I had to remove the battery from my 94 S500, now my door are not closing properly since the pneumatic assistance is not pulling the door IN, some of us call it Vacuum. I need info on how to reset the pneumatic assistance or vacuum. I removed the fuse, but it did not help, I also removed the battery and connected it again with no luck. any idea on reset?

 

Sounds like a vacumn leak and not a reset situation, better have a smoke test done to confirm, any good Merceces garage or dealer can do this, You have an OBD1 car and a dealer might be able to pull a fault code also.