Hi guys, My first post on this forum and I would love if it if you guys could help me out here. Since I have owned my 1998 fiesta mk4 (1.3 petrol OHV) the temperature gauge has never worked and I have finally decided to so something about it, the only problem is I cant find the sender unit...

I need to replace the fuel pump / sender unit on a 51 plate Mondeo. How do I disconnect the fuel lines from the fuel pump/sender unit? I cannot seem to depress the 3 lugs that hold the connector in place. Is the a special tool can I get one can it be done without? The main reason for the info...