Bluetec fuel pump

Hello, why are you seeking information on this? Also, if you're asking a question like this -- you're way overmatched for the job. If you feel like taking it on, you'll need to obtain both a workshop repair manual and wiring diagram for the vehicle, and have proper tooling. This is something you'll have to obtain on your own. This site can't help you with repair instructions or part replacement processes. Further, I would caution you on even thinking to replace this part, as it quite likely could be working just fine. What is the problem you are having?