So ended up with a bit of wastegate rattle on the BMW N54 engine and I didn’t feel like pulling the turbos so looked up all the fixes for the 335i and proceeded to apply them. I did both the rear and more difficult front turbo fixes which sorted everything out. These are the mechanical wastegate fixes NOT the tuning fix which delays boost.
Make sure to subscribe to the channel and check out the other videos! ~ http://bit.ly/2I6vtyd