Can You Still Drive When the Mercedes Brake Pad Warning Light Comes On?
2 Answers
You should not continue driving when the Mercedes brake pad warning light comes on. Here are the relevant details: 1. Classification of Brake Pads: Automotive brake pads can be categorized by type into those used for disc brakes, brake shoes for drum brakes, and linings for large trucks. Brake pads are mainly divided into the following categories: metal brake pads and carbon-ceramic brake pads. Metal brake pads are further divided into low-metallic and semi-metallic brake pads, with ceramic brake pads classified under low-metallic. Carbon-ceramic brake pads are used in conjunction with carbon-ceramic brake discs. 2. Working Principle: The working principle of braking primarily relies on friction. By utilizing the friction between the brake pads and the brake disc (or drum), as well as between the tires and the ground, the kinetic energy of the moving vehicle is converted into thermal energy through friction, bringing the car to a stop. A good and efficient braking system must provide stable, sufficient, and controllable braking force, along with excellent hydraulic transmission and heat dissipation capabilities. This ensures that the force applied by the driver on the brake pedal is effectively transmitted to the master cylinder and individual wheel cylinders, while avoiding hydraulic failure and brake fade caused by excessive heat. If the brake pad warning light comes on, it is crucial to replace them promptly, as it is a matter of life safety.
My Mercedes had a brake pad warning light come on last year when I was rushing to pick up my kids from school. The warning light means the brake pads are almost worn out—though the car is still drivable, it’s extremely dangerous. The braking distance increases, making it nearly impossible to stop in an emergency. Once, an e-bike suddenly cut in front of me at an intersection, and even slamming the brakes almost caused a rear-end collision. My advice: if you see the warning light, drive straight to a service center and keep your speed under 60 km/h. Back then, I had the dealership urgently deliver new brake pads and replace them on-site, which cost over 2,000 RMB, but it was worth the peace of mind. If the pads wear down to the limit, they can damage the brake rotors, and then the repair bill could skyrocket to tens of thousands. Remember, never drive long distances with the warning light on—if something happens, you’ll regret it deeply.
