All done and dusted for a year. (I only do 3.5k of mainly motorway miles) 6.5L of Magnatec in there and did oil filter and air filter as well.
I took a few photo's of the oil change with all the bits you need and thought of putting a basic "how to" on here but I won't bother if others think is pointless. (i.e. You either know how to do it or you get mechanic to do it or there is a Fact Sheet etc.)
I will do a quicky version.
Long story short:
(oil filter part no.) Bosch P2042 0 986 452 042-72N
19mm socket for sump drain plug
2 empty cans
2 funnels (though you can do it with 1) 1 clean and one for old oil into cans.
Big washing bowl enough for 6.5L minimum
Bin bags under bowl
Latex gloves (many pairs of thin) and ideally a thick rubber coated cloth pair.
Box of tissues to clean old filter, oil cans etc.
Warm engine...I did mine to 70C. Position bowl, undo sump nut and do not drop it, I find thin latex gloves are best for this drain oil.
PUT SUMP NUT IN SAFE PLACE Wait 10-15 mins and then I rock the Bongo side to side a bit to get the last dregs out. Then put the sump nut back in. Do not over tighten do so with a socket on a wrench and do it reasonably tight but not destroy the thread tight.
Place "Bag for life" supermarket bag at minimum or a black bin liner under where the filter is. Remove oil filter with thick rubber coated gloves watch out it can be
HOT !
Spin it fairly quick once loosened off so not too much oil comes out the spin inertia keeps most of it in so you end up with only a 1/2 cup-ish old oil on your bag that is positioned under it.
Lubricate the new oil filter rubber seal with fresh oil and the thread (I do anyway) then spin it on. It should go on easy and smooth with no force required when correctly aligned with thread. Once hand tight tighten with rubber gloves on as hard as you can hand tight without going crazy with it.
Funnel into your filler cap. Poor in your 6.5L of oil for a 2.5 Diesel with filter change. Put your filler cap back on and then run engine for a while and check under your filter and sump plug for any leakage.
Then the messy bit is transferring the old oil into old cans using the funnel and take it down the refuse disposal.
Quite an easy job.