Hi,
The video gives you a step by step tutorial how to adjust the valve clearance at your Peugeot 206. This is part of the regular service of the engine:
http://www.youtube.com/watch?v=oL3fjkN8t6E
The video has a German soundtrack, but English subtitles are added to YouTube. If you don't see them by default, watch the video directly at YouTube and press the subtitle button below the frame.
Enjoy it,
Jürgen