BMW X5: Quick reference

 Ignition System Diagnosis

The ignition system on modern BMW engines consist of one ignition coil per cylinder. This arrangement is known as RZV, or Direct Stationary Ignition. The ignition coil receives fused power usually from the DME main relay or IVM (N62). The ignition coil primary circuit is controlled (triggered) by

 Cylinder Head Cover

As stated before, the cylinder head cover used on all of the new NG6 engines is made from plastic. However, the design differs between the engines due to engine equipment. For example, the N54 engine does not use Valvetronic and therefore does not need the accommodation for the VVT motor. Also,