Vabration in dash. Under hard acceleration....

4.2 V8 32v Naturally Aspirated - 414 bhp
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RS4pete
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Joined: Thu Jun 24, 2010 12:16 pm

Post by RS4pete » Fri Feb 25, 2011 8:40 am

Thanks for that, I'll give it a go over the weekend :-)
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B7 RS4
Mi16'd 205 1.9 Gti
1999 Yamaha R6
White Transit :)

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RS4pete
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Joined: Thu Jun 24, 2010 12:16 pm

Re: Vabration in dash. Under hard acceleration....

Post by RS4pete » Fri Mar 11, 2011 9:32 pm

Ok, so door card off, winder motor, speaker, airbag sensor and foam cover off. I still can't find the bloody vibration :thumbsdown: it sounds like its from the front window cable but even when I tension it by hand the vibration is still there. I've temporaraly stuffed towels by the fuses and up inside the door skin and it's still there! The only thing I can think of now is to try and recreate the resonance of the exhaust at 3k-5k by pressing the pad (no sanding disc of course) of an orbital sander against the internal door skin and varying the intensity. It that doesn't work I might try by using a sound system speaker and a good drum and bass tune :biggrin2:

This is driving me' crazy now!
--------------------
B7 RS4
Mi16'd 205 1.9 Gti
1999 Yamaha R6
White Transit :)

lugars4
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Location: Kent

Re: Vabration in dash. Under hard acceleration....

Post by lugars4 » Tue Mar 15, 2011 10:40 pm

I found it !!!! after weeks of stress and hating the thing, i narrowed it down to........................Inside the wheel arch.

Basically i tried everything you have from inside the car and NOTHING made a difference, so i figured its outside the cabin.

Took the wheel off and the wheel arch liner. There were 2 plastic pipes, 1 black box and the air filter housing feed (rear one) in there.

I moved them all and made sure nothing was touching and metal pannels or the wing. I couldnt see anything obvious but after that i have not heard it in 2 weeks and am certian i have stopped it (trust me i have tried to replicate it)

Good luck, i know how annoying this one can be, i was so P***ed off i was looking to sell it! :audibash:

I suspect it was the air feed up in the front wing ..... its easy to see once you get the liner off.
Last edited by lugars4 on Tue Mar 15, 2011 10:55 pm, edited 2 times in total.
06 - B7 RS4 Saloon - Milltek Non-Res Valved. BMC Filter.

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RS4pete
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Posts: 473
Joined: Thu Jun 24, 2010 12:16 pm

Re: Vabration in dash. Under hard acceleration....

Post by RS4pete » Tue Mar 15, 2011 10:50 pm

Happy days :-) I'll have a look at mine tommorrow.
--------------------
B7 RS4
Mi16'd 205 1.9 Gti
1999 Yamaha R6
White Transit :)

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