With the exception of $1400 coils (1 per bank), my S600 hasn't been horrendous. I know people who have had very good luck with W200 S500's as well. Infact, the S600 hasn't been all that much worse than my 560SEL, 300TD wagon or my W210 E55.

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'07 Yukon 2500
'13 Subaru Outback 3.6R
'13 Orbea Carpe 9-speed

Currently Benzless
Formerly: 300TD, S600, E55, 560SEL

---= The forest breathes, listen.
-Native American elder