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  #1  
Old 06-05-2019, 07:31 PM
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Please Help me diagnose this 4.8 engine noise

Hi All

Wife is out of town with our 2009 X5 4.8. 125k

Engine started making this noise.

Doesnít seem to be belt related

Same if Ac is on or off

Gets louder with higher rpms

Any thoughts would be greatly appreciated

Ben
2009 X5 4.8
2003 M3 6sp
2003 325xi Wagon

https://youtu.be/IsktMMtWx7M
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  #2  
Old 06-05-2019, 08:15 PM
LVR LVR is offline
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Sounds like the water pump to me...
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  #3  
Old 06-05-2019, 10:40 PM
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You posted this on bimmerfest too. Very well could be the water pump.


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  #4  
Old 06-06-2019, 02:27 AM
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Quote:
Originally Posted by BMRLVR4LF View Post
Hi All

Wife is out of town with our 2009 X5 4.8. 125k

Engine started making this noise.

Doesnít seem to be belt related

Same if Ac is on or off

Gets louder with higher rpms

Any thoughts would be greatly appreciated

Ben
2009 X5 4.8
2003 M3 6sp
2003 325xi Wagon

https://youtu.be/IsktMMtWx7M
Best would be to pull off the belt and hand spin everything from water pump to alternator etc that will give you a good idea on what it is. Would have to agree it does sound like itís the water pump. Good luck.
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  #5  
Old 06-06-2019, 06:50 AM
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Quote:
Originally Posted by Johnny_5 View Post
Best would be to pull off the belt and hand spin everything from water pump to alternator etc that will give you a good idea on what it is. Would have to agree it does sound like itís the water pump. Good luck.
Ok. Thanks. Replaced the water pump 3 months ago when we did the coolant pipe fix. Could be a bad part though.
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  #6  
Old 06-06-2019, 10:08 AM
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Quote:
Originally Posted by BMRLVR4LF View Post
Ok. Thanks. Replaced the water pump 3 months ago when we did the coolant pipe fix. Could be a bad part though.
Interesting if thatís the case it may not be the pump. I mean it could be defect but hard to say. Pull the belt spin everything and see if you can track it down that way. Keep us posted
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  #7  
Old 06-14-2019, 09:35 AM
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It was the CVT system. One of the caps was not sealed properly, disassembled and reassembled and the noise went away. Hope this helps someone in the future.

Ben
2009 X5
2003 M3 6sp
2003 325ix Wagon
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  #8  
Old 06-14-2019, 01:44 PM
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CVT?
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  #9  
Old 06-14-2019, 02:23 PM
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Sorry. CCV or PCV.
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