I mean just release the gas and it starts to glide with propably clutch pressed down but anyway you dont need to do anything else. On the economy race I will use it all the time because its very easy.
This was told me by fellow Lupo 3L owner who got scangauge working on his lupo:
http://www.youtube.com/user/arturasz.../4/yea2TN9qyf4
His car is also 2000 model but mine does not work on my Lupo 2L. Now I ordered VAG-com to do the job.