Originally Posted by
ala_xfire
My stepson was my advisor and he echoed "6 CYLINDER ONLY".
He should know, he has a 3 series, a 5 series and 3 X5 series bimmers.
Here's a mechanic explaining the problems with the BMW N63 engine, the 4.4L twin-turbo V8 that came in your F10 vintage 5-series and so many other BMWs.
I bet now you're even happier you have an N55 inline-6!
Earlier in the video he ragged on the 2.0L turbo-4 BMW engine as well.
Seems the only decent engine BMW makes is the 6!
Jump to 5:40 to hear him talk about the V-8.