Wire color designation:
- BL - blue;
- BR - brown;
- GE - yellow;
- GN - green;
- GR - gray;
- RT - red;
- SW - black;
- VI - purple;
- WS - white;
- TR is colorless.
The first letters indicate the color of the wire itself, and the second letters indicate the color of the strip on the wire.
Cylinder firing order: 1-5-3-6-2-4.
![](https://www.bmwman.ru/img/ser5/0573.jpg)
Electrical diagram legend
![](https://www.bmwman.ru/img/ser5/0574.jpg)
![](https://www.bmwman.ru/img/ser5/0575.jpg)