System overview
The following graphic shows a system overview of the ignition in engine N55:
| Index | Explanation |
|---|---|
| 1 | Power distribution box, engine compartment |
| 2 | Ignition and injection relay |
| 3 | Digital engine electronics (DME) |
| 4 | Spark plug, cylinder 1 |
| 5 | Ignition coil, cylinder 1 |
| 6 | Spark plug, cylinder 2 |
| 7 | Ignition coil, cylinder 2 |
| 8 | Spark plug, cylinder 3 |
| 9 | Ignition coil, cylinder 3 |
| 10 | Spark plug, cylinder 4 |
| 11 | Ignition coil, cylinder 4 |
| 12 | Spark plug, cylinder 5 |
| 13 | Ignition coil, cylinder 5 |
| 14 | Spark plug, cylinder 6 |
| 15 | Ignition coil, cylinder 6 |