Front Brake Pads FN3, Removing and Installing
Brake pads, removing and installing
Special tools, testers and auxiliary items required:
^ Torque wrench V.A.G 1331
^ Torque wrench V.A.G 1410
^ Torque wrench V.A.G 1332
^ Brake pedal actuator V.A.G 1869/2
^ Piston resetting tool T10145
Removing
- Raise vehicle.
- Remove wheels.
Note:
^ Mark brake pads when removing, if they are to be reused. Reinstall in their original position to prevent uneven braking.
^ The brake disc is secured with a Torx bolt.
- Remove protective caps - arrows -.
- On vehicles equipped with a brake pad wear indicator disconnect connector - 1 -.
- Slightly lift up locating lug on lower part of connector - 2 - and turn 90°.
- Pull lower part of connector out of holder.
- Use a screwdriver to pry off brake pad retaining spring from brake caliper housing and remove.
- Unscrew and remove both guide pins from brake caliper.
- Remove brake caliper housing and lay to one side so that the weight of the brake caliper does not stress or damage the brake hose.
- Take brake pads out of brake caliper housing or from brake carrier.
Installing
- Press piston back.
- Use methylated spirits to clean brake caliper housing.
Note: Press piston back into the cylinder with resetting tool, before inserting new brake pads. Draw off brake fluid from the reservoir with a bleeder bottle before pressing piston back. Otherwise brake fluid which was used to top off brake fluid reservoir, may run out and cause damage.
CAUTION: Brake fluid is poisonous and must on no account be siphoned by mouth through a hose.
- Insert brake pad with retaining spring into brake caliper housing (piston).
Note: The inner pad (with spring) has an arrow. The arrow must point in direction of brake disc rotation when moving forward. May create noises if incorrectly installed.
- Pull off protective foil on backing plate of outer brake pad.
- Install outer brake pad onto brake carrier.
- Secure brake caliper housing to brake carrier with both guide pins (tighten to 25 Nm).
- Install both protective caps.
- Insert retaining spring into brake caliper housing.
- Connect electrical connector for brake pad wear indicator.
Install wheels.
Note:
^ The retaining spring must be pressed under the brake carrier after inserting into both holes. If incorrectly installed, the wear of the outer pad cannot be adjusted, and the pedal travel will be increased as a result.
^ After installing the brake pads, depress pedal firmly several times with the vehicle stationary, so that the brake pads are properly seated in their normal operating position.
- Check brake fluid level and top off if necessary.