BMW 535 Xi M Sport Diagnosis Code 165014 HPFP Sensor Plausibility Part 1

[@simtec6886]

Hello mate, this is definitely the chain model. Remove big black seal on front of engine and check the chain that drives the pump.

[@straightupbmw]

Yes, module is damage

[@simtec6886]

For testing purposes remove vacuum pipe that goes to the valve cover from the vacuum pump to release load from the vacuum pump, the noise should go

[@straightupbmw]

Thanks