P0058 Mercedes-Benz Code - HO2S Heater Control Circuit High Bank 2 Sensor 2
Quick Answer
Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit open shorted to ground, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 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
- P0058 Mercedes-Benz indicates HO2S Heater Control Circuit High Bank 2 Sensor 2.
- Common causes
- Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit open shorted to ground, Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 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.
Code P0058 Mercedes-Benz Description
In order to achieve the required temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
This fault code is stored in the engine control module when the control circuit for the exhaust gas oxygen sensor heater circuit does not perform as expected. The engine control module can calculate the current flow through the heater circuit to monitor the circuit condition.
What are the Possible Causes of the DTC P0058 Mercedes-Benz?
- Faulty Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2
- Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit open shorted to ground
- Heated Oxygen Sensor (H2OS) Bank 2 Sensor 2 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0058 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0058 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.
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Frequently Asked Questions about P0058 Mercedes-Benz Code
1. What are the common symptoms of OBDII code P0058 in a Mercedes-Benz?
- Common symptoms include poor fuel economy, rough idling, engine hesitation, and the illumination of the Check Engine Light.
2. What does the OBDII code P0058 for a Mercedes-Benz indicate?
- The code indicates an issue with the HO2S (Heated Oxygen Sensor) heater control circuit for Bank 2 Sensor 2, signaling a high voltage condition.
3. What are the possible causes of OBDII code P0058 in a Mercedes-Benz?
- Possible causes include a faulty HO2S heater, damaged wiring or connectors, a blown fuse, or issues with the ECM (Engine Control Module).
4. How can I diagnose and repair OBDII code P0058 in my Mercedes-Benz?
- Diagnosing the code involves checking the HO2S heater circuit for continuity and resistance, inspecting the wiring and connectors, and testing the ECM. Repair may involve replacing the HO2S sensor, repairing wiring, or replacing the ECM if necessary.
5. Can driving with OBDII code P0058 in a Mercedes-Benz cause further damage?
- Continuing to drive with the code may result in poor engine performance, increased emissions, and potential damage to the catalytic converter over time.
6. Is it safe to clear the OBDII code P0058 in a Mercedes-Benz with a diagnostic tool?
- Clearing the code without addressing the underlying issue will only temporarily remove the Check Engine Light. It's important to diagnose and repair the root cause of the code to prevent it from reoccurring.
7. How much does it typically cost to repair OBDII code P0058 in a Mercedes-Benz?
- The cost of repair can vary depending on the specific cause of the code, but it may range from $150 to $500, including parts and labor.
8. Can a DIY enthusiast fix OBDII code P0058 in a Mercedes-Benz?
- While some experienced DIY enthusiasts may be able to diagnose and repair the issue, dealing with the HO2S sensor and related components may require specialized tools and knowledge. It's recommended to consult a professional mechanic for accurate diagnosis and repair.
9. How long does it take to repair OBDII code P0058 in a Mercedes-Benz?
- The repair time can vary based on the exact cause of the code and the extent of the issue. On average, it may take a few hours to a full day to diagnose and repair the HO2S heater control circuit problem.
10. Can OBDII code P0058 in a Mercedes-Benz cause the vehicle to fail an emissions test?
- Yes, if the code is not addressed promptly, it can result in increased emissions and potentially cause the vehicle to fail an emissions test due to improper oxygen sensor function.
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