Hi all, this morning when I started my a2 up the car beeped 3 times and an exclamation mark warning light showed up on the dash. I've checked the brake fluid level and this is fine, and the brakes seem to still work on my drive to work and back today. I did notice though that the sensor below the brake fluid reservoir looked broken, could this be the reason I am getting this warning message up on the dash? please see the photo below