How to remove coolant temperature sensor? on 2001 Mercedes-Benz S500

i need to replace the coolant temperature sensor but don't know how to remove it.

Asked by for the 2001 Mercedes-Benz S500
engine cool condition. drain rad fluid or block coolant and save, remove 2 pin connector and unscrew,replace with identical replacement sw and hookup connector, refill coolant using strainer, start and allow engine to reach nrtemp or to 195f chk for leaks relace cover/s.