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      01-11-2012, 07:28 PM   #8
Nahoa
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Drives: F25 35i Mineral Silver/Black
Join Date: May 2008
Location: Virginia

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Quote:
Originally Posted by Lotus7 View Post
As Nahoa stated, when using Auto-Hold the service brakes have already brought the vehicle to a full stop, so there is no additional rear pad wear. The only additional mechanical wear is in the EMF actuators (the electronically operated servos) that push on the rear of the (rear-only) brake caliper pistons and are used for Auto-Hold, HDC, anti-slip torque vectoring, Dynamic Cruise Control, and Stability Control. They are designed for constant use.

The EMF actuator duty cycle is actually monitored and if they are used too much (typically during HDC operation) a brake overheat warning is displayed.

I wonder if anyone on this Forum has ever used HDC? I know I haven't, and probably never will.
I used it once -- not because I needed to, only 'cause I wanted to mess with it. I've been looking for a snowy incline to descend, but haven't even gotten the snow so far.
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