Hi all,
Been having a problem with the fuel pump (or lifter pump) in the fuel tank of my Passat. Its a 2002 PD130 estate.

Has been functioning on and off for the last few weeks and now has stopped altogether (normally you can hear it pressurise when you turn ignition on). Ran a diagnostic with VCDS but returned no faults but fuel economy seems to be suffering as well.

Any idea what the best way to proceed is? Should I just try replacing it or are there any other know faults ie bad wiring in looms etc.
Checked the fuse a while back and that looked fine, you can also hear a relay click from neasr the pump when the ignition is turned on so pretty sure its getting power of some sort (unless the relay is for something else...)

Thanks