Pesuazo,

When the DC hovers around 10%, idle is just about the same as when it is at around 50%. I can't tell a difference. No difference in rpm either.

I had a thought today- this car has always been a highway car, so perhaps the problem wouldn't show up at idle?

Thanks for the response, I'll work on getting those EHA numbers.

Mike

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'90 300SE 298k
-300K and it gets put into retirement.
'80 300D 255k Purchased new by family in 1980.

Had a:
1973 220 (gas)
1980 300SD
1992 400E