Recently had to have my a3 inspected(PA). When I picked the car up I had multiple warning lights(ABS, TPMS, Stability Control and briefly the power steering assist). Part of the inspection requires the car to be put on the lift to check out exhaust etc., and pulling one wheel from the front and one rear tire to inspect the brakes. They pulled the front left and the rear right??? Didn’t trust shop to start trying to rectify and took it to my regular mechanic. He says it’s a speed sensor and hub on the left rear??? Any ideas? Thanks