Augh!!!!!

What a nightmare. I didn't need any special Benz tools. I did need my compressor to remove the bolt that secures the pulley to the crankshaft. And my gear puller to get the pulley off.

Unfortunately the AC bracket blocks the front cover, so it will have to come off. It is a TOTAL mother. The real challenge is getting to the bolts hidden by the oil lines. If I recall, I had to use a piece of an allen key and wrench to get underneath the intake manifold to remove the clamps holding the oil lines to the block that obstructed access to the rear bolts. And the manifold blocks access to the allen bolts! A COMPLETELY SCREWED DESIGN!!! I think that alone took me a few hours.

I guess you learned a lesson, next time stuff several rags down those holes so the pieces don't get away from you.

While your in there you can get a good look at your rails and sprockets and see if they need replacing. I used the factory sealer on the front cover. It worked pretty well, but I see it starting to seep a tiny bit. Use a good quality sealer.

Drop a line if you need some more sympathy or advise.

Tinker