What Causes the Brake Pedal in a Mercedes-Benz to Be Hard to Press?
1 Answers
Mercedes-Benz brake pedal being hard to press is caused by a vacuum booster pump leak or failure. The force applied to the brake pedal is amplified by the brake booster pump. If it malfunctions, the brake loses its main power source, making it difficult to press. Solutions for brake failure are as follows: 1. Press the brake pedal multiple times to increase the chance of restoring braking force: In case of unexpected brake issues, repeatedly press the brake pedal several times. This applies pressure to the braking system, which may have air in the oil pipes, and with repeated pressing, there is a chance to restore braking force. 2. Turn on hazard lights to alert surrounding vehicles: In a critical situation where the brakes fail, while slowing down, turn on the hazard lights and honk to warn nearby vehicles to be cautious, then call for emergency assistance. 3. Use the handbrake: If it is a mechanical handbrake, slowly pull it up to gradually increase braking force. A sudden, forceful pull can lock the rear wheels, causing a skid, which is more dangerous. For an electronic handbrake, it can also be operated, but extra attention must be paid to steering control. Simultaneously, downshift gradually to use the engine's braking effect to limit speed. 4. Friction deceleration: Look for objects on either side that can be used for collision. Remember not to crash head-on. Hold the steering wheel firmly and use multiple slight collisions to forcibly reduce speed.