Does your scanner work with abs?

Check your hidden menu voltage when driving. One blip will give you trifecta.

Is the word brake red or yellow? If red low fluid.

If not voltage then next most likely it's an abs wheel sensor. If you can remove the bolt is easy to remove and clean and reinstall. If some rust gets in there it can throw off the sensor

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