I purchase my A4 2.0T quattro new in 2006. Since then I have driven the car 167,588 miles. I have spent $5,800 so far in maint & repairs including tires. I have followed the maint schedule to the letter except for oil changes. I do the oil & filter every 5000 miles. The car still consistently gets 30-32 MPG. It still has the original shocks and exhaust. it will need it's second timing belt at 190,000. The timing belt is a maitenance item. Handling in the snow is effortless and safe. I am curious as to why so many bad reviews. Maybe the cars were not maintained properly from the start or abused. The bi-zeon lights had been troublesome but the dealer & Audi took care of the issue.
Many people complain about expensive maintenance. If you are like me and do your own maintenance, there is very little you have to do or pay. I have an OBD II computer that I use whenever the check engine light comes on (not often). I bought it with 55,000 miles on it, it now has 87,000. I've had to replace a coil pack (easy fix, $37 and 1 hour of my own labor), divertor valve ($150, 2 hours labor), and that is all. To change your oil, it is handy if you have the Audi tool ($100) for cartridge style oil filters (you'll have a mess if you don't), but you can make your own pretty easily out of a hose and the right diameter bottle. The car drives absolutely beautifully, couldn't be happier.
I purchased my 06 A4 BRAND NEW. Within 6 months it had to be towed...not once but twice for ignition coil failure. One time I was crossing over a large bridge and the car was chugging the second time I was stuck and the car wouldn't start. It was down hill from there. Oil leaks breather valve went, and a host of other issues. Cost me a fortune (high mileage). I don't appreciate ppl saying things about not taking care of the car. My car was beyond taken care of and it was still in service all the time. STAY AWAY. They will NOT help you or admit theres an issue even though they are aware of all these issues. I traded it in for a honda, and can guarantee it will be more reliable!!
Original purchaser, just over 5 years with not quite 60k km's/37k mi on it, all easy miles.
All maintenance done by Audi per recommended schedule.
Great car to drive, but expensive to maintain once OoW.
Low oil pressure light/check engine light 1 month out of warranty.
Known issue with oil starvation due to sludge requires a complete engine replacement - $12k.
Dealer went to bat for me and Audi's covering a portion, but even so, it's more than I spent on my last 2 Ford's with twice the mileage.
Clicking noises come from dash when cold due to known issues with actuators.
Audi won't cover even though reported under warranty.
Even basic service is 2X my Ford/Honda.
For all of you that said that if you don't take care of your car then of course you can expect problems, seriously, you should just be sooooo lucky that you go one of the few NON-LEMONS. I have kept my car in mint condition and I have had the ignition coils replaced 5 times! The altenator, crankshaft, Electronic Control Module, Purge Valve, and the transmission is failing. It is now at audi with an estimated repair of 4,500. I bought the car in 2009 and almost instantly had mechanical problems and I bought it as a certified pre-owned. The thing that makes me the most mad is that they are known recalls but will only cover them the first go around. Be ready to fix them over and over.