Crankcase (pcv) problems of the 2017 Audi Q7

My 2017 Audi Q7 prestige 3. 0t 6cyl gas crec supercharged has experienced repeated, serious failures involving the engine, powertrain, and fuel system. - at 72,000 miles, the vehicle developed coolant leaks under the supercharger, a failed water pump, and soaked drive belts. Repairs included multiple hoses, gaskets, and thermostat replacement. -shortly after, repeated pcv/oil system failures caused oil leaks, warning lights, and engine shaking. Repairs included pcv system, oil separator, valve cover gasket, breather pipes, and new spark plugs. - at 111,000 miles, the low-pressure fuel pump and relay failed, causing the vehicle to stall and lose all power while driving- a major safety risk. -most recently, the engine developed a severe misfire in cylinder #4. Compression testing confirmed abnormally low compression (15 psi) due to a suspected cracked valve seat. The vehicle cannot be repaired without a complete engine replacement, quoted at ~$20,000. Safety impact: - vehicle has stalled suddenly in traffic due to fuel and engine failures, risking crash or injury. - coolant and oil leaks present a potential fire hazard. - loss of power and shaking while driving put my family and others at risk. Inspection/confirmation: -all problems have been repeatedly confirmed and repaired by an independent Audi specialty service center (s&s auto repair). - numerous invoices document coolant, oil, fuel, and engine failures. Warning signs: - multiple dashboard warning lights appeared either right before or during failure, including engine malfunction, coolant loss, and auto start/stop malfunction. These repeated failures at relatively low mileage suggest a design/manufacturing defect with the Audi 3. 0t engine platform that compromises both safety and reliability. The issue seems to be widespread amongst other Audi owners with the same 3. 0t engine- per Audiworld forums.

Pcv valve and pcv solenoid failure. Covered under an Audi extended warranty for 2013-2016, but not 2017. Exactly same failure.

I got the checking engine malfunction. Took it to the dealer for dianogtic found code p052e001 pcv ( crankcase breather valve fault and it need to be replace because it also caused the emission issue). I found it was under extentison warranty to 10 year or 120000 miles , I contacted Audi and they said my VIN is not eligible to the warranty. I believed they should provide the extension warranty for all of their vehicles.