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high pitch sound

marcus28

Banned.
hi guys, I'm hearing high pitch sound when driving my 325I between 20-40km and beyond 40km the sound is gone. It is normal for inline 6 engine?
 
Re: high pitch sound

can you be more specific? where is the sound originating from and how loud is it? are you driving in a straight line or around a bend when the noise happens?
 
Re: high pitch sound

Oppss. sorry , i opened a wrong thread.

I heard the sound from the cabin whenever the car in motion between 20-40km. it sounded consistently like 'eeeeeeeeeeeeeeeeeeee' and get sharper when I stepped on the accelerator regardless the road is bend or straight. After 50km the sound is gone.. thanks
 
Re: high pitch sound

i am no pro, but have you done any audio ?

had this problem which sounds like yours after doing ICE. it was the "aeroplane" sound coming from speaker.... fixed the problem by just changing the RCA cable...
 
Re: high pitch sound

I have tried to removed the audio power source tapping to battery , but still have the eeee sound .. Really strange
 
Re: high pitch sound

i had a similiar problem on my previous benz but that was timing belt

not sure if its the same

also stops after a certain speed is achieved

bottomline:

go workshop check it out
 

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