SORRY, I must reply in English  

 :
I have made some improvements to Playmobil 4124 Panorama Express wagon:
1) The plastic Playmobil wheels are replaced by LILIPUT L999304 metal wheels. The metal wheels are more solid, getting less dirty than plastic wheels and have a larger lifespan. Because of the weight of the metal wheels the center point of gravity is lower, giving the car better riding qualities. If you have plastic Playmobil rails I advice you not to do this. The plastic rails will worn out sooner because of the metal wheels.
2) On one end of the Panorama Express wagon I've put end signals. These are stickers from LGB, and available as spare part. Contact your local LGB dealer.
3) All seats are now occupied by Playmobil people. That's the way to earn money as a railway company!