 Bought an A4 2004 with extended warranty. Made a maintanence checkup with Keys Audi in Los Angeles. Told me i had to wait 2 weeks. i origanlly had a bad vibration problem to seek the appt anyway. 2 weeks latwer at 103,000 mile son car they would not honor the 100,00 warranty. AND would not honor the extended warranty. I called Audi America and bitc$$! Made them honor the extended warranty. Only got an oil change and tire rotation( SCREWED) OK THEN i asked them what was the vibration,THEY TOLD ME...Motor Mounts. Wanted 2k from the dealer to fix. I went to local mech for $800. Replaced them vibration was still there. 3 days later ENGINE BLEW! Due to timing chain fail.Called them,did nothing