
Mercedes systems generally default to the parking assistance system. The reasons for the Mercedes parking assistance system stopping operation include the use of a temporary spare tire; damaged sensors or damaged bumpers; sensors being blocked by components installed on the vehicle, such as bumper covers; the vehicle being used to transport loads exceeding its capacity, etc. How the Parking Assistance System Works: The parking assistance system includes ultrasonic sensors embedded in the front and rear bumpers, each with a diameter of approximately 15mm. The ultrasonic detection signals emitted by the sensors reflect when they encounter obstacles. Upon receiving the reflected signals, the sensors promptly feed them back to the system for distance calculation, alerting the driver to the distance between the vehicle and obstacles outside the field of view through sound, video, etc. The Function of the Parking Assistance System: The parking assistance system can detect obstacles outside the field of view and inform the driver of the distance between the vehicle and the obstacles through certain signals. Whether it's children playing behind the car or low-lying objects such as stone pillars, fences, or fire hydrants, the system can detect them immediately.

As a veteran Mercedes technician, system failures can stem from numerous causes. The most frequent culprit is battery issues. Mercedes' electronic systems are power-hungry, and aging batteries often fail to cope in winter, causing unstable power supply that leads to various module malfunctions. Software bugs are also common – the ECU system tends to crash when updates lag behind. Faulty sensors like ABS sensors can also trigger complete vehicle paralysis. Circuit short circuits and moisture corrosion are additional risks. If this happens, stay calm, pull over safely immediately, and avoid restarting the engine to prevent further damage. Check the dashboard for warning lights. Prevention tips? Never skip routine maintenance: annual battery health checks and timely software updates are crucial. If problems persist, visit a professional workshop for diagnostic scans to pinpoint error codes for precise repairs. These basic maintenance steps can prevent major headaches.

Last time I drove my Mercedes, the system suddenly went on strike—it was really scary! It might have been because the battery was too old, or the wiring was loose—after a lot of rain, moisture seeped into the connectors and caused issues. Mercedes' electronics are particularly sensitive; for example, when I installed an in-car charger, overloading it could also cause the system to crash. The solution is simple: pull over and try restarting; if that doesn’t work, don’t push it—call a tow truck to take it to the dealership. Make it a habit to check the dashboard response when starting the car to catch any abnormalities early. Don’t slack on maintenance—replace the battery every 3 years or so, and regularly clean the dust from the wiring harness connectors. Experience tells me that prevention is better than repair, so you don’t end up stranded on the road.

A malfunctioning Mercedes system can be quite dangerous, and safety should never be overlooked. It's usually caused by electronic failures: unstable power supply such as aging batteries or abnormal alternator output; software conflicts that emerge when updates are delayed; or circuit faults like moisture-induced short circuits. If this occurs, immediately pull over and turn off the engine—don't risk continuing to drive to avoid losing control. This is common during humid seasons or after long trips with inadequate maintenance. Maintenance tips? Check the dashboard status before each start-up, schedule regular system scans at professional shops, and keep software versions updated. These small steps can be lifesavers.

As a DIY-loving car enthusiast, I have a set of methods for dealing with Mercedes system issues. First, check for simple causes: loose battery terminals—use a multimeter to measure voltage, which should be above 12V; or if warning lights on the dashboard are on, record the codes to self-diagnose potential faults. For more complex issues like software crashes, try disconnecting the negative terminal for a few minutes to reset the ECU. But don’t mess with the wiring harness! If the dashboard is unresponsive or the system is completely blacked out, it’s likely a deeper issue like module failure—stop driving and call for professional help. Daily prevention: clean electrical connectors during maintenance and avoid parking on wet grass.


