Brake fluid

How do I change the brake fluid?

You drain it and fill it, apparently.

open the rear pass side brake bleeder power bleed or pump all the fluid out with the pedal. fill the brake fluid reservoir and bleed all brakes normally until only fresh fluid comes out. fill the reservoir.

Just make sure that there's no air in the system after you fill it again.
There are two things you don't want in your brake lines: air (or any compressable gas) and water (brake fluid will easily get heated up to over 100 degrees Celsius and water tends to turn into steam then... which is bad, since it's a compressable gas).

How do I change blinker fluid? My lights may burn out without it.

hold ur brake and gas down at the same time in 1st gear until it naturally drains from behind the front left tire

How can I make sure there's no air in the system?

Can someone give a good video about this?

you dont need to change your brake fluid

>you dont need to change your brake fluid

I don't know about new cars, and this seems like a joke thread, but anyway: on old cars the brake fluid absorbs moisture from the air and it accumulates over time and rusts the components.

also, on on new cars I'm pretty sure you can't just "drain" it and refill; I believe you have to have special equipment to bleed the system if air gets into it.

one thing that I disagree with the experts on is whether or not it's ok to open a bleed valve and press the pedal to the floor. they say it ruins the master cylinder because the seal has to push past all the corrosion in the far end, but in my experience if you flush your system every year then it does not seem to be a problem. I'm guessing that the problem arises on a car that has not been flushed for 10 or 15 years.

an easy way to flush most of the system is to use a vacuum pump to pull all the fluid out of the master cylinder and refill it. no need to bleed anything.

I like to use the Motive Power Bleeder. Its a pump tank that attaches to the master cylinder reservoir and puts pressure on to the whole system. This makes bleeding and flushing extremely easy. Just open the bleeder valve and let the pressure do the work, close it and move to the next one in the sequence. Cake.

Every car has the same sequence?

Eh, if you just drain the master, what about the fluid in the lines and brake pistons.

its all bad. the fluid in the pistons sees the most heat anyway

Probably not, but it's usually farthest to nearest.

Open all bleeder screwes, let it drain out. Close them, then fill up the system with windshield washer fluid to flush it out. Then open bleeders again and drain that out and fill it up with brake fluid and bleed.

I think you need to drive around and do a few hard stops to really flush it out with the windshield washer fluid.

Oh and save the used brake fluid, it's a great way to wash your cars paint

OK

seconded.

Thirded

Stop shitposting or I'll call the mods

>I like to use the Motive Power Bleeder. I
Fucking this. It's one of the best tools I have in the garage.

Just make sure you don't let the master cylinder reservoir run dry, or you'll be dismantling things to bench bleed.

So it's fine if the reservoir stays open the whole process?

The reservoir is capped by the power bleeder. You fill the tank with fluid, cap the reservoir, pump it up to make pressure, bleed.

Thanks for the pic, now everything is clear

You're welcome. It makes bleeding a breeze, and you can do it yourself. Also no risk of
damaging your BMC seals.

Only think is make sure you use the proper sequence and your calipers are on the right sides (guilty of this, you'll be tearing your hair out if you make that mistake because you'll never get all the air out).

Oh, make sure the caliper pistons push against the pads and the rotor. The pressure on the system will pop the caliper pistons out of their bores if the caliper is removed.

Yes, only to be done when everything is assembled, and you're ready to bleed the system.