AutoCodes – Mercedes-Benz – P2570 Mercedes-Benz

P2570 Mercedes-Benz Code - Direct Ozone Reduction Catalyst Temperature Sensor Circuit High

Quick Answer

The Engine Control Module (ECM) monitors the Direct Ozone Reduction Catalyst Temperature Sensor signal circuit. Common causes include Faulty Direct Ozone Reduction Catalyst Temperature Sensor, Direct Ozone Reduction Catalyst Temperature Sensor harness is open or shorted, Direct Ozone Reduction Catalyst Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2570 Mercedes-Benz indicates Direct Ozone Reduction Catalyst Temperature Sensor Circuit High.
Common causes
Common causes include Faulty Direct Ozone Reduction Catalyst Temperature Sensor, Direct Ozone Reduction Catalyst Temperature Sensor harness is open or shorted, Direct Ozone Reduction Catalyst Temperature Sensor circuit poor electrical connection.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 11,299
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 19, 2019
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Code P2570 Mercedes-Benz Description

The Engine Control Module (ECM) monitors the Direct Ozone Reduction Catalyst Temperature Sensor signal circuit. The ECM sets the OBDII code is the Direct Ozone Reduction Catalyst Temperature Sensor signal is out of factory specifications.
OBDII Code P2570 Mercedes-Benz - Direct Ozone Reduction Catalyst Temperature Sensor Circuit High - AutoCodes.com
P2570 Mercedes-Benz Code - Direct Ozone Reduction Catalyst Temperature Sensor Circuit High

What are the Possible Causes of the DTC P2570 Mercedes-Benz?

  • Faulty Direct Ozone Reduction Catalyst Temperature Sensor
  • Direct Ozone Reduction Catalyst Temperature Sensor harness is open or shorted
  • Direct Ozone Reduction Catalyst Temperature Sensor circuit poor electrical connection

How to Fix the DTC P2570 Mercedes-Benz?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2570 Mercedes-Benz code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P2570 Mercedes-Benz code?

Need more information on how to fix the P2570 Mercedes-Benz code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2570 Mercedes-Benz code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2570 Mercedes-Benz Code

What are the common symptoms of OBDII code P2570 in a Mercedes-Benz?

Common symptoms include poor fuel efficiency, engine misfires, rough idle, and the illumination of the check engine light.

What are the possible causes of OBDII code P2570 in a Mercedes-Benz?

Possible causes include a faulty direct ozone reduction catalyst temperature sensor, damaged wiring or connectors, a malfunctioning ECM, or a problem with the sensor circuit.

How can I diagnose the direct ozone reduction catalyst temperature sensor circuit high issue in my Mercedes-Benz?

Diagnosis typically involves using an OBDII scanner to read the code, inspecting the wiring and connectors for damage, testing the sensor's resistance, and checking for any ECM faults.

What repairs are recommended for resolving OBDII code P2570 in a Mercedes-Benz?

Common repairs include replacing the direct ozone reduction catalyst temperature sensor, repairing or replacing damaged wiring or connectors, resetting the ECM, and clearing the fault code.

Can driving with OBDII code P2570 in a Mercedes-Benz cause further damage?

Continued driving with this code may lead to reduced engine performance, decreased fuel efficiency, and potential damage to the catalytic converter. It is advisable to address the issue promptly.

Is it possible to reset OBDII code P2570 in a Mercedes-Benz without fixing the underlying problem?

While you can clear the fault code using an OBDII scanner, the underlying issue causing the code will persist. It is crucial to address the root cause to prevent further complications.

Are there any preventive measures to avoid OBDII code P2570 in a Mercedes-Benz?

Regular maintenance, including checking the sensors and their circuits, inspecting wiring for damage, and addressing engine performance issues promptly, can help prevent this code from appearing.

What is the direct ozone reduction catalyst in a Mercedes-Benz, and why is its temperature sensor important?

The direct ozone reduction catalyst is part of the emissions control system, and its temperature sensor helps regulate exhaust gas temperatures to optimize catalytic converter efficiency and reduce harmful emissions.

Discuss the causes and fixes for P2570 Mercedes-Benz OBDII Code

  • I have replaced the radiator on my 2011 MLK 350 and I am getting a P2570 code. Did I replace with the wrong radiator? Can I purchase a Direct Ozone Reduction Catalyst Temp Senor for my vehicle?

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