How do you reset the oil service switch on your 1999 VW Passat TDI Estate?

To reset the oil service switch on a 1999 VW Passat TDI Estate, first turn the ignition key to the “On” position without starting the engine. Press the gas pedal all the way down three times within 10 seconds. After doing this, turn off the ignition, and the oil service light should be reset. If it doesn’t reset, repeat the steps.