Smart EQ Forfour 2018 Fuse Box Info
Passenger compartment fuse box location:
The fuse box is located in the glove box, behind the cover (left-hand drive vehicle).
The fuse box is located to the right of the steering wheel (right-hand drive vehicle).
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 1 | 5A | Starter motor |
| 2 | 5A | Power steering control unit |
| 3 | 5A | Multifunction lever |
| 4 | 5A | Airbag |
| 5 | - | - |
| 6 | 10A | Instrument cluster |
| 7 | 15A | Horn, alarm system |
| 8 | 10A | Power supply control unit |
| 9 | 10A | Power supply control unit |
| 10 | 20A | Central control unit |
| 11 | 15A | Central control unit |
| 12 | 10A | Central control unit |
| 13 | 15A | Central control unit |
| 14 | 30A | Power window switch (without reversing function) |
| 15 | 5A | ESP®, transmission control unit |
| 16 | 10A | Interior lighting |
| 17 | 3A | Immobiliser |
| 18 | 5A | Electrical exterior mirror |
| 19 | 10A | Brake lamps |
| 20 | 15A | Cruise control, radio, belt warning |
| 21 | 15A | Not for smart EQ fortwo, smart EQ fortwo cabrio, smart EQ forfour: central control unit, fuel pump, ignition system |
| 22 | 15A | Rear window wiper |
| 23 | 40A |
Starter motor |
| 24 | - | - |
| 25 | 30A | Power supply control unit |
| 26 | 20A | Radio |
| 27 | 5A | Daytime driving lamps |
| 28 | 15A | 12 V socket, cigarette lighter |
| 29 | 5A | Power supply control unit |
| 30 | 15A | Forward collision warning |
| 31 | - | - |
| 32 | 15A | Radio, central control unit |
| 33 | 25A | Tail lamps, front foglamps, hazard warning lamp button, locking button, headlamp range control, power windows, licence plate lighting, radio, control unit for heating or climate control system, cruise control, limiter, parking aid button, program selector button, tailgate release, Lane Keeping Assist camera, automatic start/stop system button |
| 34 | 25A | Power supply control unit |
| 35 | 25A | Headlamps, daytime driving lamps |
| 36 | - | - |
| 37 | - | - |
| 38 | - | - |
| 39 | - | - |
| 40 | - | - |
| 41 | 15A | smart EQ forfour only: seat heating in the rear |
| 42 | 25A | smart EQ fortwo, smart EQ fortwo cabrio, smart EQ forfour only: seat heating in the front |
| 43 | 5A | Mirror heating |
| 44 | 25A | Power windows (automatic reversing feature) |
| 45 | 5A |
Transmission control unit |
| 46 | 20A | Radio amplifier |
| 47 | - | - |
| 48 | 10A | smart EQ fortwo, smart EQ fortwo cabrio, smart EQ forfour only: vacuum pump |
| 49 | 10A | smart EQ fortwo, smart EQ fortwo cabrio, smart EQ forfour only: heating control unit, air-conditioning |
