uneven running /hesitiation - Mercedes Benz SLK Forum

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#1 Old 11-26-2012
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uneven running /hesitiation

hello again, been out in my 1998 2.3 slk and i have had a funny thing happen:
whilst in drive going slowly the car felt like it was hesitating and in neutral almost stalled with the revs falling and rising and not settling to a steady level.
In neutral i revved the car and it seemed to misfire at 4500 revs and wouldn't rev higher.
I took it down the motorway and it flew without any hesitation.
Any ideas?
Thanks Steve.
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#2 Old 11-26-2012
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Originally Posted by sb37 View Post
In neutral i revved the car and it seemed to misfire at 4500 revs and wouldn't rev higher. Thanks Steve.

That's normal. The factory fuel cut off in neutral is set @ 4500 RPM.
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#3 Old 11-26-2012
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