I think you may find some useful help in this thread - or at least a lead:
http://www.benzworld.org/forums/w163-m-class/1311205-ml500-2002-passenger-mirror-gap.html

 

The wife has been using the ML recently and backed up into a fence post, which cracked the outside of the drivers mirror.
Ordered the part from M/B on Sat., & expect to have it tomorrow.

I haven't looked at it yet, but does anyone have some tips for changing out that piece?



Brett

You will find it here Logon

 

I did the same to mine! just this morning. I have a 00 ML430. Can you tell me how much the part costs? thanks!