Brake system, bleeding

WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION:

Do not under any circumstances allow brake fluid to come into contact with fluids that contain mineral oils (e.g. oil, gasoline, cleaning agents). Mineral oils damage the plugs and seals in the brake system.
Brake fluid is poisonous and must on no account be siphoned by mouth through a hose. Because of its caustic properties it must also not come into contact with paint.
Brake fluid is hygroscopic, i.e. it absorbs moisture from the surrounding air, and should always be stored in airtight containers.
Always observe environmental regulations for disposal.

NOTE:

Only use new brake fluid conforming to US standard FMVSS 116 DOT 4.
Genuine Audi brake fluid conforms to this specification.
Use plenty of water to flush away any brake fluid spillage.
When the system is open do not work with compressed air and do not move the vehicle.
During the final road test, make sure that at least one ABS-controlled braking operation is performed (pulsations must be felt at the brake pedal).