Browse

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Pet Supplies Sporting Goods Ticket Toys Games Transportation Others

Used Cars New Cars Others

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

Why Do Brakes Lock Up?

1 Answers

GraceLynn

07/30/25 5:01am

Brake lock-up can occur due to the following reasons: 1. The master cylinder rubber cup is stuck and fails to return to its original position; 2. Issues with the fit between the master cylinder rubber cup and the master cylinder inner diameter; 3. The brake piston fails to return or returns poorly; 4. Insufficient rigidity of the brake disc. When the braking system is used frequently, the brake disc may deform under high temperatures due to insufficient rigidity, leading to wheel lock-up during subsequent use. Brake lock-up refers to the situation in vehicles without ABS (Anti-lock Braking System) where the driver forcefully presses the brake pedal while driving, causing the wheel speed to rapidly decrease. When the braking force exceeds the friction between the wheel and the ground, the wheel locks up. The consequences include reduced friction between the tire and the ground, leading to dangerous phenomena such as skidding, fishtailing, and sudden spinning.

Was this review help?

14

2

Share

More Forum Discussions

What is the air intake volume in kilograms per hour for the Mercedes-Benz 272 engine?

The idle air flow rate of the Mercedes-Benz 272 engine should be around 2.5g/s. Normal idle flow rate: Under normal conditions, the air flow signal data of the Mercedes-Benz 272 engine at idle is approximately 2.5g/s. If it is less than 2.0g/s, it indicates an air leak in the intake system. If it exceeds 4.0g/s, it suggests additional load on the engine. The normal air flow value varies for each engine model, with larger displacement engines having higher air flow values. Flow sensor fault classification: If the air intake volume increases, the ECU controls the intake volume, and vice versa. Faults in the air flow sensor are divided into two categories. One is when the signal exceeds the specified range, indicating a fault in the air flow sensor. Modern electronically controlled vehicles have a fail-safe function.

How often should the Mercedes-Benz fuel filter be replaced?

Mercedes-Benz fuel filter should be replaced every 20,000 to 30,000 kilometers or every 2 years. The fuel filter is also known as the gasoline filter or fuel filter. Function of the fuel filter: The fuel filter is used to filter gasoline, which may contain certain impurities. The fuel filter helps to remove these impurities, preventing them from participating in the ignition and combustion process. Effects of not replacing the fuel filter: If the fuel filter is not replaced for a long time, it may cause difficulties in starting the car, poor engine performance, and shaking phenomena during driving or idling. All these issues are caused by the fuel filter not being replaced in time, leading to clogging, insufficient gasoline combustion, and reduced fuel pressure.

What is the Bora P1624 fault code?

Bora P1624 fault code, applicable to Audi and Volkswagen, means the Malfunction Indicator Lamp (MIL) request signal is currently active. False fault: The fault light is on, but there is no actual fault with the car itself. Since the ECU can only recognize voltage, occasional voltage fluctuations may be interpreted as a fault by the ECU, causing the fault light to illuminate and record the issue. However, this does not affect the vehicle. In such cases, simply use an OBD scanner to clear the fault code. Intermittent fault: The fault light turns on and off sporadically, and the fault appears and disappears. A common scenario is a loose sensor wiring harness or poor contact in a connector, leading to intermittent signal transmission, which falls under this category. Genuine fault: This is usually accompanied by noticeable fault symptoms.

How to use Ford's S gear?

When climbing a slope or exiting an underground garage, you can use the S gear for climbing. Introduction to car gears: Car gears usually consist of D gear, R gear, P gear, N gear, and S gear. Among them, D gear is the forward gear, R gear is the reverse gear, P gear is the parking gear, N gear is the neutral gear, and S gear is the sport gear (for models equipped with sport mode). Precautions for gear usage: The vehicle must be completely stopped before using the P gear, otherwise the mechanical part of the automatic transmission may be damaged. When the vehicle is parked and not in use, the gear should be in this position, at which time the wheels are mechanically locked, and the handbrake can be used to prevent slipping. Damage may occur.

Where is the transmission of the Volkswagen Tharu located?

The transmission of the Volkswagen Tharu is located at the rear connection point of the engine. Functions of the transmission: Changing the transmission ratio to expand the range of torque and speed variations of the drive wheels, enabling the vehicle to reverse while maintaining the same engine rotation direction. It also allows for neutral gear to interrupt power transmission, facilitating engine start-up, gear shifting, and power output when needed. The transmission consists of a gear transmission mechanism and a control mechanism, and a power take-off can be added if necessary. Types of transmissions: They are divided into manual and automatic transmissions. Manual transmissions mainly consist of gears and shafts, achieving speed and torque variations through different gear combinations. Automatic transmissions (AT) are composed of a torque converter, planetary gears, and a hydraulic control system, achieving speed and torque variations through hydraulic transmission and gear combinations.

Does the BMW 5 Series not have tire pressure monitoring?

The BMW 5 Series is equipped with tire pressure monitoring, specifically a direct tire pressure monitoring system. This system allows the driver to view real-time tire pressure data, enabling constant awareness of tire inflation levels. The tire pressure monitoring system operates by either recording wheel rotation speeds or utilizing electronic sensors installed within the tires to automatically monitor various tire conditions in real-time, providing effective safety assurance during driving. The BMW 5 Series is a mid-to-large-sized sedan with body dimensions of 5047mm in length, 1860mm in width, and 1491mm in height, featuring a wheelbase of 3108mm. In terms of powertrain, the BMW 5 Series is powered by a V8 engine delivering maximum power output of 245 kilowatts and peak torque of 450 Newton-meters, with a top speed of 250 kilometers per hour.

Trending Ranking

What to Do When the Car Suddenly Fails to Start?

Where Is the Keyhole for Push-Button Start?

What to Do When the Car Doesn't Start and the Motor Doesn't Respond?

Where is the oil sensor located on the Audi A3?

Can Toyota Hybrid Vehicles Get Green License Plates?

What are the reasons why the Mercedes-Benz rearview mirror cannot be opened?

What Maintenance Does a Car Need After Driving 50,000 Kilometers?

Which is larger, the Xingyue L or the Xingyue S?

How to Adjust the Headlight Height of Accord?

Where is the door sensor switch of Volkswagen Lavida?

More Forum Discussions

Where is the oil pressure sensor located on the Wuling Hongguang?

How to Add Refrigeration Oil?

What is the rim size of the BMW 5 Series?

Where is the Oil Pressure Sensor Located on the Haval H2S?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.