Mercedes AdBlue Problems
AdBlue is just another name for Diesel Exhaust Fluid or DEF. This solution of urea in water is injected into exhaust gases as a part of the exhaust treatment system called selective catalytic reduction or SCR.
This process converts up to 90% of the vehicle’s harmful nitrogen oxides into nitrogen and water. Modern diesel-powered cars combine this with other emission control systems to meet the highest emission standards while retaining high engine power outputs and fuel economy.
How does it work?
AdBlue is stored in an external tank with an internal delivery pump. From there, it is injected into the stream of exhaust gases through the injection valve. As AdBlue would freeze in low outside temperatures, the heater element is installed into the tank to prevent this.
An Electronic Diesel Control unit or EDC controls activation and AdBlue dosing. This regulation is based on several parameters:
- exhaust temperature,
- NOx content before and after SCR catalytic converter
- the operational readiness of the AdBlue system itself.
- Be aware that the AdBlue system in your Mercedes will start working only when all the parameters are fulfilled.
Common faults
Although relatively simple, this system is very sensitive and delicate. Some of the common faults include:
- In-tank heater element, which burns out. The only solution is to replace it with a new one.
- The injector and connecting tubing clogged up. As this system works only at high exhaust temperatures, urea solution can crystallize if you have frequent short journeys.
- The NOx sensor can break or give false readings.
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As you embark on this journey of customization, remember that every curve of the road is an opportunity to redefine your drive. Adblue dpf Solutions invites you to embrace the freedom of tailored performance. Your Mercedes, your rules.
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our technicians in action
Witness the expertise of our technicians through captivating videos and images. Our skilled team tackles Adblue challenges with precision, showcasing the transformative process that turns roadblocks into solutions. See firsthand how we elevate your Mercedes experience.
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