What are the steps for bleeding car brakes?
3 Answers
Steps for bleeding car brakes: 1. Press the brake pedal continuously 5 to 6 times, then hold it down. Immediately loosen the air screw on the right rear wheel brake caliper and quickly tighten it again. Repeat this action until brake oil shoots out in a straight line from the air screw; 2. The order for bleeding air is right rear wheel, left rear wheel, right front wheel, left front wheel, and clutch master cylinder; 3. While bleeding air, remember that the container above the brake master cylinder must never lack brake oil and should always be kept full. For BYD vehicles, the clutch master cylinder is connected to the brake oil circuit, so oil must be drained before bleeding air. Press the clutch pedal, loosen the oil drain bolt on the master cylinder to let the dirty oil drain out, then tighten the oil drain bolt again. At this point, the clutch pedal will be very loose and won't spring back up. Lift it with your foot and continue pressing. Repeat the above steps until new oil is discharged, then finally tighten the oil drain bolt.
I remember when bleeding the car's brakes, the most important thing is to have all the tools ready: new brake fluid, an empty container, a hose, and a wrench. It's best to have a friend help with the whole process for higher efficiency. The first step is to open the brake fluid reservoir cap and fill it with new fluid, making sure not to spill any, as brake fluid is somewhat corrosive—gloves are a must. Then, bleed the brakes in wheel order, starting with the right rear wheel since it's the farthest from the master cylinder, making it easier to expel air. My friend slowly presses the brake pedal inside the car while I open the bleeder valve at the wheel with a wrench, connecting the hose to the container. Each time the pedal is pressed, fluid flows out until no more bubbles appear, then I close the valve. Move on to the next wheel: left rear, right front, and left front, following this order to avoid air pockets. Finally, don’t forget to check if the fluid level is at the standard mark and test the brakes to ensure they’ve regained their strength. This job can’t be rushed—air in the brake lines can delay braking response, which is especially dangerous at high speeds. Taking the time to do it right makes the car much safer.
Hey, when I bled the brake fluid on my old family car before, I had to tinker with it myself and found it easier with a partner. First, prepare some new fluid and a small bottle, attach a hose to the bleeder valve, and have a friend sit in the car to press the accelerator—oops, I mean the brake pedal! Meanwhile, I kept an eye on the fluid coming out until no bubbles were visible, then closed the valve, doing each wheel in order: right rear, left rear, right front, left front. The whole time, don’t let the reservoir run dry—keep topping it up, or air will get in. The key here is patience—press the pedal slowly and methodically. If you mess up the order or run low on fluid, the brakes might feel spongy, which is a big safety risk. I’d recommend beginners give it a try too, but start on level ground. After finishing, pump the brakes a few times to test and make sure everything’s solid before driving off.
