I have a 2001 C240 and I am still having a problem with the remote. The average distance that my remote get is about 5 to 10 feet . I did have the rear window replaced after someone broke my window. The window was not installed by MB however I did confirm that the window in OEM. A recent tech bulletin said that the grounding of the rear window will cause this problem. Does anyone know where to check to see if the window is grounded properly.