Hi - I have e class. Do you recommend getting all the sensors and injectors cleaned like you did even if you didn’t have the fault? Where are you based in London?
Thanks for reaching out! If you haven't noticed any specific faults, it may not be necessary to clean all the sensors and injectors right away. However, preventive maintenance can help avoid potential issues down the line, especially with components like NOx sensors and injectors that are essential for maintaining your car's emissions and performance. For the Mercedes E-Class, regular cleaning can definitely extend the life of these parts and improve fuel efficiency. If you're noticing any rough idling, decreased performance, or warning lights related to the emissions system, then it's a good idea to address those concerns immediately. We're based in Bromley, South London, at SANU Motors, and we cover a 5-mile radius from the BR1 3PE postcode. Feel free to visit or call us if you want to schedule a diagnostic or any cleaning services.
Hi Charlie. I have merc E class 2014 and showing same P229F NOx Snsor-Circuit Range /Performance (blank 1 Sensor2). Any Ideal how can I get rid of Engine Management. Thank you.
Hi there! The P229F error code on your 2014 Mercedes E-Class indicates a problem with the NOx (Nitrogen Oxide) sensor, specifically “Bank 1 Sensor 2.” This sensor is part of the vehicle's emissions control system and is critical for managing the emissions produced by the engine. When this error code appears, it usually means that the sensor isn't working properly or the readings are out of the expected range, triggering the engine management light. ### Here’s how you can address this issue: 1. **Inspect the NOx Sensor Wiring and Connections**: - Start by visually inspecting the wiring and connectors going to the NOx sensor. Check for any visible damage, corrosion, or loose connections, as these can cause communication issues. 2. **Check for Exhaust Leaks**: - An exhaust leak near the NOx sensor can cause incorrect readings. Inspect the exhaust system, especially near the sensor, for leaks that might be affecting sensor performance. 3. **Perform a Sensor Reset or Relearn Procedure**: - Sometimes, the error persists due to stored data in the Engine Control Unit (ECU). Use a diagnostic tool compatible with Mercedes vehicles (like a professional OBD-II scanner) to perform a reset or relearn procedure for the NOx sensor. This will help the ECU re-evaluate the sensor data and may clear the error. 4. **NOx Sensor Cleaning or Replacement**: - If the sensor is dirty or contaminated (sometimes caused by oil or fuel additives), it might give incorrect readings. Cleaning may help, but often, replacement is required if cleaning does not resolve the issue. 5. **Check the AdBlue/DEF System (Diesel Models)**: - If your Mercedes is a diesel model, ensure the AdBlue (Diesel Exhaust Fluid) system is working correctly. A malfunction in this system, like low fluid levels or a faulty injector, can also cause NOx sensor errors. 6. **Update ECU Software**: - Sometimes, a software update from Mercedes can fix miscommunications or bugs that cause sensor faults. Check with a Mercedes dealer or a professional shop specializing in Mercedes-Benz vehicles to see if an update is available for your car's ECU. 7. **Replace the NOx Sensor**: - If all else fails, replacing the NOx sensor is often necessary. Make sure to replace it with a genuine or high-quality aftermarket sensor designed for your specific model. After replacement, clear the code with a scanner and perform a relearn procedure if necessary. 8. **Professional Diagnostics**: - If you’ve tried the steps above and the issue persists, it might be time to get professional diagnostics. A specialized Mercedes-Benz shop can conduct in-depth testing and pinpoint the exact issue, sometimes saving you from replacing unnecessary parts. Clearing the engine management light should involve diagnosing the problem accurately and addressing the root cause rather than just resetting the light, as it will likely come back if the underlying issue is unresolved. Let me know if you need further guidance or have questions about any of these steps!
Thanks for reaching out! @sanumotorswithcharlie, our garage is based in Bromley, UK. Yes, you're welcome to bring your car in for inspections! Just let us know a suitable time, and we’ll be happy to assist you. Feel free to adjust the details if needed!
Hello, i'm having c class diesel w205 ....now sensor down stream cilynder 1 bank 2 ,the problem is that i replaced this one and after 2 days ,engine light came back ....as nox sensor faulty ,,outside of parameters '' went to mercedes they said that i have to change now the other one ....but way ??????if up stream sensor is not appear as faluty .thank you
It sounds frustrating, especially after just replacing the downstream sensor. Mercedes' NOx sensor systems can be sensitive, and when one sensor begins to show faults, the ECU may also detect issues in the emission control process and recommend replacing the other sensor to maintain balance and accurate readings across both banks. The upstream sensor, even if not showing a direct fault, plays a role in regulating emissions by providing real-time data for air-fuel mixture adjustments. If the downstream sensor isn’t functioning within parameters, it may indicate that both sensors need to be calibrated together to work optimally. This approach can sometimes prevent further faults by ensuring consistent data for the ECU. If you'd like, you could clear the error code and monitor it to see if it’s a persistent issue or check with an independent Mercedes specialist to verify if the upstream sensor replacement is necessary.
hello great videos , can you please tell me what you solution you use to clean the nox sensor . thankyou .
It’s special for me. But you can try any DPF cleaner or diesel EGR cleaning product
Hi - I have e class. Do you recommend getting all the sensors and injectors cleaned like you did even if you didn’t have the fault? Where are you based in London?
Thanks for reaching out! If you haven't noticed any specific faults, it may not be necessary to clean all the sensors and injectors right away. However, preventive maintenance can help avoid potential issues down the line, especially with components like NOx sensors and injectors that are essential for maintaining your car's emissions and performance.
For the Mercedes E-Class, regular cleaning can definitely extend the life of these parts and improve fuel efficiency. If you're noticing any rough idling, decreased performance, or warning lights related to the emissions system, then it's a good idea to address those concerns immediately.
We're based in Bromley, South London, at SANU Motors, and we cover a 5-mile radius from the BR1 3PE postcode. Feel free to visit or call us if you want to schedule a diagnostic or any cleaning services.
Hi Charlie. I have merc E class 2014 and showing same P229F NOx Snsor-Circuit Range /Performance (blank 1 Sensor2). Any Ideal how can I get rid of Engine Management. Thank you.
Hi there! The P229F error code on your 2014 Mercedes E-Class indicates a problem with the NOx (Nitrogen Oxide) sensor, specifically “Bank 1 Sensor 2.” This sensor is part of the vehicle's emissions control system and is critical for managing the emissions produced by the engine. When this error code appears, it usually means that the sensor isn't working properly or the readings are out of the expected range, triggering the engine management light.
### Here’s how you can address this issue:
1. **Inspect the NOx Sensor Wiring and Connections**:
- Start by visually inspecting the wiring and connectors going to the NOx sensor. Check for any visible damage, corrosion, or loose connections, as these can cause communication issues.
2. **Check for Exhaust Leaks**:
- An exhaust leak near the NOx sensor can cause incorrect readings. Inspect the exhaust system, especially near the sensor, for leaks that might be affecting sensor performance.
3. **Perform a Sensor Reset or Relearn Procedure**:
- Sometimes, the error persists due to stored data in the Engine Control Unit (ECU). Use a diagnostic tool compatible with Mercedes vehicles (like a professional OBD-II scanner) to perform a reset or relearn procedure for the NOx sensor. This will help the ECU re-evaluate the sensor data and may clear the error.
4. **NOx Sensor Cleaning or Replacement**:
- If the sensor is dirty or contaminated (sometimes caused by oil or fuel additives), it might give incorrect readings. Cleaning may help, but often, replacement is required if cleaning does not resolve the issue.
5. **Check the AdBlue/DEF System (Diesel Models)**:
- If your Mercedes is a diesel model, ensure the AdBlue (Diesel Exhaust Fluid) system is working correctly. A malfunction in this system, like low fluid levels or a faulty injector, can also cause NOx sensor errors.
6. **Update ECU Software**:
- Sometimes, a software update from Mercedes can fix miscommunications or bugs that cause sensor faults. Check with a Mercedes dealer or a professional shop specializing in Mercedes-Benz vehicles to see if an update is available for your car's ECU.
7. **Replace the NOx Sensor**:
- If all else fails, replacing the NOx sensor is often necessary. Make sure to replace it with a genuine or high-quality aftermarket sensor designed for your specific model. After replacement, clear the code with a scanner and perform a relearn procedure if necessary.
8. **Professional Diagnostics**:
- If you’ve tried the steps above and the issue persists, it might be time to get professional diagnostics. A specialized Mercedes-Benz shop can conduct in-depth testing and pinpoint the exact issue, sometimes saving you from replacing unnecessary parts.
Clearing the engine management light should involve diagnosing the problem accurately and addressing the root cause rather than just resetting the light, as it will likely come back if the underlying issue is unresolved. Let me know if you need further guidance or have questions about any of these steps!
@@SanuMotorswithCharlie Thank you for reply. where are you based and is it possible for me to bring the car for inspections?.
Thanks for reaching out! @sanumotorswithcharlie, our garage is based in Bromley, UK. Yes, you're welcome to bring your car in for inspections! Just let us know a suitable time, and we’ll be happy to assist you.
Feel free to adjust the details if needed!
Hello, i'm having c class diesel w205 ....now sensor down stream cilynder 1 bank 2 ,the problem is that i replaced this one and after 2 days ,engine light came back ....as nox sensor faulty ,,outside of parameters '' went to mercedes they said that i have to change now the other one ....but way ??????if up stream sensor is not appear as faluty .thank you
It sounds frustrating, especially after just replacing the downstream sensor. Mercedes' NOx sensor systems can be sensitive, and when one sensor begins to show faults, the ECU may also detect issues in the emission control process and recommend replacing the other sensor to maintain balance and accurate readings across both banks.
The upstream sensor, even if not showing a direct fault, plays a role in regulating emissions by providing real-time data for air-fuel mixture adjustments. If the downstream sensor isn’t functioning within parameters, it may indicate that both sensors need to be calibrated together to work optimally. This approach can sometimes prevent further faults by ensuring consistent data for the ECU.
If you'd like, you could clear the error code and monitor it to see if it’s a persistent issue or check with an independent Mercedes specialist to verify if the upstream sensor replacement is necessary.
@@SanuMotorswithCharlie thank you
Your Welcome
I am having the same problem. Can I book my car with you for the cleaning and how much it cost? Thank you
yes we can