Question for all M50 owners

[Brandon Ong <ong2jr@xxxxxxxxxxxxxx>]

Antony,
        This phenomenon use to happen on my M52 equipped 320i.  I switched
back to the original spark plugs (from the Beru Silverstones) and the
problem went away.  Might also wanna replace the fuel filter or have the
fuel injectors cleaned.  Hope this helps.

Regards,
Brandon Ong
Singapore
95' 320i Cabrio

Antony Pohl  wrote:
>Here it is:
>
>Drive about 65-70 and kick down into 3rd gear for hard acceleration.  Watch
>the tach pass 4000 and klimb towards 5000 (should be up to about 80-85 now).
>Somewhere between 4 and 5k you should see (and feel) a 200 RPM
>correction/dropout.  You will actually see the needle go backwards.  I can
>make thi shappen every time in 'E' mode and I think most of the time in 'S'
>(maybe every time, I don't use 'S' that often).
>
>My dealer said he couldn't find anything from the BMW tech database either.
>I it hard to belive that these three things could happen at the same time:
>
>- - All M50s do that
>- - BMW has no tech info on this
>- - Nobody on this list has ever complained about it before
>
>I hope you guys can assist me here, I still have warrenty coverage for 1000
>miles!  I would guess if this is a transmission or engine problem that that
>is a rather expensive repair.

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