How to Solve the Brake Lock-up Issue in Jetta?
2 Answers
If you notice brake lock-up while driving, you can engage first gear or reverse gear and use the vehicle's power to release the wheel lock-up. However, remember not to press the accelerator too hard. When the vehicle experiences lock-up, it is essential to operate with caution and composure. Relevant information about wheel lock-up is as follows: 1. Introduction: Wheel lock-up occurs when the brake (including disc and drum types) clamps the tire, causing no relative movement between the tire and the brake, resulting in the tire sliding relative to the ground. 2. Classification: Dynamic wheel lock-up can be further divided into front-wheel lock-up, rear-wheel lock-up, and simultaneous front and rear wheel lock-up. If the front wheels lock up and skid first during driving, the vehicle will lose steering capability; if the rear wheels lock up and skid first, the car may experience side-slip even under slight lateral force.
I've repaired many Jetta models, and brake lock-up is mostly related to brake system sticking. Common causes include rust adhesion of brake pads or brake drums, especially in humid weather or after prolonged parking. Additionally, the brake caliper piston may get stuck due to dirt or aging and fail to retract, or air in the brake fluid may cause hydraulic system failure. When addressing the issue, first try gently rocking the vehicle back and forth to see if the brake pads can loosen. If that doesn't work, avoid forcing it to drive, as this can damage more components. Take it to a professional repair shop to inspect the brake components, clean or replace rusted parts, and update the brake fluid if necessary. Prevention is key—avoid pulling the handbrake tightly in damp areas when parking and perform regular brake maintenance. Addressing the issue promptly can avoid major repairs and save a significant amount of money.
