Corey,
To my knowledge, there should be a very little amount of play in the first few degrees of travel with the gas pedal. Is yours worse than this? You should *try* and lube yours too. The gas pedal does go down easier and it's a nice feeling... don't ask why!? And if you figure out how to take off the washer reservoir, I'd appreciate it! I know there's one clip towards the back of the reservoir at the top... but I couldn't find anything else holding it down, though it was still held in place.

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2006 E350 w/ 155k miles (Daily Driver)

Previous:
1993 300E 3.2L Sedan w/ close to about 300k miles
2003 E500 Brilliant Silver (Had 217k miles when totalled!)
1989 300E with 289,000 miles (had for <1 yr while in HI)
03 CLK 500 cabrio (Mom's)
2006 C230k (Dad's)
1999 S420 (Mom's/Dad's)
2000 C230k Sport sedans
2001 CLK320 Cabrio (Mom's)
1995 C280 My First Mercedes-Benz... (155k miles. EXCEPTIONAL AUTOMOBILE. Was Very hard to let go of!)