My 89 420SEL clock only works intermittently, and I really don't care --- don't really look at "dash time" anyway. My 76 450SEL clock also works a bit, but not consistently .... so the net result is that they do not really work well and I am not going to fool with them. My 99ML electronic clock is still doing fine however.

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Ben Harrison Carter
1999 Mercedes ML320 87K
1992 Mercedes 300CE 89K
1995 Corvette 29K -- Sold Dec 09
1989 Mercedes 420SEL 99K -- (Sold 4/08)
1968 Mercedes 230S (106K) (Sold 9/06))
1976 Mercedes 450SEL 130K (Just sold - 06)
1961 Mercedes 220Sb (sold years ago)