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Steve, BMW Expert
Category: BMW
Satisfied Customers: 25244
Experience:  BMW Expert
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Bmw5 series with dull thump coming from engine on tick ove

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Bmw5 series with dull thump coming from engine on tick over



it is difficult to diagnose a noise that one cannot hear.


please tell me, what information can I provide that would be helpful to you?

Customer: replied 3 years ago.

Faint thump almost like heart beat coming from engine only on tick over though comes and goes

this is probably nothing to worry about but it should be verified hands on


it could be an emissions pump cycling or a belt driving component failing


ultimately the noise will need to be traced using a stethoscope and possibly by removing the belts and running the car without them briefly


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