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EQV electric seat issue resolved

My 2020 Mercedes EQV electric with 98850 km has a non-functional passenger electric seat adjustment. A diagnostic scan shows an error pointing to the seat. I've checked the fuses, which are fine. I suspect a discharged or defective battery within the seat mechanism. Has anyone else had similar electric car seat problems?

4 comment(s)

Sounds familiar. I had something like that with my EQV. Have you checked the seat harness? That fixed it for me.

When you say seat harness, are you referring to the main connector under the seat? Or were there specific wires within the harness that showed signs of damage? I'm trying to narrow down the diagnostic before potentially replacing the entire seat adjustment system.

Yeah, I meant the main connector under the car seats. Wiggling it didn't help, but taking it apart and cleaning the contacts did the trick. If that doesn't fix it, probably best to take it to a workshop.

Thanks for the advice. Turns out it was related to a voltage issue affecting the seat adjustment module. After replacing a heavily discharged battery that cost 290€, the power seats are now working properly again. Your suggestion about the seat harness helped me focus my efforts. I appreciate the help.

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