Hi folks, new member just joined, I have a 2015 W246 B200 diesel, since I have owned the car occasionally it will have a stutter, (usually low speed picking off from junctions etc) slight loss of power, then overrev and back to normal. Occasionaly the gear selector paddles won't turn to manual (usually accompanied by the stutter at some point) this will go away if I stop the car and switch off and back on again.
intermittent engine management light as well.
No error codes on (admittedly cheap obd) so if any one has any idea id be obliged, or how to get into engineering mode so I could maybe look a little deeper
Thanks

 

Hey bud, wanted to find out if you had managed to fix this/found what was causing the issue.

 

Hi,

My wife has been complaining with a similar problem on our 2015 B250. Took to independent mechanic AND dealer and they could not recreate it and no code where thrown. It's was about 1.5 to 2 years ago. Took it to a another independent mechanic recently, and his scan reported a P052E71 error. Told me to check if there's an extended warranty.