Originally Posted by jgalaxy
Thank you Mr 5 for this thread and your work here.
I've had my car for 13 months and have been experiencing a loud rattle for the last 8 months on cold start until it warms up and then only at low RPM (2200-2400). 15-20 minutes later it's gone.
BMW offered to update the cars software instead of fixing it which I refused.
Am I experiencing the same issue that is being discussed here? I would truly love to hear this nuissance finally disappear.
Based on my experience with the other day, one of the guys had the newer program, and he experienced the same as you.
After I did the fix, his front wastegate was still rattling but only at startup.
It sounds like you might have the newer program already.
Rev up the engine and let the engine drop. If you here the ticking while the engine is dropping in rpm then you have the old program.