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TuningBot DTC Database · v4.37.15

P1147 Mercedes-Benz - Engine coolant temperature (ECT) sensor(s) - malfunction

Manufacturer-specific interpretation for Mercedes-Benz. All interpretations of P1147

P · PowertrainThermal_managementOBD2

What P1147 means

P1147
Engine coolant temperature (ECT) sensor(s) - malfunction Mercedes-Benz · thermal_management Data confidence 62%

The control module detected improper operation of the Engine coolant temperature (ECT) sensor(s). This is the manufacturer-specific definition used by Mercedes-Benz.

Possible causes

  • Wiring
  • ECT sensor(s)

Related and nearby codes

How to read P1147

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

147

Specific fault index within the subsystem.

Frequently asked questions about P1147

What does P1147 mean?

Engine coolant temperature (ECT) sensor(s) - malfunction. The control module detected improper operation of the Engine coolant temperature (ECT) sensor(s). This is the manufacturer-specific definition used by Mercedes-Benz.

Is P1147 generic or manufacturer-specific?

P1147 is a manufacturer-specific code. In this database it is documented for: Mercedes-Benz. The same number can mean something different on other brands.

Can TuningBot remove P1147 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

ECU tuningStage 1 dyno results for Mercedes engines See the results →

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