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Where is the AC blower transistor located and what does it look like on a 2003 BMW 745

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It is under the dash on the right side where the center console connects to the dash. more commonly known as the "final stage unit". These are very common to go out. They are very inexpensive on ebay or amazon and there are lots of walk through tutorials on youtube. You will not be able to see the aluminum pins because they insert into the air duct.
where is the AC blower transistor located and what - bf9a8c4a-37d3-456b-acae-11c68f22f94d.jpg

Posted on Apr 12, 2014


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SOURCE: need help on how to program remote for 2003 bmw

Initialize keys. Have all keys for the car with in reach. Get in car and close all doors. Put 1 key in the ignition and turn it to the key on engine off position and quickly turn it off and remove the key. With in 5 seconds press and hold the unlock button while pressing the lock button 3 times, after the 3rd press release the unlock button. If successful the door locks will lock then unlock. For the remaining keys you do not need to cycle the ignition just press the buttons as mentioned before.

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SOURCE: 89 BMW 325i Relay

The blower motor relay is located in behind the climate control center mounted to the ac box.The window relays are located in the power distribution center under the hood number k-5 and k-7.

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SOURCE: 2003 530i BMW heater/ac blower fan not operating.

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SOURCE: Front AC blower stop working on my BMW X5 2003

If you do not run even one level of performance as the needed engine control unit, check fuses! If they are okay, the fan is defective! is a frequent defect no only X5 E53 series

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SOURCE: How can I find a fuse box diagram for a 2003 BMW

well theres suppose to be a there is a folded paper in the actual box when you open it , It has the diagram in it ? if you dont have it then. hay i found one on this site hope it helps here the url. just scroll down you cant miss it ?

Posted on Oct 07, 2010

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Its probably not the fuse, but instead the blower resistor located under the dash. They are usually accessed from the glovebox side of console up near the firewall. This truck should have 3 fuse boxes, one back by the battery, one in glovebox (drop-down panel), and one under cabin air filter under hood. All should have fuse diagrams with them and there should be one in your owner's manual.

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