BMW 325i Engine Idle Rough

E90 325i. Sounds Like The Car Is Switching On And Off All The Time. When The Car Shuts Off It Loses Memory And Doesn’t Start Again.

I Get A Really Tough Idle And Some Knock (to The Point Of Stalling) When The Car Is Cold (but Still Rough At Operating Temperature). No...

Okay, A Friend Of Mine Has This Car. I Drove It Today To Help Him Diagnose It. It Idles Roughly And Stalls When It Is Cold. I Scanned It And...

In Colder Weather The Car Has A Very Rough Idle Until It Begins To Warm Up Somewhat, How Do I Troubleshoot This; Ie: What Steps Can I Follow...