How to clean AdBlue injector (VW, Audi, SEAT, Skoda)

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White hard substance bursting from engine hose connection. What is this? Should I ignore or can I DIY a fix? Is this the end of the line for this 2014 VW Passat

Anyone who replaced the Adblue line from the injector and back to the Adblue tank? - Skoda Superb Mk III (2015 - 2023) - BRISKODA

How to clean the AdBlue Injector

VW AUDI SEAT SKODA 2.0 TDI 184 Dyno Tuning

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For models: Volkswagen: Passat 2009-2015 Passat CC 2009-2012 Caddy 2016- Crafter 2006-2017 Sharan 2011-2016 Touareg 2011-2012 Audi: A4 2008-2015 A5

Adblue urea injector

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