Well, as with all things in life, don"t get too comfortable or smug. After spending some time changing out rotors and calipers all the way around, I was getting ready to take the old girl out for a spin but I noticed a bit of the edge of the V belt laying in the engine compartment. Sure enough, it's coming apart and needs replacing. Why not get a new tensioner and pully while I'm at it, right? With all of the repair documentation I can find, there is no mention of having to remove the radiator to do this job (except on the 603.96 Turbo engine where radiator removal is indicated. I have the 603.970 engine). Looking at the work space between the radiator and the fan, it seems pretty difficult to do this without removing the radiator. Does anyone have any experience with this? I've looked all over the W126 forum and can't find this particular job referenced in any detail. Is removing the radiator the best bet to change out the belt, tensioner and tensioner pulley? Thanks in advance for your input.