I have seen four 3.2 coil packs with some quite serious damage caused by removing with a blunt object such as a screw driver to lever them out. This is unnecessary and in some case quite expensive if the damage is bad enough, in one case replacement was necessary.
These pics where taken in the course of fitting new cam cover gaskets and o rings.
Unplug the electrical connector at the rear, then...
Close up shot shows the coil PAC bolt (smaller thread in hand) removed to reveal a thread in the brass insert put there by Mr. Bosch to aid removal. The smaller threaded bolt passes through this and unscrews from the head, then place a larger bolt into the brass thread, the ones from the plenum are the correct size if needed.
Screw bolts in like so
Pic below shows the general idea, pull on the bolts with both hands. I'm only using one hand as the other is holding the camera.
They can be very stiff to remove and some wiggling and rocking side to side while pulling may be necessary. Expect them to fly out suddenly so brace yourself and place a rag over anything solid above them like the fuel line unions on the inlet etc.(not shown)
2,4,6 bank is made a bit easier with the limited access of the cable tray which can be pulled aside with a bungee cord to bonnet stay.