Recommended replacement interval for the part category Brake Caliper : 100000 km

Important!

This replacement procedure can be used for:
AUDI A6 Avant (4B5, C5) 2.4, AUDI A6 Avant (4B5, C5) 2.4 quattro … View more

The steps may slightly vary depending on the car design.

How to change front brake caliper on AUDI A6 C5 Avant [TUTORIAL AUTODOC]

All the parts you need to replace – Brake Calipers for A6 Avant (4B5, C5) and other AUDI models

Brake Caliper

AUDI A6 Avant (4B5, C5) 2.4

AUDI A6 Avant (4B5, C5) 2.4 quattro

Replacement: brake caliper – Audi A6 C5 Avant. Tools you might need:

                        Wire brush
                      
                        Brake cleaner 
                      
                        Electronic spray
                      
                        Copper grease 
                      
                        Torque wrench
                      
                        Combination spanner #10
                      
                        Combination spanner #11
                      
                        Drive socket # 10
                      
                        HEX bit No.H7
                      
                        Wheel impact socket #17
                      
                        Ratchet wrench
                      
                        Brake hose clip
                      
                        Fluid container
                      
                        Brake bleeder kit
                      
                        Crow bar
                      
                        Wheel chock

Buy tools

Replacement: brake caliper – Audi A6 C5 Avant. Tip:

The replacement procedure is identical for the left and right brake calipers on the same axle.
All work should be done with the engine stopped.

Replacement: brake caliper – Audi A6 C5 Avant. Use the following procedure:

Step 1

Open the bonnet.Unscrew the brake fluid reservoir cap.
Step 2

Secure the wheels with chocks.

Step 3

Loosen the wheel mounting bolts.Use wheel impact socket #17.
Step 4

Raise the front of the car and secure on supports.
Step 5

Unscrew the wheel bolts.

AUTODOC recommends:

Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. Audi A6 C5 Avant
Step 6

Remove the wheel.
Step 7

Disconnect the brake pad wear sensor plug.
Step 8

Disconnect the brake pads wear sensor.Use a crowbar.

Please note!

Some cars are not equipped with the brake pad wear sensor.
Step 9

Spread the brake pads.Use a crowbar.
Step 10

Clean the area where the brake hose is connected to the caliper, and the guide pins area.Use a wire brush.Use a brake cleaner.

AUTODOC recommends:

Replacement: brake caliper – Audi A6 C5 Avant. After applying the spray, wait a few minutes.
Step 11

Clamp the brake hose off using a brake hose clamp.
Step 12

Put a container for gathering brake fluid beneath.
Step 13

Unscrew the fastener connecting the brake hose to the brake circuit pipe.Use a combination spanner #11.
Step 14

Remove the dust boot caps of the brake caliper guide pins. Use a crowbar.
Step 15

Unscrew the brake caliper fastening.Use HEX No.H7.Use a ratchet wrench.
Step 16

Detach the brake caliper retaining spring.Use a crowbar.
Step 17

Remove the brake caliper.

Replacement: brake caliper – Audi A6 C5 Avant. Tip from AUTODOC:

When replacing the brake caliper, it is recommended to check the brake hose for damages and, if necessary, to replace it with a new one. When replacing a brake caliper it is recommended to replace brake pads, check the state of the brake discs and replace them with new ones if necessary.If no new guide pins were supplied in a kit with the new brake calipers, use the old pins. Check the brake caliper bracket, brake caliper guide pins and boots. Clean them. Replace, if necessary.
Step 18

Unscrew the mounting bracket that connects the brake hose to the brake caliper.

Step 19

Remove the brake pads.

Step 20

Clean the brake pipe fastener.Use a wire brush.Use a brake cleaner.

AUTODOC recommends:

Replacement: brake caliper – Audi A6 C5 Avant. After applying the spray, wait a few minutes.

Step 21

Unscrew the fastener connecting the brake pipe to the brake caliper. Use a combination spanner #11.
Step 22

Treat the brake pipe. Use a brake cleaner.

Replacement: brake caliper – Audi A6 C5 Avant. AUTODOC experts recommend:

After applying the spray, wait a few minutes.
Step 23

Screw in the fastener connecting the brake pipe to the brake caliper.Use a combination spanner #11.
Step 24

Screw in the fasteners of the brake hose bracket.Use a combination spanner #10.
Step 25

Install the brake pads.
Step 26

Install the brake caliper and fix it.Use HEX No.H7.Use a torque wrench.Tighten it to 35 Nm torque.
Step 27

Install the dust boot caps of the brake caliper guide pins.
Step 28

Install the brake pad retaining clip.Use a crowbar.
Step 29

Treat the brake hose.Use a brake cleaner.

AUTODOC recommends:

Replacement: brake caliper – Audi A6 C5 Avant. After applying the spray, wait a few minutes.
Step 30

Screw the brake pipe to the brake hose.Use a combination spanner #11.
Step 31

Treat the brake pad wear sensor plug.Use dielectric grease.
Step 32

Connect the brake pads wear sensor.
Step 33

Connect the brake pad wear sensor plug.
Step 34

Remove the brake hose clamp.
Step 35

Connect the brake bleeder kit to the brake bleeder screw.
Step 36

Undo the brake bleeder screw.Use a combination spanner #10.
Step 37

Bleed the brake caliper system.Without starting the engine, press the brake pedal several times until you feel significant resistance.
Step 38

Tighten the brake bleeder screw.Use a combination spanner #10.
Step 39

Disconnect the brake bleeder kit.

Step 40

Clean dirt from the brake hose bolt.Use a brake cleaner.

Replacement: brake caliper – Audi A6 C5 Avant. Professionals recommend:

After applying the spray, wait a few minutes.
Step 41

Tighten the brake caliper bleed screw. Use a drive socket #10.Use a torque wrench.Tighten it to 7 Nm torque.
Step 42

Treat the surface where the brake disc contacts the wheel rim. Use copper grease.
Step 43

Clean the brake disk surface.Use a brake cleaner.

AUTODOC recommends:

Replacement: brake caliper – Audi A6 C5 Avant. After applying the spray, wait a few minutes.
Step 44

Install the wheel.

AUTODOC recommends:

Warning! To avoid injury, hold the wheel while screwing in the fastening bolts on the car. Audi A6 C5 Avant
Step 45

Screw in the wheel bolts.Use wheel impact socket #17.
Step 46

Lower the car and working in a cross order, tighten the wheel bolts.Use wheel impact socket #17.Use a torque wrench.Tighten it to 120 Nm torque.
Step 47

Remove the jacks and chocks.

Replacement: brake caliper – Audi A6 C5 Avant. AUTODOC experts recommend:

Check the brake fluid level in the expansion tank and refill if necessary.
Step 48

Tighten the brake fluid reservoir cap. Close the hood.

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