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Steve Thomas BMW
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      02-22-2013, 12:42 PM   #1
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Drives: E92 M3
Join Date: Oct 2011
Location: CA, Santa fe

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idle rpm and DCT

Hi, guys
My M was repaired, and new engine is under hood.

I notice that after the car is completely warmed up and DCT is in D1,
idle rpm is steadily at about 770~780rpm.
If I remove DCT to neutral, rpm is down to about 650 and stay there.

And when DCT is in D1, I put brake pedal, idle rpm is down to about 650 and stay there, too.

Sometimes, always 650 in all condition.

Is this normal?, just curious.

Last edited by maicol76; 02-22-2013 at 11:20 PM.
Appreciate 0
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