Mercedes Sprinter Electric Turn Signal Problem

Sounds like a common electrical fault Have you checked the connector for corrosion or loose pins Is the bulb actually functioning, or is it completely dead A failed bulb can throw similar error codes even if the connector is the primary issue

I examined the connector, but perhaps not thoroughly enough The bulb appears to be functioning intermittently Could this sporadic illumination be the problem

Intermittent operation definitely points towards a failing bulb or a poor connection at the bulb socket While the code might indicate a broader electrical issue, I'd put my money on the bulb being the culprit, or the socket not making good contact Still, with error codes and a warning on the dash I would advise you to visit a workshop

I re-examined the bulb socket and discovered a minuscule amount of corrosion After a thorough cleaning and a fresh bulb, the issue is resolved The error messages have vanished, and the turn signal lamp now performs perfectly Thank you for the help