2004 Audi A4 1.8T Fwd 4dr Sedan (1.8L 4cyl Turbo 5M)
Plastic parts used throughout the engine compartment get old, brittle, fall apart under normal engine heat. Need to take many things apart under the engine compartment to service. Plastic fuel lines kink easily and cause fuel pump failure. Exhaust system falls apart after 6 years. Glove compartment easily breaks off. New parts cost more than the car itself. Audi Stealership out to rape people overcharging $140/hr. like it was a new car. Stay away from used AUDI's and buya used Lexus, Infinity or Accura if you want a reliable used car.
I love the thought of this car, it gets good gas mileage, it's comfortable and looks nice with the top down and it's great at high speeds. What I don't like... The maintenance! It's very expensive, in just two months I had an oil leak, coolent leak, transmission speed sensor failure, a whole new ac, the gear shifter peace spilt apart, the car starts funny, etc. This car also isn't fast enough for me. I should have got the V6 Quattro but that's probably just me. I want to keep the car but on the other hand I could lease a brand new one for the same price as the maintenance on this one.
2004 Audi A4 3.0 quattro AWD 4dr Sedan (3.0L 6cyl 5A)
I've owned this car for about 3 years and have driven it personally for about a year so far(my mother was driving it before me) the interior is great looking but the material that covers the buttons is crap and supper cheap. The car handles very nicely and sounds great for a bone stock car. In terms of reliability, ive had only little things break like the glove box hinges and window regulator but WOW was it expensive-400$ for a window regulator. that includes the labor aswell. The sound system is great 10 spkrs all around and it comes with a sub built in if you get it with Bose. I've added 19in rs4 rims and man o man does it look nice. performance wise is a great cruiser but not that fast, like 0-60 7-8 ish seconds. a full tank costs about 60 and you'll be looking at 250-320 miles range. The only thing I hate about this car is the steering wheel, I cant really find a comfortable way of holding it since the stereo controls or in the sides but other than that great and car and I would consider buying another one. newer model of course.
2004 Audi A4 1.8T Avant quattro AWD 4dr Wagon (1.8L 4cyl Turbo 5A)
You really have to be passionate about owning this car. Like, to a point where fixing it as almost your priority. There is something constantly wrong with this car. Sunroof leak... ruins the headliner... also to a point where water will ruin the amp.... suspension issues with the control arm bushings not lasting, J-plug cracking and leaking coolant... and putting plastic just where it doesn't belong, window electronics crap out too. It's almost not worth the premium price brand new if you think about it. There is always something wrong with this car.
It was probably best to lease this car when it was brand new... don't get this car used... there is a reason why you don't see so many of these cars on the road.
And as far and repairing this car... parts are expensive and what crawl space do you have to work with. You have to remove so many excess things just to get to what you need.