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Noise - click clack clack click

Old Aug 29, 2006 | 01:38 PM
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I've got about 4200 miles on my blue bomber. My car has this constant clicking and clacking after it is well warmed up. It started initally only after the engine had shut off, but now even at an idle or at low speed I can hear it. It continues for several minutes after the engine is shut off. I assume it is the exhaust system, and when I had the car in service for the DSC/DTC sensor problem they told me the noise is normal. Problem is, the noise is getting louder and louder. Is it going to continue to increase in volume until a grand finale and then go away? Do any of the other 07 550 owners have the same experience?

Thanks!

PC
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Old Aug 29, 2006 | 01:42 PM
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if ur talking about the sound that happens on the out side of the car when the engine is off that is normal...its just the expanding of metals....engine, brakes, other parts...i thought all cars do it...i think the clicking stops after it cools down...
happens loud on hot days...on colder days should be quiter...
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Old Aug 29, 2006 | 01:43 PM
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Originally Posted by madoon' post='328388' date='Aug 29 2006, 02:42 PM
if ur talking about the sound that happens on the out side of the car when the engine is off that is normal...its just the expanding of metals....engine, brakes, other parts...
Mine does it while the engine is running and hot AND when I turn it off -- same noise.
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Old Aug 29, 2006 | 01:44 PM
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Mine is the same, too. Noise seems like coming from catalyst converter.
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Old Aug 29, 2006 | 01:48 PM
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Originally Posted by my530i' post='328391' date='Aug 29 2006, 02:44 PM
Mine is the same, too. Noise seems like coming from catalyst converter.
And it is very frequent? About every 3 or 4 seconds?
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Old Aug 29, 2006 | 02:21 PM
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It sounds like popcorn is popping
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Old Aug 29, 2006 | 02:30 PM
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Originally Posted by my530i' post='328411' date='Aug 29 2006, 03:21 PM
It sounds like popcorn is popping
Okay then. Thanks for confirming.
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Old Aug 31, 2006 | 10:56 AM
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Originally Posted by pc' post='328384' date='Aug 29 2006, 04:38 PM
I've got about 4200 miles on my blue bomber. My car has this constant clicking and clacking after it is well warmed up. It started initally only after the engine had shut off, but now even at an idle or at low speed I can hear it. It continues for several minutes after the engine is shut off. I assume it is the exhaust system, and when I had the car in service for the DSC/DTC sensor problem they told me the noise is normal. Problem is, the noise is getting louder and louder. Is it going to continue to increase in volume until a grand finale and then go away? Do any of the other 07 550 owners have the same experience?

Thanks!

PC

Geez,

Thats normal. Its getting louder because your waiting to hear the sound. Its fairly noticeable when the car is shutoff in the garage.


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Old Aug 31, 2006 | 02:59 PM
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All cars do it, as someone mentioned earlier it is the metal parts expanding. I found it does it more during when its cold, but when its hot it does it slighltly less. do you find its really quite loud and frequent after a spirited drive?
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Old Aug 31, 2006 | 03:00 PM
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Originally Posted by CVTBenhogan' post='329283' date='Aug 31 2006, 11:56 AM
Geez,

Thats normal. Its getting louder because your waiting to hear the sound. Its fairly noticeable when the car is shutoff in the garage.
CVT Benhogan
I just thought it was odd that during the first 2000 or so miles it never did it while the engine was running, only after the engine had shut off. And it is getting louder. In a parking structure 2 levels below my car, about 50 yards away, I can hear it. All my friends comment on it as well, not just me.
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