My 85' 380SE sometimes goes beyond the 100*C mark if the outside temperature is above 85* and I am in city driving. I need to change my coolant I am sure, because it is the green coolant. Also need to check the fans.

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2004 Toyota Sequoia Limited 4wd
1991 Lincoln Town Car Executive
1991 Cadillac Sedan DeVille
1988 Mercedes 300SEL
1972 Chevrolet Caprice Kingswood Estate 9-passenger wagon
1973 Pontiac Grand Ville
(Prior MB's: 1974 240D, 1985 380SE, 1984 190D, 1993 400SEL)