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      02-07-2018, 09:46 PM   #1
doug_999's Avatar

Drives: 2018 M3/2011 1M
Join Date: Mar 2008
Location: Chicago, IL

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Rattle when clutching in?

So it is winter and cold here and my car has about 400 miles on it. However the last few days, I've noticed what I originally thought was a rattle when clutching in (worse when car is cold). Tonight I listened a bit closer and it seems to be the exhaust - as I can hear it when clutched in and revving the motor - maybe it is just the ZCP exhaust? The odd part is it appears to come from right about where the trans is - and almost resembles the popping sound the car can make when in sport+ mode (I'm in sport or efficient when this happens) - but once again, it comes from where the trans is, not the rear of the car.

Anyone else have this? Normal?
2018 M3, Mineral White, 6 speed, ZCP, loaded sans CCB
2011 1M, Black loaded sans sat radio
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      02-07-2018, 09:57 PM   #2
Lieutenant Colonel

Drives: 18 MG M3 ZCP
Join Date: Jan 2010
Location: Atlanta

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The popping sound happens in sports mode too, may be u are hearing that
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      02-07-2018, 10:40 PM   #3
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Drives: F80
Join Date: Oct 2014
Location: San Diego

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I get a rattle sound when clutching in on 1st gear during certain engine loading conditions. I think it happens more when off throttle and engine is under load. It seems it is more or less normal.
2018 M3 SSII/Cloth Delete/DCT Delete/Moonroof Delete/Civic Package Delete
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