2007 Audi Q7: battery drain or dead battery

Filed Jul 20, 2023 · Electrical, Fuel system · WA

This started happening in the last 2 mos. My MMI started acting up, it first displayed radio not installed, then it would stall and not show anything on screen, then it came back on to regular showing but then went out again and displaying radio not installed. Then at one point I was able to play my CDs but not my radio. Then finally the complete system went out, now the screen only shows the MMI logo and will not turn on and cant not be reset. So as this has happen, my fuel tank area started to drips tiny drops of gas only happens when I drove it, so now it is leaking even more fuel so I have it sitting in drive way until I get it into the shop. While its been sitting in the drive way for the last 2 weeks, I would occasionally start it but this last time I started it my battery went dead and it started leaking even more gas after I got it jumped. As long as it is not on it does not leak gas.

Filed Dec 22, 2017 · Electrical · NJ

My audi q7 has a leak from the sunroof, which damaged the bose amp, because of that, the radio, backup camera, the whole mmi system is not working. Also for that reason the battery is not holding energy, the amp is draining the battery. This is an factory issue, I took the car to the dealer and was told it will cost over $4,000 to fix it. Audi of america should do a recall for this issue, water getting in contact with the electrical part of the car is a big hazard, it can start a fire or other parts of the electric system could malfunction, and could eventually lead to an accident. I'm not sure if this water leak damage the passenger airbag but I also getting a light for the airbag on the cluster.

Filed May 23, 2016 · Electrical · NY

Electoral battery drain issue , water leak in the electric from sun-roof ,

Filed Jan 1, 2016 · Electrical · 64,000 miles · CA

Electrical issue due to the faulty sunroof water drain hoses(connection for hoses). Like all (all) audi q7 owners I have encouraged problems with my complete electrical system in the car. Water leaked from sunroof down to most electrical components in the car which are hidden behind upholstery. Audi is full of electronics including safety systems in the car. My mmi system died due to amplifier getting wet. After mmi, battery drained out after just 7 hours that car has been sitting in the parking lot. All dealerships know about this and audi is still ripping off all the q7 owners on this issue. Too bad is that in long run they will lose a lot of customers.full repair of sunroof hoses and replacement of audi amplifier which is first part that gets affected from water costed me almost $4000. Not to mention that I still stains from water on my roof liner. I contacted audi of america and they will not admit fault, want me to go to dealership and pay again for inspection. Yeah. Good luck. I will never see audi dealership again and never buy another audi.

Filed Dec 8, 2014 · Body, Electrical · NC

The mom screen went out. Which short out the amp and drains the battery.the mms system control the heat air . Radio, nav. Car setup. Telephone . And information center. . It will cost 2200.00 to replace a amp and not fix the problem. The water will back up and drain out onto the floor, which may cause electrical problems, audi should replace this or fix this problem due to its seem its happening to all their cars with sunroofs.

Filed Oct 10, 2014 · Electrical · 90,000 miles · MI

All the mms screen went out . The dealer stated it come from the sunroof draining system . Which short out the amp and drains the battery.the mms system control the heat air . Radio, nav. Car setup. Telephone . And information center. . Now why would somebody want 2200.00 to replace a amp and not fix the problem,.this is the dealer am talking about. Its a problem on all audi vehicle that have sunroofs.