How To Fix Mercedes NOX’S And Adblue ( LEARN MERCEDES ADBLUE SYSTEM)

Рет қаралды 7,758

6 ай бұрын

Welcome back to Sanu Motors With Charlie! In today's video, we're diving into the world of diesel engine maintenance and addressing a common issue in modern Mercedes Benz diesel cars. If you've ever wondered about cleaning the NOx sensor and ensuring your Mercedes diesel runs smoothly, you're in the right place.
Our customer came to us with the dreaded "Engine Management Light" on their 2017 Mercedes Benz diesel car. After running diagnostics, we discovered a faulty code: "P220F77 - The heater of NOx sensor 2 (cylinder bank 1) has an electrical fault. The commanded position cannot be reached."
In this video, we'll guide you through the step-by-step process of cleaning the NOx sensor, explaining the importance of this critical component. We'll also shed light on the significance of AdBlue and its role in reducing harmful emissions in your diesel vehicle.
and also we'll teach you how to accurately identify which is the problematic NOx sensor, empowering you with valuable diagnostic skills.
But that's not all! We take a proactive approach to vehicle care by engaging with the customer to understand their daily routine. It turns out this particular Mercedes diesel car was primarily used for short trips. We share valuable advice, emphasizing the necessity of giving your diesel vehicle at least one hour of continuous driving at good speeds each month to prevent issues like the one we're addressing today.
By the end of this video, you'll have a clear understanding of:
How to identify and address NOx sensor issues.
The importance of AdBlue and its role in reducing harmful emissions.
Proactive tips to keep your diesel car in tip-top shape.
Don't forget to like, subscribe, and hit the notification bell to stay up-to-date with our latest car maintenance tips and tutorials. Thank you for tuning in, and as always, drive safely!
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Пікірлер: 22

@michaelchallis6699 3 ай бұрын

Thank you very good video. Have you any experience of Mercedes cars that have had the Nox sensor software update recall done on them ?

@sanumotorswithcharlie 3 ай бұрын

. The NOx sensor software update recall you're referring to is related to certain Mercedes-Benz vehicles equipped with diesel engines. This recall typically aims to address issues related to nitrogen oxide (NOx) emissions. While I don't have specific experiences from individuals who have had this recall done, generally, software updates for emissions-related components are common in the automotive industry to ensure compliance with regulations and to improve overall performance and efficiency. If you have concerns or questions about the recall or its effects on your Mercedes-Benz vehicle, it's best to consult with your authorized Mercedes-Benz dealership or service center for more detailed information and assistance. They can provide you with specific insights regarding the update and any potential impacts on your vehicle's performance.

@michaelchallis6699 3 ай бұрын

Thank you for the reply - I am worried that the dealers are keen to put right their emissions cheats but have seen on forums that the cars performance and economy are degraded

@calsal8 4 ай бұрын

Thanks for much better suggestions than my official MB dealer who simply suggest changing the whole adblue tank.. But what liquid do you put the sensors in to clean them overnight?

@sanumotorswithcharlie 4 ай бұрын

launch dpf cleaning thanks

@Demirbeg 4 ай бұрын

Thank you Sanu. I really watched your video till the end. I've also subsucribled to your channel. I've the same problem with my 2018 Eclass. First think the EML came without any messages. I still drove like that over 2 months. But not too much less than 2K miles. Some times the light gone itself. But after I watched many videos then I cleaned the 1st nox sensor near engine side which was the codes P3009EC and P300637. After the process the light was still there. 2 or 3 times I started the engine and then light gone again. I felt a noticeable increase in drive. I bought it a OBD2 from ebay and when I connected the device, this time it gave me an adBlue tank code which is U05A3. I am deleting the the code but what shall I do now please? Am I need to clean other nox or serious problem with the tank? Many thanks for your advise 🖐️

@sanumotorswithcharlie 4 ай бұрын

I appreciate your engagement with my video and your subscription to my channel, I can offer some advice regarding the issues you're experiencing with your 2018 E-Class. The error codes you mentioned, P3009EC and P300637, are related to the NOx (Nitrogen Oxide) sensors, and the U05A3 code is related to the AdBlue (Diesel Exhaust Fluid) system. These issues are typically associated with the emission control system in your Mercedes-Benz. Here are some steps you can take to address these problems: Check AdBlue Levels: First, make sure your AdBlue tank is adequately filled. Low AdBlue levels can trigger the U05A3 code. If it's low, refill it with the appropriate AdBlue fluid. The AdBlue tank is usually located near the fuel tank. Reset the Codes: You mentioned that you cleared the U05A3 code. If the code comes back after a short period, it could indicate an ongoing issue with the AdBlue system. Ensure the AdBlue system is functioning correctly. NOx Sensor Cleaning/Replacement: Since you already cleaned one of the NOx sensors, it's a good start. However, if the issue persists, you may need to clean or replace the other NOx sensors as well. They are typically located before and after the catalytic converter. Faulty NOx sensors can lead to emission-related problems. Professional Diagnosis: If the issues persist after performing the above steps, it's advisable to take your vehicle to a Mercedes-Benz dealership or a qualified mechanic who specializes in Mercedes vehicles. They can use advanced diagnostic tools to pinpoint the exact problem and provide the necessary repairs. Warranty: If your vehicle is still under warranty, these emission-related issues might be covered. Check your warranty details and consider contacting your dealership for warranty-related repairs. Remember that emission-related issues can negatively impact your vehicle's performance and may also lead to environmental concerns. It's essential to address them promptly to maintain the proper functioning of your Mercedes-Benz and ensure it complies with emissions regulations.

@Demirbeg 4 ай бұрын

@@sanumotorswithcharlieThank you for your very professional advice Charlie. Id like to visit your garage but I think your base in Bromley. I living in very end North London 🫣 But I definitely follow your advise for car issues without dealers visit. Because they do nothing for cars. Thanks a lot again 🖐️

@rozsavasile 5 ай бұрын

Thanks for the video . One question i have error code P2BA9 Nox exedence .Insuficient reagent quality . Mercedes C 2016 180 Adblue. It refers to Nox sensor or have to do whit injector from add blue ? Thanks

@sanumotorswithcharlie 5 ай бұрын

Looks like to me adblue system not right. Can you please check adblue injector tip. After that prime adblue pump and have a look adblue come out from injector

@fabiosousa783 Ай бұрын

Same with me, have you resolved it yet? what was it?

@kingofthemediaval 3 ай бұрын

Thank you for your videos about adblue issues.I got so many information about these.I have a c200d w205 with p13f6 p13e4 p20ee and U2902 faulty codes.Codes come after nox sensor 2 replaced with a new one.I cleaned the adblue injector as you describe. But the codes are not gone.I didnt try replacing adblue solution cos i dont know how to discharge liquid.What can i do else? Pls help

@sanumotorswithcharlie 2 ай бұрын

Thank you for reaching out and for your kind words about my videos. I'm glad to hear that you found the information helpful. Regarding the error codes you're experiencing after replacing the NOx sensor and cleaning the AdBlue injector, it sounds like there might be a deeper issue at play. If the codes persist even after these actions, it's essential to consider a few additional troubleshooting steps: Double-Check Installation: Ensure that the NOx sensor was installed correctly and that all connections are secure. Sometimes, improper installation can lead to faulty readings and trigger error codes. Inspect Wiring: Check the wiring harness connected to the NOx sensor for any damage or loose connections. Faulty wiring can also contribute to error codes. Diagnostic Scan: Perform a comprehensive diagnostic scan using professional diagnostic equipment. This will provide more detailed information about the specific nature of the faults and can guide further troubleshooting. Consult a Mechanic: If you're unsure about how to discharge AdBlue or tackle more complex issues, it's best to consult with a qualified mechanic or technician. They can provide hands-on assistance and expertise to resolve the problem effectively. Consider Replacing AdBlue Solution: While you're hesitant to replace the AdBlue solution yourself, a mechanic experienced with AdBlue systems can assist with this process. They can safely drain the old solution and refill the tank with fresh AdBlue fluid. Remember, addressing automotive issues often requires a combination of knowledge, experience, and sometimes professional assistance. Don't hesitate to seek help from a qualified professional if you're unsure about any steps in the process. Best of luck, and I hope you're able to resolve the issue soon!

@Tony-fh2wi 27 күн бұрын

just mapped out...end of problems.

@larc7553 5 күн бұрын

I have seen you change the nox sensors from front to back. Do these have to be reset on computer or can they just be swapped?

@sanumotorswithcharlie 3 күн бұрын

Thank you for watching! Yes, when you swap the NOx sensors from front to back, you typically need to reset them using a diagnostic tool. The sensors need to be recalibrated to ensure accurate readings and proper functioning of the AdBlue system. Simply swapping them without resetting might not resolve any issues and can lead to further complications. Always refer to the vehicle's service manual for specific procedures or consult with a professional mechanic.

@fazerlar 3 күн бұрын

Cheers. I cleaned the blue injector like on your video then blasted it for 40 motorway miles. The engine light hasn’t come back on yet so hopefully it’s worked. Keep up the good work👍

@sanumotorswithcharlie 2 күн бұрын

Cheers! Glad to hear that cleaning the blue injector and taking it for a motorway run seems to have resolved the issue. Hopefully, the engine light stays off. Thanks for the support, and keep enjoying our videos! 👍

@muhamed9917 10 күн бұрын

Hi , i have c klasse 220d bluetc eror code show P20e8 what can by the problem

@sanumotorswithcharlie 9 күн бұрын

The error code P20E8 for a Mercedes-Benz C-Class 220d BlueTEC typically indicates an issue related to the reductant pressure sensor. Specifically, this code usually points to a problem with the Diesel Exhaust Fluid (DEF) system, also known as AdBlue. The DEF system is crucial for reducing NOx emissions in diesel engines. Here are some common causes and potential solutions for the P20E8 error code: 1. **Low DEF Fluid Level**: - **Solution**: Check the DEF fluid level and refill it if necessary. Make sure to use the correct type of DEF fluid as specified by the manufacturer. 2. **DEF Pump Failure**: - **Solution**: Inspect the DEF pump for any signs of malfunction or failure. If the pump is defective, it may need to be replaced. 3. **DEF Pressure Sensor Issue**: - **Solution**: The pressure sensor itself may be faulty. Testing the sensor and its wiring for continuity and proper function is essential. Replace the sensor if it is found to be defective. 4. **Blocked or Frozen DEF Lines**: - **Solution**: Inspect the DEF lines for blockages or freezing. In cold weather, DEF can freeze, causing a blockage in the lines. Ensure the lines are clear and, if necessary, use a heating element to thaw frozen DEF. 5. **Electrical Issues**: - **Solution**: Check the electrical connections and wiring associated with the DEF system. Look for any signs of corrosion, damage, or loose connections. Repair or replace any damaged wiring as needed. 6. **DEF Injector Problem**: - **Solution**: The DEF injector might be clogged or malfunctioning. Inspect and clean the injector, or replace it if necessary. ### Steps to Diagnose and Fix: 1. **Check DEF Level**: - Ensure that the DEF tank is filled to the appropriate level. 2. **Scan with Diagnostic Tool**: - Use an OBD-II scanner to read the error codes and perform a system check. 3. **Inspect DEF System Components**: - Check the DEF pump, pressure sensor, lines, and injector for any issues. 4. **Check Electrical Connections**: - Inspect and test the wiring and connectors related to the DEF system. 5. **Clear Codes and Test Drive**: - After addressing any issues, clear the error codes and take the vehicle for a test drive to see if the code reappears. If you are not comfortable performing these checks yourself, it is recommended to take your vehicle to a qualified mechanic , Mercedes-Benz service center or SANU MOTORS for a thorough diagnosis and repair.