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BMW 3-Series (E90 E92) Forum
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N54 no boost
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02-07-2020, 09:50 AM | #1 |
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N54 no boost
I am looking at an N54 335i that runs, doesn't smoke but has no boost with some wastegate rattle.
There is no ses light on the dash. Possible vacuum leak or boost solenoids? It has 118000 miles. |
02-07-2020, 10:36 AM | #2 |
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Drives: 2007 Black/Black 335i e90
Join Date: Apr 2011
Location: Holly, MI
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02-07-2020, 12:30 PM | #5 | |
First Lieutenant
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The car is priced at 4000. Very nice condition, gray, black interior, auto, aluminum looking trim. I may roll the dice. and pick it up. Can the turbos be bad without them rollin smoke though? |
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02-07-2020, 12:38 PM | #6 | |
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I would throw out the offer and see what they say. Can't hurt. |
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02-07-2020, 03:25 PM | #7 |
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If the car isn't throwing a half engine light and a 30 ff code when you floor it then it's not the turbos. The DME is expecting to measure a certain level of boost throughout the rev range and if it doesn't see the right amount it will throw a 30ff code...
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02-07-2020, 04:48 PM | #9 |
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The seller is stating that. I have not physically looked at the car yet. It's an xi car.
I am just thinking that it's something simple. I need to go and drive it as I can compare with my 07 335i. I am just trying to prepare for what to look for. Last edited by clegg; 02-07-2020 at 05:56 PM.. |
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02-07-2020, 07:36 PM | #10 | |
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To your other question, yes the turbos can be bad without smoking under some conditions. My rear turbo was quite shot when I moved to RBs but it didn't smoke. I'm not too familiar with the high mileage N54s but my understanding is the turbos don't last much over 100k (mine failed at 60k fwiw) |
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