Exhaust back pressure sensor

[Brimjim]

Hi all can I get help with the removal of exhaust back pressure sensor on b class 180 diesel I would like to know how to remove the electric plug socket for me to undo sensor

 

[Brimjim]

Hi all can I get help with the removal of exhaust back pressure sensor on b class 180 diesel I would like to know how to remove the electrical plug socket for me to undo sensor

 

[Brimjim]

Electrical connector whats plugged into sensor please