Front brakes, servicing

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.

NOTE:

Install complete repair kit.
After replacing brake pads, depress brake pedal firmly several times with vehicle stationary so that the brake pads are properly seated in their normal operating position.
To extract brake fluid from the brake fluid reservoir, use a bleeder bottle that only comes into contact with brake fluid. Brake fluid is poisonous and must never be extracted by mouth using a hose!
When replacing brake components (brake discs, brake calipers or brake pads), always make sure you install the correct parts for the vehicle. This is essential for the proper function of the ESP.
Brake line torque specification is 15 Nm.

Fig 1: Exploded View Of Front Brakes C54

Courtesy of VOLKSWAGEN UNITED STATES, INC.

1 - Brake disc cover

2 - Collar bolt, 10 Nm

M6x12

3 - Brake hose

Do not disconnect brake hose when changing brake pads

4 - Spring clip

5 - Brake line, 15 Nm

Screw into brake caliper housing
Screw into brake hose, counter hold on brake hose hexagon.

6 - Self-locking bolt, 30 Nm

Always replace
When loosening and tightening, counter-hold on guide pin

7 - Ribbed bolt, 190 Nm

Clean ribs if using again

8 - Brake carrier with guide pins and protective cap

Replacement carriers are supplied assembled with sufficient grease on guide pins

9 - Brake disc

Always replace both sides
Remove brake caliper prior to removing
Resurface evenly, on both sides, starting from thickness when new
Thickness → Brakes

Allocation → Brakes

10 - Wheel bolts

Installing wheels → 44 - WHEELS, TIRES, VEHICLE ALIGNMENT

11 - Torx bolt

Tightening torque: 5 Nm

12 - Heat shield

Insert into piston

13 - Brake caliper housing

Do not disconnect brake hose when changing brake pads

14 - Bracket

Bolt to brake caliper housing

15 - Hex bolt, 10 Nm-

16 - Brake pads

With left and right wear indicator
Warning lamp in instrument cluster will light up when wear limit (2 to 3 mm) is reached.
Always replace both sides
Before installing pads, clean guide surfaces and apply a thin coating of lubricating paste G 000 650 .

Removing and installing → Brake pads, removing and installing
Checking pad thickness:
Different versions see ETKA

17 - Connector

18 - Bracket