Mercedes-Benz E350 master brake replacement issue due to stability problems on Mercedes-Benz E350

Some Mercedes-Benz E350 owners report experiencing various brake system problems, including issues with service brakes, brake actuator malfunctions, and brake pedal pressure loss. These brake-related issues can lead to costly repairs, with estimates ranging from $1,700 to $3,000 depending on the specific problem. Common causes of brake stability problems include internal leaks in the brake system, faulty master cylinders, and accumulator leaks. Due to numerous reported failures, Mercedes-Benz replaced the Sensotronic Brake Control (SBC) system with conventional brakes in the third generation E-Class to enhance stability. Some owners have identified that soft brake pedals can stem from rotten brake lines, which can be repaired through DIY fixes. To prevent stability problems, it is crucial for owners to regularly check for issues such as dragging brake calipers, sticking calipers, plugged rubber brake hoses, or a faulty master cylinder.