I know this has been posted about before but there dosen't seem to be a final answer?
A few questions for anybody interested esp Roland at Gt Tuning.
1) is there now an official bmw fix
2) can optimising the bypass valve cure it
3) can larger injectors/richer mixture help, perhaps
JCW software
4) non-official ecu re-map ?
I have been on to the NAM website and read the yo-yoing chronicles which seemed to end with a BMW re-call campaign envolving an ecu update fixing the problem for most. There seems to be a software version 38 in this country but has this worked for everybody?
