Hello, if it is Diesel, that this model I do not know, it is likely that it is the EGR valve, which is grabbed, I pass to my clio, if it is this, good news and bad news, the good is that you can clean it or cancel it, very carefully since if it cancels bad it will be worse, and the bad is that until you erase the failure of the memory will continue to indicate it to you. Usually people do not have a strip at home, you need a workshop, it is not necessary official but trustworthy, and who possess the happy computer.
The belt, a contact is most likely, looks under the seat with care, and continuity tests between contacts if it fails, as simple as cutting and welding, not doing strange things, taging is very simple and we take away from fatter problems.
I don't know if it will serve you but less is nothing. greetings