DEF Status
Are you having issues? Select the issue you are having below and provide feedback to DEF.
Have a Problem with DEF? Report Issue
Common DEF Problems & Solutions. Troubleshooting Guide
Complete guide to troubleshoot DEF app on iOS and Android devices. Solve all DEF app problems, errors, connection issues, installation problems and crashes.
Table of Contents:
Some issues cannot be easily resolved through online tutorials or self help. So we made it easy to get in contact with the support team at Yara International, developers of DEF.
Diesel Exhaust Fluid (this app), the operating fluid for SCR vehicles, is a non-toxic solution that transforms harmful Nitrogen Oxide (NOx) emissions from diesel-powered vehicles into harmless water vapor and nitrogen. this app reduces NOx emissions in the exhaust gas system of your SCR equipped diesel vehicle, whether it be a truck, bus, automobile or an off road vehicle. These retail units have been serving bulk this app to the Heavy Duty Vehicle operators and drivers since 2004 and deliver this app in large quantities at a fast pace. These stations are not suitable for car drivers or small tank refills (visit for more information on Passenger cars). We reliably supply the highest quality this app via a network of distributors across the USA and Canada, so you are never far away from an Air1 distributor or retail outlet. Passenger cars and other small tank vehicles. Do not use DEF for any other purpose than Heavy Duty Vehicle refills. Yara sites are not suitable for small vehicles e. g. You can be sure your SCR vehicle will function flawlessly by using Air1's this app. Air1 complies with the highest industry standards in this app. We only list Yara accredited this app stations. The this app Mobile Locator is the official app of Air1®. Air1® is a registered trademark of Yara International ASA.
