Originally Posted by toomany MBZ

Yeah, make sure you have the correct size belts, you may want to take the old ones in and measure them.
The biggest problem I had was seriously over tightened bolts, that where I bent the ratchet, alternator mount on the SD.
The A/C unit has, I believe, a 19mm bolt accessed from under the car, I had it up on jack stands, and with all the torque I could muster, the rest of my body was sliding around on the ground, I couldn't budge it. Took it to a shop where they got it up on a lift and used a cheater bar. That was the CD.