In my experience, it is very strange for these cars to EVER run warm. I do not see them run over 100 even in the summer with the A/C on... I'd make sure the cooling system is in good shape and run it.
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Benzmac:
Donnie Drummonds
1992 500E (very soon I hope

1981 280GE SWB
ASE CERTIFIED MASTER AUTO TECHNICIAN
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