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A couple of hours or less, if your wrists are flexible and your fingers are sensitive. Firstly undo the 6mm stud holding the heater pipe by undoing it with 2 nuts jammed together. Catch the spacer that's between the pipes and the plenum. Undo everything around the throttle body.
The removal of the plenum top isn't that hard but first you need to undo and remove the two top bolts from the coil pack bracket. A 7mm 1/4" drive socket, 6" extension and ratchet will allow you to reach and remove these. Next move, which is a little more difficult, is to loosen the two lower coil pack bracket bolts by only 3 turns. Again with the 7mm socket but you need two extensions to reach them as they are low down. Once they are loosened the last bolt holding the plenum top can be undone. Don't forget the one low down on the front of the plenum centre line either. Once the plenum top is off you can remove the two 7mm headed bolts and do the coil pack swap.
Reinstallation requires you to put these two lower bolts in but leave them loose enough so that the bracket can be swung forwards and backwards. Make absolutely sure the connector plugs are securely clicked onto the coil packs, as they will otherwise jump off. Once the plenum is reinstalled fit the two upper 7mm headed bolts and tighten all four.
Good luck!
Originally Posted by PeterH
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