What Causes the Mercedes-Benz Active Brake Assist System to Be Restricted?
2 Answers
Mercedes-Benz Active Brake Assist System may be restricted due to the following reasons: Electromagnetic interference: The radar sensor system may temporarily stop functioning due to interference from nearby TV stations, radio stations, or other sources of electromagnetic radiation; Low vehicle voltage: The functional range of the Active Brake Assist System may also be limited due to heavy rain or snow causing functional impairment. A malfunction in the radar sensor system could be due to dirty sensors. If the front radar sensor system is dirty, the Active Blind Spot Assist System will attempt to correct the driving path and apply braking, accompanied by a warning sound.
While researching Mercedes-Benz models recently, I focused on the issue of restricted Active Brake Assist and concluded it's mainly caused by sensor interference. For instance, radar and camera systems are highly sensitive - if the lens is dirty, covered by raindrops or insects, the signal gets disrupted. Or components may have poor contact due to vehicle vibration. There's also the possibility of software bugs, where incorrect initialization after system updates triggers warnings. From multiple case analyses, this frequently occurs in winter with ice and snow, causing the system to automatically disable functions to prevent false braking. It's best to regularly clean the radar area on the front bumper. When encountering issues, try restarting the engine; if that doesn't work, visit a professional shop to scan diagnostic codes rather than attempting DIY fixes to avoid errors. For safety, remain vigilant and drive cautiously manually when the system is restricted.
