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X3 F25 (2011 - current)
The latest X3 brings some added style and some new features to the BMW SUV family. Talk about the new F25 now!

 
 
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Old 09-24-2013, 08:12 AM
wavewuver wavewuver is online now
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Location: CT
 
Join Date: Sep 2003
Posts: 316
Mein Auto: 2011 X3
Rear Brake Pad Replacement, F25, BMW X3 - DIY

Getting ready to replace my rear pads. Unlike most cars, the F25's have an electromechanical parking brake integrated in the brake caliper. The E89, F10 and F12's also have this system, and maybe others.

Gone are the days of simply compressing the caliper piston with my C clamp. There is now an electromechanical actuator attached to the back side of the caliper. This actuator prevents you from simply compressing the piston and installing new pads.

There is a little info on the web, but not much. What I've found so far is that you can easily remove the actuator and then manually retract the internal parking brake spindle. The actuator is attacked to the caliper with two torx bolts. After removing the actuator, there is a splined spindle that needs to be turned in order to back off the parking brake spindle inside the caliper piston. One source says you need a 7mm allen wrench and turn the spindle clockwise. The other source says to turn the spindle counter clockwise. I'm not sure which way is correct.

Does anyone have any additional info on this topic?

Last edited by wavewuver; 10-01-2013 at 02:37 PM.
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