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Noise/Vibration - Subtle at Cold Idle
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10-24-2013, 08:19 AM | #1 |
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Drives: 2011 E90 328i SG/SB
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Noise/Vibration - Subtle at Cold Idle
I have a small problem, 2011 E90 328i here, hearing a slight humming vibrating from something in the bottom end of the motor/header (possibly?) when car is idling cold. Once warmed up noise seems to disappear. Thoughts from anyone? I have BMW PE so not sure if maybe one of the clamps needs adjustment.
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10-24-2013, 04:59 PM | #2 |
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If u can feel the problem from the pedal I have the same problem (2009 e92 n51 328i). The vibration used to happen all the time when I start up the car in the morning. Ever since a month ago the vibrating just stopped on its own.
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2009 Alpine White E92 N51 328i Automagic | Premium & Sport Pkg. | Coral Red/Black Dakota Leather Interior | M-Spor | BMW Performance Exhaust | Active Autowerke Headers | BBS CH-R | CPS Front Lip | Performance Front Grills | 888Concepts Custom Headlights (GONE)
2011 Alpine White E90 N55 335i Automagic |
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11-08-2013, 07:55 AM | #4 |
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Yeah this seems to get worse when it's colder outside which leads me to believe the BMW PE I have is out of alignment. I was backing up about a month and a half ago and swerved to avoid some idiot behind me, backed the tip right into a curb and pushed the whole exhaust to the left. I was able to straighten it out on the hanger, but I guess I knocked it out of alignment more than I thought. The noise appears to be coming from just after the header.
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11-08-2013, 03:01 PM | #6 |
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Mine does it regardless of whether I'm in neutral or not.
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bmw, exhaust, idle, noise, vibration |
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