Before Using the Program – Important Checks
We recommend trying the following steps before using this program:
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✅ Check the vehicle’s battery – make sure it is fully charged and in good condition.
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✅ Try a different key if available.
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✅ Use the original key only, without any other keys or transponders near the ignition.
Common Causes of START ERROR on Mercedes
The START ERROR message is often caused by one of the following:
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Jump starting the vehicle
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Weak or low battery
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Faulty or missing key transponder
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Faulty antenna coil at the ignition
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ECU fault
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Fuel pump fault
