Sound with open oil cap is normal. It's not from the vacuum pump, it's from the pressure control valve, as part of the oil separator /crankcase vent unit. It controls the crankcase pressure. So you don't need to worry about that sound.
@@5500ua hello there 🤗 I got E60 with M57 and got exactly the same hard knocking sound. No engine fault codes,rpms perfect,car drives but smokes grey. Sound seems to come from up front. What could be?
@5500ua Thanks for taking your time to write back man! But that still doesn't explain the hard knocking sound coming from first cylinder. I believe if there was a turbo/cooler issue,I would have some warning light or reduced power,but I don't. My bet is it's mechanical but no idea bottom end or top end...
@@eleonik76 vacuum pump knoking, like in my video, its normal. On M57 first piston will blow and after that you maybe will get some message on dashboard
Sound with open oil cap is normal. It's not from the vacuum pump, it's from the pressure control valve, as part of the oil separator /crankcase vent unit. It controls the crankcase pressure. So you don't need to worry about that sound.
No, its vacum pump
Its strange how the noise goes away if you unplug that hose when the engine is running.
Completely normal on literally all M57s.
Easy fix: Don't run the car with the oil cap unscrewed.
7:48 you have to twist it anty clockwise and it slides our.
Do u solved now？
no, its not possible to solve
Noise is completely normal.
yes, video is right about this )
@@5500ua hello there 🤗 I got E60 with M57 and got exactly the same hard knocking sound. No engine fault codes,rpms perfect,car drives but smokes grey. Sound seems to come from up front. What could be?
@@eleonik76 gray/black smoke = too much fuel / less air. So maybe you have some problem with turbo / injectors / intake pipe
@5500ua Thanks for taking your time to write back man! But that still doesn't explain the hard knocking sound coming from first cylinder. I believe if there was a turbo/cooler issue,I would have some warning light or reduced power,but I don't. My bet is it's mechanical but no idea bottom end or top end...
@@eleonik76 vacuum pump knoking, like in my video, its normal. On M57 first piston will blow and after that you maybe will get some message on dashboard
too much smoke coming out from cap. Oil separator (breather) needs to be changed asap.
nice try)
piano
ahahhahahaha, new car has the same sound !!! why did you change it ! hahah lost money.
hahha