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BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > Regional Forums > UK > Hard-Drive like clicking noise here:



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      02-15-2008, 09:11 AM   #1
m.rk77
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Hard-Drive like clicking noise here:

While looking around the engine I noticed computer hard-drive like clicking noise inside here. Does anybody know what makes this noise? Is there a computer in there?
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      02-17-2008, 01:13 AM   #2
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No, the rapid ticking noise is most likely to be the fuel injectors, which is a normal occurence on the 335 engines (both petrol and diesel)
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      02-17-2008, 11:15 AM   #3
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I think its only when the engine is off but maybe I cant hear it because the engine is much louder.

So: when I turn off the engine I hear this hard drive like clicking for a few minutes after which it shuts off instantly.

For a while I thought there is a computer under the engine cover but when i removed the cover I noticed that it does not look like a computer.



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Originally Posted by RR View Post
The ticking noise - when the engine is on, or off?
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      02-17-2008, 03:28 PM   #4
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I have that on mine too. I believe its the idle control valve. It goes into a calibration sequence when the engine is off.
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