New to the 335i, bought an 07 with 22,000 miles on it. Previous driver was a neighbor, never heard him beat on the car.
Under acceleration, the car makes a rattling sound, as if there was a loose flashing or worse, could be main bearings. I had test driven a 328xi with more miles which made no such noise. Power is great and there are no engine codes, but sounds like it may be getting worse. Has anybody had any main bearing or valvetrain failures without huge boost or racing or loss of oil pressure??
I have read the threads about the wastegate flutter, but it sounds more regular and deeper than that.
Thanks in advance for any help!