Hello people. I’m new here, so I hope I’m ok to ask etiquette-wise. I would just like some feedback on whether this is a normal level of corrosion on a 13 month old car? I bought it last month (Citroen C4 still under warranty). Dad says he checked the engine and it was fine before we bought, however the check was pretty hurried - now I’ve looked myself I’m not so sure. Is it normal, or is it something i need to take it back for the dealer to address?