Just wanted to sum up this post on the replacement of the driver's side motor mount. The job was definitely easier to replace than the passenger side. (Maybe I just got lucky)

Pull the front exhaust section (4 bolts) and use extensions and a swivel socket to loosen the bolts on the motor mount. From there you need to loosen all 4 bolts on the actual bracket that's attached to the engine block and remove 3 of them in order to swivel the bracket up and remove/install the new mount. Piece of cake! Total time is approx: 1 hour to 1.5 hours.

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1995 E420
1998 SL500 Sport
2009 E350 Sport
1995 S500 Coupe
1992 500 SEL