What is the reason why the Mercedes-Benz poff button light cannot be turned off?
3 Answers
The reverse assist system is malfunctioning, and the indicator light remains on, which means the system failed to start properly. Below is relevant information: Mercedes-Benz: Mercedes-Benz is a German automotive brand and one of the premium car brands. It is renowned for its perfect technical level, stringent quality standards, innovative capabilities, and a series of classic coupe models. The Mercedes three-pointed star is one of the automotive and brand logos. In October 2016, Mercedes-Benz ranked 9th in the list of the world's 100 most valuable brands. Car Introduction: From the birth of the automobile to today, the history of Mercedes-Benz is not only a legend but also represents the development history of the human automotive industry. Now, Mercedes-Benz has celebrated its centenary, yet its name, like the company's slogan, still resonates loudly.
I think the poff button light can't be turned off, which might be related to a malfunction in the button switch itself. I encountered a similar situation not long ago—the button light stayed on no matter how many times I pressed it, making it really glaring when I drove at night. Later, I took it to a repair shop, and they found that the internal contacts of the button were stuck. The technician said it could be due to circuit aging or dust causing a short circuit. He also reminded me that in high-end cars like Mercedes-Benz, there are many electronic modules, and if the button light stays on, it might indicate the system is continuously running, increasing power consumption. If other components get damaged, it could become a bigger issue. I suggest you first check if the fuse box is functioning properly, then consider going to a 4S shop for a comprehensive diagnosis. Don’t delay too long—even small faults can lead to bigger risks, so timely action can save you trouble.
The POFF button light won't turn off, common causes include physical button damage, wiring short circuits, or control module failure. From my daily repair experience, Mercedes button lights typically use LED backlighting designed to operate with the system switch. If it stays constantly lit, it might be due to worn contacts failing to disconnect or loose wiring connections causing an open circuit. Additionally, a blown fuse can disrupt circuit signals, resulting in the light staying on. You'd better try disconnecting the battery to reboot the system first. If that doesn't work, check the fuse location - usually in the driver's side fuse box. Never attempt DIY disassembly in this case, as electronic components are sensitive and fragile. Have a professional technician check the voltage with a multimeter for accurate diagnosis. Safety first - don't let minor issues escalate into major problems.
