A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

Bad sound

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Old 03-02-2019, 03:06 AM
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Default Bad sound

Hi a have problem bad turbo sound. Vacuum sound come in air filter box from turbo I changed n75. In video similar sound. Where i need search a problem? Noise come when rpm is 2k and drop down. When drive and rpm 2k and rise a in 3k sound is blow vacuum and sound gone and power increase. When i check vcds all diagram was ok. Pls hellp.


Video for sound: https://youtu.be/hYBGfjw1EWg
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