Thanks for the help. Larry: I haven't had the car that long but replaced the fluid when I got it about 20K ago with factory fluid. The old fluid was of course darker but was not red so I assume it was the factory fill. I guess it is all the heat in the overstuffed engine bay that kills all this stuff (tensioner, etc.).

M.G.: No leaks at the hose fittings, to where else are you referring?

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2008 GL320CDI 6K
1970 280SL 112K
1982 240D 210K (Sold)
1973 220D 220K (Sold)
1967 200D 160K (Sold)
1992 400E 139K (Sold)
1988 300E 148K (Sold)
1987 300D 257K (Sold)
1991 300E 108K (Sold)
1987 300E 131K (Sold)
1978 300D TMU (Sold)
1980 300D TMU (Sold)
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