People erroneously refer to the FSU as the final stage resistor FSR but that prob went away in the 80s or 90s kind of like taking about the carburator.

The back blower uses a separate blower and FSU. You need to test your blower. Find the method using the pin jumper solution you can find on xoutpost.

I don't have/use the BMW software. I used a foxwell scanner that I can for example monitor the evaporator temp and test the blower by commanding it on 80% speed for example.

Somebody here knows if inpa etc can be used in the same way but it's most likely FSU and some chance it's the blower motor but you want it to be FSU much easier solution.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)