i'm searching online for the driver side power window control switch unit. I found that MB updates part numbers w/ the newer models even though they say it should fit for my 2001 just fine, so the part number that i was looking for: A 203 820 01 10 isn't recognized in the MB catalog.

instead, i had to search by model & make now it's asking what the chassis range is....(A 407163 or F 299404)<-- what is the difference?

My VIN: WDBRF64J21F031386

Will the window switch control from a 2003-04 work as a replacement for my '01?

Here are the pics:
http://i11.ebayimg.com/04/i/07/e5/bb/3f_2.JPG
http://i5.ebayimg.com/02/i/07/ee/96/64_0.JPG

Thanks for your help guys!