Error lights and loss of vag com coding from battery removal

This might be on the forums elsewhere, but I learned it the hard way so I thought I'd give others a heads up.

During my sub install I had the battery out for around 40 or so minutes. When I started my car up (6 or so hours later), I had a ECS error light, a yellow steering wheel light, and the TPMS light i think. Those lights as well as my vag com coding were all gone. First thing I checked was my tune access and it was still there. Was able to set it back to 93 right away. I took off and drove a few hundred feet and all of the lights went away (thank god). When I got back to the house I retested for the vag com coding and everything was back to normal. All I had to do was reset the clock.

That's normal. However, if you have the windows up/down convenience feature, you will have to go into the MFD and enable some of the options or that feature won't work properly.

Ha, I was wondering why they would go down but not back up. Thanks for the heads up!