2011 Audi A4

Across the small complaint set for the 2011 Audi A4, excessive engine oil consumption is the dominant theme. Multiple owners report burning through oil at an abnormal rate, with some describing the engine stalling or shutting down unexpectedly while driving. A few owners point to piston rings as the suspected source, though the consistent reported symptom is simply rapid, unexpected oil loss that can leave the engine without adequate lubrication. Powertrain complaints follow, with some overlap, owners describe drivability issues that appear connected to the oil consumption problem rather than separate mechanical failures. One isolated report describes a driver-side seatbelt that became difficult to latch and release, with the seatbelt warning light staying on after the belt engaged. A single complaint also mentions cruise control behaving erratically, with the vehicle accelerating or braking unexpectedly when speed is adjusted, requiring a hard brake input to regain control.