BMW 3: For Your Own Safety

 Removing the flat high-voltage connector

Bridge for high-voltage interlock loop Before the high-voltage connector can be disconnected, the bridge for the high-voltage interlock loop must first be removed. The bridge closes the circuit of the high-voltage interlock loop in a connected state. The SME and EME control units continuous

 Valve gear

VANOS VANOS unit B46 engine and B46TU/B48TU engines VANOS B46 engine VANOS B46TU and B48TU engine Following the changeover from a two-part chain drive to a single-part chain drive, the camshaft sprockets on the VANOS now have 46 teeth instead of the previous 36 teeth. To compensate for the ad