N54 no boost load exhaust!

[BadOneThreeFive]

So I was just cruising tonight and it was running fine till out of no where I noticed the exhaust was loader then normal. I hit the gas and It had almost no boost. Sounds like I'm on map 8. NA map. It will boost a little bit but sounds like crap. Seems like only one of the turbos are working. I've had the wastegate rattle for the longest time and is it possible that the wastegate flap broke off? Any input will help. No check engine light or anything. Thanks

[JefryHorizon]

There is definitely something wrong with your wastegate. When mine started rattling very loudly after letting off the throttle. Slight boost leak issues, I did not have any check engine lights whatsoever, I had to replicate the issue to the SA and they decided to slap on new turbos under warranty. This was back when I only had JB4. Judging from your mods list, I'm guessing your wastegate actuator snapped since you cant hold boost.

btw I'm also an 08'

[MilehighM3]

Sounds like there is so much play in the wastegate pivot bushings, that one of them seized up. I wouldn't be surprised if they free back up from time to time with temperature changes in the turbo itself. Happens quite often

[BadOneThreeFive]

Is it possible that the wastgate came off in the turbo? I think I would hear that rattle out the exhaust but I didn't hear anything

[BadOneThreeFive]

Found the problem. Little pin that holds the actuator rod and wastegate lever snapped. Guess its back to stock and off to the stealership :/ front turbo too. Fml...