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Hi, if both the speedometer and the odometer stopped working the problem is most likely going to be the sending unit in the transmission or the speedometer itself. I'd suspect the sending unit in the transmission will be the problem.
Let me know if you have any questions.
You can perform a voltage test at the connector on the instrument cluster. I can send you the test sequence.
Click on the instructions below.
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Hi, I'm just following up with you on the Mercedes. Do you need anymore help with this?
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