How to remove front headlights and casing on an Audi A6?

Can anyone please tell me how i remove the glass on the front headlights to clean the inside of them on an Audi A6 1999 please.|||head lights are sealed, you cannot separate. Headlamp stone guards should simply clip of them. You may need to fiddle them a bit to remove them.|||Look online for "Audi A6'1999 user manual" and find the section that explains how to perform the tasks you want. If unsure, contact Audia and ask them via their website.