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Knocking noise top of engine.

Rossco578
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Rossco578 Newbie

Rossco578

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Hi,

 

I have this knocking noise on the top of the engine. It started with a low knocking sound then it got progressively worse until I stopped and got recovered. New top turbo 3k miles ago and fresh oil change. Car seems to be all working fine apart from the aggressive knocking. Any ideas? 2013 x5 40d 110k on the clock. 

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Greydog Grand Master

Greydog

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Morning Ross

I would start by checking that all injectors are OK, seated properly and fixed down at the correct torque. If there are no injector or glow plug issues then the valve train needs investigation could be a lifter sticking or a Vanos issue.

Dave

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