A5 – Reserved
16	100A	A11 – Power steering
17	50A	A4 – Power sockets at the rear of the vehicle

Engine compartment

This fuse and relay box (1) is located on the right side of the engine compartment. An example of access in the image.

Diagram

Assignment

Fuse holder S1
1	25A	F204 – ESP valves
2	15A	F205 – Horn
3	5A	F206 – Engine control unit
4	25A	F207 – Automatic transmission control unit
5	–	F208 – Reserve
6	–	F209 – Reserve
7	–	F210 – Reserve
Fuse holder S2
1	–	F211 – Reserve
2	15A	F212 – Terminal 87 (4)
3	15A	F213 – Terminal 87 (2)
4	10A	F204 – Terminal 87 (3)
5	20A	F215 – Terminal 87 (1)
6	5A	F216 – Engine control unit
7	–	F217 – Reserve
Fuse holder S3
1	5A	F229 – Headlight range adjustment left
2	5A	F230 – ESP system
3	5A	F231 – Headlight range adjustment, right
4	–	F232 – Reserve
5	25A	F233 – Fuel filter heating system
6	–	F234 – Reserved
7	–	F235 – Reserved
Fuse holder S4
1	–	F222 – Reserve
2	–	F223 – Reserve
3	7.5A	F224 – COLLISION PREVENTION ASSIST / DISTRONIC PLUS
4	–	F225 – Reserve
5	5A	F226 – Engine radiator fan/radiator shutter
6	10A	F227 – Automatic transmission control unit
7	15A	F228 – Additional oil pump (ZOP)
Fuse holder S5-S14
S5	5A	F201 – Horn of the EDW (anti-theft alarm system)
S6	20A	F202 – Independent heating control unit
S7	20A	F203 – HLI LED headlight control unit (vehicle headlight functions)
S8	5A	F218 – ESP control unit
S9	–	F219 – Reserve
S10	–	F220 – Reserve
S11	–	F238 – Reserved
S12	40A	F237 – ESP pump
S13	40A	F236 – Signal acquisition and excitation module CBC 2
S14	30A	F221 – LED headlight control unit LCU (LED headlight)
Additional Fuse holder
–	30A	F239 – Front wipers
–	25A	F240 – Starter, terminal 50
–	–	F241 – Reserved
Relay
J		Sound signal (Horn)
K		Continuous wiper operation
L		Wiper on/off
M		Starter
N		Terminal 87
O		Spare
P		Spare
Q		Spare
R		Terminal 15
S		Spare
T		Spare

That’s all. If you have something to add, write in the comments.