Introduction
It is imperative that two people perform this operation.
Parts
Video Overview
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To keep your vehicle clean, consider protecting it with several large cloths.
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Open the brake fluid reservoir cap
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Insert the oil syringe into the jar, and extract as much brake fluid as possible.
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Empty the contents of the syringe into the jerrycan
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Repeat the operation until the tank is completely empty.
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Using a flat screwdriver, remove the filter from the jar.
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Close the jar cap and unscrew the 2 fixing screws
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Using a small flathead screwdriver, remove the hose from the reservoir, being careful not to spill any brake fluid.
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Empty the remaining brake fluid into the can.
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Clean the jar with a cloth and reconnect the hose. Press firmly to connect the hose and the jar securely.
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Put the jar back in place, insert the 2 screws into their holes and tighten them. Place the filter in the neck
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Be sure to check the correct type of brake fluid for your vehicle.
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Bleed in the following order (starting with the wheel furthest from the cylinder): Right rear, left rear, right front, left front
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Remove the bleeder screw cap
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Connect the hose from the bleeder can to the bleeder screw
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Place the purge canister high up, attach it to the suspension spring for example.
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Using the flat wrench, loosen the bleed screw to open it
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The person in the driver's seat should pump the brake pedal repeatedly, then hold the pedal down while the second person opens the bleeder screw. Once the brake pedal is on the floor, the second person tightens the bleeder screw.
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Bleed until there are no more air bubbles in the pipe, but also a change in the color of the liquid (it becomes increasingly clear)
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The bleeder bottle fills and the brake fluid level in the reservoir decreases
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The front and rear calipers are not the same, so the bleeder screw will not be in the same location
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Top up the brake fluid if necessary to reach the correct level (MAX)
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Close the fuel cap
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22 Comments
BE CAREFUL of the coordination of the images in the video which may suggest that you can loosen the bleeder screw BEFORE pressing the brake pedal and release the pedal BEFORE tightening the bleeder screw.
Here is the correct method:
1) Pump the pedal then keep it pressed (in the UP position)
2) Open the bleeder screw to let the LDF (and any air bubbles) flow out while the pedal is depressed
3) Close the bleed screw while your foot is pressing on the pedal (in the LOW position)
4) Release the pressure to let the pedal rise
5) Repeat as in 1) until the purge is complete.
You can make a non-pumping bleeder. Find a used jar cap and drill a hole in the center. Its diameter should be about 10mm to fit a tire valve. Fill the jar with new fluid, close the cap with its valve, open a bleeder screw and push the fluid with a bicycle pump. Make sure there is always new fluid in the jar by filling it regularly, otherwise you send air into the circuit and everything has to start again.
I give you information for the brake bleeding procedure on Nissan Vanette C22, petrol, which is practically impossible to find, even for owners of Largo, VAN, Vanette C22, Vanette GC22 and a huge range of versions.
Bleeding procedure: First Left rear wheel cylinder. + Right rear wheel cylinder.
We move to the FRONT on PORT B (bleeder closer to the ground, because there are two: A and B per front jaw) of the left front jaw + PORT B of the right FRONT jaw.
Explanation here: the hydraulic brake lines on these Nissan models in the workshop manual are drawn A and B (A in black)
Once the right front wheel circuit B is completed. We return to the left FRONT wheel and bleed ORIFICE A (bleeder closest to the body) (because there are TWO bleeders per FRONT wheel, A and B) (B is closest to the ground)
We return to the right FRONT wheel and purge PORT A.
Be careful to NEVER COMPLETELY EMPTY THE BRAKE FLUID RESERVOIR while bleeding the calipers and top up regularly, otherwise you risk putting air into the circuit, which would cause major braking problems.
