I was trying to remove the windshield wiper motor and accidentally broke the plastic tube (first picture below). I am not sure what is the function of that tube. Can anyone please let me know what is that tube used for so I can try to buy replacement. Thank you very much.

 

I would suggest that you get a free subscription to MB EPC which with your repeat your search will help define the part correctly

 

I could be wrong, but i think this line for center A/C vents, which control the temp. of evaporator..!!

ZAYED,,

 

I'm not sure of the function but you can just cut the fitting off and splice the two lines together with some vacuum hose.

 

VinceC, your solution worked perfectly. Thank you very much.