I received a surprise today when my 2012 Audi Q5 failed its smog emission test in Nevada. I've never had a car fail and is surprising for a 3 year-old Audi. I was told that it was part of the oxygen sensor and that my mixture was running too rich with higher RPMs than allowed.
The smog place also told me that if its an issue related to passing smog, there is a federal law that states that a dealership must fix the issue under warranty under 80K miles or 5 years of the car being new. Is that true? I've never heard of that and I want to be armed with information when I go into the dealership.
Is a dealer required to fix a car for free when it fails smog like this?