Quote:
Originally Posted by hookedon210s
Most 2004 and newer MBs have a silicate bag in the expansion tank that releases replenishing silicates over time...hence the long change intervals. Quite nifty really and other manufacturers could take a page from this. Mark
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They probably will.
My 2008 C300's manual shows a 15 year coolant change and at this point there is no reason to believe this isn't technically possible. It's also possible than this will change at some point when cooling problems might start appearing, particularly if MB has to pay the repair bills.
Keep in mind that the MB "lifetime trans fluid) idea didn't last too long and the change interval became about 38000 miles in 2005 (or before) because of warranty claims related to fluid related problems.