Engine stalling

[Ayata]

I have a problem with my 2003 325xi. If anybody have any ideas I would appreciate. The engine is unpredictably stalling when the clutch is slowly engaged at idle rpm in 1st and 2nd gears. It takes a lot of effort to prevent stalling when getting the car move from a stopped position, such as engaging clutch very slowly, giving more gas - which causes the cltuch almost slip if you give too much. This is an intermittent problem and when it comes it stays on weeks at a time, and unpredictably disappears at other times. When in the "stalling" state, it seems that the car also has a drop in torque, but not hp at high rpms. During the past 3 months it has been stalling most of the time. Dealer looked at it and changed the VANOS, after which for 3 weeks the car was running beautifully. Then it gradually deteriorated, now its pretty bad. I have driven stick shift cars for all my life, since age 12, and never had such a hard time handling the clutch and gas when idle or at low speeds. Any ideas?

[buymeabmwm3]

Maybe problem with the idle bypass valve? What does the car do when idling in neutral? Car is new so its probably not clutch wear or fluids of any kind.

[Ayata]

When idling at neutral, engine is quiet with no rpm fluctuation. It is interesting that this problem completely disappeared for a significant amount of time when the dealer replaced the VANOS. I appreciate the reply.