I have a 99 KIA Sportage and I am going to replace a leaky clutch slave cylinder. After I do that, brake bleeding is required because my hydraulic clutch system and brake system share the same master cylinder reservoir. I have asked around a few mechanic shops about how to bleed my brake fluid and I have factory manual that explains step by step how to bleed my clutch hydraulic system. But these directions are very vague to me. Here they are….

BLEEDING
The brake fluid reservoir must be more than 3/4 full during bleeding.
All air must be bled out of the hydraulic system for correct clutch operation.
1.Remove bleeder cap.
2.Attach a suitable hose to the bleeder screw and direct end of hose into see-through container.
3.Hold the clutch pedal down, open the slave cylinder bleeder screw to let any air escape. Close bleeder screw and let the pedal up.
4.Repeat step 1 until only fluid comes out of the bleeder screw.
5.Replace bleeder cap and discard used brake fluid in container.

First of all, what is a bleeder cap and where is it on the vehicle. Mechanics have told me I have to take all four wheels off the vehicle and bleed the brakes from each tire.
So here’s where I am really confused, even though my clutch system and brake system share the same fluid, am I bleeding the brakes or the hydraulic clutch system? and is there a difference with my particular vehicle? Can someone explain to me this process so it is easier for me to understand? Thanks for the help.

Oh and by the way, every time I ask this question, I get the usual idiot who tells me the brake and clutch system don’t share the master cylinder reservoir. ON MY VEHICLE THE HYDRAULIC CLUTCH SYSTEM AND BRAKE SYSTEM DO SHARE THE SAME MASTER CYLINDER RESERVOIR!!! Which means if I have a leak in my brake lines, I not only loose braking power but it also affect my clutch.