2012 LW Mk1 2 litre diesel oil filter

[karioi]

I have always done my own servicing (petrol cars only) and this year I bought the wife a 2012 LW diesel (german made). She has done 15000 since it was last serviced and I need to change the oil and filter.
I have bought 10 litres of the recommended oil and the cartridge filter.
My question is "Where is the oil filter located". I have looked everywhere from above and can't see it. I can't find on YouTube any video showing a LW filter change. YouTube is a great source of info, not this time.
also
a. Do you access the filter from above or under the car.
b. What other parts do you have to remove to access it.

Any pics as well would be most appreciated.