Power door locks
I assume just assume you just do not know much about cars. The 'lock nub' you refer to just activates the power door locks. I wanted to know the location of the actuator that controls the central locking system. If you were trying to make a joke do not quit your day job.
CML55
for diagram
http://www.performanceproducts4benz....s.aspx?bmid=72
for parts autohausaz.com



