I can't speak to the 107 particulars, but if that pump oil got into the evap or any other part of the system, it's going to need to be removed. I am no expert on MB systems but as I recall from my way back US made auto aircon experience, keeping the system oil in as pure a state as possible is very important. Also, there should be no oil where none is intended.

__________________
DS
2010 CL550 - Heaven help me but it's beautiful
87 300D a labor of love
11 GLK 350 So far, so good
08 E350 4matic, Love it.
99 E320 too rusted, sold
87 260E Donated to Newgate School
www.Newgateschool.org - check it out.
12 Ford Escape, sold, forgotten
87 300D, sold, what a mistake
06 Passat 2.0T, PITA, sold

Las Vegas NV