Hi guys i've got a 95 318ti with 130kmiles on it and it's give little bother so far!
When starting up, It doesn't matter if its hot or cold etc, it does it everytime it stalls straight away. Revs jump up to 1.5k or there abouts and drop suddenly to 0 and stalls.
If I keep the revs up and drop them slowly over say 20 seconds it'll stay there and I can drive off and it'll not do it again until the next turn of the key!