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E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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Old 12-14-2019, 01:26 PM
MikeM702 MikeM702 is offline
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Intermittent heat blower

Hi all, Iím pretty new to BMWs and even newer to this forum. I bought a 99í 323i cabriolet a few months back.

One of my issues is the A/C fan not blowing hard, or at least not blowing consistently. No matter if the A/C is on or off, high or low temp, the fan rarely blasts at when at high setting. Every once in a while it will randomly turn on and blast air. Like it might blast for a few seconds, then back to barely a draft, then blast then stop again while driving or idling.

from online research, it seems to be the blower resister, which is like a $30 part. But before I purchase, how do I trouble shoot other possible issues??? I just donít want to waste my time.

ROADFAR HVAC Blower Motor Resistor Fit for 2000 BMW 323Ci /1999-2000 BMW 323i /2001-2006 BMW 325Ci /2001-2005 BMW 325i /2004-2010 BMW X3 /2000-2006 BMW X5 https://www.amazon.com/dp/B07RJVRGPV..._Cuu9Db78MZE7F


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Old 12-16-2019, 07:51 PM
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hornhospital hornhospital is offline
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If it were the resistor it would blow wide open all the time. Sounds more like intermittent contact in the circuit to the fan motor, or the brushes in the motor itself.
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Old 01-12-2020, 09:05 PM
MikeM702 MikeM702 is offline
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Originally Posted by hornhospital View Post
If it were the resistor it would blow wide open all the time. Sounds more like intermittent contact in the circuit to the fan motor, or the brushes in the motor itself.
Looks like i have to get in there and check if the fan is getting stuck first. Thanks for the advice!
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