Unofficially, yes. Not sure whether your T5 jack will fit however. You need an old VW van or Audi side jack.

Randa.

Martina,
these points were not designed as jacking points, but many of us have used them in an emergency.
A VW camper, Blistein or Mexico/Brazil side lift jack will fit, but the arm may need extending to give a more positive and safer fit. JustKampers sometimes have them in new, imported from South America.
A better alternative is a small trolley jack, something you could easily carry if using the panel van in your picture to tow with.
A Land Rover/Coram bottle jack is what I know carry. These are short and squat. They have a good footprint and a double barrel arrangement lift. They are unusual in that they will fit under the axle, [best place to lift by] unlike many bottle jacks. They also have a U shaped cradle top. Unfortunately they are about £150 new, so use your best friends e-bay, gumtree and preloved. You should be able to pick a good one up fro about £35 if you are persistent. Make sure it comes with the handle though.

Colin