Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
FN 3 Front Caliper Assembly Overview
After replacing brake pads, depress brake pedal several times firmly to properly seat brake pads in their normal operating position.
Use Brake Charger/Bleeder Unit VAS 5234 or Extraction Device Upgrade Kit 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
- Bolt, 4 Nm
- Brake Disc
- Internally vented, ΓΈ 288 mm
- Thickness 25 mm
- Wear limit: 22 mm
- Must always be replaced together on both sides of vehicle.
- Remove brake caliper before removing.
- 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.
- Check thickness
- Must always be replaced together on both sides of vehicle
- Removal and installation, refer to BRAKE PADSΒ .
- Retaining Spring
- Insert in both holes of brake caliper.
- Brake Carrier
- Bolt to wheel bearing housing.
- Brake Caliper
- Do not unscrew brake hose when replacing brake pad.
- Removal and installation, refer to BRAKE CALIPERΒ .
- Servicing, refer to FN 3 FRONT BRAKE CALIPER ASSEMBLY OVERVIEW .
- Guide Pins, 30 Nm
- Cap
- Remove
- Brake Hose with Ring Connection and Banjo Fitting, 35 Nm
- Ribbed Bolt, 190 Nm
- Clean if using again.
- Bolt
- Bracket
- Wheel Bearing Housing
- With bolted brake carrier.
- ABS Wheel Speed Sensor
- Before inserting sensor, clean inner surface of bore hole and coat with hot bolt paste G 052 112 A3.
- Bolt, 8 Nm
- Cover Plate
- Bolt, 12 Nm
- Hex head bolt M6x10 changed from Torx bolt M6x12
- Replace hex head bolt with hex head bolt and Torx bolt with Torx bolt.
- Wheel Bearing Wheel Hub Unit
- The ABS sensor ring is installed in the wheel bearing.
Assembly Overview FN3 16 Inch
- Bolt, 12 Nm
- Brake Disc
- Internally vented, ΓΈ 312 mm
- Thickness 25 mm
- Wear limit: 22 mm
- Must always be replaced together on both sides of vehicle.
- Remove brake caliper and brake carrier before removing.
- Bolt, 4 Nm
- 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.
- Check thickness
- Must always be replaced together on both sides of vehicle.
- Removal and installation, refer to BRAKE PADSΒ .
- Retaining Spring
- Insert in both holes of brake caliper.
- Brake Carrier
- Bolt to wheel bearing housing.
- Brake Caliper
- Do not unscrew brake hose when replacing brake pad.
- Removal and installation, refer to BRAKE CALIPERΒ .
- Servicing, refer to FN 3 FRONT BRAKE CALIPER ASSEMBLY OVERVIEW .
- Guide Pins, 30 Nm
- Cap
- Remove
- Brake Hose with Ring Connection and Banjo Fitting, 35 Nm
- Guide Pins, 30 Nm
- Cap
- Remove
- Bolt
- Bracket
- Ribbed Bolt, 190 Nm
- Clean if using again.
- Wheel Bearing Housing
- with bolted brake carrier
- ABS Wheel Speed Sensor
- Before inserting sensor, clean inner surface of bore hole and coat with hot bolt paste G 052 112 A3.
- Bolt, 8 Nm
- Wheel Bearing and Wheel Hub Unit
- The ABS sensor ring is installed in the wheel bearing.
- Cover Plate
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.