amelieblitz1
Focus AdBlue System Error
Summary of the thread
A 2015 Ford Focus diesel is experiencing an AdBlue system error, with the dashboard indicating the tank is empty despite refills, preventing the engine from starting. The issue may stem from a faulty AdBlue output from the tank to the dosing unit, possibly due to a malfunctioning pump or a blockage in the lines. The error code P20E8 suggests a problem with the AdBlue delivery system, and professional diagnosis and repair are recommended to resolve the issue.
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4 comment(s)
amelieblitz1 (community.author)
AdBlue system maintenance has been neglected. No prior emissions control problems, just followed service intervals. The error code is around 'P20E8 Reductant Injection Valve Circuit Range/Performance'. Does this confirm the AdBlue pump or line failure?
josephlight1
That P20E8 code reinforces the suspicion of a malfunctioning AdBlue delivery system. Given the code and your description, I'd lean towards a problem with the AdBlue pump or a blockage in the lines. You could try diagnosing it yourself, but cleaning or replacing the pump/lines can be tricky and requires specialized tools. A complete failure will leave you stranded, so I recommend a qualified workshop for diagnosis and repair. It could be a straightforward fix, but better safe than sorry.
amelieblitz1 (community.author)
Thanks for the advice. I'll take the Ford Focus to a professional. Hopefully, the repair won't exceed 250€. I will post the final diagnosis and resolution for others with similar AdBlue issues. Thanks again!
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FORD
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FOCUS
josephlight1
The 'tank empty' error and no-start strongly suggest an AdBlue delivery problem. A faulty level sensor is possible, but with 249388 km on your 2015 diesel Focus, a blockage or failure in the AdBlue pump or lines to the injector is more likely. Has the system been regularly maintained? Any previous emissions control issues? What's the error code?