Front Brakes, FN 3 Caliper Overview

FN 3 Caliper Overview

• 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.

• Use brake charger/bleeder unit (VAS 5234) or extraction device (V.A.G 1869/4) to extract brake fluid from brake fluid reservoir.

• Before removing brake caliper or disconnecting brake hose, brake pedal depressor (V.A.G 1869/2) must be inserted (this dissipates pressure).

Assembly Overview FN3 15 inch:






1 Phillips Head/ TORX(R) Bolt,

• 4 Nm

2 Brake Rotor

• Internally vented, 288 mm diameter

• Thickness 25 mm

• Wear limit: 22 mm

• Must always be replaced together on both sides of axle.

• Remove brake caliper and brake carrier before removing.

3 Brake Pads

• Thickness 14 mm without backing plate

• With wear indicator

• When wear limit is reached (limit: approximately 4 mm), the warning lamp lights up in instrument cluster.

• Wear limit: 2 mm without backing plate

• Must always be replaced together on both sides of axle.

• Removing and Installing, refer to => [ Brake Pads, FN 3 ] Brake Pads, FN 3.

4 Spring

• Insert in both holes of brake caliper.

5 Brake Carrier

• Bolt to wheel bearing housing.

6 Brake Caliper

• Do not remove the brake hose when changing the brake pads.

• Removing and Installing, refer to => [ Brake Caliper, FN 3 ] Brake Caliper, FN 3.

• Servicing, refer to => [ Brake Caliper Piston, FN 3 ] Brake Caliper Piston, FN 3.

7 Guide Pins

• 30 Nm

8 Cap

• Remove

9 Brake Hose with Ring Connection and Banjo Bolt

• 35 Nm

10 Ribbed Bolt

• 190 Nm

• Clean if using again.

11 Bolt

12 Bracket

13 Wheel Bearing Housing

• With fastened brake carrier.

14 ABS Wheel Speed Sensor

• Before inserting sensor, clean inner surface of bore hole and coat with hot bolt paste G 052 112 A3.

15 Hex Socket Head Bolt

• 8 Nm

16 Cover Plate

17 Hex Head/TORX(R) Bolt

• 12 Nm

• Hex head bolt M6x10 changed from TORX(R) bolt M6x12.

• Replace hex head bolt with hex head screw and TORX(R) bolt with TORX(R) bolt.

18 Wheel Bearing/Hub Unit

• The ABS sensor ring is installed in the wheel bearing.

Assembly Overview FN3 16 inch:






1 TORX(R) Bolt

• 12 Nm

2 Brake Rotor

• Internally vented, 312 mm diameter

• Thickness 25 mm

• Wear limit: 22 mm

• Must always be replaced together on both sides of axle.

• Remove brake caliper and brake carrier before removing.

3 TORX(R) Bolt

• 4 Nm

4 Brake Pads

• Thickness 14 mm without backing plate

• With wear indicator

• When wear limit is reached (limit: approximately 4 mm), the warning lamp lights up in instrument cluster.

• Wear limit: 2 mm without backing plate

• Must always be replaced together on both sides of axle.

• Removing and Installing, refer to => [ Brake Pads, FN 3 ] Brake Pads, FN 3.

5 Spring

• Insert in both holes of brake caliper.

6 Brake Carrier

• Bolt to wheel bearing housing.

7 Brake Caliper

• Do not remove the brake hose when changing the brake pads.

• Removing and Installing, refer to => [ Brake Caliper, FN 3 ] Brake Caliper, FN 3.

• Servicing, refer to => [ Brake Caliper Piston, FN 3 ] Brake Caliper Piston, FN 3.

8 Guide Pins

• 30 Nm

9 Cap

• Remove

10 Brake Hose with Ring Connection and Banjo Bolt

• 35 Nm

11 Guide Pins

• 30 Nm

12 Cap

• Remove

13 Bolt

14 Bracket

15 Ribbed Bolt

• 190 Nm

• Clean if using again.

16 Wheel Bearing Housing

• With fastened brake carrier.

17 ABS Wheel Speed Sensor

• Before inserting sensor, clean inner surface of bore hole and coat with hot bolt paste G 052 112 A3.

18 Hex Socket Head Bolt

• 8 Nm

19 Wheel Bearing/Hub Unit

• The ABS sensor ring is installed in the wheel bearing.

20 Cover Plate