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Q: 2005 Mercedes-Benz Sprinter 2500

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My Check Engine Light has been on for awhile and it doesn’t turn off. I get the code for three and four glow plug, as well as the crank sensor. I replaced those, but the Check Engine Light is still on. Can you help me figure out what’s wrong?

The Check Engine light must be reset by a Scan/Clear tool that supports the Sprinter. The computer will not reset it on its own.

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