System overview

Fig 1: Power Distribution Box (Engine Compartment) - Circuit Diagram

Courtesy of BMW OF NORTH AMERICA, INC.

Index	Explanation
1	Power distribution box, engine compartment
2	Ignition and injection relay
3	Volume control valve
4	Solenoid-controlled injection valve for Cylinder No. 1
5	Solenoid-controlled injection valve for Cylinder No. 2
6	Solenoid-controlled injection valve for Cylinder No. 3
7	Solenoid-controlled injection valve for Cylinder No. 4
8	Solenoid-controlled injection valve for Cylinder No. 5
9	Solenoid-controlled injection valve for Cylinder No. 6
10	Rail pressure sensor
11	Digital engine electronics (DME)

Notes for Service department