Audi Q7: Rear Brake Caliper
Overview - Rear Brake Caliper
1 - Protective Cap
- Refer to
→ Chapter "Brake Caliper Piston, Removing and Installing"
2 - Brake Caliper Piston
- Refer to
→ Chapter "Brake Caliper Piston, Removing and Installing"
- Thinly coat with Lithium Grease -G 052 150 A2-
3 - Gasket
- Refer to
→ Chapter "Brake Caliper Piston, Removing and Installing"
4 - Brake Caliper
Brake Caliper Piston, Removing and Installing
Special tools and workshop equipment
required
- Trim Removal Wedge -3409-
Removing
- The brake caliper is removed. Refer to
→ Chapter "Brake Caliper, Replacing".
- The parking brake motor is removed. Refer to
→ Chapter "Left and Right Parking Brake Motor - V282-/-V283-,
Removing and Installing".
Note
- Install the entire repair kit when servicing.
- To clean the brakes only use mineral spirits.
- Thinly coat the brake cylinder, brake caliper piston and
seal with Lithium Grease -G 052 150 A2-.
- Using an 8 mm internal multi-point socket, turn the spindle
counter-clockwise -arrow-. As a
result, the thrust nut pushes the brake caliper piston out of
the brake caliper.
- Remove the brake caliper piston with the protective cap from
the brake caliper.
- Remove the gasket using the Trim Removal Wedge -3409-.
- Clean the surfaces on the brake caliper piston and gasket
only with mineral spirits and then dry.
Installing
- Thinly coat the brake caliper piston and the gasket with
Lithium Grease -G 052 150 A2- before installing.
- Insert the gasket into the brake caliper.
- Place the protective cap with outer sealing lip on the brake
caliper piston.
- Turn the thrust nut far enough onto the spindle so that the
dimension -a- = 15 mm is reached.
- Insert the inner sealing lip of the protective cap into the
groove -arrows- in the brake
caliper using the Trim Removal Wedge -3409-.
- Slide the brake caliper piston -1-
onto the thrust nut, which is only possible in four positions.
- Carefully press the brake caliper piston into the brake
caliper by moving the brake caliper piston.
- Press the brake caliper piston far enough into the brake
caliper until it touches the thrust nut.
- Carefully turn the spindle clockwise in direction of
-upper arrow- until the thrust nut
is at the stop.
- The protective cap must fully contact the brake caliper
-arrows-.
- Press the brake caliper piston into the brake caliper by
hand.
- Outer sealing lip of protective cap will then engage in the
brake caliper piston groove.
READ NEXT:
Overview - Brake Booster/Brake Master Cylinder
1 - Brake Line
14 Nm
Brake master cylinder/secondary piston circuit to hydraulic unit
2 - Master Brake Cylinder
Replace c
Overview - Vacuum Pump
Overview - Vacuum Pump, 3.0L TFSI Engine
1 - Bolt
9 Nm
2 - Vacuum Pump
Refer to
→ Chapter "Vacuum Pump, Removing and Installing, 3.0L TFSI
Tests and Test Requirements
Special tools and workshop equipment
required
Brake Servo Tester -VAS6721-
The following checks will be helpful when performing Fault
Finding in case of complaints reg
SEE MORE:
Displayed connected devices
Requirement: the vehicle must be stationary and
the ignition must be switched on.
Applies to: MMI: Select on the home screen:
SETTINGS > Connected devices.
Possible menu items:
Telephone 1
Telephone 2
Audio player
Wi-Fi hotspot
Headset
Audi smartphone interf
Overview - Pistons and Connecting Rod
Note
Lubricate all bearing and contact surfaces when assembling.
Oil spray jet for piston cooling. Refer to → Fig. "Oil Spray Jet for Piston Cooling".
1 - Bolts
50 Nm +90º
Replace after removing
Use old bolts for the radial cle