E250cdi 2015/ Air”BUBBLES”Noise in tank fuel

[LA10NUT]

Hi all! I’m new on MB CLUB
I have a MB 250 Cdi OM 651,150KW (UK)
I have a noise in the tank fuel,like” bubbles air”
With 30 mile before I change the rocker cover gasket, I have oil leak,seal on injector’s, fuel filter. Oil, all the filters.
All the parts I buyt from MB, and I change it in the workshop!
It s something wrong from there?
The car start normal, drive normal, pull normal,no lights in dashboard.
I have this noise when I put the ignition, after that disappeared.
Some opinions?From workshop check again, say it s normal, it’s sound of fuel electric pump from tank fuel

Thanks!

 

[LA10NUT]

Hi! I Change the fuel pump from tank,and suction hose system, nothing change!

Any opinions!?!?

 

[mioba]

If the cars running fine - whats the issue. Is this a new noise.

 

[LA10NUT]

If the cars running fine - whats the issue. Is this a new noise.

Yes,running fine, but this noise in tank fuel is not ok
Today I will change the return fuel line hose from injectors

 

[DREAMER NO2]

Do you hear the noise all the time , or only when car is on the move ?