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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications 2012 535i engine noise
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      09-01-2015, 09:11 PM   #1
Rissen1k
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Exclamation 2012 535i engine noise

Hi,

I am new here and just got my first bmw used 535i a month ago. I think the engine emits some kind[/B] of hollow noise, like the injector sound speed but it's not them. It's more like something made of plastic with the speed of the injectors noise. I recorded the noise with my phone and if someone that has this engine can tell me if it's normal or not? I took the car to the dealer and they said no abnormal sounds made by engine. It is very noticeable when idle. On the recording focus on that hollow moving sound. Thank you and hope someone can help me.

I did a search on this did not find anything similar. If there is a thread on this please share the link.

Youtube direct link not working on this forum for some reason.
[u2b]https://www.youtube.com/watch?v=L7n4m3Taw10[/u2b]

https://www.youtube.com/watch?v=L7n4m3Taw10
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      09-01-2015, 09:50 PM   #2
paul223
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I can hear the noise but can't relate to it. Do you notice rough idle at cold start? Does it get louder during full throttle while parked or in motion? It sound like exhaust leak?
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      09-01-2015, 10:09 PM   #3
Rissen1k
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Quote:
Originally Posted by paul223 View Post
I can hear the noise but can't relate to it. Do you notice rough idle at cold start? Does it get louder during full throttle while parked or in motion? It sound like exhaust leak?
No this noise only stays at idle, when running it goes away. Doesn't matter if in gear or in park, as long as the car doesn't move you an hear that.
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      09-02-2015, 10:23 PM   #4
Rissen1k
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Bump
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      10-19-2015, 07:49 AM   #5
chelito0
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Any update on this? I have the exact same noise.
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      02-22-2017, 11:45 PM   #6
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2012 535i engine noise

Hi All,

I have been to 3 mechanics to get this noise checked

Everyone says this is the injector noise from a turbocharged engine. Which is absolutely normal.

I have showed it to BMW paid $ to investigate as well. They did a software update on my car, which has reduced it to some extent, however, i can still hear slight noise.

Thanks
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      02-23-2017, 07:29 PM   #7
EL Jeffe 5
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sounds normal
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