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:
WARNING
Do not check or charge a Battery -A- when the visual
indicator has "no color or is
bright yellow". Jump starting must not be used!
There is a risk of explosion during testing,
charging or jump starting.
These Batteries -A- must be replaced.
Make sure the correct charging mode is
General Information
The temperature in the passenger compartment depends on the
amount of heat radiated through the windows and conducted by the
metal parts of the body. In hot weather it is possible to
achieve a more comfortable temperature for the passengers by
pumping off some of the heat.
As