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Loud Air Sucking From Engine With Bonnet Open

Matt92

By Matt92,
in BMW 1 Series Forum

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Matt92 Newbie

Matt92

Posted
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Hi I have a 2007 120d m sport 3dr I am just wondering when I have the bonnet up and rev there's a very loud air sucking sound which I think is the turbo or air intake but I have had turbo diesels before and they have not been anywhere near this loud, just wondering if this is normal or if maybe a pipe could of came loose. Thanks

Guest Mister Dabsy

Guest Mister Dabsy

Posted
Posted

If it still has the standard airbox then you have an intake leak or other loose pipework ;)

If it has an aftermarket induction then the same applies but will be easier to find...

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