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How to change rear brake caliper on AUDI A6 Saloon (4B2, C5) – replacement guide
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Recommended replacement interval for the part category Brake caliper : 100000 km
Important!
This replacement procedure can be used for:
AUDI A6 Saloon (4B2, C5) 1.8 T, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 1.8, AUDI A6 Saloon (4B2, C5) 2.7 T, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 1.8 T, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) 1.8, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.0, AUDI A6 Saloon (4B2, C5) 3.0, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 3.0 … View more
The steps may slightly vary depending on the car design.
AUDI A6 Saloon (4B2, C5) 1.8 T, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 1.8, AUDI A6 Saloon (4B2, C5) 2.7 T, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 1.8 T, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) 1.8, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 2.8, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.0, AUDI A6 Saloon (4B2, C5) 3.0, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 1.9 TDI, AUDI A6 Saloon (4B2, C5) 2.4, AUDI A6 Saloon (4B2, C5) 2.5 TDI, AUDI A6 Saloon (4B2, C5) 3.0 … View more
The steps may slightly vary depending on the car design.
This video shows the replacement procedure of a similar car part on another vehicle
All the parts you need to replace – Brake Calipers for A6 Saloon (4B2, C5) and other AUDI models
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Copper grease
Torque wrench
Combination spanner #10
Combination spanner #13
Combination spanner #15
Drive socket # 10
Drive socket # 13
Wheel impact socket #17
Ratchet wrench
Brake hose clip
Water pump pliers
Round-nose pliers
Brake bleeder kit
Crow bar
Wheel chock
Replacement: brake caliper – AUDI A6 (4B2, C5). AUTODOC experts recommend:
- 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 (4B2, C5). Take the following steps:
- Step 1Open the bonnet. Unscrew the brake fluid reservoir cap.Step 2Secure the wheels with chocks.Step 3
Loosen the wheel mounting bolts. Use wheel impact socket #17. - Step 4Raise the rear 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 (4B2, C5) - Step 6
Remove the wheel. - Step 7
Clean the fastener of the parking brake cable. Use a wire brush. Use a brake cleaner.AUTODOC recommends:Replacement: brake caliper – AUDI A6 (4B2, C5). After applying the spray, wait a few minutes. - Step 8
Release the parking brake cable. Use water pump pliers. Use round-nose pliers. - Step 9
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.Replacement: brake caliper – AUDI A6 (4B2, C5). Tip:After applying the spray, wait a few minutes. - Step 10
Clamp the brake hose off using a brake hose clamp. - Step 11
Loosen the brake hose fastening. Use a combination spanner #13. - Step 12
Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray. - Step 13
Unscrew the brake caliper fastening. Use a combination spanner #13. Use a combination spanner #15. Use a drive socket #13. Use a ratchet wrench. - Step 14
Remove the brake caliper.Replacement: brake caliper – AUDI A6 (4B2, C5). 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 15
Remove the brake pads. Use a crowbar. - Step 16
Install the brake pads. - Step 17
Install the brake caliper and fix it. Use a combination spanner #13. Use a combination spanner #15. Use a torque wrench. Tighten it to 35 Nm torque. - Step 18
Treat the brake hose. Use a brake cleaner.AUTODOC recommends:Replacement: brake caliper – AUDI A6 (4B2, C5). After applying the spray, wait a few minutes. - Step 19
Install and fix the brake hose into a new caliper. Use a combination spanner #13. - Step 20
Tighten the fastener connecting the brake pipe to the brake caliper. Use a drive socket #13. Use a torque wrench. Tighten it to 40 Nm torque. - Step 21
Treat the brake hose. Use a brake cleaner.Replacement: brake caliper – AUDI A6 (4B2, C5). Professionals recommend:After applying the spray, wait a few minutes. - Step 22
Remove the brake hose clamp.
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