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Re: Brake fluid Megane MK3
If you have bled about one litre of fluid equally from all bleed points you can be certain there is no old fluid left in the system.
Like you, I try to syphon some of the old fluid out of the reservoir just leave about 5 mm or so in the bottom - top up immediatelty saves both time and fluid.
If you can get all four wheels off the ground at the same time the job will be easier. Start with the bleeder closest to the master cylinder - that ensures most of the old fluid in the master cylinder is removed first. That ensures fresh fluid is pushing the older fluid out. Then bleed in the normal sequence.
If I have the time I just open two bleeders at the same time and let gravity do the work. It's slow but there is less risk of air being drawn into the system.
Currently in madnoel10's garage:
Honda Civic 1.4l