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      03-12-2014, 07:28 AM   #4
Alex.J
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Drives: BMW E60 535d MSport
Join Date: May 2013
Location: Nottingham

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Quote:
Originally Posted by Digitalize View Post
Worn belts or pulleys or bearings can make a noise. Need to have someone rev the engine whilst you look around in the bay. Turbo is drivers side. If the noise isn't coming from there it's definitely not turbo.

Also have to remember that turbos do make noise, they aren't silent. With the window down I can hear mine.
Agreed!

No noise the cabin, but noise when window is down, its noiser at low revs but not exactly loud!
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