Fuse box, front
| Number | A | Function |
| 1 | 25 | Starter |
| 2 | 20 | Windshield wipers, washer pump |
| 3 | 20 | Heating blower, seat heater |
| 4 | 30 | Electric windows, left and right |
| 5 | 7.5 | Light switch |
| 6 | 7.5 | Parking lights/tail lights, right |
| 7 | 7.5 | Parking lights/tail lights, left |
| 8 | 20 | Terminal 87/3 of the main relay (engine) |
| 9 | 10 | Terminal 87/2 of the main relay (motor) |
| 10 | 15 | Terminal 87/1 of the main relay (motor) |
| 11 | 7.5 | Instrument cluster, safety cluster, OBD, Horn (only with leather sports steering wheel with steering wheel rocker switch) |
| 12 | 15 | CD radio, interior lighting |
| 13 | 15 | Fog lamps |
| 14 | 25 | ESP valves |
| 15 | 15 | Charge air cooler, air conditioning compressor |
| 16 | 10 | Electric fuel pump |
| 17 | 15 | Rear window wiper |
| 18 | 7.5 | Airbag triggering device, ESP |
| 19 | 7.5 | Mirror adjustment |
| 20 | 15 | Radio, CD, instrument cluster, tachometer, OBD, backup lamp, CD changer |
| 21 | 15 | Power socket, cigarette lighter |
| 22 | 7.5 | Passing light, right |
| 23 | 7.5 | Dipped beam, left |
| 24 | 7.5 | High beam, right |
| 25 | 7.5 | Traffic light, left, combined light |
| 26 | 15 | Brake indicator light |
| 27 | 7.5 | Motor control unit |
| 28 | 30 | Rear engine heater/fan window |
| 29 | 30 | Soft top |
| 30 | 40 | Manual transmission |
| 31 | 30 | Horn, central locking, rear cover, remote unlocking |
| 36 | – | Backup fuse 15 |
| 37 | 15 | Backup fuse 15 (W450, sliding glass roof) |
| 38 | – | Backup fuse 15 |
| 39 | – | Backup fuse 15 |
| 40 | – | Backup fuse 30 |
| 41 | – | Backup fuse 30 |
| 42 | – | Backup fuse 30 |
| 43 | 25 | Backup fuse 30 |
| 44 | 25 | Backup fuse 30, seat heater |
Fuse box, rear
| Number | A | Function |
| 32 | 30 | Secondary air injection pump (emission control) |
| 33 | 50 | Ignition switch |
| 34 | 50 | ESP control unit |
| 35 | 30 | Power steering control unit |
Support frame with plug positions for relay
| Number | Function | |
| A | Wiper system relay | |
| B | Fog light relay | |
| C |
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| D | Controller of the right heated seat |