Hi Friends:

I tried to turn the heater on in my 300SD today and it just blew cold air. The only time that it blew warm air was when I turned on the defrosters. Any suggestions? I recently had the radiator flushed. The car does not run hot and I don't think that I have any vacum leaks.

Thanks,

-George

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'81 300TD (White) 225,000 miles
'85 300SD (Burgandy) 239,000 miles
'86 300SDL (Silver) 340,000 miles