My wifes '85 300D has a screeching noise coming from inside the dash. It starts after the A/C has run for a while. If she turns on the defroster, it stops.

I'm thinking it's the blower motor after doing a search. Would you all agree? Do I need to order the one with the fan from Parts Shop?

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Mr. BILL

91 300E 120K
90 300SE 275K (sold)
92 BMW 525iM 120K
90 BMW 525iA 175K
85 300D 175K (sold)
84 300SD 245K (sold)