Shenda

Hi Any suggestions? engine management light on our 2020 A1 25, illuminates and independent said fault code was MAF sensor, it was changed and ok for 500 miles, then same issue and fault code, so he changed again at no cost. Same issues again. Unlikely it’s 3 faulty sensors and independent saying contact main dealer as he can’t do anything else. Anyone had this issue and/or any suggestions without meaning up main dealer costs? I’m based Rickmansworth thanks