I have a 2014 BMW 528i with 73k (automatic) - when I start the car cold it can sometimes idle a little rough and be louder, but what I noticed today was when I put into Drive (but still sitting idle) I can feel vibration in the brake peddle, going back to Park and things are smooth again. When driving, until it's really warm, also has same peddle vibration and doesn't seem to run as well. No error code from simple diagnostic tools.
I have changed the spark plugs at 60k (not sure why they recommend new iridium plugs soo soon) and done all regular oil change/filters.
Ok while doing the spark plug did you break the plastic hose for the pcv value ?
It a corrugated plastic piece from crank to intake ?
no, it was the engine mount that were shot - common issue on N20 engines apparently