Beeping sound and flashing brake light

Hello
u will find a lot of wiring diagrams and circuit diagrams help books and stuff like this at reliable-store
the girl in the chat box can help u instantly... im a frequent buyer there since Im a mechanic so take help from there

think its a computer system issue-its all connectd these days-even with the steering--disconnect batt then put it back after a minute-may clear up--------if not pull plug at computer clean it and replug a few times-----these reboots at times work------but u mite need to run a thuro diagnostic to see different voltages-go to a good mechanic not a dealer--a hand held scanner will not do this

check and be sure park brakes are disabled and sometimes if you're park on a hill will make it hard to shift.

you will have to have someone scan the abs computer to pull the error codes.. this is the only way to know what ares is at fault

The brake switch that is located just above the brake pedal is either out of adjustment and button is stuck on and you just need to move it around and put back in place. or the switch is faulty and needs to be replaced.

Brake light switch dislodged on pedal or broken / stuck in

Your brakes may be overadjusted on the rear.

you prob need a new abs sensor

When is the last time you got an oil change? Did they reset the system? The light may be trying to let you know you know you need an oil change,

Do you get a flashing ABS light or BRAKE light along with the beeps? If so, this is indicative of an ABS failure, which is either a wheel speed sensor or (much more likely) the ABS controller. I've had an ABS/wheel speed sensor fail on my A4 and I had no beeping, but people I know have had the beeps and had to replace or rebuild the ABS module. If you do have this problem, go to www.modulemaster.com and call them - they can rebuild the ABS module for a couple hundred dollars give or take, versus several times that cost for a new one.

If you are only getting the beeping, but not the lights flashing, it could still indicate this failure, but Audi usually has the cars set up to indicate what is wrong by flashing lights as well as the beeping, to help you see what the problem is.