Two problems related to ignition have been reported for the 2004 BMW 330. The most recently reported issues are listed below.
Car stalled several times at red lights. Rpm dropped with no warning. Also experience rough idling when at complete stop.
The car (2004 330i zhp) often shudders at start up with an erratic idle and continues to do so even when warm. There are no computer fault codes and no check engine light. It feels as if it is ready to stall at any given time with severe idle fluctuations of 100-200 rpm's during stops. Problem is widespread across dozens of zhp (performance package) owners as well as many 2003 and 2004 3 series car owners, particularly those with manual transmissions.
| Electrical System problems | |
| Wiring problems | |
| Ignition problems | |
| Software problems |