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Mercedesbenz B1e9e2a Upd -

Code implies that the computer (SAM module) sent a signal to adjust the left headlight but received an incorrect signal back from the motor or detected an electrical fault in the wiring.

If the button works despite the code, a technician can clear the "Stored" fault. If it is "Active" and the button fails, the switch block or the steering wheel clock spring may need inspection. mercedesbenz b1e9e2a