Please help! Concerns after having these new turbos installed!

jer335 · 05-09-2014, 01:02 PM

My situation is kind of complicated. I've read numerous threads here trying to find a solution regarding my issue. To start. I recently had new turbos installed under the 82,000/8year warranty.

Before getting these new turbos installed, I used to be able to hear the turbos whooshing/spooling. Now with these new turbos, I barely hear them whoosh/spool. Not really a big deal but kind of concerned me.

Bigger concern is that I have this metallic/tin rattle sound under light acceleration in gears 1-2, 2-3 and it only occurs during 1500-3000 RPMs. The noise is very faint and you have to listen closely to hear it. IIRC, waste gate rattle only occurs during deceleration or when the RPMs drop in neural right? I revved the car in neutral and there was no rattle. I know there's an exhaust flap that rattle but I unplugged the actuator in the trunk and the noise I'm getting on light acceleration is still there. Also had a foreman ride with me a few days ago and he said that noise is normal and all turbos make some sort of noise.

Not sure if this has anything to do with the problems I'm having but when the dealer installed the new turbos, I noticed there was oil leaking. I drove the car like this for about a week and monitored the oil level. Never ran low on oil. The oil was leaking from one of the turbo lines. Took the car back to the dealer and had them fix this issue. No more leaks.

I pretty much don't know what else to do. I'm sick of the dealer as they are probably sick of me. Work was done by Stevens Creek BMW in San Jose, CA. Any suggestions?

jer335 · 05-10-2014, 10:12 AM

Anyone?

FrankyGTR · 05-10-2014, 10:44 AM

i cant really here mine and i have DCIntakes? are you stock?

6BATMAN6 · 05-10-2014, 11:01 AM

Does your power seem to be the same ?

jer335 · 05-10-2014, 11:03 AM

Quote:

Originally Posted by FrankyGTR

i cant really here mine and i have DCIntakes? are you stock?

Completely stock. I used to hear the really quiet swissssh. Now I barely hear it.

jer335 · 05-10-2014, 11:05 AM

Quote:

Originally Posted by 6BATMAN6

Does your power seem to be the same ?

Power seems a little less than before.

FrankyGTR · 05-10-2014, 04:17 PM

well i could not hear them at all before i installed the intakes.im sure its fine

05-09-2014, 01:02 PM	#1
jer335 Private 9 Rep 66 Posts Drives: 335i Join Date: Dec 2013 Location: San Jose, CA iTrader: (0)	Please help! Concerns after having these new turbos installed! My situation is kind of complicated. I've read numerous threads here trying to find a solution regarding my issue. To start. I recently had new turbos installed under the 82,000/8year warranty. Before getting these new turbos installed, I used to be able to hear the turbos whooshing/spooling. Now with these new turbos, I barely hear them whoosh/spool. Not really a big deal but kind of concerned me. Bigger concern is that I have this metallic/tin rattle sound under light acceleration in gears 1-2, 2-3 and it only occurs during 1500-3000 RPMs. The noise is very faint and you have to listen closely to hear it. IIRC, waste gate rattle only occurs during deceleration or when the RPMs drop in neural right? I revved the car in neutral and there was no rattle. I know there's an exhaust flap that rattle but I unplugged the actuator in the trunk and the noise I'm getting on light acceleration is still there. Also had a foreman ride with me a few days ago and he said that noise is normal and all turbos make some sort of noise. Not sure if this has anything to do with the problems I'm having but when the dealer installed the new turbos, I noticed there was oil leaking. I drove the car like this for about a week and monitored the oil level. Never ran low on oil. The oil was leaking from one of the turbo lines. Took the car back to the dealer and had them fix this issue. No more leaks. I pretty much don't know what else to do. I'm sick of the dealer as they are probably sick of me. Work was done by Stevens Creek BMW in San Jose, CA. Any suggestions?
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05-10-2014, 10:12 AM	#2
jer335 Private 9 Rep 66 Posts Drives: 335i Join Date: Dec 2013 Location: San Jose, CA iTrader: (0)	Anyone?
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05-10-2014, 10:44 AM	#3
FrankyGTR Second Lieutenant 18 Rep 195 Posts Drives: N54 335i 6MT-R32GTR Join Date: May 2013 Location: Montreal iTrader: (0)	i cant really here mine and i have DCIntakes? are you stock? __________________ 2008 335i coupe 6MT BOOST FIEND
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05-10-2014, 11:01 AM	#4
6BATMAN6 Private 5 Rep 98 Posts Drives: 2010 335i m package Join Date: Oct 2013 Location: Long Island NY iTrader: (0)	Does your power seem to be the same ?
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05-10-2014, 04:17 PM	#7
FrankyGTR Second Lieutenant 18 Rep 195 Posts Drives: N54 335i 6MT-R32GTR Join Date: May 2013 Location: Montreal iTrader: (0)	well i could not hear them at all before i installed the intakes.im sure its fine __________________ 2008 335i coupe 6MT BOOST FIEND
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