Bf109 constant shaking

[Luftwaffle]

No matter what I do the Bf109 keeps shaking with dials going wild but more like short seperate shakes while just cruising low speed a few secaonds apart. This doesn't happen in other planes and is rather annoying. If I turn autopilot on it goes away magically and then I fly using same pitch and throttle settings it comes back. I use CEM but not Temp Mangement.