Hi there,
This code is for the turbine speed sensor. Most often replacing the sensor will resolve the issue. There is always a chance for a wiring problem or some type of internal transmission issue, but starting with the sensor is the best bet.
P0715 MERCEDES-BENZ - Transmission Input/Turbine Speed Sensor Circuit Malfunction Read more: https://www.autocodes.com/p0715_mercedes-benz.html
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