What Is AdBlue System And How Does It Work?

AdBlue system is a crucial component in modern diesel vehicles, designed to reduce harmful emissions. This system uses a urea-based solution to convert nitrogen oxides into harmless substances, helping vehicles meet stringent environmental standards, and AutoExplain.com offers expert remote support for diagnosing and maintaining these systems. Understanding the intricacies of AdBlue can empower you to maintain your vehicle’s efficiency and compliance.

The Impact of Driving Conditions on AdBlue Consumption

Driving conditions can significantly impact AdBlue consumption in your Mercedes-Benz vehicle. Here’s what you need to know:

• Driving Style: Aggressive driving, such as frequent acceleration and hard braking, can increase AdBlue consumption.
• Load: Carrying heavy loads or towing trailers can also increase AdBlue consumption.
• Road Conditions: Driving on hilly or mountainous terrain can increase AdBlue consumption.
• Ambient Temperature: Extreme temperatures can affect AdBlue consumption, with higher consumption rates in hot weather.
• Engine Load: Higher engine loads, such as those experienced during uphill driving or when accelerating, will result in increased AdBlue usage.
• Average Consumption: Under normal driving conditions, a Mercedes-Benz vehicle typically consumes AdBlue at a rate of 1-3% of its fuel consumption.

1. What is the AdBlue System?

The AdBlue system is an exhaust after-treatment technology used in diesel vehicles to reduce nitrogen oxide (NOx) emissions. Specifically, AdBlue, also known as Diesel Exhaust Fluid (DEF), is injected into the exhaust stream to convert NOx into harmless nitrogen and water, complying with Euro 6 standards. This system is crucial for minimizing environmental impact and ensuring regulatory compliance.

• Selective Catalytic Reduction (SCR): At the heart of the AdBlue system is the SCR catalyst. This catalyst facilitates the chemical reaction that converts NOx into nitrogen and water. The SCR system ensures that diesel vehicles meet stringent emissions standards.
• Diesel Exhaust Fluid (DEF): DEF, marketed as AdBlue in Europe, is a key component. It’s a non-toxic solution of urea and deionized water. High-quality DEF is essential for the proper functioning and longevity of the SCR system.
• Euro 6 Standards: These European emission standards set limits for pollutants in vehicle exhaust. AdBlue systems help vehicles meet these standards by significantly reducing NOx emissions. Compliance with Euro 6 standards is essential for diesel vehicles in Europe.

2. What is AdBlue Made Of?

AdBlue is composed of 32.5% high-purity urea and 67.5% deionized water. The urea solution is carefully formulated to ensure optimal performance within the Selective Catalytic Reduction (SCR) system, effectively reducing harmful nitrogen oxide (NOx) emissions from diesel engines. This precise mixture is crucial for the system’s efficiency and compliance with environmental standards.

• Urea: The urea used in AdBlue must be of high purity to avoid contaminants that could damage the SCR system. The quality of urea directly affects the performance and longevity of the AdBlue system.
• Deionized Water: The water used in AdBlue must be deionized to prevent mineral deposits that could clog the injection system and reduce its efficiency. Using deionized water ensures the system operates smoothly and reliably.
• Purity Standards: AdBlue must meet the ISO 22241 standard, ensuring that the solution is of the correct composition and purity. Meeting this standard guarantees that the AdBlue will function correctly and not harm the vehicle’s emission control system.

3. How Does the AdBlue System Work?

The AdBlue system functions through a process called Selective Catalytic Reduction (SCR). The AdBlue fluid is injected into the exhaust stream, where it vaporizes and decomposes to form ammonia. This ammonia then reacts with nitrogen oxides (NOx) in the SCR catalyst, converting them into harmless nitrogen and water, significantly reducing harmful emissions.

• Injection Process: AdBlue is injected as a fine mist into the hot exhaust gases. Precise metering ensures optimal NOx reduction without overusing the fluid. The injection process is controlled by the engine control unit (ECU).
• Chemical Reaction: Inside the SCR catalyst, ammonia reacts with NOx to produce nitrogen and water. This chemical reaction is most efficient at temperatures between 200°C and 500°C. The catalyst is typically made of materials like vanadium pentoxide or titanium dioxide.
• System Components: The system includes a storage tank for AdBlue, a pump to transfer the fluid, an injector to spray it into the exhaust, and sensors to monitor the process. Each component plays a critical role in the effective reduction of emissions. Regular inspection and maintenance of these components are essential.

4. Why is the AdBlue System Needed?

The AdBlue system is essential for diesel vehicles to meet stringent Euro 6 emission standards by significantly reducing nitrogen oxide (NOx) emissions. These emissions contribute to smog and acid rain, harming both the environment and public health. By converting NOx into harmless nitrogen and water, the AdBlue system helps to mitigate these harmful effects.

• Environmental Impact: NOx emissions contribute to air pollution, causing respiratory problems and other health issues. Reducing these emissions helps improve air quality and protects ecosystems. Environmental regulations increasingly mandate the use of AdBlue systems.
• Health Benefits: Lower NOx levels in the air lead to reduced respiratory illnesses and improved overall public health. This is particularly important in urban areas where vehicle emissions are concentrated. AdBlue systems play a crucial role in creating healthier living environments.
• Regulatory Compliance: Governments worldwide are tightening emission standards to combat air pollution. AdBlue systems enable diesel vehicles to comply with these regulations, avoiding fines and penalties. Compliance ensures the continued operation and marketability of diesel vehicles.

5. What Vehicles Require AdBlue?

Most diesel vehicles manufactured after 2006, particularly those over 7.5 tonnes and those adhering to Euro 4, Euro 5, and Euro 6 emission standards, are equipped with AdBlue systems. These systems are essential for meeting the regulatory requirements for nitrogen oxide (NOx) emissions, ensuring compliance and environmental responsibility.

• Commercial Vehicles: Trucks, buses, and other heavy-duty commercial vehicles often require AdBlue to meet emission standards due to their high mileage and large engines. These vehicles contribute significantly to NOx emissions.
• Passenger Cars: Many modern diesel passenger cars also use AdBlue systems to achieve lower emissions. The adoption of AdBlue in passenger cars helps reduce the overall environmental impact of transportation.
• Construction and Agricultural Equipment: Off-road diesel equipment, such as tractors and construction machinery, may also use AdBlue to comply with emission regulations. This helps reduce pollution in agricultural and construction settings.

6. How to Check if Your Vehicle Uses AdBlue?

To determine if your vehicle uses AdBlue, check for a blue or black cap near the diesel filler cap, often marked with “AdBlue” or “DEF.” Consult your vehicle’s handbook for detailed information on its AdBlue requirements and specifications. Additionally, the vehicle’s dashboard may display AdBlue levels or warnings when the fluid is low.

• Visual Inspection: Look for the AdBlue tank, usually located near the fuel tank or in the trunk. The cap is typically blue and clearly labeled.
• Vehicle Handbook: The owner’s manual provides comprehensive information about your vehicle’s features, including whether it requires AdBlue. Refer to the manual for specific instructions and recommendations.
• Dashboard Indicators: Modern vehicles often have dashboard indicators that show the AdBlue level and provide warnings when it needs to be refilled. Pay attention to these alerts to maintain optimal performance.

7. What Happens if You Run Out of AdBlue?

If your vehicle runs out of AdBlue, a warning alert will appear on the dashboard. In many vehicles, the engine’s power will be reduced to limit emissions, and in some cases, the vehicle may not start until the AdBlue tank is refilled. Operating a vehicle without AdBlue can also lead to fines and penalties for non-compliance with emission standards.

• Performance Reduction: To comply with emission regulations, the vehicle’s engine control unit (ECU) may reduce power output, limiting speed and acceleration. This ensures the vehicle does not exceed emission limits.
• No-Start Condition: Some vehicles are programmed not to start if the AdBlue tank is empty. This prevents the vehicle from operating illegally and causing excessive emissions.
• Legal Consequences: Driving without AdBlue can result in fines and other legal penalties, as it violates emission standards. Always ensure the AdBlue tank is adequately filled to avoid these issues.

8. Will Running Out of AdBlue Damage the Engine?

Running out of AdBlue will not directly damage the engine, but it will affect the vehicle’s performance and may prevent it from starting. The primary impact is on the emission control system, as the engine will not be able to reduce nitrogen oxide (NOx) emissions effectively, leading to potential regulatory issues.

• Emission Control System Impact: The SCR system relies on AdBlue to function correctly. Without it, the system cannot reduce NOx emissions, which could lead to long-term issues with the catalytic converter.
• Engine Protection: The engine itself is not harmed by the absence of AdBlue. The ECU simply reduces power or prevents starting to ensure compliance with emission standards.
• Maintenance Considerations: While running out of AdBlue doesn’t cause immediate damage, consistently operating the vehicle without it can lead to other issues. Regularly check and refill the AdBlue tank to avoid performance reductions and potential fines.

9. How to Store AdBlue Properly?

AdBlue should be stored in a cool, dry place, ideally between 11°C and 30°C (52°F and 86°F), to maximize its shelf life, which is typically around 12 months. Ensure the container is tightly sealed to prevent contamination and avoid direct sunlight. Proper storage maintains the quality and effectiveness of the AdBlue solution.

• Temperature Control: Extreme temperatures can degrade the urea in AdBlue, reducing its effectiveness. Maintaining the recommended temperature range ensures the solution remains stable.
• Sealed Containers: AdBlue can be contaminated by dirt, dust, and other particles. Storing it in a sealed container prevents these contaminants from entering the solution.
• Sunlight Protection: Direct sunlight can also degrade AdBlue. Store the container in a shaded area to protect it from UV exposure.

10. Is AdBlue Hazardous?

AdBlue is not classified as a hazardous substance and poses no significant health risks under normal conditions. It is non-toxic, non-flammable, and generally safe to handle. However, it can cause mild irritation to the skin and eyes, so it is advisable to wear gloves and eye protection when handling it.

• Safety Precautions: While AdBlue is not highly dangerous, avoid ingestion and prolonged skin contact. Wash hands thoroughly after handling the solution.
• Environmental Considerations: AdBlue is not harmful to the environment but should be prevented from entering drains or waterways in large quantities. Clean up any spills with water.
• Material Compatibility: AdBlue is corrosive to some metals, so use appropriate storage and dispensing equipment made from compatible materials like stainless steel or polyethylene.

11. What to Do if You Spill AdBlue?

If you spill AdBlue, clean it up promptly with water. For small spills, dilute the area with water and mop it up. In the event of a large spill, contain it with a spill kit to prevent it from entering drains or waterways. Ensure that you do not reuse any spilled AdBlue, as it may be contaminated.

• Small Spills: Dilute the spilled AdBlue with plenty of water and wipe the area clean. This prevents any potential staining or corrosion.
• Large Spills: Use absorbent materials from a spill kit to contain the spill and prevent it from spreading. Dispose of the contaminated materials properly.
• Environmental Protection: Prevent AdBlue from entering drains or waterways, as it can disrupt aquatic ecosystems. Follow local regulations for proper disposal of the spilled solution.

12. AdBlue vs. Diesel: Understanding the Difference

AdBlue is not a fuel additive and should never be mixed with diesel. It is stored in a separate tank and injected into the exhaust system to reduce emissions. Diesel is the fuel that powers the engine. Confusing the two can cause significant damage to your vehicle.

• Separate Systems: AdBlue and diesel have completely separate systems in the vehicle. AdBlue is stored in its own tank and delivered to the exhaust system via an injector.
• Potential Damage: Adding AdBlue to the diesel tank or vice versa can cause severe engine damage. Avoid cross-contamination at all costs.
• Correct Usage: Always ensure that AdBlue is added to the correct tank. Refer to your vehicle’s handbook for the location of the AdBlue tank and proper filling instructions.

13. What Happens If You Put AdBlue in the Diesel Tank?

If you accidentally put AdBlue in the diesel tank, do not start the engine. AdBlue can damage the fuel system, leading to costly repairs. The tank needs to be drained and thoroughly cleaned by a professional before attempting to restart the vehicle.

• Immediate Action: Do not turn on the ignition or start the engine. This will prevent the AdBlue from circulating through the fuel system.
• Professional Assistance: Contact a qualified mechanic to drain and clean the fuel tank. They will also inspect the fuel lines and injectors for any damage.
• Preventative Measures: To avoid this mistake, always double-check the fuel and AdBlue tank locations before filling. Use appropriately labeled containers and funnels.

14. What Happens If You Put Diesel in the AdBlue Tank?

If you accidentally put diesel in the AdBlue tank, do not start the engine. Even a small amount of diesel can contaminate the AdBlue and damage the SCR system. The tank and the SCR system components will need to be drained and cleaned by a professional.

• SCR System Damage: Diesel contamination can clog the SCR catalyst and injectors, leading to reduced efficiency or complete failure of the emission control system.
• Component Replacement: In severe cases, contaminated components may need to be replaced. This can include the AdBlue injector, pump, and catalyst.
• Professional Cleaning: Contact a mechanic to safely drain and clean the AdBlue tank and system. They will ensure all traces of diesel are removed before the system is refilled with fresh AdBlue.

15. Understanding AdBlue Prices and Costs

The cost of AdBlue can vary depending on the quantity purchased and the supplier. Buying in bulk, such as in IBCs (Intermediate Bulk Containers), typically offers the best value. Consider the additional costs of storage and dispensing equipment when evaluating the overall expense.

• Bulk Purchases: Purchasing AdBlue in large quantities can significantly reduce the per-liter cost. This is particularly beneficial for businesses with large fleets.
• Storage Solutions: Investing in proper storage tanks and dispensing equipment ensures the AdBlue remains clean and accessible. This can include IBCs, pumps, and nozzles.
• Supplier Comparisons: Compare prices from different suppliers to find the best deal. Look for reputable suppliers who offer high-quality AdBlue that meets ISO 22241 standards.

16. Benefits of Using AdBlue

Using AdBlue offers several benefits, including reduced nitrogen oxide (NOx) emissions, compliance with emission standards, and improved air quality. It helps businesses achieve greener goals and maintain regulatory compliance, ensuring the continued operation of their diesel vehicles.

• Reduced Emissions: AdBlue significantly reduces NOx emissions, helping to protect the environment and improve public health. This is a key benefit for both individual vehicle owners and businesses.
• Regulatory Compliance: By using AdBlue, vehicles can meet stringent emission standards, avoiding fines and penalties. Compliance ensures the vehicles can operate legally.
• Environmental Responsibility: Adopting AdBlue demonstrates a commitment to environmental responsibility, enhancing the reputation of businesses and individuals. This can lead to positive public relations and customer loyalty.

17. Keeping AdBlue Clean and Safe

To maintain the quality of AdBlue, always use dedicated dispensing equipment to avoid contamination. Ensure the tank lid is firmly shut to prevent water and contaminants from entering. If you suspect contamination, do not use the solution, as it can damage the engine.

• Dedicated Equipment: Use separate funnels and containers for AdBlue to prevent cross-contamination with other fluids.
• Secure Storage: Keep the AdBlue tank tightly sealed to protect it from dirt, dust, and water.
• Contamination Check: Regularly inspect the AdBlue solution for any signs of contamination, such as discoloration or sediment. If you notice anything unusual, discard the solution and refill with fresh AdBlue.

18. Ensuring Quality: Is All AdBlue the Same?

Not all AdBlue is the same. High-quality AdBlue should be a colorless, clear liquid that meets the ISO 22241 standard. Purchase AdBlue from licensed suppliers and check for the “AdBlue according to ISO 22241” mark on the container. Be cautious of extremely low-priced AdBlue, as it may be of inferior quality.

• ISO 22241 Standard: This standard ensures the AdBlue meets specific purity and composition requirements. Always look for this certification when purchasing AdBlue.
• Licensed Suppliers: Buy AdBlue from reputable and licensed suppliers to ensure you are getting a high-quality product.
• Visual Inspection: High-quality AdBlue should be clear and free from any sediment or discoloration. If the solution appears cloudy or dirty, it may be contaminated.

19. Where to Buy AdBlue?

AdBlue is widely available at auto parts stores, truck stops, and fuel stations. You can also purchase it online from various suppliers. Ensure you buy from a reputable source to guarantee the quality and authenticity of the product.

• Local Retailers: Auto parts stores and fuel stations are convenient locations to purchase AdBlue.
• Online Suppliers: Many online retailers offer AdBlue in various quantities. Check customer reviews and ratings before making a purchase.
• Bulk Suppliers: For businesses that require large quantities of AdBlue, consider purchasing from bulk suppliers who offer competitive pricing and delivery options.

20. Common Issues and Troubleshooting

• Crystallization: AdBlue can crystallize if spilled or exposed to air, leading to blockages in the injection system. Clean any spills promptly with warm water.
• Sensor Malfunctions: Faulty sensors can cause incorrect AdBlue dosing, leading to emission control issues. Diagnose and replace any malfunctioning sensors.
• Contamination: Contaminated AdBlue can damage the SCR system. Ensure you use clean dispensing equipment and store AdBlue properly.

21. AdBlue System Maintenance Tips

• Regular Checks: Periodically check the AdBlue level and top it off as needed.
• Inspect Components: Regularly inspect the AdBlue tank, pump, and injector for any signs of leaks or damage.
• Follow Recommendations: Adhere to the vehicle manufacturer’s recommendations for AdBlue usage and maintenance.

22. How Can AutoExplain.com Help?

AutoExplain.com offers expert remote support for diagnosing and resolving AdBlue system issues, including error code analysis, component testing, and system troubleshooting. Our experienced technicians provide efficient and reliable assistance, ensuring your vehicle meets emission standards and operates optimally. Contact us via WhatsApp at (+84)967469410 or email at [email protected] for immediate support. Our office is located at 1500 N Grant ST Sten Denver, CO 80203. Visit our website at AutoExplain.com for more information.

23. The Future of AdBlue Systems

As emission standards become increasingly stringent, AdBlue systems are expected to remain a crucial technology for diesel vehicles. Ongoing research and development efforts are focused on improving the efficiency and reliability of these systems, ensuring they continue to play a vital role in reducing air pollution.

• Enhanced Efficiency: Future AdBlue systems may incorporate more precise dosing strategies to optimize NOx reduction and minimize AdBlue consumption.
• Improved Reliability: Advancements in sensor technology and component design will enhance the reliability and durability of AdBlue systems.
• Integration with Hybrid Systems: AdBlue systems may be integrated with hybrid diesel powertrains to further reduce emissions and improve fuel efficiency.

24. AdBlue System Error Codes

When AdBlue system malfunctions occur, they are often indicated by specific error codes. These codes can help technicians diagnose the problem more efficiently. Here’s a table of common AdBlue system error codes, their descriptions, and potential solutions:

Error Code	Description	Potential Solutions
P20E8	Reductant Supply Pressure Too Low	Check for leaks in the AdBlue lines, inspect the pump, and verify the pressure sensor is functioning correctly.
P20EE	SCR NOx Catalyst Efficiency Below Threshold	Inspect the SCR catalyst for damage, check the AdBlue injector, and verify the NOx sensor is functioning correctly.
P204F	Reductant System Performance	Inspect the AdBlue injector, check for blockages in the system, and verify the reductant heater is functioning.
U010E	Lost Communication With Reductant Control Module	Check the wiring and connections to the reductant control module, and verify the module is powered properly.
P2047	Reductant Injector Circuit Open	Check the wiring and connections to the injector, and verify the injector is functioning properly.

Consult AutoExplain.com for in-depth diagnostic support and troubleshooting assistance for these and other AdBlue-related error codes.

25. AdBlue System Regulations Worldwide

The regulations governing AdBlue systems vary by region, but they all share the common goal of reducing NOx emissions from diesel vehicles. Here’s an overview of how different countries and regions approach these regulations:

• Europe: The European Union’s Euro standards (Euro 6 being the current standard) mandate the use of AdBlue systems in diesel vehicles to meet stringent emission limits.
• United States: The U.S. Environmental Protection Agency (EPA) has similar regulations that require diesel vehicles to use DEF (Diesel Exhaust Fluid), which is the same as AdBlue, to reduce NOx emissions.
• Canada: Canada follows similar emission standards as the United States, requiring the use of DEF in diesel vehicles to comply with environmental regulations.
• Asia: Countries like China and India are increasingly adopting stricter emission standards, which often include the use of AdBlue systems in diesel vehicles.

Staying informed about the specific regulations in your region is crucial for ensuring compliance and avoiding penalties.

26. AdBlue System and Fuel Efficiency

Using AdBlue can indirectly improve fuel efficiency. By optimizing the combustion process and reducing NOx emissions, engines can run more efficiently. This can lead to a slight improvement in fuel economy, especially in vehicles designed to take full advantage of the AdBlue system.

• Optimized Combustion: AdBlue helps to optimize the combustion process, leading to more complete burning of fuel and reduced emissions.
• Engine Performance: A well-maintained AdBlue system ensures that the engine operates at its peak performance, which can translate to better fuel economy.
• Reduced Maintenance Costs: By keeping the emission control system clean and efficient, AdBlue can help reduce long-term maintenance costs.

27. AdBlue System and Vehicle Resale Value

Vehicles equipped with properly functioning AdBlue systems tend to maintain higher resale values. As emission standards become stricter, buyers are increasingly looking for vehicles that comply with these regulations. A well-maintained AdBlue system can be a selling point, assuring potential buyers that the vehicle is environmentally friendly and compliant.

• Compliance Assurance: Buyers are more likely to invest in vehicles that are known to comply with current emission standards.
• Environmental Appeal: Environmentally conscious buyers often prioritize vehicles with effective emission control systems.
• Long-Term Reliability: A well-maintained AdBlue system indicates that the vehicle has been cared for and is likely to be reliable in the long term.

28. AdBlue System and Diagnostic Tools

Effective diagnosis of AdBlue system issues requires specialized diagnostic tools. These tools can read error codes, monitor system parameters, and perform component tests. Investing in the right diagnostic equipment is essential for technicians working on modern diesel vehicles.

• Error Code Readers: These tools can quickly identify and interpret error codes related to the AdBlue system.
• Parameter Monitoring: Diagnostic tools can monitor real-time data, such as AdBlue level, injector performance, and sensor readings.
• Component Testing: Some tools can perform specific tests on AdBlue system components, such as the injector and pump, to verify their functionality.

29. AdBlue System Training and Certification

For technicians looking to enhance their expertise in AdBlue systems, various training and certification programs are available. These programs provide in-depth knowledge of AdBlue system operation, diagnostics, and repair procedures. Earning a certification can demonstrate your proficiency and increase your credibility in the automotive industry.

• Manufacturer Training: Many vehicle manufacturers offer training programs on their specific AdBlue systems.
• Industry Certifications: Organizations like the National Institute for Automotive Service Excellence (ASE) offer certifications related to diesel engine and emission control systems.
• Online Courses: Numerous online courses provide comprehensive training on AdBlue systems, covering topics like system operation, troubleshooting, and repair.

30. AdBlue System FAQs

Here are some frequently asked questions about AdBlue systems:

1. What is the shelf life of AdBlue?
   • AdBlue typically has a shelf life of about 12 months when stored properly.
2. Can I mix different brands of AdBlue?
   • It is generally not recommended to mix different brands of AdBlue, as they may have slightly different formulations.
3. What happens if I overfill the AdBlue tank?
   • Overfilling the AdBlue tank can cause spillage and potential damage to the system.
4. Is AdBlue corrosive?
   • Yes, AdBlue is corrosive to some metals, so use appropriate storage and dispensing equipment.
5. How often should I refill the AdBlue tank?
   • The frequency of refills depends on the vehicle’s usage and AdBlue consumption rate.
6. Can I make my own AdBlue?
   • No, it is not recommended to make your own AdBlue, as the purity and composition are critical for proper system function.
7. What are the symptoms of a failing AdBlue injector?
   • Symptoms include increased emissions, reduced engine performance, and error codes related to the AdBlue system.
8. Can I bypass the AdBlue system?
   • Bypassing the AdBlue system is illegal and can result in fines and penalties.
9. What is the ideal operating temperature for the AdBlue system?
   • The ideal operating temperature is between 200°C and 500°C.
10. Where can I find the AdBlue tank location in my vehicle?
    • The AdBlue tank location can be found in your vehicle’s owner’s manual.

Facing AdBlue system issues? Contact AutoExplain.com for expert remote support via WhatsApp at (+84)967469410 or email at [email protected]. Our office is located at 1500 N Grant ST Sten Denver, CO 80203. Visit AutoExplain.com for more information and assistance. Let us help you keep your vehicle running smoothly and efficiently.

The Impact of Driving Conditions on AdBlue Consumption

Driving conditions can significantly impact AdBlue consumption in your Mercedes-Benz vehicle. Here’s what you need to know:

• Driving Style: Aggressive driving, such as frequent acceleration and hard braking, can increase AdBlue consumption.
• Load: Carrying heavy loads or towing trailers can also increase AdBlue consumption.
• Road Conditions: Driving on hilly or mountainous terrain can increase AdBlue consumption.
• Ambient Temperature: Extreme temperatures can affect AdBlue consumption, with higher consumption rates in hot weather.
• Engine Load: Higher engine loads, such as those experienced during uphill driving or when accelerating, will result in increased AdBlue usage.
• Average Consumption: Under normal driving conditions, a Mercedes-Benz vehicle typically consumes AdBlue at a rate of 1-3% of its fuel consumption.