Other brake systems that use dot brake fluid are more prone to attract moisture because of the hygroscopic nature of the fluid.Ill-fitting of brake pads and linings can also contribute to this problem, this is quite common in new cars (it is always recommended to have a specialist verify brakes of a new car before taking it on the road).Other issues such as damaged brake lines and joints can also bring about accumulation of air into the system, causing that spongy feel when you press the pedal.One reason is shortening of the hydraulic horses which lead to the loss of brake fluids and creates space for air to get into the system. There are several scenarios on how air can get trapped in the braking system of your car.When you are back from the test drive, clean up the work area and drive safely. How does Air get into The Braking System? Take the car for a test drive around the block and confirm that your work has paid off and everything is functioning as expected. Refit all the wheels and be ready to test your brakes for consistency. While at it, your partner should make sure that the pedal goes up and down to the recommended levels. Step #8: Fit the Wheels Step #7: Check for LeaksĪfter bleeding all the brake lines, make sure that as your friend pumps the pedal, you walk around the vehicle to check if there are any leaks as a result of pumping. NOTE: Make sure that as you are draining the brake fluid, you keep checking the fluid levels on the master cylinder to make sure you do not drain the cylinder and drawing air into the system. Open the master cylinder and refill with fresh brake fluid until it reaches ‘full’ level line. The sequence given should work for most generic ABS. The bleeding process normally varies depending on the make and model of the vehicle or the ABS system used. RIGHT REAR, LEFT REAR, RIGHT FRONT, LEFT FRONT NOTE: Please note that you have to do this for all the wheels and it must be in the following order This procedure has to be repeated several times to make sure that no air bubbles are left in the brake lines. Open the bleeder screw to allow trapped air to escape and tell him to keep holding the pedal until you are sure that the bleeder screw is tight as it was before. Just before returning the bleeder screw, ask the partner to press the pedal down and hold it there. Once done with all the wheels, you can confirm if the brake fluid reservoir is indeed empty. Step #5: Tighten the Bleeder Screw At this stage, if you are unable to put the plastic bottle in a stable position, you may have to ask a friend or your assistant pumps the brake pedal until all the fluid has been drained into the bottle.
Use the correct bleeder wrench to loosen the bleeder screw, remove the dust cap and take the vacuum hose, tubing and put one end of it in an empty plastic bottle and the other end attached to the bleeder screw. NOTE: make sure that you get the recommended fluid for your car by consulting your trusted mechanic before making the purchase.
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