Nahh, in all 7 years of driving them and my family having 7 of them as daily drivers, I've only encountered a "bad leak" once so far....this past december my turbo oil return tube began hemorrhaging quite badly (1/2 qt a day)....I replaced it and the oil pan gasket, and now it is dry and clean. My power steering pump leaks a bit from its main seal, but only about 1 cup of fluid per 2000 miles or so. None of our other cars really leak anything at all. My 300E loses virtually nothing in the 5-6 months/4000 miles between changes.

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-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)