Hello,
My first thread here and I am already asking for help
Few days ago the blower motor in my 2003 E39 530i stopped working. I was kind of expecting it as it was squicking for last few months.
It stopped working a day before I was to take the car for an oil change, so when I took the car to the shop, I asked technician to do his diagnosis and to give me a quote for repair (blower motor replacement), telling him that most likely that the blower motor died.
He came back to me with a diagnose that it is not the blower motor but FSU (resistor) which is common point of failure with E39 and he gave me quote for replacement. He said that he did the diagnostics and he was able to turn on the blower motor (!?), which means that the resistor is gone.
He made my day, I thought, knowing that blower motor replacement would make my wallet very light. On the other hand, I can easily replace FSU by myself.
I bought a new genuine BMW FSU, read the DIY and it took me about 30 minutes to replace FSU. With exception of having my 6'-5" body with proportionally long limbs doing all kind of gymnastics under the glove box, things went pretty smooth.
It was the time to celebrate job well done, so I turn the key on but.. nothing... no blowing from the ducts..
I decided to check if the fuse is blown. I found well hidden 40 amp fuse behind the glove box but it was OK - fuse not blown.
Now I am not sure what is going on - the guy in the shop told me he was able to turn blower motor on - so resistor problem according to him.
On the other hand, I replaced the resistor and it still doesn't work.
So here are the question:
How can I test the blower motor to see if it is really functional (as the technician in the shop indicated) so I can then blame defective new FSU and request replacement. What did he do to be able to turn the blower motor on?
Thanks!
My first thread here and I am already asking for help
Few days ago the blower motor in my 2003 E39 530i stopped working. I was kind of expecting it as it was squicking for last few months.
It stopped working a day before I was to take the car for an oil change, so when I took the car to the shop, I asked technician to do his diagnosis and to give me a quote for repair (blower motor replacement), telling him that most likely that the blower motor died.
He came back to me with a diagnose that it is not the blower motor but FSU (resistor) which is common point of failure with E39 and he gave me quote for replacement. He said that he did the diagnostics and he was able to turn on the blower motor (!?), which means that the resistor is gone.
He made my day, I thought, knowing that blower motor replacement would make my wallet very light. On the other hand, I can easily replace FSU by myself.
I bought a new genuine BMW FSU, read the DIY and it took me about 30 minutes to replace FSU. With exception of having my 6'-5" body with proportionally long limbs doing all kind of gymnastics under the glove box, things went pretty smooth.
It was the time to celebrate job well done, so I turn the key on but.. nothing... no blowing from the ducts..
I decided to check if the fuse is blown. I found well hidden 40 amp fuse behind the glove box but it was OK - fuse not blown.
Now I am not sure what is going on - the guy in the shop told me he was able to turn blower motor on - so resistor problem according to him.
On the other hand, I replaced the resistor and it still doesn't work.
So here are the question:
How can I test the blower motor to see if it is really functional (as the technician in the shop indicated) so I can then blame defective new FSU and request replacement. What did he do to be able to turn the blower motor on?
Thanks!