This is a very easy fix. The sensor is on the back of the engine, drivers side, just above the bell housing. One E10(?) torx bolt. Depress the connector latch on the top, passenger side, of the connector and pull it off. With a 10" or 12" extension you can reach the torx bolt and undo it. Dont drop it! Then just pull the sensor out, slide in the new one and put the bolt back in and reconnect the cable. I'll have to look up the P/N.

edit: Napa part number is CSS9028. This is the same sensor, just dosent have the MB star on it, and cheaper.