One problem related to o2 sensor has been reported for the 2015 Audi A3. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Audi A3 based on all problems reported for the 2015 A3.
2015 Audi A3 ,18000 miles, O2 sensor bankj 1(after the engine) was change bank 2 close to the exhaust not change but keep going back the check engine light, need help.