How to Adjust When Mercedes Electric Seat Suddenly Fails?
2 Answers
If the fuse is in good condition, then the fault in the control circuit should be checked. Check whether the electric seat switch and the seat motor are damaged. If they are intact, then check the line connectors and whether there is a line break fault. If the vehicle voltage drops, the seat heating device will automatically shut off to ensure sufficient power supply for the engine control system. Turn off the seat heating or ventilation in time after parking to prevent excessive electrical load during the next startup.
I just drove a Mercedes, and the electric seat malfunction was a real headache. Here's a brief rundown of my experience: First, don't press buttons randomly to avoid damaging components. Check if the fuse is blown—the Mercedes seat circuit has an independent fuse in the fuse box, usually located under the passenger-side footwell or in the trunk. The manual specifies the exact location. Try replacing it with a spare fuse. If the buttons don't respond, try turning off the ignition and waiting a few minutes before restarting the car, as the electronic system sometimes needs a reset. If that doesn't work, it might be a faulty seat adjustment module or a stuck motor—don't force the manual lever. In any case, safety first—head to a 4S shop or a professional repair center for diagnosis. Mercedes parts are expensive, so avoid DIY repairs. It's better to check the related circuits during regular maintenance to prevent issues.
