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How to change front brake pad wear sensor on BMW Z4 Roadster (E85) – replacement guide
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Recommended replacement interval for the part category Sensor, brake pad wear : 30000 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 … 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 … 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 Pad Wear Sensor for Z4 Roadster (E85) and other BMW models
Alternative products

Wire brush
Brake cleaner
Electronic spray
Copper grease
Torque wrench
Wheel impact socket #17
Round-nose pliers
Wheel chock
Replacement: brake pad wear sensor – BMW Z4 (E85). AUTODOC experts recommend:
- The replacement procedure is identical for both brake pad wear sensors on the same axle.
- Please note: all work on the car – BMW Z4 (E85) – should be done with the engine switched off.
Carry out replacement in the following order:
- 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 4Lift the car using a jack or place it over an inspection pit.Step 5
Unscrew the wheel bolts.AUTODOC recommends:Warning! To avoid injury, hold the wheel while unscrewing the fastening bolts. BMW Z4 (E85) - Step 6
Remove the wheel. - Step 7
Remove the brake pad wear sensor from the brake pad. Use round-nose pliers. - Step 8
Open the cover of the wiring housing. - Step 9
Disconnect the brake pad wear sensor wire. - Step 10
Detach the connector of the brake pad wear sensor. - Step 11
Treat the brake pad wear sensor plug. Use dielectric grease. - Step 12
Attach the connector of the brake pad wear sensor. - Step 13
Connect the brake pad wear sensor wire.
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