01-15-2025, 01:22 PM
This is what BMW says.
"Failure of the component
If the parking manoeuvring assistant fails, the following behaviour is to be expected:
Check Control message in the instrument panel
After replacement of the PMA control unit or one of the ultrasonic sensors, no initial start-up is required. However, the control unit checks every time the engine starts if the sensor software is compatible with the control unit software. If they are not compatible, a corresponding fault code is set in the PMA control unit. In this case, the service function Updating Software for Ultrasonic Sensors needs to be run"
"Failure of the component
If the parking manoeuvring assistant fails, the following behaviour is to be expected:
Check Control message in the instrument panel
After replacement of the PMA control unit or one of the ultrasonic sensors, no initial start-up is required. However, the control unit checks every time the engine starts if the sensor software is compatible with the control unit software. If they are not compatible, a corresponding fault code is set in the PMA control unit. In this case, the service function Updating Software for Ultrasonic Sensors needs to be run"
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