01-11-2017, 12:01 PM | #1 |
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Engine sometimes shakes car on 1st startup.....
I have about 800 miles on my 2017 M240i and I have noticed from Day 1 that occassionally on morning startups the engine would shake the car for a second or 2 before it settles at idle.
Anyone experience this ???? |
01-11-2017, 01:46 PM | #2 |
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01-11-2017, 02:28 PM | #4 |
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VANOS on cold starts? Mine's been doing this since the start (both 2015 and 2016 models) and even my 2011 Z did this. No issue that I know of.
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01-11-2017, 04:49 PM | #5 |
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My 2009 335xi FBO was doing that as well and my Current 2017 230xi (B48 engine) does the same as well fully stock and im at 3800km (2300 miles).
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01-11-2017, 07:37 PM | #7 |
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My 2015 235 engine doesn't shake at all on start-up.
I feel a pulse, not something I would describe as a vibration, as it settles to its 750rpm idle. but might just be exhaust pulses. |
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01-11-2017, 08:57 PM | #8 |
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I had this same issue on my 2009 335i and 2016 M235i. I started using clean, higher octane fuel (94 octane here in Canada) and it went away. Hope this helps.
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01-12-2017, 05:31 AM | #9 |
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01-20-2017, 02:59 AM | #10 |
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My 235 did this from time to time and i asked one of my buddies (hes a bmw tech) and he said its vanos adjusting itself on cold starts.
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04-24-2017, 01:17 PM | #12 |
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Mine does it fairly often on startups too... I have read that it is normal due to the low rpm idle.
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