HELP! Needed Opel Combo 2013 with 1.3 CDTI engine striking?

Hello! I’m currently living in Spain and I’m looking out for suitable cars. I’m looking for an offer in Madrid. Now the problem is that the car market is an absolute failure here and I can’t do much with a German car for various reasons (distance, financing, import, bureaucracy) But the dealer has kindly sent me quite everything. (I have received almost 50 pictures. I’m happy to submit something. I didn’t have much more of the substructure) At the moment I still lack the report of the repairs of the “serious defects” (which, according to Spanish ITV, can only be the light) Furthermore, I don’t know when the last time the chain was changed. On the pictures of the substructure, several pictures of the engine were taken. Since I’ve never bought a car myself and my mechanics experience is more important, I would be happy about the input of some screwdrivers. What exactly do I look at German business there and why I get 3 pictures of the engine? I’m attached to the post a few pictures. I’m mainly looking for the mechanical or the risk factor. I would pay for this car.