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System overview

The following graphic shows the system overview:

Fig 1: Valvetronic Servomotor - Circuit Diagram
G09841707Courtesy of BMW OF NORTH AMERICA, INC.
Index Explanation
1 Power distribution box, engine compartment
2 Valvetronic relay
3 Digital engine electronics
4 VANOS solenoid actuator, intake
5 VANOS solenoid actuator, exhaust
6 Camshaft sensor, intake camshaft
7 Camshaft sensor, exhaust camshaft
8 Valvetronic servomotor