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Posted

Hi all, I’m new to the group. I have a 2009 X5 3.0d m57 with a loud knocking noise from the top end of the engine and white/grey smoke from the exhaust.

I have tried unplugging the injectors one by one but the noise remains, it seems to becoming from the top front of the motor.

Any suggestions would be welcome

 

 

Posted

Diagnostic scan shows nothing, I’ve unplugged the injectors one by one but the noise remains. I had the injectors tested and all seemed fine but I know they can suddenly fail. I’m thinking it might be a stuck or broken follower, so I’m going to take the cover off and have a check.

Do these suffer from oil galleries getting blocked

Posted

Just managed to get injector 5 out as it was stuck fast and I didn’t have a pull, now it’s out I’ve found this which I’m guessing is going to be my problem. A very badly seated injector 

8383B00B-FD62-4CB2-B28E-04A2C5C1C107.jpeg

Posted

Looks like you may have found the bad one check if you can change only one? I seem to recall reading they need registering 

But then at my age I could be wrong

Dave

  • 1 year later...

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