B47 418d shake / vibrate on start

HamzaF36 · 10-27-2023, 02:37 AM

Hello, my 2018 418d with B47 engine (33000miles only), shakes and vibrates (I feel it inside the car) for 5 seconds or less on first morning start (18° C temperature outside), the idle fluctuate a little then stabilise when the vibration stops. The car act normally then... Any ideas? And what about putting non LL04 oil? I have 5W30 C3 but doesn't mention LL04, will it suit my car?
Thank you in advance

pashad13 · 12-21-2023, 04:34 PM

I also felt that this morning (cold start) on my 2015 328d. It came in waves of short 3-5 second intervals where I could feel my butt shaking a bit in my seat. Curious to know what it is.

Eddamoo · 12-22-2023, 04:02 AM

I would have a guess that you may have a few glow plugs developing a fault - have a look for fault codes as you may have some errors that may indicate the problem better.

Glow plugs pre-heat the diesel before the compression stroke ignites it. If the diesel is too cold, the ignition of the fuel will feel rough.

10-27-2023, 02:37 AM	#1
HamzaF36 New Member 0 Rep 7 Posts Drives: bmw f36 418d Join Date: Oct 2023 Location: rabat morocco iTrader: (0)	B47 418d shake / vibrate on start Hello, my 2018 418d with B47 engine (33000miles only), shakes and vibrates (I feel it inside the car) for 5 seconds or less on first morning start (18° C temperature outside), the idle fluctuate a little then stabilise when the vibration stops. The car act normally then... Any ideas? And what about putting non LL04 oil? I have 5W30 C3 but doesn't mention LL04, will it suit my car? Thank you in advance
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12-21-2023, 04:34 PM	#2
pashad13 Pasha Dastmalchi 62 Rep 111 Posts Drives: 2019 M240i Coupe 8 Spd Auto Join Date: May 2019 Location: Laguna Beach, California iTrader: (0)	I also felt that this morning (cold start) on my 2015 328d. It came in waves of short 3-5 second intervals where I could feel my butt shaking a bit in my seat. Curious to know what it is. __________________ Owned: 2019 Alpine White M240i Coupe \| VRSF Catless DP \| AP Intake \| BM3 Stage 2 (Blown at 21k miles) Own: 2015 Black Saphire Metallic 328d Touring M-Sport
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12-22-2023, 04:02 AM	#3
Eddamoo Captain 394 Rep 816 Posts Drives: BMW 430dX Join Date: Apr 2018 Location: Sheffield, England iTrader: (0)	I would have a guess that you may have a few glow plugs developing a fault - have a look for fault codes as you may have some errors that may indicate the problem better. Glow plugs pre-heat the diesel before the compression stroke ignites it. If the diesel is too cold, the ignition of the fuel will feel rough.
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