If you're gonna remove and reseal the front timing cover, then might as well go the way that Hans described since you'll have all that clutter off -- and yes, the MB sealant, although pricey, is still the best stuff.

IF you're lazy like J.H. and I try his method. Buy 2 hoses though just in case you mangle the first one. They're pretty cheap.

Good luck!

~Paul

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'91 300E, 209k miles