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    4. : What problems can AdBlu cause on a Volkswagen Caddy?

What problems can AdBlu cause on a Volkswagen Caddy?
Years 2020-2027

Answer

The classic error that is generated by the AdBlue on the control unit is P20E8, which is connected to the low pressure of the additive. The first suspect of this malfunction is the delivery pump to the SCR injector, but be careful: it could simply be the AdBlue crystallisation in the tank. In this case - as AdBlue is water soluble - simply wash it with water, and the problem disappears.
Posted on: 11 February 2023 by ScegliAuto

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