Mercedes ML turn signal malfunction

I have a Mercedes ML and had a similar turn indicator problem The issue was a corroded connector in the wiring harness leading to the lamp assembly Inspect the connection points for corrosion or damage Have you checked the indicator light circuit fuse A blown fuse can cause these symptoms

Thanks for the quick reply When you say wiring harness, do you mean the wires going into the lamp socket Is there a specific fuse number or location I should check, or should I check all of them I appreciate the help

Yes, I mean the wires ending at the lamp socket The harness is secured with clips Check the vehicle's owner's manual for the fuse designation and location Given the error message and symptoms, a workshop visit might be needed if the connectors and fuses are fine Their diagnostic equipment can pinpoint the cause better

I checked the connectors and fuses, but the problem remained I took it to a workshop, and it was a defective connector, like you thought The turn signal lamp was replaced The total cost was 95€ Thanks for your help