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Old 10-15-2012, 01:56 PM   #649
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Join Date: Sep 2011
Location: New York
Posts: 9,474
My Ride: '04 330Ci
I'm no expert, but I've not come across anything that might give you a rough idle from a slo coolant leak.
Search for rough idle on this board.
Don't know how you're going to find that coolant leak.

Good place to start reading for rough idle:
Stinger9 is offline   Reply With Quote