Ups, my fault! You are right.
Maybe, it is simply the dozer.mdl, because the shading of the original model looks more wired to me than the merged model.
Is it possible, that the vertices that are split in the original are melted in the merged one?
In the code I have to write different vertices to get the different vertices of the uvs, where do I put the information that they are split in the 3d as well?
