2021 Mercedes-Benz Vito W447 Fuse Box Diagram
The 2021 Mercedes-Benz Vito (W447) has 5 fuse boxes. Choose the one you’re looking at.
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Engine compartment fuse box (PDC-E)
On the left of the engine compartment under a cover: open the two retaining clamps, unhook them and fold the cover up and off; wipe any moisture off the box first. Mercedes numbers the fuses F201-F241 and groups them in holders: S10-S8, S2 (7 to 1), S1 (7 to 1) and S7-S5 along the top, S14, S4 (1 to 7), S3 (1 to 7) and S13-S11 along the bottom, the single fuses F239, F240A and F241 between the relays. S11-S14 are MAXI blades. Relays as the manual letters them: J horn; K windscreen wipers, continuous wipe; L windscreen wipers on/off; M starter motor; N terminal 87 engine; R terminal 15; S terminal 87C; O, P, Q, T unassigned.
| No. | Function | Amp | Description |
|---|---|---|---|
| 201 | 5 AATO | Anti-theft alarm (ATA) siren (S5) | |
| 202 | 20 AATO | Auxiliary heater control unit (S6) | |
| 203 | 20 AATO | HLI LED headlamp control unit, headlamp functions (S7) | |
| 204 | 25 AATO | ESP valves (S1/1) | |
| 205 | 15 AATO | Horn (S1/2) | |
| 206 | 5 AATO | Engine control unit, OM654 and OM622 facelift engines (S1/3) | |
| 207 | 25 AATO | Shift module, NAG2 automatic transmission (S1/4) | |
| 208 | Unassigned (S1/5) | ||
| 209 | 5 AATO | Supply relay N, terminal 87 engine, OM622 facelift engine (S1/6) | |
| 210 | Unassigned (S1/7) | ||
| 211 | Unassigned (S2/1) | ||
| 212 | 15 AATO | Terminal 87 supply, circuit 4: engine control unit (M274 petrol) or NOx and soot particulate sensors (diesel) (S2/2) | |
| 213 | 15 AATO | Terminal 87 supply, circuit 2 (S2/3) | |
| 214 | 10 AATO | Terminal 87 supply, circuit 3 (10 A OM622/OM651/M274; 15 A OM622 facelift/OM654) (S2/4) | |
| 215 | 20 AATO | Terminal 87 supply, circuit 1 (20 A OM651; 25 A OM622 facelift/OM654) (S2/5) | |
| 216 | 5 AATO | Engine control unit, terminal 30G, OM622/OM651/M274 (S2/6) | |
| 217 | Unassigned (S2/7) | ||
| 218 | 5 AATO | ESP control unit (S8) | |
| 219 | Unassigned (S9) | ||
| 220 | Unassigned (S10) | ||
| 221 | 40 AMAXI | LED headlamp local control unit, LED high beam (S14) | |
| 222 | 5 AATO | Engine control unit, OM654 and OM622 facelift engines (S4/1) | |
| 223 | 7.5 AATO | CPC drive control (S4/2) | |
| 224 | 7.5 AATO | COLLISION PREVENTION ASSIST / DISTRONIC PLUS (S4/3) | |
| 225 | Unassigned (S4/4) | ||
| 226 | 5 AATO | Engine radiator fan, radiator shutters, OM622/OM651/M274 with NAG2 (S4/5) | |
| 227 | 10 AATO | Automatic transmission control unit, NAG2 (S4/6) | |
| 228 | 15 AATO | Additional (central) oil pump, NAG2 (S4/7) | |
| 229 | 5 AATO | Headlamp range adjustment, left, halogen headlamps (S3/1) | |
| 230 | 5 AATO | ESP (S3/2) | |
| 231 | 5 AATO | Headlamp range adjustment, right, halogen headlamps (S3/3) | |
| 232 | Unassigned (S3/4) | ||
| 233 | 25 AATO | Fuel filter heating, OM622 facelift engine (S3/5) | |
| 234 | 10 AATO | Terminal 87 C1, CPC drive control (S3/6) | |
| 235 | 10 AATO | Terminal 87 C2, CPC drive control (10 A; 15 A in the 2021-04 edition) (S3/7) | |
| 236 | 40 AMAXI | CBC 2 signal acquisition and actuation module (S13) | |
| 237 | 40 AMAXI | ESP pump (S12) | |
| 238 | Unassigned (S11) | ||
| 239 | 30 AATO | Front windscreen wipers | |
| 240 | 25 AATO | Starter motor, terminal 50 (F240A) | |
| 241 | Unassigned (F241) |
Co-driver's footwell fuse box, left half (PDC-P)
Under the floor covering of the co-driver's footwell: lift the floor mat and covering, press the retaining clamp and lift the cover until it locks, then pull it forwards off the box. The box is drawn in two halves; this is the left half as the Mercedes plate shows it: holders S17-S12 (S14 and S13 are MAXI blades), S2 (7 to 1) and the MAXI S11 along the top, the S3 column (1 to 7) at the left edge, the relay-carrier fuses F104-F108, F109/F110 and F97-F103 in the middle with F96 beside relay E, and S18-S25 (S23 MAXI) and S4 (1 to 7) along the bottom. Relays as the manual letters them: A terminal 15; B rear window wiper; C terminal 15 R2; D rear window heater; E terminal 15 R1; F terminal 30 G reset; G SCRCM exhaust gas aftertreatment.
| No. | Function | Amp | Description |
|---|---|---|---|
| 35 | 30 AMAXI | Rear window heating (S11) | |
| 36 | 7.5 AATO | Driver's seat control unit (S2/1) | |
| 37 | 30 AATO | Engine compartment fuse box (PDC-E) supply (S2/2) | |
| 38 | 7.5 AATO | Airbag control unit (S2/3) | |
| 39 | Unassigned (S2/4) | ||
| 40 | 15 AATO | SCRCM exhaust gas aftertreatment control unit, OM654 and OM622 facelift engines (S2/5) | |
| 41 | 30 AATO | SCRCM exhaust gas aftertreatment heater, OM654 and OM622 facelift engines (S2/6) | |
| 42 | 7.5 AATO | Co-driver's seat control unit (S2/7) | |
| 43 | 10 AATO | Rear Seat Entertainment System (S12) | |
| 44 | 40 AMAXI | Belt tensioner, front left seat (PRE-SAFE) (S13) | |
| 45 | 40 AMAXI | Belt tensioner, front right seat (PRE-SAFE) (S14) | |
| 46 | 10 AATO | SCRCM exhaust gas aftertreatment, generation 2, OM651 (S15) | |
| 47 | 20 AATO | SCRCM exhaust gas aftertreatment, generation 2, OM651 (S16) | |
| 48 | 15 AATO | SCRCM exhaust gas aftertreatment, generation 2, OM651 (S17) | |
| 49 | 5 AATO | Steering column module (S3/1) | |
| 50 | 7.5 AATO | Radio display head unit and its fan (S3/2) | |
| 51 | Unassigned (S3/3) | ||
| 52 | 5 AATO | Media Interface (S3/4) | |
| 53 | 7.5 AATO | Toll collection system, Japan (DSRC) (S3/5) | |
| 54 | 30 AATO | Climate control blower (S3/6) | |
| 55 | 20 AATO | Ignition lock, electronic steering lock (S3/7) | |
| 56 | 5 AATO | CPC drive control (10 A) or SCRCM exhaust gas aftertreatment generation 2, OM651 (5 A) (S18) | |
| 57 | Unassigned (S19) | ||
| 58 | 25 AATO | Trailer brake booster (USA only) (S20) | |
| 59 | 30 AATO | Co-driver's seat control unit (S21) | |
| 60 | 30 AATO | Driver's seat control unit (S22) | |
| 61 | 40 AMAXI | Amplifier, sound system (S23) | |
| 62 | 10 AATO | Roof turn signals (S24) | |
| 63 | 20 AATO | Fuel supply system control unit (S25) | |
| 64 | 30 AATO | Front left door control unit (S4/1) | |
| 65 | 30 AATO | Front right door control unit (S4/2) | |
| 66 | 20 AATO | Rear-end door window wiper, right (S4/3) | |
| 67 | 7.5 AATO | Electric parking brake (S4/4) | |
| 68 | 7.5 AATO | Airbag control unit (S4/5) | |
| 69 | 5 AATO | Automatic co-driver airbag shut-off (S4/6) | |
| 70 | Unassigned (S4/7) | ||
| 96 | 15 AATO | Rear window wiper, tailgate or left rear-end door | |
| 97 | 5 AMINI | PARKTRONIC, Active Parking Assist | |
| 98 | 5 AMINI | CBC signal acquisition and actuation module, control line | |
| 99 | 5 AMINI | Tyre pressure monitor | |
| 100 | Unassigned | ||
| 101 | 10 AMINI | Overhead control panel | |
| 102 | Unassigned | ||
| 103 | 5 AMINI | Basic wiring for taxi equipment, taximeter | |
| 104 | 5 AMINI | Pre-installation for the left-hand rear screen | |
| 105 | 5 AMINI | Pre-installation for the right-hand rear screen | |
| 106 | 5 AMINI | Camera for driver assistance systems | |
| 107 | Unassigned | ||
| 108 | 7.5 AMINI | Dirt flap for the rear view camera | |
| 109 | 15 AATO | Air suspension control unit | |
| 110 | 30 AATO | CBC 5 signal acquisition and actuation module |
Co-driver's footwell fuse box, right half (PDC-P)
The right half of the box under the co-driver's footwell covering (see the left half for access): holders S1 (7 to 1) and S10-S6 along the top, relays B, C and A with the relay-carrier fuses F89-F95, F88/F87 and F82-F86 between them, the two 200 A bolt-down links F22 (support battery) and F21 (PTC heater booster) at the right edge (not drawn as fuses), and S5 (1 to 7) and the MAXI blades S26-S29 along the bottom. Relays as the manual letters them: A terminal 15; B rear window wiper; C terminal 15 R2; D rear window heater; E terminal 15 R1; F terminal 30 G reset; G SCRCM exhaust gas aftertreatment.
| No. | Function | Amp | Description |
|---|---|---|---|
| 23 | 5 AATO | Digital rear-view mirror (S6; unassigned in the 2021-04 edition) | |
| 24 | 7.5 AATO | Trailer control unit (S7) | |
| 25 | 10 AATO | Support battery, charging connection (S8) | |
| 26 | 15 AATO | Trailer control unit (S9) | |
| 27 | 5 AATO | A-pillar fuse box (PDC-F) supply (S10) | |
| 28 | 7.5 AATO | Rear view camera (S1/1) | |
| 29 | 15 AATO | Radio head unit (25 A; 15 A when only the radio pre-installation socket is fitted) (S1/2) | |
| 30 | 10 AATO | Lane Keeping Assist, steering wheel (S1/3) | |
| 31 | 10 AATO | Heating, dual-zone or 3-zone automatic climate control (S1/4) | |
| 32 | 7.5 AATO | Centre console control panel with touchpad (S1/5) | |
| 33 | 5 AATO | Radio head unit (digital inside rear-view mirror in the 2021-04 edition) (S1/6) | |
| 34 | 15 AATO | Cigarette lighter (S1/7) | |
| 71 | Unassigned (S5/1) | ||
| 72 | 15 AATO | 12 V sockets, cargo compartment (S5/2) | |
| 73 | 30 AATO | Electric parking brake (S5/3) | |
| 74 | 30 AATO | Electric sliding door, right; EASY-PACK tailgate (S5/4) | |
| 75 | 15 AATO | Trailer module 1 (S5/5) | |
| 76 | 25 AATO | Trailer module 2 (S5/6) | |
| 77 | 25 AATO | Trailer module 3 (S5/7) | |
| 78 | 30 AMAXI | Panoramic roof (S26) | |
| 79 | 40 AMAXI | CBC 1 signal acquisition and actuation module (S27) | |
| 80 | 40 AMAXI | CBC 3 signal acquisition and actuation module (S28) | |
| 81 | 30 AMAXI | Rear compartment climate control blower (S29) | |
| 82 | 5 AMINI | Central gateway (Star 2.5) | |
| 83 | 7.5 AMINI | Electronic ignition lock | |
| 84 | 7.5 AMINI | Centre console control unit, control panel left of the steering wheel | |
| 85 | 5 AMINI | Radio remote control receiver, Hermes module | |
| 86 | 5 AMINI | RF antenna | |
| 87 | 10 AMINI | Diagnostics connection | |
| 88 | 10 AMINI | Instrument cluster | |
| 89 | 5 AMINI | Light switch, diagnostics connection | |
| 90 | 5 AMINI | Blind Spot Assist | |
| 91 | 5 AMINI | Exhaust gas aftertreatment, SCR control unit | |
| 92 | 5 AMINI | Fuel supply system control unit | |
| 93 | 7.5 AMINI | Radio pre-installation; toll collection system, Japan (DSRC) | |
| 94 | 15 AMINI | Pre-installation for mobile KD devices | |
| 95 | 5 AMINI | Glove box lamp |
A-pillar fuse box in the co-driver's footwell (PDC-F)
Behind the trim cover on the A-pillar in the co-driver's footwell: open the door, fold the cover out in the direction of the arrow and remove it. Mercedes numbers the fuses F300-F323: holders S1 (6 to 1) and S2 (6 to 1) and the single positions S3-S6 along the top, and the small MINI block the plate labels S10 in the middle (holders S8 (1-3) and S9 (1-4) in the facelift table; the block of 5-8 has only its right-hand column filled above and below position 5). Relays A (terminal 15), B and C (unassigned).
| No. | Function | Amp | Description |
|---|---|---|---|
| 300 | Unassigned (S3) | ||
| 301 | 5 AMINI | Tachograph (S10/1; holder S8/1 in the facelift table) | |
| 302 | Unassigned (S5) | ||
| 303 | 25 AATO | Parameterisable special module (PSM) (S2/1) | |
| 304 | 25 AATO | Parameterisable special module (PSM) (S2/2) | |
| 305 | 10 AATO | Rear seat heating and ventilation, row 1 left (S1/1) | |
| 306 | 10 AATO | Centre console refrigerator box (S2/3) | |
| 307 | Unassigned (S10/2; holder S8/2 in the facelift table) | ||
| 308 | 10 AATO | Rear seat heating and ventilation, row 1 right (S1/2) | |
| 309 | 10 AATO | Rear seat heating and ventilation, row 2 right (S1/4) | |
| 310 | 10 AATO | Rear seat heating and ventilation, row 2 left (S1/3) | |
| 311 | 30 AATO | Electric sliding door, left (S2/5) | |
| 312 | 30 AATO | Voltage converter (S2/4) | |
| 314 | 5 AMINI | Terminal 15, centre console (S10/5; holder S9/1 in the facelift table) | |
| 315 | 7.5 AMINI | Tachograph (S10/3; holder S8/3 in the facelift table) | |
| 316 | 5 AATO | Digital timer for the stationary air heater (S1/5) | |
| 317 | 5 AATO | Rear seat heating and ventilation control unit (S1/6) | |
| 318 | 5 AATO | Onboard Logic Unit (S2/6) | |
| 319 | 15 AMINI | Terminal 61 for body manufacturers (S10/6; holder S9/2 in the facelift table) | |
| 320 | 15 AMINI | Terminal 15 for body manufacturers (S10/7; holder S9/3 in the facelift table) | |
| 321 | 10 AATO | Centre console cup holder (10 A) or terminal 30 for body manufacturers (25 A) (S4) | |
| 322 | Unassigned (S10/8; holder S9/4 in the facelift table) | ||
| 323 | 5 AATO | Air heater with auxiliary battery (S6) |
Rear compartment fuse box (PDC-R)
Behind the tool holder in the right-hand side trim of the rear compartment: open the tailgate, take the vehicle tool kit out of its stowage compartment and unclip the tool holder from the trim. Three fuses for the 12 V sockets (numbered 1 to 3 on the plate, F110, F110/1 and F110/2 in the facelift table in the fuse table) and the relay K127 beside them.
| No. | Function | Amp | Description |
|---|---|---|---|
| 1 | 15 AATO | 12 V socket, second row of seats, left (F110) | |
| 2 | 15 AATO | 12 V socket, second row of seats, right (F110/1) | |
| 3 | 15 AATO | 12 V socket, first row of seats, left (F110/2) |