Where is the brake vacuum control module of Mercedes-Benz C200? What is the difference between the brake of this model and the brake of ordinary cars?
Answer: Since you are repairing a Mercedes-Benz car, you should configure a Mercedes-Benz car fault diagnosis computer. The computer contains data. Enter the 17-digit code of the car to query the location of all parts. Mercedes-Benz C203 chassis, ESP, BAS systems share the same computer in the W203 model, installed in the brake ESP master cylinder. The VP system (brake vacuum control module) computer is located under the passenger side pedal.
The brake system of ordinary cars only has a vacuum control part, and it is not electronically controlled. The brake system of this car is not only electronically controlled, but also divided into three parts.
1.ESP: Electronic body stability function. By monitoring the four-wheel speed, lateral acceleration sensor, rotation acceleration sensor and steering wheel angle signal, it automatically adjusts and distributes the braking force during driving and braking, and changes the engine power and transmission shifting, and actively controls the body safety and stability.
2.BAS: Auxiliary braking function. During emergency braking, the ESP (BAS) computer senses the brake position and emergency situation based on the brake pedal travel switch signal, controls the BAs solenoid valve to open, and the brake hydraulic oil pushes the piston to increase the working stroke of the master pump plunger, thereby increasing the braking force.
3.VP: Brake boost vacuum control function. When the vacuum degree of the diesel engine is low or the gasoline engine is cold, the computer controls the vacuum pump to increase or maintain the vacuum degree entering the brake vacuum booster device, thereby increasing or maintaining the braking effect.