As far as I know there is only one sensor. You may just need to check the connections on the sensor you have. It is the yellow sensor that goes in the brake cooling duct, correct?
What car do you have? Is is automatic or manual?
On my 1996 manual 328i, the sensor was on the left side (driver side for me).
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Originally Posted by BMWBeauty416
I'm scared if you took pictures of me cleaning a rifle Dave might consider it porn