[Gabrielyoung123]

I have a 2009 328i and whenever I'm not in motion my cars RPMS move and cause the car to somewhat shake. It usually only happens when the car isn't moving. Also I've scanned the car and there's no codes, the engine light is from a past problem. Does anyone know what the problem could be? Also I linked the video showing what it does.

[Ins_328]

I had the same problem before and when I replaced my valve cover gasket in the BMW service shop they replaced electric shaft sensor because it was defective and after that issue went away. But I didn't have any codes, in your case you have engine light on so I would pull the codes first and go from there

[ckev70]

Rough idle with check engine could do to ignition coil. Pulling codes would help isolate issue

[Gabrielyoung123]

Originally Posted by ckev70

Rough idle with check engine could do to ignition coil. Pulling codes would help isolate issue

I already checked for codes and nothing

[Gabrielyoung123]

Originally Posted by Ins_328

I had the same problem before and when I replaced my valve cover gasket in the BMW service shop they replaced electric shaft sensor because it was defective and after that issue went away. But I didn't have any codes, in your case you have engine light on so I would pull the codes first and go from there

Thanks! I will look into it. Do you think it could lead to bigger problems if it isn't fixed?

[gbalthrop]

Originally Posted by Gabrielyoung123

...2009 328i and whenever I'm not in motion my cars RPMS move and cause the car to somewhat shake. It usually only happens when the car isn't moving. Also I've scanned the car and there's no codes, the engine light is from a past problem...

Funny how different your car is from mine -- on my 2007 328xi, when the SES light is on, that means a Fault Code (at least one ;-) has been saved in the DME, and it's still there (until CLEARED) even if the SES goes off.

The SES is NOT lit due to a "past problem," at least if the code was cleared.

1) Please get ALL DME Fault Codes read & report them here (P-code or BMW FC numbers);
2) Please describe what the "past problem" was/is, and what was done to correct it.

George

[Gabrielyoung123]

Originally Posted by gbalthrop

Funny how different your car is from mine -- on my 2007 328xi, when the SES light is on, that means a Fault Code (at least one ;-) has been saved in the DME, and it's still there (until CLEARED) even if the SES goes off.

The SES is NOT lit due to a "past problem," at least if the code was cleared.

1) Please get ALL DME Fault Codes read & report them here (P-code or BMW FC numbers);
2) Please describe what the "past problem" was/is, and what was done to correct it.

George

The code I got was PO442 but that has nothing to do with the shaking

[gbalthrop]

Originally Posted by Gabrielyoung123

The code I got was PO442 but that has nothing to do with the shaking

It COULD, particularly if P0442 (small leak in purge hose) has NOT been fixed, or has graduated to P0455 (large leak). ANYTHING that allows "unmetered" air (air that has NOT passed the MAF) into the intake manifold results in a TOO LEAN condition that can cause rough idle. Air leak into Intake (AKA vacuum leak) is the most common cause of rough idle, cutout when stopped, or Too Lean codes on either or both banks (P0171 & P0174).

Of course I can't say for sure that's your problem, but it appears to be MORE than a coincidence, particularly if the SES & code showed up about the time the shaking at idle began. If you have to pass an Annual Emissions Test, you need to get the tank leak (or purge hose leak) fixed anyway. See if that fixes the shaking at idle.

Also, have you had the Breather Heater Recall performed? That also may damage a 12-year-old "Vent Hose", and any leak there can cause similar symptoms.

George

[ArfMeow]

Hello,
I have the same issue, replaced my engine coils and spark plugs two weeks ago (225KM/2009 e90) and the shaking is completely gone. That may be it if you haven't changed yours in a while.
+ I had no codes