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
REMOVING AND INSTALLING/REPLACING TANK LEAK DIAGNOSIS MODULE
(PETROL/GASOLINE CARS WITH US DMTL VERSION)
Necessary preliminary tasks:
Remove carbon canister.
Unlock and disconnect quick-connect coupling (1).
Unfasten hose clip (2) and remove hose.
Installation:
If necessary, replace hose clamp.