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Metallic Rattle Sound When Cold

 
Old 02-28-2019, 06:37 PM
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Default Metallic Rattle Sound When Cold

Our 7 has develped a metallic rattle sound at idle coming from under the car when cold which mostly dissapates at FOT...anyone else?
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Old 03-02-2019, 06:02 AM
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No but I’ve had this on another car. Part of the exhaust shielding had loosened and rattled when cold. As it heated up and the metal expanded it went away.
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Old 03-02-2019, 09:14 AM
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Can you post an audio clip?
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Old 03-02-2019, 09:18 AM
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Originally Posted by KevinGary View Post
Can you post an audio clip?
Donít have the car any more but it was a loose metallic rattle. They replaced part of the exhaust and it went away.
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Old 03-02-2019, 09:19 AM
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Originally Posted by Corgiman View Post

Donít have the car any more but it was a loose metallic rattle. They replaced part of the exhaust and it went away.
Sorry, my post was meant for the OP.
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Old 03-02-2019, 02:14 PM
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Originally Posted by Corgiman View Post
No but Iíve had this on another car. Part of the exhaust shielding had loosened and rattled when cold. As it heated up and the metal expanded it went away.
Had the exact same thing on another car as well - exhaust shield was loose. Super easy fix...if can locate the loose part!
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Old 03-03-2019, 09:36 AM
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Thanks for the replies, it could very well be a heat shield but to clarify, it sounds more like a metallic ticking. II'll try to make a decent recrding but the regular engin/fan noise seems to drown it out.
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Old 03-04-2019, 03:16 PM
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Originally Posted by RJC 1 View Post
Thanks for the replies, it could very well be a heat shield but to clarify, it sounds more like a metallic ticking. II'll try to make a decent recrding but the regular engin/fan noise seems to drown it out.

same here but I have the 2.0TFSI engine
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Old 03-04-2019, 07:04 PM
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Originally Posted by whyman View Post
same here but I have the 2.0TFSI engine
Wonder if the same heat shileds are used for both applications?
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Old 03-07-2019, 04:41 PM
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Ok more info, I tracked down the noise to the rear of the vehicle and it occurs after I rev it and as the revs drops it almost sounds like a rapid ticking of an old school typewriter, must be somehting in the exhaust or in a muffler. Sound does not go away when at FOT. tried to make another recording but the background noise from the engine drowned it out too much. Will try agin.
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