The motors are different depending on whether the car has automatic or manual climate control. The manual climate control blowers have a regulator attached for the fan speeds. The automatic one uses a variable resistor and the connection is different.
edit: this is for the 450SL, I'm not sure about the W116.
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With best regards
Al
Last edited by alabbasi; 09-08-2018 at 01:16 AM.
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