Turbo and Boost Issues

tegoblue335i · 08-02-2011, 05:37 PM

So about a week ago I was on a little road trip and on the way to my destination I loose basically all my boost. I initially thought that it was just a boost leak, but then my turbos started making a very slight supercharger type of noise upon trying to make boost. I had no choice but to keep driving but keeping the car out of boost. Anytime i would slightly give it gas i would get a half engine light.

Anyways, i bring the car to the dealer when I return and left it there for a few days. I pick it up and they tell me they replaced both the turbos! (For free under CPO warrenty)

I was happy to say the least but not for long...

So i drive the car perfectly for just a day, then I notice that my boost was slowly but surely decreasing after every pull. It eventually got down to about 1 psi max lol. So I take it back to the dealer and they look at it for a whole day. The next day they tell me they find my procede (shit) and that my trunk vacuum plug was unplugged and said that these things might be causing the problem. I knew they weren't but I agreed to take out the procede and they agreed to look at it again after that.

So that's where I am now. Its currently at the dealer with no procede. Hopefully they can figure it out this time. My concern is that what if it is the turbos again? is it possible to destroy brand new turbos in less than a day?

If you guys have any idea what it could be please let me know. Thanks! Sorry for the long story lol.

OpenFlash · 08-02-2011, 05:40 PM

It's probably going to be a leak in the vacuum lines that actuate the wastegates. Pretty common on car with 40k+ miles Hopefully the dealership checked this before replacing turbos. But by the sound of it, they didn't.

tegoblue335i · 08-02-2011, 06:01 PM

Yup, that's initially what I thought it would be, but since they replaced the turbos I assumed they would have already checked preliminary stuff like that. But I guess the techs weren't smart enough to check for leaks first and decided to waste $4,000 of their dollars to replace the turbos lol.

OpenFlash · 08-02-2011, 06:03 PM

Quote:

Originally Posted by tegoblue335i

Yup, that's initially what I thought it would be, but since they replaced the turbos I assumed they would have already checked preliminary stuff like that. But I guess the techs weren't smart enough to check for leaks first and decided to waste $4,000 of their dollars to replace the turbos lol.

Hey, their laziness is your gain

tegoblue335i · 08-02-2011, 06:10 PM

haha yes! free turbos FTW

08-02-2011, 05:37 PM	#1
tegoblue335i Enlisted Member 4 Rep 44 Posts Drives: AW 135i Join Date: Nov 2010 Location: Orlando, FL iTrader: (0)	Turbo and Boost Issues So about a week ago I was on a little road trip and on the way to my destination I loose basically all my boost. I initially thought that it was just a boost leak, but then my turbos started making a very slight supercharger type of noise upon trying to make boost. I had no choice but to keep driving but keeping the car out of boost. Anytime i would slightly give it gas i would get a half engine light. Anyways, i bring the car to the dealer when I return and left it there for a few days. I pick it up and they tell me they replaced both the turbos! (For free under CPO warrenty) I was happy to say the least but not for long... So i drive the car perfectly for just a day, then I notice that my boost was slowly but surely decreasing after every pull. It eventually got down to about 1 psi max lol. So I take it back to the dealer and they look at it for a whole day. The next day they tell me they find my procede (shit) and that my trunk vacuum plug was unplugged and said that these things might be causing the problem. I knew they weren't but I agreed to take out the procede and they agreed to look at it again after that. So that's where I am now. Its currently at the dealer with no procede. Hopefully they can figure it out this time. My concern is that what if it is the turbos again? is it possible to destroy brand new turbos in less than a day? If you guys have any idea what it could be please let me know. Thanks! Sorry for the long story lol. __________________ R.I.P. E92 335i :PROcede v4: :Vishnu DCI: BT FMIC :Catless Downpipes: Current:AW 135i
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08-02-2011, 05:40 PM	#2
OpenFlash 1809 Rep 17,960 Posts Drives: A Lot Join Date: Sep 2006 Location: SF Bay, CA iTrader: (0) Garage List 2018 Ducati Panigal ... [0.00] 2016 Mazda CX5 [0.00] 2017 Aprilia Tuono ... [0.00] 2019 BMW M2 Competi ... [0.00] 2015 BMW M5 Competi ... [10.00] 2016 Ducati XDiavel S [0.00] 2016 AMG GT S [0.00] 2011 Ferrari 458 It ... [0.00] 2017 Charger Hellcat [0.00] 2015 KTM Super Duke ... [0.00] 2016 KTM RC390 [0.00]	It's probably going to be a leak in the vacuum lines that actuate the wastegates. Pretty common on car with 40k+ miles Hopefully the dealership checked this before replacing turbos. But by the sound of it, they didn't.
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08-02-2011, 06:01 PM	#3
tegoblue335i Enlisted Member 4 Rep 44 Posts Drives: AW 135i Join Date: Nov 2010 Location: Orlando, FL iTrader: (0)	Yup, that's initially what I thought it would be, but since they replaced the turbos I assumed they would have already checked preliminary stuff like that. But I guess the techs weren't smart enough to check for leaks first and decided to waste $4,000 of their dollars to replace the turbos lol. __________________ R.I.P. E92 335i :PROcede v4: :Vishnu DCI: BT FMIC :Catless Downpipes: Current:AW 135i
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08-02-2011, 06:10 PM	#5
tegoblue335i Enlisted Member 4 Rep 44 Posts Drives: AW 135i Join Date: Nov 2010 Location: Orlando, FL iTrader: (0)	haha yes! free turbos FTW __________________ R.I.P. E92 335i :PROcede v4: :Vishnu DCI: BT FMIC :Catless Downpipes: Current:AW 135i
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