e240 1998 auto.at around 1200 and 2000 rpm i have developed a
vibration through the car.it felt like prop uj or bearing vibration
but you dont have to be moving.ive checked the engine and box mounts
and its running smoothly so i assume its fireing on all (12) plugs.ive
code read it and its clear.any ideas?

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apache wrote:
Check the exhaust stability and rubber mounts. Could be a resonance and
this is a long and possibly vibrating part with comparable frequencys:
1200 rpm = 20 Hz.

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Roland Franzius

I would clean the AFM meter... use the AFM cleaner.

On Fri, 09 Mar 2007 03:30:25 GMT, apache <none (AT) 000 (DOT) com> wrote:

deteriorating. I seem to recall that the engine would vibrate some
time before it broke up. By then, it was a costly repair.

However, just checking it was simple enough and inexpensive. You say
the engine runs smoothly so this does not seem to be the cause, but I
would check, just in case.

WÇY

thanks for the response WCY,what is a harmonic balancer and where is
it found-i have not come across this before

"apache" wrote:

On Tue, 13 Mar 2007 17:31:04 GMT, apache <none (AT) 000 (DOT) com> wrote:


For harmonic balancer, see first
http://en.wikipedia.org/wiki/Harmonic_balancer
then,
http://en.wikipedia.org/wiki/Mercedes-Benz_W210

And you can get an idea.
Hope this has been of help.
WÇY