2014 Audi RS7 loud whistling noise started. Did some research on the forum and figured it was the PCV valve. Took car to dealer today and they let me know it needs a new breather valve and cost to repair is $3900. Car is out of warranty and I have an aftermarket warranty on the car (Route 66 is the warranty company) but it only covers powertrain (plus most times these aftermarket warranties are worthless anyway)
Anyone else had to pay out for these repairs if so what did it you?
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