How do I reset the service light on my 2002 Audi A2?

I recently had my car serviced and the service light is still on. How can I reset it without going to a mechanic?

To reset the service light, you will need to enter the car's diagnostic mode. This can be done by turning the key to the ON position and simultaneously pressing the odometer reset button. Release the button and turn the key to the OFF position. Then, turn the key back to the ON position and press and hold the same button until the service light blinks and resets.

If the above method doesn't work, try disconnecting the battery for a few minutes and then reconnecting it. This should reset the service light and resolve the issue.