Hello again,
It really isn't necessary to remove the plugs, but it may make turning the engine by hand easier. Other than that, you don't need to remove them at all. Remove the coolant reservoir from the bracket and unplug the level sensor. Set it atop the engine first. Then it will be much, much easier to remove the auxillary belt and timing belt. As I'm sure you know, just make sure that the marks realign and that the tension is correct when you're done and you have nothing to worry about.
Joe S. - Volvo Master Technician
2000 S70 AWD, 1995 850 Turbo, 1981 242 Turbo w/intercooler
P.S. - Have you ever had the auxillary belt off before? You'll need a 3/4" square drive (if you don't already have one).
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