Seat Leon (2005) – fuse box diagram
Year of production: 2005
Fuses on the left side of the dashboard
| Number | Component | Ampers |
| 1 | Gasoline and diesel engine control | 10 |
| 2) | ABS / ESP control | 5 |
| 3) | Airbag control | 5 |
| 4 | Heating controls, pressure sensor, heated seats, ESP switch, reverse gear | 5 |
| 5 | Left and right headlight motor, dimmer, GDL control | 5 |
| 6 | Gate, automatic transmission lever | 5 |
| 7 | Windshield relay, heated rearview mirrors, VDA telephone | 5 |
| 8 | Trailer control | 5 |
| 9 | – | – |
| 10 | – | – |
| 11 | – | – |
| 12 | Door control | 10 |
| 13 | Diagnosis, light switch, brake | 10 |
| 14 | Automatic transmission | 5 |
| 15 | Wiring control | 7,5 |
| 16 | Heating/air and climate control | 10 |
| 17 | Rain sensor | 5 |
| 18 | Automatic transmission, parking assist control | 5 |
| 19 | – | – |
| 20 | ESP control | 5 |
| 21 | D2L engine (20 147 kW) | 10 |
| 22 | Heater | 40 |
| 23 | Door control | 30 |
| 24 | Lighter | 25 |
| 25 | Wiring control | 25 |
| 26 | 12 V power outlets. | 30 |
| 27 | FSI advance control, gasoline relay, EKP 1.6 | 15 |
| 28 | – | – |
| 29 | Flow indicator, motor | 10 |
| 30 | Pre-wired | 20 |
| 31 | Vacuum pump | 20 |
| 32 | Door control | 30 |
| 33 | Sunroof | 30 |
| 34 | Comfort control | 25 |
| 35 | Alarm sensor, horn | 5 |
| 36 | Headlight washer system | 20 |
| 37 | Seats | 30 |
| 38 | Engine | 10 |
| 39 | Automatic transmission | 20 |
| 40 | Heater | 40 |
| 41 | Tailgate, power | 15 |
| 42 | Wiring control | 15 |
| 43 | Trailer inspection | 15 |
| 44 | Trailer inspection | 20 |
| 45 | Trailer inspection | 15 |
| 46 | Heating nozzles, heating control, air, climate | 5 |
| 47 | Lambda probe | 10 |
| 48 | Lambda probe | 10 |
| 49 | Light switch | 7,5 |
Fuse system, engine compartment, left side
| Number | Component | Ampers |
| 1 | Cleaning | 30 |
| 2) | Steering column | 5 |
| 3) | Wiring control | 5 |
| 4 | ABS | 30 |
| 5 | AQ gearbox | 15 |
| 6 | Combi | 5 |
| 7 | – | – |
| 8 | Radio | 15 |
| 9 | Phone | 5 |
| 10 | FSI engine compartment main relay and diesel/injection module power supply | 5 |
| Main relay in engine compartment D2L (2.0 FSI 147 kW) | 10 | |
| 11 | – | – |
| 12 | Transition | 5 |
| 13 | Gasoline injection module power supply | 25 |
| Diesel injection module power supply | 30 | |
| 14 | Coil | 20 |
| 15 | T71 / 20 FSI engine | 5 |
| Pump relay | 10 | |
| 16 | ADS pump | 30 |
| 17 | Horn | 15 |
| 18 | – | – |
| 19 | Cleaning | 30 |
| 20 | – | – |
| 21 | Lambda probe | 15 |
| 22 | Brake pedal, speed sensor | 5 |
| 23 | Engine 1.6 liter, main relay (relay 100) | 5 |
| EG 71 diesel EGR | 15 | |
| 2.0 D2L High-pressure fuel pump | 10 | |
| 24 | ARF, shift valve | 10 |
| 25 | Proper lighting | 40 |
| 26 | Left lighting | 40 |
| 27 | Engine 1.6 SLP | 40 |
| Glow plug relay 1.9 TDI | 50 | |
| 28 | L15 | 40 |
| 29 | Electric windows (front and rear) | 50 |
| Electric windows (front) | 30 | |
| 30 | KLX | 40 |
Position in the engine compartment: side box
| Number | Component | Ampers |
| B1 | Alternator <140 W. | 150 |
| Alternator> 140 W. | 200 | |
| C1 | Power steering | 80 |
| D1 | PTC (supplementary electric heating by air) | 100 |
| E1 | Electric fan <500 W / Electric fan> 500 W. | 50 |
| 80 | ||
| F1 | Multi-terminal power supply „30”. Internal fuse box | 100 |
| G1 | Power supply for the trailer fuse in the internal fuse box | 50 |
| H1 | – | – |