Tag: Sprinter Van Illuminated Check Engine Light Reasons

A DEF message and a check-engine light can appear at the same time, but they do not always identify the same fault. The exact dashboard wording, whether the light is steady or flashing, stored fault information, and how the van runs all matter. Record the message before switching the ignition off. Do not clear codes … Continue reading “Why are DEF and Check Engine Lights Common in Sprinter Vans?”