How can I troubleshoot a malfunctioning Audi A2 accelerator pedal?

I've noticed that my Audi A2's accelerator pedal is not responding properly, often getting stuck in one position or not working at all. What could be causing this issue and what steps can I take to diagnose and fix it?

First, check for any debris or obstructions in the pedal's hinge mechanism. If everything looks clear, try lubricating the pedal's moving parts with a dry Teflon spray. This can often solve the issue.

If the issue persists, it's possible that the pedal's sensor has become faulty or damaged. In this case, it's best to take your car to a certified Audi technician for a thorough inspection and potential replacement of the sensor.

Another possible cause could be a faulty throttle body, which may require cleaning or replacement. This is a more complex job, so it's best to seek professional help if you suspect this may be the issue.