Hi all
Does anyone know if there is a micro switch or sensor on the gear shifter as my L322 3.6 TDV8 keeps coming out of drive but a quick touch in the shifter and it's back into drive. So wondering if there's an easy switch/senor to get to that can be replaced?
Thoughts appreciated.

Could be a seized cable clamp bolt in the selector lever: auto box issues - help please!
Phil