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Message: <blockquote data-quote="BMW2007" data-source="post: 25013" data-attributes="member: 4659"><p>sifu, help needed... lately my 525i has an error of trans. failsafe prog after not using for weeks. It seems like the transmission went into safe mode whenever the switch is ON. The car still can move but kind of stuck at 4th gear or so. Drove the car moving around for a while then turn OFF the engine, the trans. failsafe prog message was cleared by itselft after restart (note: car must move for a while before restart).However, the same error messgae will pop up again on the next day when the car is start up. Drove the car moving around and restart, error on the OBD meter will be cleared by itself. This process/scenario repeated for few days already. Sent the car to the mechanic for reading out the error code in the eveving, the error code found as Pressure Actuator 2 (P0700, P0778). Didn't have time to further troubleshoot the faulty part as it needs more time. The mechanic said it might be Solenoid valve but not too sure which valve is having problem. Help needed: 1. Is the Presurre Actuator = Solenoid valve? i dont think so, right?2. How to confirm if the fault part is Pressure Actuator or not? 3. How many Pressure Actuator inside the GB? Which one is Pressure Actuator 2?thanks so much!</p></blockquote><p></p>