Team I Need Your Help

This Saturday I'm going to look at a 2010 Citroen C-Crosser. It has ~171k miles, the current owner has had it since 2020 and they have it listed for £2200. They don't have the full service history. MOT expires in September 2026 and it had 0 advisories. I've done oil changes and light/moderate maintenance on my 2010 Chevy Traverse and my wife's 2012 Kia Optima when we were back in the States. However, this would be my first diesel, if purchased, I've ever owned or had to work on. I've already done a bit of research about the vehicle like what to look for, check, and ask. Please tell me everything you think I need to know and look for!

Also to note my daily commute one way will be 9 miles. So I know I will need to take it for a bit of a longer drive 3-4 times a month.

Thanks in advance!