NHTSA Complaint #11633355 — 2017 AUDI Q7

2017 Audi Q7 with approximately 112K miles consuming oil at a rate of approximately 1qt per 500-700 miles. Misfire occurred on highway and then cleared overnight. Took to dealer and had them swap all coil packs and spark plugs. Approximately 500 miles later, multiple misfires in cylinders 3,5, and 6 and loss of compression while driving on highway at 70 mph. Vehicle taken to dealership where they completed diagnostics. 0 psi compression in cylinder 6, damaged cylinder walls, and broken valve. Cost of repair estimated at $25K.