Had mine just replaced under warranty (before it's over in 2 weeks).
Symptoms were CEL which occurred 2 times under constant cruising @ 70 MPH with cruise control. Went away after 5 or 10 ignition cycles.
And when I would go WOT in 3rd at 2000rpm the car would in 80% of the cases not accelerate as fast as it could until it reached 3000rpm. This is gone now, but could also have to do with update from 170E to 240E.