pulley install???
Anyways, if you cant find a shop, you'll need a medium sized 3 jaw puller, a long breaker bar, a deep 24mm socket or a 24mm socket with 3" extension (preferably 1/2" drive stuff here). You break the bolt free with the breaker bar and 24mm socket, then back it out until the bolt is only in 2-3 threads worth, then install the puller. It should pull almost all the way off before you bottom out against the bolt. Mine came off by hand after that.
Putting the new pulley on is much easier...push it on a bit, start the old bold back in and use it to pull the pulley onto the crank. Torque it as hard as you can (manual says 240lbft), then remove the bolt. Put in the fresh bolt, torque to 37lbft, then turn an additional 140 degrees.
If you have a manual car, put it in 3rd or 4th gear during this. If you have an A4 you'll need to remove the inspection cover on the drivers side near the starter and wedge a screwdriver in (otherwise you'll just turn the motor during the tightening).

