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Re: <E34> 1992 525i, Noise at 80 mph+



On 7/29/98 8:02 AM owner-bmw-digest@domain.elided 
owner-bmw-digest@domain.elided wrote:

>From: Peter Biernacki <pbiernac@domain.elided>
>Date: Wed, 29 Jul 1998 00:13:38 -0700 (PDT)
>Subject: <E34> 1992 525i, Noise at 80 mph+
>
>The car in question is a manual 1992 E34 525i with the M50 engine.  (7/91
>production date).  
>
>The car runs great except for at 80 mph and up, regardless of gear (it
>could be in neutral), there is a VERY loud noise (like a rattle) coming
>from inside the center of the dashboard.  I have no idea what could be
>causing the noise, but one thing that is certain is that it is 100%
>reproducible by hitting 80!  Any ideas what it could be?  Thanks.

Check the plastic grille over the cabin air intake at the base of the 
windscreen. These can generate all manner of weird sounds. I had a rental 
5 series in Europe (520i auto - what a slug!) on which this part made a 
sound like a kazoo. I fixed it with chewing gum!

Neil
96 M3

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