Servicing rear wheel brakes (disc brakes)

Illustration shows 5 hole wheel bolt pattern. Servicing and construction of a 4-hole wheel bolt pattern is, however, identical.

• Stub axle
• Backplate
• Dished spring washer
• ◆ Larger seating surface towards backplate
• 60 Nm
• Backplate ring
• ◆ Installation position =>Fig.1
• Speed sensor rotor
• ◆ Insert drift through wheel bolt holes and drive off
• ◆ Drive on with suitable sleeve
• Seal

• Inner wheel bearing
• Brake disc
• ◆ Thickness 10 mm
• ◆ Wear limit 8 mm
• ◆ When worn, always renew both sides
• ◆ Assembly sequence for run-in brake discs
• ‒ Brake caliper
• ‒ Brake pads
• ‒ Brake carrier
• 110 Nm
• Thrust washer
• Hexagon nut
• ◆ Adjusting wheel bearing play
  
• ◆ Secure with locking ring and new split pin
• Grease cap
• ◆ Removing and installing
  => Page 42-49
• Axle beam

• Hexagon socket head bolt, 10 Nm
• ABS speed sensor
• ◆ Before inserting sensor, clean mounting hole inner surface and coat with lubricating paste G 000 650
• Brake hose bracket
• 65 Nm
• Guide pin
• Protective cap
• Self-locking bolt, 35 Nm
• ◆ Renew
• ◆ When loosening and tightening counter hold on guide pin
• Upper pad retaining spring
• ◆ Renew when changing pads

• Lower pad retaining spring
• ◆ Introduced from 10.92
• ◆ Renew when changing pads
• Brake carrier with guide pins and protective cap
• ◆ Supplied as replacement part assembled with sufficient grease on guide pins
• ◆ If protective caps or guide pins are damaged use repair kit. Use grease sachet supplied to lubricate guide pins.
• Brake pads
• ◆ Thickness 12 mm (Base running gear)
• ◆ Thickness 14 mm (Plus running gear)
• ◆ Checking thickness:

=> Maintenance manual

• ◆ Wear limit: 7mm (including backing plate)
• ◆ Always renew both sides
• ◆ Removing and installing
  

• Brake caliper
• ◆ Servicing => Page 47-37
• ◆ Modified brake caliper
• ◆ Adjust handbrake cable first after maintenance or replacement.
• The footbrake must not be operated first!
• =>Adjusting handbrake Page 46-35
• Outer wheel bearing
• Locking ring
• Split pin
• Spring clip
• Handbrake cable
• ◆ Adjusting handbrake
  => Page 46-35

→ Fig.1    Installation position of ring cover

• ‒ Dimension -a- 9.5 mm
• ‒ Drive on cover ring with tube VW 519