01-30-2023, 09:29 PM | #1 |
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B38 Turbo Rattle
Hi,
Does anyone here driving a F40 118i/218i B38C engine have a wastegate rattle at low rpms? It only appears in Comfort mode and Eco Pro mode. Whenever i drive normally and the speed climbs slowly, the there is a rattling sound that seems like it is from the turbo wastegate. Any fix without replacing the turbo? The dealer said that its normal and they do not want to replace it. It is annoying me. |
02-09-2023, 06:31 AM | #2 |
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This is a known issue with BMW and they have it on their PUMA system. It's the wastegate actuator and I'm waiting for a fix which is supposed to be out be the end of this month. I'm waiting for it for my car.
It's absolutely not normal and your dealer is talking nonsense. |
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02-18-2023, 05:13 AM | #3 | |
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Quote:
All B38 engines that i know have this noise |
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11-17-2023, 03:49 AM | #6 |
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F40 M135i xDrive wastegate rattle and turbo squeak
I have the same issues with my 2020 M135i xDrive.
Brisbane BMW told me that this was a known issue, and took the car in to apply a 'spring kit' fix. This not only didn't solve the problem, but, it has now created a new noise - a squeak from the turbo on gear changes. You can hear the noises on the website I have created - https://bmwm135ixdriveownersforum.com/ BMW Australia has told me that this is "normal operational noise" for this model and that that was their final position. It makes absolutely no sense to me that BMW Australia would class this as normal, when they have this listed in their Puma faults system as a known fault, and then issue a fix. They also told me that if I wanted to take it further I would have to lodge a case with the Office of Fair Trading - so begrudgingly, that is what I have done - as well as lodging a case with QCAT. I have had further conversations with BMW Brisbane about an extended warranty on the turbo however I have requested a replacement... not hopeful but we will see... |
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