Yes, I agreed with those that suggested I had a low voltage situation - and yes I checked the battery several times at AutoZone (didn't trust the associate that helped the first time.)

But some one (may have been M.B.Doc) suggested I check the distributor caps. They were green and well worn. I ordered new ones from FastLane this week - got them today, and installed this evening.

All is better - had nothing to do with low voltage - and the car sputtered - I have no clue why the Distributor Cap and Rotors made such a difference.

The car runs great. Seems I am once again "Happy with Mercedes."
BTW - the E420 is a nice ride

__________________
Thanks for the help
Bill Fisher

'86 560SL (186K) - Now a 'classic' : Registered as an Historic Vehicle
02 E430 in the stable
'14 LS460 (Lexus)
- - - - -
'95 E420 (198K) found a new home
'99 E320 (80K) (gave it's life for me as we hit a bumper)
'95 E420 (231K) Sold to a happy buyer, new to Mercedes
'90 300E (65K) Sold to an Mercedes Lover
'92 190E (215K) - retired to the salvage yard
'93 500SEL (214K) - Moved to another family, still runs like a young pup