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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW! |
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09-22-2012, 04:31 PM
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#1 |
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Registered User
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Rattling noise from engine
I have a rattling noise coming from my engine bay. Im hoping there isn't something wrong
with my engine and its something minor. Anyone know what the noise is from? Thanks.  Last edited by Bobobo-bo Bo-bobo; 09-25-2012 at 03:28 PM. |
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09-23-2012, 05:51 AM
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#2 | |
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Registered User
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The DISA valve can make a clattering noise (when mine went bad, it sounded like a valve problem).
The procedure to check takes 5 minutes and requires no tools: http://forum.e46fanatics.com/showthread.php?t=748124 Quote:
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09-23-2012, 07:17 AM
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#3 |
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Registered User
Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 5,336
My Ride: '06 330CiC, '03 M5
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Suggest you read the DISA section in the first link below in my signature.
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Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616
Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501 Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491 Hidden OBC Menu - Check Voltage, Temps, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619 E46/E39 GM5 Door Lock Info - www.bmwgm5.com Lower hose fan switch O-ring - BMW #13621743299 |
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09-25-2012, 02:32 PM
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#4 |
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Registered User
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my disa valve is running fine. The rattle comes more from the front. It doesnt get louder when I drive the car but it doesnt go away. Sounds more like something is wobbling around loose. its not a uniform rattle
Sent from my DROID BIONIC using Bimmer App |
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09-25-2012, 03:03 PM
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#5 |
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Registered User
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video of the rattle?
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09-25-2012, 03:29 PM
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Registered User
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Quote:
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09-28-2012, 09:15 PM
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#7 |
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Registered User
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Idky my video keeps turning into a picture but the rattle seems to be coming from the front of the engine like one of the tensioners or the pumps. More towards the left side.
Sent from my DROID BIONIC using Bimmer App |
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09-30-2012, 03:09 PM
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#8 |
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Registered User
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Looks like its coming from water pump cover.
Last edited by Bobobo-bo Bo-bobo; 10-01-2012 at 12:38 AM. |
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10-02-2012, 12:31 PM
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#9 |
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Registered User
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Water pump pulley is a little wobbly does this mean the water pump bearings are diekng and the pump needs to be replaced or can I replace just the bearing
Sent from my DROID BIONIC using Bimmer App |
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10-02-2012, 01:52 PM
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#10 |
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No more E46 guy
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You'll have to replace the entire water pump. I picked up a Saleri (OEM) water pump from AutohausAz for $55 and the BMW coolant for another $20. Total with tax came out to right under $80. It's a good time to replace the thermostat as well, but I'm going to wait on that. $$$ is a little tight.
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10-05-2012, 04:17 PM
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#11 |
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Registered User
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Ok ill replace the pump, hopefully thatll fix the noise
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10-05-2012, 09:05 PM
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#12 |
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Registered User
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I had a rattle from the front and it was also my water pump. Old one was plastic and the new one is metal so it a repair and upgrade as well. give it a try, doesn't hurt since you car is most likely due for a pump anyway.
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10-06-2012, 03:32 PM
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#13 | |
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Registered User
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Quote:
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