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P0198 Mercedes-Benz Code - Engine Oil Temperature Sensor High

- Code Popularity: 8,184 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC P0198 Mercedes-Benz?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Engine Oil Temperature sensor
  • Engine Oil Temperature sensor harness is open or shorted
  • Engine Oil Temperature sensor circuit poor electrical connection
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How to Fix the DTC P0198 Mercedes-Benz?

Review the 'Possible Causes' mentioned above and visually examine the corresponding wiring harness and connectors. Ensure to check for any damaged components and inspect the connector pins for signs of being broken, bent, pushed out, or corroded.

Search for P0198 Mercedes-Benz Questions and Answers: Search here →

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0198 Mercedes-Benz code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

When is the Code Detected?

The P0198 indicates the Engine Oil Temperature Sensor signal voltage is hign (low temperature).

What are Code Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

Code P0198 Mercedes-Benz Description

The engine oil temperature sensor is used to detect the engine oil temperature. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the engine oil temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

OBDII Code P0198 Mercedes-Benz - Engine Oil Temperature Sensor High - AutoCodes.com
P0198 Mercedes-Benz Code - Engine Oil Temperature Sensor High

Need More Information on the Code?

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Code P0198 Mercedes-Benz comments

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