Table 1 shows one common other fuel system related problems of the 2015 Audi Q3.
| Problem Category | Number of Problems |
|---|---|
| Other Fuel System problems |
Vehicle experiences sudden, intermittent loss of motive power, severe engine hesitation, and stalling while operating at highway speeds. Diagnostic scans confirm fault codes p2015 and p0341, indicating a failure of the intake manifold position sensor and camshaft position correlation. These mechanical failures, combined with extreme carbon buildup on the valves, create a hazardous operating condition where the vehicle cannot maintain safe speeds in high-traffic environments. The manufacturer (Audi) has acknowledged the intake manifold failure—which is a known defect under an extended 120,000-mile warranty—but refuses to remediate the consequential engine damage (carbon buildup) caused by the faulty manifold and a previous oil overfill incident at a certified dealership (chapman Audi of tucson). Despite a 12-month documented history of seeking repairs for these safety symptoms, the dealership repeatedly failed to diagnose the manifold defect, instead clearing codes and returning the vehicle to the road. This systemic failure resulted in a hazardous operating condition that now puts the driver at immediate risk of rear-end collisions due to unpredictable engine stalling. By refusing to perform the necessary top-end cleaning required to restore the engine to a safe state, Audi is knowingly allowing an unsafe vehicle to remain in service. This represents a significant risk to public safety and a failure to address a documented powertrain defect that compromises vehicle control.
Timing chain failure.
My 2015 Q3 is having the same problem timing chain failure lined in the 2019 recall for models from 2008-2014. My 2015 has about 51,000 miles and should not be having this issue according to several mechanics and my Audi representative could not provide me any information other than that my VIN didn't fall in the class action even if I was having the same problem. I believe my model year should at least be reviewed if the problem was common just a year before.