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Thread: whining noise on my CDTI 150 SRI

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    Default whining noise on my CDTI 150 SRI

    All

    I have a 2006 CDTI 150 vectra SRI and theres a whining / whizzing noise that seems to be engine speed dependant.

    The noise is purely when you put your foot down either statically or in gear.

    Recently I have had a DM flywheel and clutch change. The turbo is operating as it should ( I think ) and economy isnt affected ?

    Any takers ???

    Karl B

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    Regular Member platty's Avatar
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    Hi mate I had a similar noise to the one you described, for me it turned out to be the aircon compressor. Try running the car with the drive belt removed, if theres still a noise it's possibly a timing belt idler or tensioner, if the noise dissapears could be drive belt tensioner, alternator or aircon compressor. Hope this helps

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    Thanks for your reply, With the air con compressor, would that generate a lack of cool air when the aircon is on ??

    How easy is it to get to ? is it a home job or would I need garage support ?

    Thanks

    Karl B

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    Regular Member mattv6diesel's Avatar
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    Vehicle : Bmw 330d

    Trim : Msport

    Engine : 3.0d

    Year : 2008

    Default

    does it copy the engine speed or stay there when the revs drop like turbo noise

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    Regular Member platty's Avatar
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    The aircon compressor on mine was working ok, ie no loss of cool air just a noisy bearing. To replace is fairly straight forward, access is good once the bumper is removed. Before removing though the air con system needs to be evacuated as its under pressure, and once replaced will have to be re-filled with refrigerant. A good aircon specialist can do this as well as many fast fit places like Kwik-fit etc.

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    Quote Originally Posted by mattv6diesel View Post
    does it copy the engine speed or stay there when the revs drop like turbo noise

    No its increases and decreases with engine revs, whats your thoughts ?

    Karl B

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    having the same problem atm aswell mate, though on mine is the 120 and its very loud wine sounds almost like siren, took it to a local garage and their adement that its the bearing in the turbo, not too sure as the turbo still spools up and operates fine, taking it to a vaux dealer tomorrow to get it sorted, still under warranty thankfully

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    I have this too so would be interested to hear what the outcome is, my mechanic heard it and said its a bearing but he hasn't had a look yet

  9. #9
    Regular Member Chocki's Avatar
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    I have a whiney noise on mine as well especially when I put my foot down.





    The noise is my girlfriend complaining




    Sorry, I couldn't resist.....

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    I had a similar noise once but not on a cdti.

    Turned out to be the alternator on the way out.

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