AdBlue
These are AdBlue Indicator symbols, which references a fluid that is necessary to the Selective Catalytic Reduction (SCR) system. SCR is an emissions control technology used by some diesel engine manufacturers. The indicators may appear in yellow/amber or red, depending on the severity of need.
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So, what to do?
Both indicators include the text AdBlue, or Blue, which is a fluid used in the system. The first indicator includes the image of a downturned bottle of fluid. Another has the same words shown above a wavy line, meant to show the fluid’s level. When seen in yellow/amber, it indicates that fluid is low. If it appears in Red, the system must have fluid added, or engine emissions will be excessive.
Another adds a wrench or spanner to the AdBlue text. In yellow/amber, it indicates an issue with the system. In red, the system needs immediate attention or damage may be done to the engine and/or its emissions control systems. Only a qualified service shop or dealer will be capable of repairing the system.
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Remember that only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.
These posts are for information sharing purposes only, and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.
Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.
The author has 25 years of automotive experience and has assembled the most extensive collection of symbols and warning lights anywhere (over 1,000!) and can help you open and start any keyless start car with a dead key fob battery. BA, St. Joseph’s College, ME: MS, Rensselaer Polytechnic Institute, NY