What is your question?
·
·
What is your question?
possible misfire 124000 miles
What makes this problem better or worse?
drives great on freeway
How long has your 2010 BMW 335i had this problem?
often
1 Reply
Hello, there are various possibilities for the cause of your engine performance issue. Hands on diagnostic testing utilizing a high end diagnostic tool compatible with BMW vehicles which has the capability of not only retrieving diagnostic trouble codes but the ability to monitor component operation is needed. You could have a fuel, ignition, air intake, base engine or emission component concern, or any combination of all those areas.