[Fritzer]

This has been happening on and off for the last couple months for me. The car has not thrown any codes or CEL for this. I am completely unsure of what could cause this. Any input would be appreciated.

2011 E90 LCI with N51 SULEV engine. Car was warm when the video was filmed, no accessories on except headlights, complete standstill with foot on the brakes and parking brake fully applied. Probably 2,500 miles since last oil change with Pentosin 5W-30.Listen closely before I change the gears and you can hear the rough idle, it sounds like it's pulsing.

The only thing I can think is bad MAF, O2 sensors, or crankshaft position sensor or something. But zero codes have been thrown for this. Could it possibly have to do with the transmission? Totally lost, any help or advice would be appreciated. Video embedded below.

[Fritzer]

[AoS810]

I have experienced identical symptoms on my 2008 E90 N51 when I went from P to R, also when going to D but it was definitely worse going into reverse. Scanned my car and I had code 2A87 for the Vanos solenoid exhaust mechanism jammed. I haven't had time to go in and fix it yet (clean/swap) because its a very inconsistent issue.

[Fritzer]

Originally Posted by AoS810

I have experienced identical symptoms on my 2008 E90 N51 when I went from P to R, also when going to D but it was definitely worse going into reverse. Scanned my car and I had code 2A87 for the Vanos solenoid exhaust mechanism jammed. I haven't had time to go in and fix it yet (clean/swap) because its a very inconsistent issue.

I might just do that and report back.

If anyone else has any information or input as well that would be much appreciated! Thanks!

[PichaDis11]

Have you tried to pull codes stored in EGS module?

[Fritzer]

Originally Posted by PichaDis11

Have you tried to pull codes stored in EGS module?

Actually I am not quite sure how to do that. Do you think there would be anything there over a normal OBD2 scan?