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X5 E70 (2007 - 2013)
E70 BMW X5 produced between 2007 and 2013. Discuss the E70 X5 with other BMW owners here.

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  #1  
Old 10-10-2006, 01:33 PM
benchsound benchsound is offline
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Location: essex
 
Join Date: Oct 2006
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Mein Auto: bmw x5
X5 3.0d turbo boost noise

Help. I have a 2002 3.0d x5, the car has started to make a perculiar noise when the turbo gets full boost i am getting an intermittant, mostly at the start of the journey whooshing/squealing/chatter noise, sounds like a dump valve letting off. Definately boost related. Has any one experienced similar issues.
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  #2  
Old 03-07-2007, 02:03 PM
STEVEY530D STEVEY530D is offline
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Location: england
 
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Mein Auto: 530 d 2002
well sounds like what i had tonight. heard a wooshing sound like dumpvalve when the turbo was cutting of there is a section of chrome pipe had come away from the rubber hose wo jubilee clips on it to fix it this cured the problem. i have a 530 d i could see the pipe on the left of the engine and it runns parallel to the engine hope this helps steve
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Old 03-07-2007, 04:58 PM
Diver624 Diver624 is offline
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Location: Long Island, New York
 
Join Date: Jan 2007
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Mein Auto: Porsche 911 Turbo
Quote:
Originally Posted by benchsound View Post
Help. I have a 2002 3.0d x5, the car has started to make a perculiar noise when the turbo gets full boost i am getting an intermittant, mostly at the start of the journey whooshing/squealing/chatter noise, sounds like a dump valve letting off. Definately boost related. Has any one experienced similar issues.
Sounds like the boost diverter valve is bad, it's a very unreliable part and makes those types of sounds when bad. My Porsche Turbo went through a number of them before I installed billet valves and now no more problems. The diverter valves I installed were actually made in England by Bailey. Take the car to you mechanic, if the diverter valve is the problem it's a pretty easy fix unless the valve is in a hard to reach spot. The billet valves cost about $175 each.
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