[Eric335]

Hey all,

i have a CPO 2007 335i, and always seem to "think" i hear wastegate rattle. I partly think its b/c of all the horror stories i hear on here

anyways,

how could i go about checking this? what exactly does it sound like? would it throw an engine light?
If in fact my wastegates are acting up, this means i need new turbos (right?), is that covered under the 120k miles HPFP warranty or the standard CPO warranty?

also,
is there a way to check if i have a drop in boost? car doesnt feel as quick lately


Thanks, i know this is a repost, the didnt come up with specific/useful results. Point me in the right direction if im missing something....