The E46 fitted with the M47N engine has 3 fuel pumps: In tank Intermediate, under the floor under the left-hand side front seat High pressure, on the engine I've replaced the fuel filter and intermediate fuel pump on the 320d, and now it won't start. I've documented a problem where the car just cut out while driving and thought I had tracked this to water passing a bulkhead grommet and shorting a relay (or similar) - having removed most of the car interior to check