What part is this?

[mairenag202]

I drive a 1995 C280. Lately the transmission has been running brutally so I decided to park it til I find the problem. When checking under the car I found that this yellow mechanism thats connected to the transmission fluid pan was sealed using some silicon/glue by the past owner or what ever shop he went to. Does anyone know what this yellow mechanism is and what it does?

[RemoLexi]

Nuetral safety switch. It keeps you from starting your car in gear other then Park or Neutral.

[taz069]

maybe this will help, not for sure what brutal is to you but if it is shifting like a race car here is what i found on mine. I drive a 96 c-280 one day it started shifting at higher rpm and slamming into all gears. I found on the driver side their is a small vacuum line that the trans recieves vacuum from the engine. A little mouse had taken the privalage of chewing a hole in the line. Upon replacing it the car started shifting fine again. Just a thought.