Thread: engine knock
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      02-15-2013, 06:34 PM   #10
First Lieutenant
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Drives: 2011 550i DGM
Join Date: Feb 2011
Location: NYC

Posts: 367
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I have the same problem. It's like a twitching that happens every few seconds with the heater on. You can hear it if you listen closely by the drivers headlamp. I need to bring my car in to get all my problems fixed.
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