One problem related to engine belts and pulleys has been reported for the 2011 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Audi A4 based on all problems reported for the 2011 A4.
My vehicle was burning oil faster than normal. I have since had my car in the shop several times before oil changes were due to top off oil do to several lights coming "min oil", "oil pressure too low". I have had several oil consumption tests each year as well as parts replaced: pressure regulating valve, crankshaft damper and seal. Had a 40 point inspection in 2014 at 44k miles and in 2015 requested a multi inspection at 55k miles. I had several oil consumption tests around theses dates: 3/714, 5/7/15, 11/12/15. After they changed out parts I had to change 4 fuel injectors in 2016. To fast forward I had all oil changes on time and had to add oil several times in-between services. On Jan 11, 2019 I had another oil change, they replaced my oil sensors and breaks. 4 months later my "low oil light" kept popping up when I would turn. After checking the old 4 times it kept reading 3/4 full of oil. After I felt the car running strange I pulled over to buy oil and at this point I checked and it was bone dry. I put a quart in and at this point the car wont start. I had it towed to the nearest Audi dealership who told me I need a new engine and a new timing sensor. They said the amount of damage the timing belt had done caused the engine to need total replacement. Yet never spoke about why the oil sensors kept giving the wrong reading. Since I have owned my car from Aug 2013 it has burned more oil than I want to believe which makes this car bad for the environment and the air quality.