Bullet:

Thanks for the info. Please let me know your experience with the lower-octane test. It may be a superfluous test in your case because I would assume that in 3/99, the replacement injectors were the MB redesign/replacement my tech told me about. That should've eliminated one possible cause for rough idle in your car. At least, if what my MB tech told me was accurate it should have. Part of the reason I posted was to get reaction from MB folks with way more knowledge than I currently possess.

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David

His:
2003 Dodge Durango SLT
2002 BMW E39 530i Sport
1988 Mercedes 300TE
Hers:
2003 Chevrolet Suburban
1999 E430