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-   -   Rattling noise while idling!!! (https://xoutpost.com/bmw-sav-forums/x5-e53-forum/43556-rattling-noise-while-idling.html)

faccen1 02-22-2008 04:30 PM

Rattling noise while idling!!!
 
I have an 01 X5 4.4 with 90,000 miles which has started making a really annoying noise.

When I am idling in drive with my foot on the brake pedal, there is an embarrasing rattling noise coming from what sounds like somewhere in the engine compartment.

If I put it into neutral or park while keeping my foot on the brake, the noise goes away.

Any ideas on how to fix this?

mrbmwx5 02-22-2008 04:45 PM

check your exhaust hanger

X5Dawg 02-22-2008 05:03 PM

Mine just came back from the shop and I had a similar issue. Mechanic said it was some plastic piece that had broken - might have been what mrbmwx5 said it was. I will check my receipt and see what he had it listed as.

faccen1 03-05-2008 03:43 PM

Hey X5Dawg - did you find your receipt for this repair?

X5Dawg 03-05-2008 05:33 PM

He did not charge me for it, so it is not on my receipt. I will email him and find out what it was.

Tomaz 03-05-2008 11:01 PM

While a friend or spouse is in the car simulating the rattle condition, and the emergency brake on, pop the hood and listen. Check under the car too as sound can migrate in strange ways. If I had to guess I'd say a loose heat shield. Good luck

hani831 03-06-2008 01:04 AM

I had the same problem and it was the hanger, so I took it out, and now I have the same freckn noise, its so annoying pulling up to a traffic light and there's this loud rattling noise

tbc111 03-06-2008 03:32 AM

Quote:

Originally Posted by hani831
I had the same problem and it was the hanger, so I took it out, and now I have the same freckn noise, its so annoying pulling up to a traffic light and there's this loud rattling noise

Can anyone post a pic of this hanger?

X5Dawg 03-06-2008 09:56 AM

Here is what my mechanic said my issue was:

BMW calls it an “Adjuster” It is a vacuum operated adjustable flap that changes the tuned length of the intake manifold to enhance low RPM torque.

TucanSpam 03-06-2008 11:31 AM

my old toyota had a similar problem like this, it was the catalac converter which had to be replaced.


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