The result of the pipe mess up was that the automatic transmission couldn't go into 4th gear.
I looked on the net but couldn't find easy to follow vacuum pipe layouts, so i drew one after they fixed it:
|top view of engine|
For non-hebrew users - the middle is the engine (on the engine right side is the vacuum pump). The most right side has the air filter. bottom right is the turbo unit which is behind the engine - you will have to shove your hand all the way behind the engine near the bottom to re-fit that tube if it gets loose.
here more pictures of the layout:
keywords: skoda oktavia octavia mk 2 vacuum pipes סקודה אוקטביה צינורות ואקום