Is it possible that they messed up, my wheel speed sensor?lights were not on b4.

What is your question?

a 2006 bmw x3, took my car in b/c check engine light coming on. bmw dealer calls says leaking air car, rec with suspension component replacement(alignment) rear springs broken and Evac and recharge system with dye for air conditioner. Get my car back and had a week; Abs, brake, 4x4 and tire light all on. brought back they say oh lets put it on the machine, oh we found nothing lights are off. then 4 days later all lights back on, take it back oh its the wrong filter.. lights off. 5 days later all lights on again, now they say it is the wheel speed sensor.