They have a design defect which allows water to get into the cabin via the moon roof. They also have an electrical motherboard under the drivers feet (comfort control module) that shorts out when it gets wet (which is easy when the rain comes in from the faulty moon roof). Now I cannot un/lock my doors, operate my windows open/closed, etc. And I believe it has negatively effected my ability for brake lights to function properly. This is a widespread issue, not just on mine. They were even class action sued for the same issue with a different year model (and settled out of court, but I was not an owner of the other car year). Please help. Thank you.

- Aubrey, TX, USA

On 6/10/2014, I drove my 2007 Audi A4 a few miles to a local business and parked. On attempting to restart the car I found that the ignition key spun in the ignition cylinder assembly. It took approximately two minutes of spinning and light pushing for key the mechanism to reengaged, and the car to restart. During the time the key was spinning it was fully engaged with the lock, but spun in-place with the engine not starting. Took car to certified Audi dealer on 6/16 for diagnosis and the recommendation to replace the ignition cylinder assembly. Contacted Audi of America on 6/30 regarding safety incident. June-14 08:15:41 pm.

- Erie, CO, USA

I purchased the car in 2013 the key was very difficult to turn in the ignition, after 3 months, it locked up one time in the garage so I just left it as it was and tried the next day. After yanking on the steering wheel and almost breaking the key in the ignition it finally started. A week later I was out shopping and it did the same thing - tow truck driver had no way of even towing the car because the wheels were cocked to the right, key would not come out of the ignition - the steering wheel was totally frozen. A mechanic came and got the wheel to move in turn allowed the car to start I had to leave the car in neutral with the key in it for weeks while we researched this issue. I called the dealer who sold me the car, they told me it was probably the ignition switch needed to be replaced - I asked them why this was not checked before they sold me the car they insisted it did not show up in the diagnostics for a certified preowned Audi I took the car to mechanic. After 7 days tearing the whole steering column out they found the wheel locking mechanism and the key/ignition switch was broken also the airbag light would not go off. After more research the mechanic found reports on the faulty, ignition switch, airbag light and the worst the wheel locking mechanisms which some people had this happen while driving causing accidents. I could not find any recall info and this cost me a lot of money, time and anguish. Audi would not even perform the diagnostic on the car without an up front cost, also the airbag light would not go off after it was taken out and put back in it must be reset with a special Audi tool and they charge for that as well. Seriously I am afraid to drive the car now because if this happens on the highway I could be dead from their lack of concern for safety my Audi is a convertible all wheel drive - should I take out a life insurance policy?

- Clearwater, FL, USA

The contact owns a 2007 Audi A4. The contact stated that the steering wheel would shake violently each time the vehicle was stopped. The dealer made six attempts to duplicate the failure. The manufacturer was aware of the failure but did not offer any assistance with repairs. The current mileage was 17,004 and the failure mileage was 9,000. Updated 02/09/12 the dealer was finally able to duplicate the problem. Also, Audi stated since the issue was not safety related, they were not going to fix it. Updated 02/13/12

- Larksville, PA, USA

While driving my 2007 Audi A4 three times over the course of the last month my car has died while driving. Once on the highway, once on a local road, and a third time in a parking lot. All three times Audi claims that "no error code was recorded" yet the check engine light and electronics error light turns on. Because they can't replicate it or see an error they are refusing to do anything to help me other than test drive the car. What evidence do they want" would me in a body bag after my car quits on the interstate again be what it takes to convince them something isn't working"

- Auburn, AL, USA