Replace the pump with the latest revision. In this video, we are replacing the high pressure fuel pump (hpfp) due to low pressures. Despite being one of bmw’s most iconic turbocharged engines, the n54’s high pressure fuel pump (hpfp) remains its most notorious.
Worst BMW 335i - 135i HPFP failure - long crank - YouTube
A few weeks ago i got stranded on the highway and got hit with the old hpfp issue, assuming this was it i got one offline.
I replaced the pendulum drive shaft seal, this is what usually fails and lets the oil leak out, reducing its hydraulic capability
Here is the walk through on how to rebuild the high pressure fuel pump ( hpfp ) that comes. Here is a proper way of replacing bmw 335i e90 e92 e93 high pressure fuel pump replacement A step by step guide to. Here is a video of the infamous bmw 335i n54 high pressure fuel pump (hpfp) failure.
« previous thread next thread » high pressure fuel pump (hpfp) diy Bmw 335i bmw 335i hard starting issue due to high pressure fuel pump and fuel rail pressure sensor replacement. This video explains how to diagnose if your pump is working on an n54 engine
