If your dashboard displays the dreaded message "Emissions fault: Engine starting prohibited in 700 miles" along with the P20E8 error code, you are facing a major design flaw in Stellantis' BlueHDi engines.
The Mechanical Truth about P20E8
Code P20E8 indicates that the reductant fluid (AdBlue) pressure is too low. Dealerships often claim the pump has failed and needs a full tank replacement. What they don't tell you is that the pump burned out due to a vacuum effect. As the AdBlue crystallizes, it clogs the breather valve, causing the plastic tank to collapse under suction.
This is a known manufacturing defect, often classified as a hidden defect under European consumer protection laws.
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Don't pay £1,200 for a replacement without a fight. Register your case in our global registry to force Stellantis to take full responsibility for this defective component.
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Join the national registry to defend your rights under the warranty of hidden defects (Art. 1641).
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