PEUGOOT 306 AUTOMATIC BOX 306

Hi, I need help with my Automatic Al4 box of my Peugeot 306, after a few seconds the "D" unleashed and I can no longer follow.
Give

Your transmission presents a hydraulic leak in the progress application clutch and when heating this becomes more noticeable, which is why it no longer advances, it requires full service, that is, complete repair with change of pistons, leagues and bands filter

Hello good morning, I have the same problem with a Renault Megane, the translator is turned on on the board and the transmission is ensured, already changing full kit, external sensors and now I am going to try a body of vavulas; If you have original information about this transmission I thank you.

You need to tell me what model is your car and if you scheduled that you throw fault codes

Megane 2007, the code that always records is G4-Oil Pressure Regulation. We have disassembled the transmission 3 times and no anomaly is never found, everything in perfect condition, as we commented previously we change the pressure regulatory sensor, the speed sensor, the inhibitor switch and the pressure sensor, all if the same. The only thing that remains to be replaced the valve body and try a TCM. What advises me?