what causes beeping noise on 2000 Audi A4 Quattro

3 beep tones

Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
2 answers
This is somewhat vague. Does it beep when you turn your key to position II or III. Does it beep if you plug your seat belt in?

The only time my car beeps is when I turn the car on and I don't plug my driver side seat belt in.
Under what condition(s)/times does this three beep occur? Do you possibly have an owners manual to reference?