Audi A6 Typ 4G: Overview - Rear Brakes

Overview - Rear Brakes, Steel Brakes

  Note

Applies to all steel rear brakes

1 - Electromechanical Parking Brake Motor

• Left Parking Brake Motor -V282-/Right Parking Brake Motor -V283-
• Left Parking Brake Motor -V282-/Right Parking Brake Motor -V283-, removing and installing. Refer to → Chapter "Left/Right Parking Brake Motor -V282-/-V283-, Removing and Installing".
• Electromechanical Parking Brake Control Module -J540-, removing and installing. Refer to → Chapter "Electromechanical Parking Brake Control Module -J540-, Removing and Installing".

2 - Bolts

• 12 Nm

3 - Brake Pad Wear Sensor

• Left Rear Brake Pad Wear Sensor -G36-/Right Rear Brake Pad Wear Sensor -G37-
• For inner brake pad
• Replace if damaged
• Cannot be removed without being damaged
• Removing and installing. Refer to → Chapter "Brake Pad Wear Indicator Wire, Removing and Installing, Steel Brakes".

4 - Bleed Screw

• 13 Nm
• Bleed the brake system. Refer to → Chapter "Hydraulic System, Standard Bleeding".

5 - Protective Cap

6 - Bolt

• 35 Nm
• Self-locking
• Replace after removing
• When loosening and tightening, counterhold at the guide pin

7 - Bracket

• For the connector

8 - Protective Cover

• For the guide pins
• Install the repair kit if the caps or guide pins are damaged. Use the supplied grease packet to lubricate guide pins

9 - Guide Pin

• Check ease of movement
• Install the repair kit if the caps or guide pins are damaged. Use the supplied grease packet to lubricate guide pins

10 - Bolt

• 100 Nm +90º
• With a washer
• Note the different bolt lengths. The long bolt sits above.
• Replace after removing

11 - Brake Hose

• Make sure the brake hose is routed correctly. Make sure the brake hose is not blocked, bent or rubbing against the vehicle.
• Replace if damaged
• Make sure that tabs are properly seated in the grooves on the bracket.
• 20 Nm (brake hose to brake caliper)

12 - Bracket

• For brake hose
• Welded onto the body

13 - Spring

• Replace if damaged

14 - Brake Line

• 14 Nm (brake line to brake hose)

15 - Bracket

• For brake hose and electrical wires

16 - Bolt

• 9 Nm

17 - Stub Axle Carrier

18 - Brake Shield

• Removing and installing. Refer to → Chapter "Brake Shield, Removing and Installing".

19 - Bolt

• 10 Nm

20 - Brake Rotor

• Allocation. Refer to the Parts Catalog.
• Wear limit. Refer to → Chapter "Technical Data, Brakes"
• Always replace on both sides of the axle
• Removing and installing. Refer to → Chapter "Brake Rotor, Removing and Installing, Steel Brakes".

21 - Bolt

• 10 Nm

22 - Brake Pad Spring

• Replace when pads are replaced
• Make sure it fits correctly in the brake carrier

23 - Brake Pads

• Allocation. Refer to the Parts Catalog.
• Checking pad thickness. Refer to →  for the wear limit.
• Always replace on both sides of the axle
• Removing and installing. Refer to → Chapter "Brake Pads, Removing and Installing, Steel Brakes".
• Note installation position:
  • Identification "BA" = outer brake pad
  • Identification "BI" = inner brake pad with brake pad wear indicator mount

24 - Brake Pad Spring

• Replace when pads are replaced
• Make sure it fits correctly in the brake carrier

25 - Brake Carrier

• Delivered as an assembled replacement part with sufficient grease on the guide pins
• Install the repair kit if the caps or guide pins are damaged. Use the supplied grease packet to lubricate guide pins

26 - Brake Caliper

• Removing and installing. Refer to → Chapter "Brake Caliper, Removing and Installing, Steel Brakes".
• Replacing. Refer to → Chapter "Brake Caliper, Replacing, Steel Brakes".
• Servicing. Refer to → Chapter "Brake Caliper Piston, Removing and Installing".

27 - O-Ring

• Replace after removing

Overview - Rear Brakes, Ceramic Brakes

1 - Electromechanical Parking Brake Motor

• Left Parking Brake Motor -V282-/Right Parking Brake Motor -V283-
• Left Parking Brake Motor -V282-/Right Parking Brake Motor -V283-, removing and installing. Refer to → Chapter "Left/Right Parking Brake Motor -V282-/-V283-, Removing and Installing".
• Electromechanical Parking Brake Control Module -J540-, removing and installing. Refer to → Chapter "Electromechanical Parking Brake Control Module -J540-, Removing and Installing".

2 - Bolts

• 12 Nm

3 - Bracket

• For brake pad wear sensor electrical wire

4 - Brake Pad Wear Sensor

• Left Rear Brake Pad Wear Sensor -G36-/Right Rear Brake Pad Wear Sensor - G37-
• Replace if damaged
• Cannot be removed without damaging it
• Removing and installing. Refer to → Chapter "Brake Pad Wear Indicator Wire, Removing and Installing, Ceramic Brakes".

5 - Bleed Screw

• 13 Nm
• Bleed the brake system. Refer to → Chapter "Hydraulic System, Standard Bleeding".

6 - Protective Cap

7 - Bolt

• 35 Nm
• Self-locking
• Replace after removing
• When loosening and tightening, counter-holding the guide pin

8 - Bracket

• For the connector

9 - Protective Cover

• For the guide pins
• Install the repair kit if the caps or guide pins are damaged. Use the supplied grease packet to lubricate the guide pins.

10 - Guide Pin

• Check ease of movement
• Install the repair kit if the caps or guide pins are damaged. Use the supplied grease packet to lubricate the guide pins.

11 - Bolt

• 100 Nm +90º
• With a washer
• Note the different bolt lengths. The long bolt sits above.
• Replace after removing
• When loosening and tightening, counter-holding the guide pin

12 - Brake Hose

• Make sure the brake hose is routed correctly. Make sure the brake hose is not blocked, bent or rubbing against the vehicle.
• Replace if damaged
• Make sure that tabs are properly seated in the grooves on the bracket.
• 20 Nm (brake hose to brake caliper)

13 - Bracket

• For brake hose
• Welded onto the body

14 - Spring

• Replace if damaged

15 - Brake Line

• 14 Nm (brake line to brake hose)

16 - Bracket

• For brake hose and electrical wires

17 - Bolt

• 9 Nm

18 - Stub Axle Carrier

19 - Brake Shield

• Removing and installing. Refer to → Chapter "Brake Shield, Removing and Installing".

20 - Bolt

• 10 Nm

21 - Brake Rotor

• Allocation. Refer to the Parts Catalog.
• Brake Rotor Thickness. Refer to → Chapter "Ceramic Brake Rotor, Determining Wear".
• Additionally check for:
  • Cracks in connection area. Refer to → Chapter "Cracks in Ceramic Brake Rotor Connection Area".
  • Chamfer. Refer to → Chapter "Chamfer".
  • Nicks. Refer to → Chapter "Nicks on Ceramic Brake Rotor".
  • Crack in cooling channel. Refer to → Chapter "Crack in Cooling Channel".
  • Brake Rotor Thickness. Refer to → Chapter "Ceramic Brake Rotor, Determining Wear".
• Always replace on both sides of the axle
• Removing and installing. Refer to → Chapter "Brake Rotor, Removing and Installing, Ceramic Brakes".

22 - Bolt

• 10 Nm

23 - Brake Pad Spring

• Replace when pads are replaced
• Make sure it fits correctly in the brake carrier

24 - Brake Pads

• Checking pad thickness. Refer to →  for the wear limit.
• Always replace on both sides of the axle
• Allocation. Refer to the Parts Catalog.
• Removing and installing. Refer to → Chapter "Brake Pads, Removing and Installing, Ceramic Brakes".

25 - Brake Pad Spring

• Replace when pads are replaced.
• Make sure it fits correctly in the brake carrier.

26 - Brake Carrier

• Delivered as an assembled replacement part with sufficient grease on the guide pins
• Install the repair kit if the caps or guide pins are damaged. Use the supplied grease packet to lubricate guide pins

27 - Brake Caliper

• Removing and installing. Refer to → Chapter "Brake Caliper, Removing and Installing, Ceramic Brakes".
• Replacing. Refer to → Chapter "Brake Caliper, Replacing, Ceramic Brakes".
• Servicing. Refer to → Chapter "Brake Caliper Piston, Removing and Installing".

28 - O-Ring

• Replace after removing

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