Troubleshooting steps
Check sensor wiring, test sensor
Manufacturer DTCs
Mercedes B3174 – DME: Sensor fault detected
Sensor fault detected
Details
Mercedes B3174 error indicates sensor fault detected. Wiring issue, faulty sensor.
Error typesensor
MeaningSensor fault detected
Typical causesWiring issue, faulty sensor
SolutionsCheck sensor wiring, test sensor
SeverityMedium
Catalog references
Where this appears
Mercedes-BenzB3174
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What does B3174 mean on Mercedes?
B3174 on Mercedes indicates sensor fault detected.
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