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Submitted: 508 days and 22 hours ago.

Category: BMW

Value: $40

Status: CLOSED

Optional Information:
1983 BMW 320i M10

Posted by SuperDave Auto 508 days and 21 hours ago.

Info Request

Hello XXXXXXX,
Do you mean the a/c only works when over 2k or the blower motor itself only works when engine is over 2k??

508 days and 21 hours ago.

Reply

Reply to SuperDave Auto's Post: It seems to be the blower itself. When I turn off the AC switch the blower works fine.

Posted by SuperDave Auto 508 days and 21 hours ago.

Info Request

Now you have really confused me. Do you mean that the blower only works over 2k with the a/c is on and that with the a/c off, the blower motor works just fine and normal???

508 days and 21 hours ago.

Reply

Reply to SuperDave Auto's Post: Yes. If I just have the vent open and the blower on it will blow you out of the car. When I turn the switch for the AC on the Blower goes down until the RPMs go up.

Accepted Answer

OKay,
Most likely, you have a bad a/c blower motor resistor assy. Replace that and you should be fine. Why they put 2 different resistors on for the fan ... I can't tell you. But they did.
Good Luck. Hit the ACCEPT button. Leave positive feedback if I have been helpful. Thank you. Dave

Accepts:
Expert:	SuperDave Auto
Pos. Feedback:	100.0 %
Answered:	7/1/2008

ASE Certified Technician

ASE Master Auto and Truck Technician, 24+ years shop owner

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Optional Information: 1983 BMW 320i M10

Info Request

Hello XXXXXXX,Do you mean the a/c only works when over 2k or the blower motor itself only works when engine is over 2k??

Reply

Reply to SuperDave Auto's Post: It seems to be the blower itself. When I turn off the AC switch the blower works fine.

Info Request

Now you have really confused me. Do you mean that the blower only works over 2k with the a/c is on and that with the a/c off, the blower motor works just fine and normal???

Reply

Reply to SuperDave Auto's Post: Yes. If I just have the vent open and the blower on it will blow you out of the car. When I turn the switch for the AC on the Blower goes down until the RPMs go up.

Accepted Answer

OKay,Most likely, you have a bad a/c blower motor resistor assy. Replace that and you should be fine. Why they put 2 different resistors on for the fan ... I can't tell you. But they did. Good Luck. Hit the ACCEPT button. Leave positive feedback if I have been helpful. Thank you. Dave

Related BMW Questions

Optional Information:
1983 BMW 320i M10

Hello XXXXXXX,
Do you mean the a/c only works when over 2k or the blower motor itself only works when engine is over 2k??

OKay,
Most likely, you have a bad a/c blower motor resistor assy. Replace that and you should be fine. Why they put 2 different resistors on for the fan ... I can't tell you. But they did.
Good Luck. Hit the ACCEPT button. Leave positive feedback if I have been helpful. Thank you. Dave