Purchase advice 508 2017

Good morning everyone together and happy Easter! I hope I’m helped here. Although the following is the case. I’m currently driving a c-class 2008 switch kombi and now something new should come. I really shot myself into the following vehicle, but I don’t want to buy anything with pink red glasses and then possibly regret it. It’s here: Just found at #eBay Kleinanzeigen. How do you like this?https://www.ebay-kleinanzeigen.de/…/2078229371-216-0878?… but become a diesel. Hope you can still say something… What should I know about “illness” or something like that? I would really like constructive advice. Thank you!