p0715
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Mercedes-Benz · SUVs
Input/Turbine Speed Sensor Circuit Malfunction
Quick Answer
Error code P0715 on your Mercedes-Benz SUVs means: Input/Turbine Speed Sensor Circuit Malfunction. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
X243X247X254V167X167AMG GLB35 4MATIC 2024AMG GLC43 4MATIC 2024AMG GLC63 S 2024AMG GLE53 4MATIC+ 2024AMG GLE63 S 2024AMG GLS63 2024EQB 250+ 2024EQB 300 4MATIC 2024EQB 350 4MATIC 2024GLB250 2024GLB250 4MATIC 2024GLC300 2024GLC300 4MATIC 2024GLE350 4MATIC 2024GLE450 4MATIC 2024GLS450 4MATIC 2024GLS580 4MATIC 2024Maybach GLS600 2024
Likely Causes
How to Fix It
1
Inspect transmission fluid level and condition for contamination or debris
2
Check the input speed sensor connector at the transmission for corrosion or damage
3
Measure input speed sensor resistance and compare to factory specifications
4
Inspect wiring harness between the sensor and transmission control module
5
Replace the input speed sensor if electrical values are out of specification
Pro Tip
This issue typically requires professional diagnosis. Attempting this fix without proper training could cause further problems.
Parts You May Need
Input/turbine speed sensor
Transmission fluid
Transmission filter
Sensor connector repair kit
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