MMI system worked during test drive and then NOT worked after final sale: Safety systems included: The Multi Media Interface (MMI) system is an in-car user interface media system developed by Audi, and was launched at the 2001 Frankfurt Motor Show. MMI operates a large number of in car entertainment components, car electronics, and other functions. The list below indicates systems controllable by MMI. However, depending on the car model, along with version specified, only some functions will be available. Satellite navigation Radio tuner Media sources Telephone HVAC, climate control Car setup (e.g. central locking), global audio settings, suspension settings Rear view camera and parking sensors Driver information (e.g. fuel economy-??) User manual Apple CarPlay 2014 and later model.

- Fredericksburg , VA, USA

Turn signal switch malfunction. When turning right turn direction on, the left turn goes on instead of the right turn. After researching the issue, it looks like it-??s a common issue with Audi. This is a safety issue and need to be recalled asap.

- Orlando, FL, USA

The battery failed/malfunctioned and was leaking hydrogen sulfide gas into my car slowly for a long period of time. A month or two after I initially financed this used Audi A4 at Volkswagon in Dothan, AL, I started experiencing the side effects of low dose exposure to hydrogen sulfide gas. From that point until today my symptoms have been getting worse and worse. My asthma symptoms progressed. I caught walking pneumonia several times. My hair has been falling out in clumps and my kindneys are having serious issues. My pee started smelling very strange. Consistently, over the past year and a half, I have nearly passed out at the wheel of my car over and over. For a very long time, the gas was odorless and really couldn't be detected by smell. Five days ago I went to start my car and it wouldn't crank. I jumped it off and for the next five days following that the smell of rotten eggs got worse and worse....I'm lying in the bed right now bc my lungs feel like they're going to explode. I've felt this, along with my heart feeling like it was going to explode put of my chest, as well as my entire stomach/intestines feeling as if someone were stabbing me with knives. My doctors could not figure out why all of my hair was falling out or why I started to develop peripheral neuropathy. They even ran tests on me for Multiple Schlerosis. Found nothing. They did electrical pulse tests and cat scans and my dermatologist had no explanation for my hair just falling off my head in handfuls. I have a third of the hair on my head that I used to have. My skin and eyes consistently kept getting irritated by the gas as well....splotchy red exema like patches appeared all over me. I had a miscarriage because of this as well. I couldn't afford to get the car looked at, so it hasn't been taken anywhere. I received no warning of the problem until two days ago when my lights in my car and the air conditioner stopped working. The year of my life had been a living hell.

- Headland, AL, USA