bmwsparkle 3 Report post Posted July 24, 2004 are M30s known for being rough as guts at idle? because mine sure is. Quote Share this post Link to post Share on other sites
Guest WAGON Report post Posted July 25, 2004 have you just put in a new battery? mine idled like sh*t for the first couple of days or do you have a pod filter? Quote Share this post Link to post Share on other sites
bmwsparkle 3 Report post Posted July 25, 2004 new battery ages ago, had K&N panel since i had the car. Quote Share this post Link to post Share on other sites
blobby 0 Report post Posted July 28, 2004 usually a bad idle control valve or cracked vacuum line. I had both one on each e30. I also have a rough idle on my 5 but it's neither of the above..... Quote Share this post Link to post Share on other sites
bmwsparkle 3 Report post Posted July 29, 2004 usually a bad idle control valve or cracked vacuum line. I had both one on each e30. I also have a rough idle on my 5 but it's neither of the above..... hmm donno, my IDC looks like its fairly new, maybe the last owner tried to fix it by doing that. Quote Share this post Link to post Share on other sites
