I had my Gen 2 2014 Q7 emissions upgrade scheduled to be completed on the first day according to Audi site 11/6/17. It was scheduled for 7:00 am. When arriving at the dealer they told me they couldn't complete it because the mechanics and supervisors were all in training and they would get to it late in the afternoon. On the 7th they called and told me it was done. On my way to pick it up I received another call saying it wasn't done and do I have my CLAIM number. They need the claim number to down load the fix for your specific car. That wasn't in the training!. when I got to the dealer they told me they had good news and bad. The good was the car was done, the bad was the car was quarantined until the EPA approved my specific repair results (2-3 days). while driving home in my loaner they called and said my car was now approved?? UNREAL!!! I went back and retrieved my COMPLIANT 2014 Q7TDI . The mechanic told me the ADBLUE was topped off and I will notice a slightly louder diesel sound and no more than 1 mpg loss in efficiency. I had a trip planned to the Midwest for the holiday's so I left Florida the next morning. when I crossed into GA my ADBLUE warning light went off and said I had 500 miles left. I called the dealer and they said bring it in immediately. I told them the closest dealer was in Atlanta (367 miles) from where I was located. I made to Atlanta and they looked at it for 2 hours and determined that the ADBLUE pump from the big tank to the small tank was bad but did not have the parts. They topped off the tank and said I would be good to drive it to the Midwest??? I did exactly that and arrived in OMAHA. The dealer there spent another 4 hours trying to fiqure it out since the Atlanta guys cleared all the codes. Needed a new pump just like I told them. Had to order it. 2days late I have my vehicle back and working. It is slightly louder. It accelerates much better but I am getting almost 4.5 mpg less than before. I averaged 28 mpg trailerin a boat 4000 miles this summer and now with no boat I just drove 1400 miles and got 23.5 mpg. Maybe it will get better with a new ADBLUE pump. I doubt it! Anyway I was told mine was officially the first one completed on the East coast. I hope everyone else has a better experience.
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