RS 4 Quattro Sedan V8-4.2L (BNS) (2007)
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Use methylated spirits to clean brake caliper housing.
‹› Before inserting new brake pads, press the piston back into the cylinder using the piston resetting tool (T10145). Before pressing the piston back,
extract brake fluid from the reservoir with a bleeder bottle. Otherwise fluid will overflow and cause damage if the reservoir was topped off during
repair work.
CAUTION!
Brake fluid is poisonous and must never be extracted by mouth using a hose!
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Insert the brake pad with retaining spring into the brake caliper housing (piston).
‹› The inner surface (with tension spring) is indicated by an arrow. The arrow must point in the rotation direction of the brake rotor when driving
forward. If improperly installed, noises could result.
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Pull off the protective foil on the backing plate of the outer brake pad.
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Install the outer brake pad onto the brake carrier.
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Secure the brake caliper housing to the brake carrier with both guide pins (tighten to 30 Nm).
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Install both protective caps.
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Insert the retaining spring into the brake caliper housing.
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Connect the electrical connector for the brake pad wear indicator.
