4 Identification Signs of Broken Brake Booster

4 Best Signs to Identify a Broken Brake Booster Garage Thanh Phong Auto Hcm 2024
Latest update date: February 31, 01

Brake assist is an important part of automobile brake system, it has the effect of reducing the braking force to make the deceleration process easier and faster. However, if this part is damaged, it will be extremely dangerous to the user. So car owners should know the things Indication when the brake assist bulb is damaged for easy handling. Check out the following article for more info.

The brake assist ball (or brake assist servo) is the part located between the brake pedal and the master cylinder. It is to amplify the pressure from the brake pedal to reduce the reaction force.

Signs of a Broken Brake Booster
What is a Brake Booster? Structure, Principle of Operation

From there, the brake pads will press the brake disc with maximum force to help the driver easily stop the vehicle without having to apply too much force on the pedal. This part has to work regularly so it is easily damaged. Knowing the signs will help you quickly handle the problem, ensuring safety for yourself and your loved ones.

1. Hard, heavy brake pedal

When the Pedal has a problem, it can be easily felt because it will become harder, heavier than usual. At this time, it is necessary to apply strong force to the pedal for the brake to be eaten. Therefore, during use, if you feel that the brake pedal becomes stiffer, you should check and replace the brake assist bulb when necessary.

2. The brake pedal is higher than normal

When the brake assist bulb fails, in addition to the brake pedal becoming stiffer, it is higher than normal, forcing the driver to raise the foot higher to use it, so it is extremely inconvenient. In particular, if in some case you need to step on the brake quickly, an unexpected incident will be very dangerous if the brake is not depressed in time.

How to Identify a Broken Brake Booster
Brake Pedal Is Higher Than Normal

Therefore, when you notice the above signs, don't wait any longer, immediately take your car to the nearest garage for assistance.

3. Braking distance is longer

If the brake pedal is damaged, the force acting on the brake pads decreases, that force will not be enough to stop the car as quickly as before, so the braking distance will also be longer and longer.

4. Engine speed is uneven

In addition to the above problems, an uneven engine speed is also a sign that the brake assist bulb is damaged. The reason is usually because the rubber membrane of the power bulb is exposed, causing the engine to stop, so the brake is often stopped.

If the above situation persists for a long time, it will cause serious damage to the engine and endanger the user during the vehicle operation.

How to effectively use brake booster

  • Regularly maintain the brake assist parts in order to promptly detect damage, to repair and replace.
  • When driving, the brakes and corners should be separated to obtain the maximum grip between the wheel and the road surface. This will help increase the life expectancy and the quality of use of the power bulb.
  • If you take your car to check, repair or replace the power-assisted bulb, you should choose a reputable unit, quality products, genuine according to the vehicle. To ensure the best performance of the vehicle, do not affect the other parts.
Signs to Help Identify a Broken Brake Booster Ball
Regularly Check, Maintain, and Maintain Brake Boosters

Replace the brake booster properly

  • Step 1: Turn off the bike engine, step on the brake pedal several times to reduce vacuum of the power bulb. Then turn on the engine, check the height of the pedal and then turn the engine off again.
  • Step 2: Use a technical tool to remove the vacuum tube, remove the cylinder brake fluid line, the master cylinder brake, remove the brake pedal.
  • Step 3: Remove the nuts holding the brake assist bulb with the baffle between the engine compartment and the car cabin and the power bulb.
  • Step 4: Install new brake assist bulb into the baffle.
  • Step 5: Reattach the removed parts back to their original position.
  • Step 6: Main cylinder air discharge.

If, during vehicle operation, notice the above signs, quickly bring the car to prestigious garage nearest to be checked and replaced with a new power bulb. I wish you a safe driver. (A few more references Note when repairing, replacing automobile brakes).

5/5 - (1 votes)


Your email will not be displayed publicly. Required fields are marked *

1 Commentary

  • Nguyen An Binh 24/06/2022

    Where is the main cylinder exhaust?


  • Cars Care Service Price Sheet At Thanh Phong Auto HCMC VietNam:

    * The cars that we have mechanics: Mercedes, BMW, Audi, Lexus, Toyota, Honda, Mazda, Mitsubishi, Kia, Daewoo, Hyundai,Ford, Nissan, Volkswagen, Porsche, Chevrolet, Rand Rover, Innova, Fortuner, Vios, Fiat, Bugatti, Ferrari, Bentley, Hummer , Chrysler, Dodge, Renault, Cadillac, Volvo, Subaru, Daihatsu, Ssangyong, Roll-Royce, Peugeot, Smart Fortwo, Tobe M'car, Luxgen, Zotye, Haima, Geely, Baic, Hongqi, Cmc, Mini Cooper, Buick, Opel, Acura, Aston Martin, Vinfast, TQ Wuling.


    To keep your vehicle running properly at all times, we offer a number of services that are carried out by our certified, expert auto service and repair technicians who have years of experience performing everything from oil changes to a complete engine overhaul.