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[QUOTE=Daman1702;27822913]Hey i have a bmw 335i 2008 with pure stage 2 DD turbos. since 500 miles from leaving a verified shop in nyc. it started to have a extremely loud waste gate rattle. ive done every boost line and both solenoids and it continues to rattle worse then my old turbos ever did. Its usually when im rolling down a flat ground or down hill at about 1.5-2.5k rpms coasting or on a deceleration. it will sound like a quarter in a soda can. ive done adjustments from my tuner wedge performance multiple times to no success and done every percent of waste gate rattle fix in mhd tool and still always rattles. also it rattles when i rev in neutral only at 1.5krpm when the rpms drop after letting off the gas. i usually dont hear any rattle when accelerating its only when coasting or on deceleration.
what can i do to fix this issue without having to do a turbo swap?
also havent done any actuator arm adjustmenets yut but it never happens when the door is completely shut.
Did you ever fix the rattle? I’m having the same issue. Pure stage 2 600s installed about a year ago, as long as I can remember I’ve had a slight rattle on light acceleration. Now it’s progressively gets worse not only on light acceleration but very bad on deceleration, every time I let off the gas! The rear turbo wastegate actuator is definitely the issue. Very lose, I can shake it and hear the same rattle as I do when driving. Also can easily open close the wastegate into the diaphragm. Which is oddly rusted. Also have an oil leak which looks like it’s coming from the middle of the turbo (viewed under the car)
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