general problems of the 2007 Audi A4

Seven problems related to electrical system have been reported for the 2007 Audi A4. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 Audi A4 based on all problems reported for the 2007 A4.

1 Electrical System problem

Failure Date: 06/01/2021

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.

2 Electrical System problem

Failure Date: 05/15/2021

The moonroof was very poorly designed/built. It clogs very easily and forces rain into the battery area. Other than that, it goes into the footwells and the comfort control module is beneath the drivers footwell. Soaking in water destroyed it. Now the windows don't go up or down. The moonroof refuses to open or shut. The car will not lock or unlock with the key. The car has sat now for too long and will no longer even turn on. The insurance company looked it all over and denied my claim. The vehicle has pretty much been totalled. Even after paying professionals to clear out the clog, there's still massive problems with it.

3 Electrical System problem

Failure Date: 07/27/2017

Oil leaks and electric malfucntions and engine oil leaks. . . Lots of oil leaks even after repairs.

4 Electrical System problem

Failure Date: 10/01/2016

So I opened up the sunroof, took a long wire and started poking. I also removed the wheel arch and cleaned out the outlet. I poured a bucket of water thru and it came out of the bottom nicely. All well I thought. Today it rained for the first time since then, and I was very unpleasantly surprised to feel waterdrops dripping from the hood opening grip next to my feet. Since my car is always outside and not covered against the rain, I had to deal with it right away. I stripped the a pillar cover and saw it had serious water marks. Obviously the water had been dripping slowly for many months already. It just never got worse enough as you can see in the picture the green hose is the drain, and it has a brown stripe down the bottom from long time dripping. The leak seemed to come from all the way up to where it is connected to the sunroof drain pipe. I pulled it loose and the hose is fitted to the pipe with soft plastic connector. The connector slides over the pipe, but the hose is glued to it. Now the glue is exactly what caused the problem! the glue had gotten brittle and had cracked, it seems like Audi used the wrong glue for this hose. I cleaned it , glued it back together and poured another bucket of water thru, but now while the lining was still open and the hose fully exposed. No drip at all! I must say, this problem was a very nasty one, it really bugged me very much to get water in the car, especially because it can do so much damage. Attached is a picture where you see the roof airbag which was totally wet also. A picture where you see the green hose with the drip marks, and a picture which shows the left side of the dashboard with the fuse box exposed, if you look closely, you see the steel is rusted, since the sunroof water draining is a very wide spread q7 problem I would advise all owners to check the fuse box.

5 Electrical System problem

Failure Date: 06/10/2014

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. Jun-14 08:15:41 pm.

6 Electrical System problem

Failure Date: 07/16/2010

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?.

7 Electrical System problem

Failure Date: 07/16/2009

When driving my car has what is and should be a recall with the given number of complaints regarding this issue of "right or left dipped headlight. " Audi of America is quite aware but this is not just any recall this is a safety concern and like windshield and airbags should be looked into quite seriously.


Other Electrical System related problems of the 2007 Audi A4



Safety Ratings of A4 Cars
Fuel Economy of A4 Vehicles
A4 Service Bulletins
A4 Safety Recalls
A4 Defect Investigations