One problem related to engine oil leaking 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.
Lost compression at only 43,670 miles to fourth cylinder. Engine was rebuilt by Audi dealer. Found pieces of oil control ring from a piston in oil pan, air leaking through intake, seating surface for intake valve number 2 on cylinder 4 was burnt and unable to seat properly due to spring on that valve being weaker than others.