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Mercedes Sprinter AdBlue fault codes – P20E8 to P204F explained
Sprinter drivers love the van but hate the blue DEF lamp. Since 2021 I’ve cleared more than 250 Sprinter AdBlue faults around Stoke-on-Trent, and the P-code gang is almost always the same: P20E8, P20E9, P13DF, P204F, U029E. Mercedes’ own November 2024 technical bulletin lists them as the top warranty claims…
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Winter AdBlue Heater Fault? Keep Your Van Running in Stoke
-3 °C at 6 a.m. on Victoria Road, windscreen white, courier deadlines calling. You key the Sprinter and the blue light joins the crackling frost: P13DF – heater circuit open. No heater means thick, jelly-like urea that the pump can’t pull, and the countdown to “No start” begins. Each winter…