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How to change front brake caliper on BMW Z4 Roadster (E85) – 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:
BMW Z4 Roadster (E85) 3.0i, BMW Z4 Roadster (E85) 2.5i, BMW Z4 Roadster (E85) 2.2i, BMW Z4 Roadster (E85) 2.0i, BMW Z4 Roadster (E85) 2.5i, BMW Z4 Roadster (E85) 2.5si, BMW Z4 Roadster (E85) 2.5si … View more
The steps may slightly vary depending on the car design.
BMW Z4 Roadster (E85) 3.0i, BMW Z4 Roadster (E85) 2.5i, BMW Z4 Roadster (E85) 2.2i, BMW Z4 Roadster (E85) 2.0i, BMW Z4 Roadster (E85) 2.5i, BMW Z4 Roadster (E85) 2.5si, BMW Z4 Roadster (E85) 2.5si … 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 Z4 Roadster (E85) and other BMW models
Brake caliper
Alternative products

Wire brush
WD-40 spray
Brake cleaner
Copper grease
Combination spanner #9
Flare nut spanner #14
HEX bit No.H7.
Wheel impact socket #17
Ratchet wrench
Torque wrench
Flat Screwdriver
Brake bleeder kit
Crow bar
Wheel chock
Replacement: brake caliper – BMW Z4 (E85). Tip from AUTODOC experts:
- 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 – BMW Z4 (E85). Take the following steps:
- Step 1Open the bonnet. Unscrew the brake fluid reservoir cap.Step 2Secure the wheels with chocks.
- Step 3Loosen the wheel mounting bolts. Use wheel impact socket #17.Step 4Raise the front of the car and secure on supports.Step 5Unscrew the wheel bolts.Replacement: brake caliper – BMW Z4 (E85). Tip:To avoid injury, hold up the wheel when unscrewing the bolts.
- Step 6Remove the wheel.
- Step 7Detach the brake caliper retaining spring. Use a flat screwdriver.
- Step 8Remove the dust boot caps of the brake caliper guide pins. Use a crowbar.
- Step 9Clean 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 – BMW Z4 (E85). After applying the spray, wait a few minutes.
- Step 10Loosen the brake hose fastening. Use a flare nut spanner #14.
- Step 11Clean the brake caliper fasteners. Use a wire brush. Use WD-40 spray.Step 12Unscrew the brake caliper fastening. Use HEX No.H7. Use a ratchet wrench.
- Step 13Spread the brake pads. Use a crowbar.
- Step 14Remove the brake caliper.Replacement: brake caliper – BMW Z4 (E85). AUTODOC recommends: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.Check the brake caliper bracket, brake caliper guide pins and boots. Clean them. Replace, if necessary.Don't press the brake pedal after the brake caliper has been removed. As a result, the piston can fall out from the brake cylinder, and brake fluid leakage and depressurization of the system may occur.
- Step 15Remove the brake pads.
- Step 16Unscrew the brake hose from the brake caliper. Use a flare nut spanner #14.
- Step 17Treat the brake hose. Use a brake cleaner.Replacement: brake caliper – BMW Z4 (E85). Tip from AUTODOC:After applying the spray, wait a few minutes.
- Step 18Install and fix the brake hose into a new caliper.
- Step 19Install the brake pads.Replacement: brake caliper – BMW Z4 (E85). AUTODOC experts recommend:If going to use the old brake pads, clean them.Use a wire brush.
- Step 20Install the brake caliper and fix it. Use HEX No.H7. Use a torque wrench. Tighten it to 30 nm torque.
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