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Where is AdBlue injected?
exhaust pipe
AdBlue is injected from the vehicle''s dedicated AdBlue storage tank into the exhaust pipe, which is in front of the SCR catalyst, but downstream of the engine. As it is heated in the exhaust, the AdBlue changes into ammonia (NH₃) and carbon dioxide (CO₂).
Why do AdBlue injectors leak?
The additive (AdBlue) can leak out because the supply line does not engage completely with the injector. This information may also apply to other vehicle models with the same SCR system.
exhaust pipe
AdBlue is injected from the vehicle''s dedicated AdBlue storage tank into the exhaust pipe, which is in front of the SCR catalyst, but downstream of the engine. As it is heated in the exhaust, the AdBlue changes into ammonia (NH₃) and carbon dioxide (CO₂).
Why do AdBlue injectors leak?
The additive (AdBlue) can leak out because the supply line does not engage completely with the injector. This information may also apply to other vehicle models with the same SCR system.





