yelcab2

On my E60 5 series, oil was changed 600 miles along with the oil filter. During the oil filter change, the internal frame with the small seal came out and was thrown away. I drove it that way for a few days and the CEL came on. I subsequently changed both the Actuator solenoids, and bought a new oil filter internal frame. That solved the problem.

Fast forward 600 miles, the CEL with code P2091 (Exhaust cam, bank 1 actuator voltage high). I am not sure I understand this code and what are possible solutions. Any pointers? Cannot be the actuator solenoids, they are 600 miles old.

yelcab2

To close out this thread. I changed the exhaust cam position sensor, did not help. Decided to swap the two new solenoids around and the error follows one of the solenoid. I changed the cheap ass solenoid to a brand new BMW one, problem solved. Lesson: Never buy cheap solenoid actuator.

kd7iwp

I’ve heard those sentiments before about the cheaper actuators. Thanks for updating us.

audiophool

Good news. For parts that critical, I'll only ever by OE/OEM bits. Put a CPS on my N54 - VDO brand.