Vehicle Questions and Answers
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Typically, the most effective way to clear a Check Engine Light (CEL) is to first address the root cause behind it. You can purchase a bluetooth OBD-II dongle for less than $20 from Amazon, along with the necessary software, to check and reset the code using your smartphone. Alternatively, you can use various OBD-II scanners for this task, or if you're near an AutoZone, take your van there to have them read and clear the code for you. Specifically for your Mercedes Sprinter, resetting the "Service Soon" lights involves turning the key to the "On" position without starting the engine, pressing the button on the lower left of the steering wheel to check for service notifications, then holding down the reset button on the instrument panel's left side for at least three seconds. Release the button, press it again until the reset is confirmed on the display. Wait 60 seconds after turning off your van, then switch off the engine. The service light should no longer be illuminated... until next time, that is!
To turn off the check engine light in a Mercedes Sprinter, you should use an OBD II scan tool to erase the code.