Hi
Thanks for all your replies.
It is one of the REAR springs that is broken. Unfortunately it is the main spring leaf ( the one mounted to the frame ) and it broke on both sides of the axle.
Please don't ask how. It is a long story!
The car itself weighs 1900kg empty. We are on a long journey until the end of the year. There fore we have loaded a lot. Rooftent, equipment, clothes, tools, spare parts ( no spare spring ). All together it may be 2300 kg, not really 2500.
( and in germany you can't load as much as you want! Maximum load for the car is 2600kg )
The springs where okay when we started but they are 34 years old and our 6000 kilometers journey made them pretty weak.
We are now staying in Krasnoyarsk near "Парк культуры и отдыха имени".
We are planning to travel further to Irkutsk, Baikal, then to Mongolia and Kasachstan as soon as the springs are replaced.
We try to check out 4x4safari today for some "Tough Dog" springs and then try to find a workshop.
I could also put the springs into the car myself if someone can recommend a self service workshop.
Regards
Karsten