Volkswagen Touareg Add Blue system failure with no restart after 300 miles despite full DEF on Volkswagen Touareg

Some Volkswagen Touareg owners report experiencing AdBlue system failures that prevent the engine from restarting after 300 miles, even with a full Diesel Exhaust Fluid (DEF) tank. This issue may stem from a malfunctioning level sensor in the DEF tank, which could necessitate a complete tank replacement. Additionally, some owners have found that draining and replacing the AdBlue has resolved the problem. It is worth noting that Volkswagen may cover these repairs under the Dieselgate extended warranty. To reset the system, some owners recommend turning the ignition on for 30 seconds without starting the engine. If warnings indicate a malfunctioning AdBlue system, it is advisable to seek assistance from a diesel mechanic promptly to avoid further complications.