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My car is still under CPO and I have taken it in 3 times so far for the wastegate rattle. I actually went to two different dealers. The first time I went, Dealer A replaced the wastegate actuators. The second time Dealer A said they could not replicate. So I went to Dealer B and they replicated the rattle and replaced the actuators again.
At no time did they suggest or offer to replace the turbos. If the rattle comes back I go in again, I will bring up the turbo replacement.
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'11 335i M-Sport xDrive Coupe [LMB] COBB V3 & PTF Tune | E45 |4in BERK DP | VRSF 5in FMIC | BMS Intake | ER CP | Exotics Tuning CF Lip | CF Diffuser | Eibach Springs | Bilstein Shocks
'07 BMW 335i Coupe & BMW Z4 3.0i - Gone |