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  1. #1
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    New sound when accelerating

    Hi.

    The D5 has developed a sort of turbine noise when accelerating.

    Not gear or speed related but rpm.

    Vague I know but any ideas?


    Regards
    S60 D5, 2002
    BMW 545i touring

  2. #2
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    There's a split/hole somewhere between the airbox and turbo somewhere.

    Probably the elbow on the rubber pipe on the turbo inlet.
    19t, greens, 3" inlet, 3" downpipe with race cat, V70R catback, autotech map...

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  3. #3
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    Do you have excess black smoke or notice a loss in power?

    I think Martin may be right.
    2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights

  4. #4
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    No black smoke

    Still surprisingly nippy!

    Regards
    S60 D5, 2002
    BMW 545i touring

  5. #5
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    Did you find the fault?
    Small split in turbo hose??
    2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights

  6. #6
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    Not looked yet, still making the same noise.

    Need to have a root around when I am not trying to fill the piggy bank!
    S60 D5, 2002
    BMW 545i touring

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    Hi Pauld,
    I would say it is the cold air pipe that fits to the turbo air inlet, I have found that the turbo can over boost if this pipe is split,
    Dave

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    Had a good dig around yesterday and I think it may be the turbo air inlet pipe.

    The intercooler pipes are very soft too, and expand significantly when the car is reved.

    Any ideas where to get replacements and the part numbers.

    it is a 163bhp E3

    regards
    S60 D5, 2002
    BMW 545i touring

  9. #9
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    Quote Originally Posted by Pauld View Post
    Had a good dig around yesterday and I think it may be the turbo air inlet pipe.

    The intercooler pipes are very soft too, and expand significantly when the car is revved.

    Any ideas where to get replacements and the part numbers.

    it is a 163bhp E3

    regards
    If the hoses are rubber than that's totally normal!

    Replacements will be dealer only, but they sound ok.

    What makes you think it's the MAF to Turbo pipe? Have you done a smoke leak test?
    The Plastic MAF to Turbo pipe is prone to cracking and splitting at the neck part which goes around the Turbo flange under the jubilee. They also leak at the PCT nipple (if fitted).
    2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights

  10. #10
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    Hi You can get the turbo air inlet pipe on ebay for about £28
    Dave

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    So this has finally been diagnosed as a blown intercooler.
    S60 D5, 2002
    BMW 545i touring

  12. #12
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    Quote Originally Posted by Pauld View Post
    So this has finally been diagnosed as a blown intercooler.
    Also common. Nice one for finding it.
    2014 V60 Polestar 6spd Auto :: Polestar map peak boost 17.4psi :: IPD 3" DP + 150cel :: Polestar 2.5" exhaust :: Paddle Shift Geartronic :: Black glass :: Maxton Splitter :: K+N Filter :: IPD Aluminium Top engine mount :: Brembo 6 pots :: 20" Polestar rims :: Brembo 371mm floating discs :: Sensus RTi + DAB + BT + WIFi :: D3S XENARC 6000k Active bending headlights


 

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