Volkswagen Tiguan Service and Repair Manual: Front Brakes, Servicing

Overview - Front Brakes FN 3

Note

• After every brake pad replacement, firmly press down on the brake pedal several times with vehicle stationary so that the brake pads are properly set in their respective operating position.
• Use the Brake Charger/Bleeder Unit -VAS5234- to extract brake fluid from brake fluid reservoir.
• Install the Brake Pedal Actuator -VAG1869/2- to relieve pressure before removing a brake caliper or disconnecting a brake hose.

1. TORX Bolt
   • 12 Nm
2. Brake Rotor
   • Internally vented, 312 mm diameter
   • Thickness 25 mm
   • Wear limit: 22 mm
   • Always replace on both axles.
   • Remove the brake caliper before removing
3. TORX Bolt
   • 4 Nm
4. Brake Pads
   • Thickness 14 mm without backing plate
   • With brake pad wear indicator
   • When wear limit is reached (limit: approximately 4 mm) the warning lamp in instrument cluster will come on.
   • Wear limit: 2 mm without backing plate
   • Thickness, Checking.
   • Always replace on both axles.
   • Removing and installing.
5. Spring
   • Insert in both holes of the 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.
   • Servicing.
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
    • 200 Nm
    • Clean if using again
16. Wheel Bearing Housing
    • With bolted brake carrier
17. ABS Wheel Speed Sensor
    • Before inserting the speed sensor, clean the inside of the hole and coat it with hot bolt paste G 052 112 A3.
18. Hex Socket Bolt
    • 8 Nm
19. Wheel Hub with Wheel Bearing
    • The ABS sensor ring is installed in the wheel bearing
20. Cover Plate

Brake Pads, Removing and Installing

Special tools and workshop equipment required

• Torque Wrench 1331 5-50Nm -VAG1331-
• Piston Resetting Tool -T10145-

Removing

Label the brake pads that will be used again when removing. Install in the same position, otherwise the braking effect will be uneven.

• Remove the wheels.

• Using a screwdriver, pry off the brake pad retaining spring from brake caliper -arrow- and remove.

• Separate the connector -1- for brake pad wear indicator.

• Remove the caps -arrows-.

• Loosen both guide pins -arrows- and remove them from the brake caliper.
• Loosen both guide pins -arrows- and remove them from the brake caliper.
• Remove the brake pad from brake caliper or from brake carrier.

Cleaning

WARNING

Do not blow the brake system using compressed air, the dust produced is harmful to health!

• Thoroughly clean contact surfaces for brake pads at brake carrier, remove corrosion.
• Clean the brake caliper, especially the adhesive surface for the brake pad, it must be free of residual adhesive and grease.

Only use mineral spirits for cleaning the brake caliper.

Installing

Before pressing the piston into the cylinder using the piston resetting tool, the brake fluid must be extracted from the brake fluid reservoir. Otherwise the brake fluid will overflow and cause damage, especially if the brake fluid was added intermittently.

• Press the piston back.
• Remove the protective foil on backing plate of outer brake pad.
• Install the outer brake pad on the brake carrier.
• Insert the inner brake pad with spring in the brake caliper (piston).

When installing the brake caliper, make sure that the brake pad is not glued on to the brake caliper before the correct installation position is reached.

Do not damage the adhesive surface.

• Tighten the brake caliper to the brake carrier using both guide pins.
• Install both caps.
• Insert the spring in the brake caliper.
• Connect the brake pad wear indicator
• Install the wheels.

Wheel bolt tightening specifications.

Note

• After every brake pad replacement, firmly press down on the brake pedal several times with vehicle stationary so that the brake pads are properly set in their respective operating position.
• Check the brake fluid level after replacing the brake pad.

Tightening Specification

Guide pin to brake carrier  30 Nm

Brake Caliper, Removing and Installing

Special tools and workshop equipment required

• Torque Wrench 1331 5-50Nm -VAG1331-
• Brake Pedal Actuator -VAG1869/2-.

Removing

The procedure only applies to the replacement of or subsequent repair work done on the brake caliper.

• Remove the wheels.
• Using screwdriver, pry off brake pad retaining spring from brake caliper and remove.
• Separate the connector for brake pad wear indicator.
• Connect the bleeder hose of bleeder bottle to the brake caliper bleed valve and then open the bleeder valve.
• Insert the Brake Pedal Actuator -VAG1869/2-.
• Close the bleeder valve and remove the bleeder bottle.
• Remove the brake hose.
• Pull both cover caps from the brake caliper bearing bushings.
• Loosen both guide pins and remove them from the brake caliper.
• Pull off the brake caliper from the brake carrier.
• Remove the brake pads from the brake caliper.

Installing

• The piston is pressed back.
• The outer brake pad sits on brake carrier.

• Insert the inner brake pad with spring in the brake caliper (piston).

When installing the brake caliper, make sure that the brake pad is not glued on to the brake caliper before the correct installation position is reached.

Do not damage the adhesive surface.

• Tighten the brake caliper to the brake carrier using both guide pins.Install both caps.
• Install both caps.
• Attach the brake hose on the brake caliper.
• Remove the Brake Pedal Actuator -VAG1869/2-.
• Insert the spring in the brake caliper.
• Connect the brake pad wear indicator connector.
• Bleed the brake system.
• Install the wheels.

Wheel bolt tightening specifications.

Note

• With the vehicle stationary, firmly press the brake pedal several times so that the brake pads are properly set in their respective operating position.
• Check the brake fluid level.

Tightening Specifications

Guide pin to brake carrier  30 Nm

Brake hose to brake caliper  35 Nm