transmission fault

Hello, Looking for any advice or help, feeling sick right now.. Had my 2008 B Class for 6 years, been fine all that time. In July 2023 had a transmission issue, it went into limp mode. Took it to my local Merc independent garage in Exeter who sent off the control unit, came back and my car has...

Hoping for help ! My Mercedes CLC 200 cdi, automatic 5 speed gearbox 722.6 , problem with 5th gear. While driving on mostly straight roads the 5th gear sleeps out of drive and as the car comes to rest it reengage it's drive and goes back to 5th. This problem may come back immediately or not at...