Quote:
Originally Posted by adc
The explanation is really simple. The decision to go with an electric parking brake forced this choice. That is the only caliper BMW makes which incorporates an e-brake function, simple as that.
Exotic high end cars which have electric parking brakes have used other solutions, like an additional mini-caliper on the rear wheel just for that function only. I don’t know that there is any fixed-caliper design out there with an incorporated electric parking brake.  |
There are two aftermarket integrated fixed piston/EPB calipers available that may work as replacement of the BMW sliding EPB calipers, but not compatible with the OEM 24mm rotors -they work with 28-32mm rotors.
As you said, the solution that works right now with the rear OEM rotors is separate 4-piston calipers and EPB calipers: