blower only works for defrost - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 11-17-2008, 03:15 PM Thread Starter
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Vehicle: 1978 300D
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blower only works for defrost

My blower only works in defrost mode. Bi-level, hi, and lo do not work. What's likely causing this problem? Thanks,

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post #2 of 2 (permalink) Old 11-17-2008, 05:47 PM
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Could be a failed amplifier (small squarish black thing behind the glove compartment).

"If spending money you don't have is the height of stupidity, borrowing money to give it away is the height of insanity." -- anon
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