I have been reading threads related to this topic but none of them answer this problem as it relates to ECOdiesels. The AC compressor and Alternator do not use the gear toothed bolts used on gas engines and non-turbodiesels. The Compressor tensioner are adjusted with a 13mm combination wrench. You loosen a clamping bolt, then tighten the tensioner bolt, then tighten the clamping bolt to hold the tension. Next, you loosen a 17mm clamping bolt on a tensioner pulley for the Alternator, tighten the 13mm tensioning bolt which pulls the pulley toward the front of the car, thus tensioning the belt, then tightening the 17mm clamping bolt on the pulley to hold the tension.
Removing the compressor is much more of a problem in these vehicles. The bracket that holds the AC compressor tensioner also supports the power steering pump. There is no clean way to reinstall the Alternator. I'm guessing one would have to get the brackets from a non-AC Jetta diesel with power steering (does such a thing exist?) and swap them in along with the longer pulley so the belt lines up to it.
Anyone have a simpler solution? If all else fails, I will remove the injection pump, pull the AC support bracket off the engine block (two bolts are behind the inj. pump!), and drill a 7/16" hole throught the threaded holes in the bracket where the two allen head bolts use to reside. I will use a long 7/16" bolt and run it all the way through the holes to hold the compressor and use a nut with nylon insert to support the compressor.
Thanks! TEMiller