Changed brakes and rotors all the way around on my XKR, had to crack off a caliper to have enough torque to retract a piston. So I lost fluid, and did a brake fluid flush all the way around, bleeding out and replacing little more than 1L of fluid.

However, I still feel like my pedal is still too spongy. Should I go do the flush again? Or is that just how it is on these cars and I'm being neurotic?

 

I always do 2 bleeds for good measure and even then, it will take a few days of driving for the pedal feel to return, especially with new pads and rotors.

 

+1 on the new pads and discs effect - give them a few days driving without any harsh braking to bed in.

I did my fronts two weeks ago and they are just beginning to feel right.

Graham

 

If we are talking static peddle pressure it should be no different then before you did the brake job. If softer pads are used then you would feel a difference in braking performance but the peddle pressure should be the same. A soft peddle is a sign of either air or water in the system. If there is air in the system it does not or cannot work it's way out as it is a closed system. I would get a power bleed done . Just my 2 cents

 

I would do another flush starting with the right rear caliper. I usually push just over a litre of fluid through the full circuit. I have been changing pads on all of my cars for over 20 years and in my experience new pads and new rotors actually make the pedal feel firmer. But I also bed them in first to get full benefit from the Replacement.

 

Was a pressure bleeding? I think the brakes need to be pressurized when the bleeding is done.

 

I find the easiest way to do it by myself is to fill and pressurize the reservoir with a power bleeder and then open and close the bleeders one by one, the old fluid is pushed out automatically.

 

OK, buying a Motive power bleeder now and will do this again with a pressure bleed. The Amazon vacuum pump I had was junk. And so many bubbles from the bleeder screw.

 

You must open the bleeder all the way and close it while the new fluid is flowing and you see no more bubbles. You want to do this rather quickly so you don’t create a vacuum in the bleeder and suck bubbles back in. No worries though, It is easier than it sounds.

 

A little grease on the caliper nipple helps seal the bleed hose too.