G26 4 series random vibration on idle

whaggwhagg · 10-27-2022, 07:01 PM

Hi guys, not long after I bought my G26 4 series 430i gran coupe I notice the car body vibrate and shake randomly when car is stop at idle. Strangely it only vibrate on Comfort mode, nothing happens in Sport mode.
And this happens randomly and the vibration can be light and strong. I think it happens more often when the car is cold, I am not able to show this to the dealership since it occurs randomly. They say might be the issue with oil quality but I always add 98 ron oil.
So just wondering if you guys have experience this issue? Thanks

evB · 06-18-2023, 08:15 PM

Hi whaggwhagg,

I have the exact the same issue too. I've taken my G26 420i back to the dealership 3 times already, with no resolution in sight.

Mine happens more when the engine is warm. I am able to drive the car to the dealership and the technicians are able to experience the vibrations for themselves.

When I first reported the problem, the dealership advised it wasn't a common fault - but now there are another 3 cars they are dealing with that have the exact same problem.

The technicians advise it's a hard fix because there are no warnings or errors raised when the car is plugged in.

Fingers crossed a fix can be found soon. This is my first BMW and has been a very annoying experience so far!

10-27-2022, 07:01 PM	#1
whaggwhagg New Member 2 Rep 5 Posts Drives: 430i Gran Coupe Join Date: Apr 2022 Location: Melbourne iTrader: (0)	G26 4 series random vibration on idle Hi guys, not long after I bought my G26 4 series 430i gran coupe I notice the car body vibrate and shake randomly when car is stop at idle. Strangely it only vibrate on Comfort mode, nothing happens in Sport mode. And this happens randomly and the vibration can be light and strong. I think it happens more often when the car is cold, I am not able to show this to the dealership since it occurs randomly. They say might be the issue with oil quality but I always add 98 ron oil. So just wondering if you guys have experience this issue? Thanks
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06-18-2023, 08:15 PM	#2
evB Registered 0 Rep 1 Posts Drives: 420i Join Date: Jun 2023 Location: Melbourne iTrader: (0)	Hi whaggwhagg, I have the exact the same issue too. I've taken my G26 420i back to the dealership 3 times already, with no resolution in sight. Mine happens more when the engine is warm. I am able to drive the car to the dealership and the technicians are able to experience the vibrations for themselves. When I first reported the problem, the dealership advised it wasn't a common fault - but now there are another 3 cars they are dealing with that have the exact same problem. The technicians advise it's a hard fix because there are no warnings or errors raised when the car is plugged in. Fingers crossed a fix can be found soon. This is my first BMW and has been a very annoying experience so far!
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