Skip the auto shop - Our mechanics make house calls

Q: Failing fuses, dashboard warnings all present - 2012 Audi A7 Quattro

asked by on

My air conditioner quit working in my A7. It wasn’t blowing out any cold air. So I decided to check the fuses. I took them all out to check them, then put them all back in. This caused the computer system to go crazy! My power steering quit working. The speedometer quit working. The driver door controls quit working, and it seems like all the warning lights are on. Do you know what I did to cause all of this and how I can fix it? I hope it’s not too hard to do.

Your Audi utilizes an electrical power distribution system which is more computer network like, than older point-to-point wiring systems. There are electrical controllers at key locations in the vehicle (front or back) which distribute power to components located close by, rather than route power all over the vehicle. It is possible that one or more of these systems has not "power-on-reset" correctly, or has been damaged. I would have an Audi electronics-trained professional check out your vehicle.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  • Home
  • Questions
  • Failing fuses, dashboard warnings all present - 2012 Audi A7 Quattro

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: MMI oil level indicator doesn't work correctly

Hello. Thanks for writing in about your A5 Quattro. You need to go into test mode for the computer to reset and test the oil level. If it still cannot calculate it, then you have a bad oil level sensor...

Q: USB port in armrest compartment not working

Having a failing or non-working USB port in your Infinity is actually a problem I have seen in many vehicles throughout my years. In most of those cases what I recommend first is plugging in a different USB cord and...

Q: door lock malfunction has occurred.

The body control module (BCM) can be replaced, but you will need to have it flashed (programmed) to match the VIN number on your vehicle. The dealership or manufacture are authorized to flash the new BCM. If you need further...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...