Can any of you help me through the replacement of the Rear Right Caliper.
'01.5 S4
Thanks

It is basically the same procedure as removing the caliper to do pads and rotors, with the added job of 1) disconnecting the brake line and 2) flushng and bleeding the system.

Or so I would imagine.

Grant

No I don't have the repair manual. Last week-end I tried to replace the brake pads but piston wasn't cooperated...then somehow I tear the rubber boot...just bought rebuild caliper...and I just want to know to replace it without any surprises...

No I don't have the repair manual. Last week-end I tried to replace the brake pads but piston wasn't cooperated...then somehow I tear the rubber boot...just bought rebuild caliper...and I just want to know to replace it without any surprises...

1. You need a caliper tool to screw it back in while turning. Harbor freight sells a kit for about 420-30. get it.

2. Before removng the caliper, disconnect the brake line. be very careful nto to strip it. Immediately plug the end. I dop so by screwing a cap on it, if you knwo the thread size and count. If not, be creative, but cut off the flow of fluid.

3. remove the caliper from the carrier

4. Typically you need to use compressed air to eject the pistons. be careful not to shoot them around and damage them - just nudge them out

5. Clean everything really well with a cloth or steel wool and brake fluid

6. Put the new rubber boots on and re-insert, very carefully. I have nto done them in a long time- I dont know if you need to screw while pressing now, or just screw them in since there is no brake fluid pressure on them.

<,another reason to get the bentley, plus, if you had it before, you would nto be in this pickle now....>

7. While out, clean and re-lube, with 3M brake lubricant or similar, the guide pins that let the floating caliper "float" . I did a write up on this, btu I dont know if mark H ever posted it. Email me if you want the PDF

8. re assemble, flush bake fluid ( i strongly suggest you get a pressure bleeder, I have a motive, about $55)

Vous avez terminee

Grant

Merci, Grant...tu es francai?
anyways, I did it yesterday...everything went well...Thanks

.. but I am just back from a week of work in Nice.

I'm glad it went smoothly. There's nothing worse than completing HALF a job......

G

The rear pistons must be screwed back in with a caliper tool that applies pressure and turns the pistons using the holes provided. They are fairly cheap. harbor sells a nice kit. High pressure not needed.

Next, if you tear the boot, all you need a a rebuild kit, which is more or less new boots. You remove the pistons, clean, install new boots, lubricate with the apropos lubricants ( nto regular grease! - actually brake fluid is generally best) and reinstall.

Grant

handel on the tool, i used on the impact gun with an old ford caliper tool that I used on my 95 sho back from 1999. I held the caliper in one had and spun teh gun with the other, it worked, I was surprised how hard they wer eto turn back in, but the caliper was fine, it hasnot leaked yet and the e-brake worked fine. I pulled it a few times and it adjusted tight. I guess I got luck, if teh calipers start to fail I will just rebuild them, the fun part is yet to come front B5 S4 breaks/rotor replacement this weekend. last weekend was the back.