Valvetronic

Valvetronic: The N62 Valvetronic control system simultaneously varies the valve opening time and the valve opening lift according to engine speed and load. The electrical structure of the fully variable valve lift adjustment consists of the following individual components:







- Valvetronic Control Module
- ECM
- ECM Main Relay (in the IVM)
- Valvetronic Relay (in the IVM)
- Two eccentric shaft adjustment motors
- Two eccentric shaft position sensors
- Two magnetic wheels on the eccentric shafts

The Valvetronic control module adjusts the valve lift based on a request from the ECM. The Valvetronic control module (located in the E Box) adjusts the eccentric shaft motors by two internal power output stages.







Faults in the Valvetronic system are detected by the Valvetronic control module and are transmitted via the LoCAN to the ECM where they are stored for diagnostics.