You ever wonder how DEF (Diesel Emission Fluid) actually works? In this tip clip your instructor Ryan Barr shows you how a mixture of 67.5% water and 32.5% urea chemically changes the NOX emissions to a mixture of water and nitrogen.
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The Essentials Of TDI
View CourseThis program will enable the technician to properly identify, understand and diagnose the most common 1996 and newer VW and Audi passenger car diesel systems. All three designs will be reviewed; early VE-E, Unit Injector and Common Rail Diesel injection systems.

