Hello, i had just replace my front rotors and pad. Is there any special instruction of bleeding brake with abs? because i took to a mechanic and he only bleed the front but refuse to do the back due to ABS....

Some ABS systems require special tool to cycle the ABS valves/motor while you bleed the system, otherwise old fluid can be trapped in "hidden" pathways that are only open when the ABS system is activated. From what I've read, the special tool is crazy expensive so they may not have had one. Not all ABS systems require the tool and I'm not sure how to find out if yours does without doing more research.

thanks for the fast reply. If the car need special tool but do not have one, do you think the mechanic should bleed the brake again but this time keep the fluid in MC fill and bleed all four brake untill the new fluid came out.?

most techs bleed just the service circuit. it does require a scan tool to activate the pump and cycle the hold and release valves to pump the old fluid through so it is a little difficult. You will be fine bleeding the service circuit only

"A"

That is all...

(a special tool)

SecondGenPAt wrote:most techs bleed just the service circuit. it does require a scan tool to activate the pump and cycle the hold and release valves to pump the old fluid through so it is a little difficult. You will be fine bleeding the service circuit only

So you saying that bleed just the front brake is fine?

No, bleed all 4.

Normal procedure is RR, LR, RF, LF. That is the service circuit, as opposed to the ABS circuit.

thanks just got confuse.