Quick tips:

-If you can, put the car up on 4 stands, or lift the rears, then the fronts.

- Always work from the furthest caliper to the closest to the master cylinder. On the S4, this is Passenger Rear, Drivers Rear, Passenger Front, Drivers Front.

- If you have a power bleeder, fill that with a couple bottles of your preferred high temp brake fluid. This will allow you to flush / bleed the system by yourself.
- Never store open bottles of brake fluid. Use it then safely dispose of any remaining fluid.
- NEVER Touch your paint with brake fluid on your hands! It's bad, m'kay?
- Make sure you fill the reservoir no more than the fill line as brake fluid will expand / contract somewhat with temperature.
- Handy stuff to have on hand: Turkey Baster (to remove excess fluid from reservoir), 10mm (iirc) open box wrench, clear hose to drain fluid into bottle.

Steps:

- Fill bleeder with your new fluid. For a full flush, it's helpful to alternate Motul (yellow) with a blue fluid (I think AP Racing, or something).
- Pressurize the bleeder up to around 10 PSI.
- Start in the pass. rear, open the drain valve with the clear tube attached. The fluid comes out the top of the "screw". The screw is covered by a black rubber cap.
- open the valve, keep draining until you see no air bubbles coming from the caliper for a bleed, or until you see the different color fluid for a full flush
- If you don't have a power bleeder, you will need someone to pump the brakes. You slowly depress the pedal and then open the valve. When the pedal reaches the end of the travel, close the valve before removing pressure from the pedal. Repeat a ton of times, depending on how bad they are.
- repeat the above working closer to the master cylinder as described above.
- drain any excess fluid from the reservoir, close it.
- remember to toss any remaining fluid. Never reuse an open bottle.

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