How to change brake oil of my car without causing any issues?

[ghulam.ali3]

I have no experience of doing this but I still want to do this myself just to learn this.

[Xulfiqar]

One sentence of advice

DO NOT PUSH PEDAL TO THE FLOOR UNDER ANY CIRCUMSTANCES ON AN OLD/IN USE CAR

The rest is just using a catch jar and plumb the hose and entire jar upwards from the bleeder but lower than the brake master cylinder height.

One man bleed is easy!

[haseeb.basharat]

have no experience of doing this but I still want to do this myself just to learn this.

Go to the dealership. They have machines for this job.

[ifadey]

Or you can use a brick/wood under the brake pedal to avoid letting it go to the floor.

[Xulfiqar]

Yep, that too.

The idea is to prevent it going to the floor.

[affanhaq94]

@Xulfiqar Could you please explain why pressing to the floor would cause issues? Just incase anyone who comes across this thread in the future wants to know why

Thx

[ifadey]

In case of old vehicle, rust or debris can accumulate at the end of the master cylinder. Pressing the brake fully to the floor will move the master cylinder piston seals all the way to end can cause damage to them. This can cause loss of braking pressure.

I don't think this will be an issue if you routinely change the brake fluid every year or two

[admin312]

Always follow your car manual and seek professional help if unsure. Brake maintenance is crucial for safety.