BMW E39 diesel pump replacement
I replaced the fuel pump in the tank of the 530D yesterday. It was quite fiddly and I couldn't find any useful guide on the internet, so I thought I'd create a quick outline of the procedure: Symptoms of failure : poor starting/cutting out when the fuel level falls to around a quarter of a tank. Cost : £42 from GSF , plus 2x 9mm petrol hose clips (the originals are not reusable). Procedure : remove the rear seat base by pulling up sharply on it's front edge (there are a pair of spring clips holding it in place). Beneath are 2 access panels to the tank, the pump is under the right-hand side one (behind the driver on a UK right-hand drive car). Remove the cover and disconnect the 2 hose connections and the electrical plug (removed by pushing the locking clip sideways). Unscrew the locking ring by gently rotating it with a hammer and chisel. Now slowly remove the fuel sender unit, noting it's orientation and how it slots into the pump assembly below ...