i have a 1999 slk 230 with a manual transmission, has anyone out there ever towed one behind a motorhome? mercedes themself will not say anything except they don't recommend it, it is out of warranty so they don't have a liability but nobody seems to be able to help me

Try posting this question in the Tech Help forum. This is a question that is not really that tough, but there are a few very qualified mechanics on that forum who should be able to help you. Personally, I would be inclined to put the car in neutral and have at it. I don't see how it differs much from normal driving where only one gear is selected and the rest are meshed but not engaged via the dog clutches. In the towing case, all are not engaged instead of 5 of 6 not being engaged. But don't take my word on this, go ahead and get a trained mechanic to weigh in on the question. Good luck, Jim

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Own:
1986 Euro 190E 2.3-16 (291,000 miles),
1998 E300D TurboDiesel, 231,000 miles -purchased with 45,000,
1988 300E 5-speed 252,000 miles,
1983 240D 4-speed, purchased w/136,000, now with 222,000 miles.
2009 ML320CDI Bluetec, 89,000 miles

Owned:
1971 220D (250,000 miles plus, sold to father-in-law),
1975 240D (245,000 miles - died of body rot),
1991 350SD (176,560 miles, weakest Benz I have owned),
1999 C230 Sport (45,400 miles),
1982 240D (321,000 miles, put to sleep)