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Brake Force Display

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Old 06-30-2005, 03:35 AM
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Originally Posted by andy535d' date='Jun 29 2005, 09:49 PM
BFD is supposed to be standard in the UK, but I've never seen the additional stop light come on when following an e60.

Have tried it on mine, car stationary with engine running, stood on the brake pedal with someone watching behind and....nothing, just the usual single light.

Has anyone seen this feature working?
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Yes. Works for me. I have tested this many times. You have to brake very hard to turn the additional light on. It has to be software enabled by the dealer.
Old 06-30-2005, 03:37 AM
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Here is something I found on the web:


Brake Force Display already homologated for the BMW 7 Series in the USA and now also available in the 5 Series reduces the risk of bumper-to-bumper colli?sions when the driver applies the brakes hard by enlarging the brake
light area. Following completion of the homologation process, the system will also be introduced in other countries and then only requires activation of the software already available.


Could be another software issue?
Old 06-30-2005, 03:52 AM
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I think that quote is a bit dated. When the 2004 E60 came out, BFD wasn't active but I'm pretty sure that it is now working in most countries...
Old 06-30-2005, 03:58 AM
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Originally Posted by Berlin.BMER' date='Jun 30 2005, 06:37 AM
Here is something I found on the web:


Brake Force Display already homologated for the BMW 7 Series in the USA and now also available in the 5 Series reduces the risk of bumper-to-bumper colli?sions when the driver applies the brakes hard by enlarging the brake
light area. Following completion of the homologation process, the system will also be introduced in other countries and then only requires activation of the software already available.


Could be another software issue?
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Early cars had it disabled, but it now gets enabled in those cars by the newer software
Old 06-30-2005, 06:50 AM
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Its an option that has to be enabled by the dealer; cars sold in the UK ( and I suspect the EU ) are disabled because it requires a change in the law to allow for BFD. Type Approval regs don't permit BFD type lights.

The rule changes were/are supposed to be imminent, but neither my wifes' M3 convertible ( 8 weeks old ) nor my 535d ( 4 weeks old ) have BFD enabled. I've tried both with an 'emergency stop' from 30MPH, no BFD.

Dealer won't switch the feature on, he says because of Type Approval.....
Old 06-30-2005, 07:00 AM
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Originally Posted by cerbera' date='Jun 30 2005, 03:50 PM
Its an option that has to be enabled by the dealer; cars sold in the UK ( and I suspect the EU ) are disabled because it requires a change in the law to allow for BFD. Type Approval regs don't permit BFD type lights.

The rule changes were/are supposed to be imminent, but neither my wifes' M3 convertible? ( 8 weeks old ) nor my 535d ( 4 weeks old ) have BFD enabled. I've tried both with an 'emergency stop' from 30MPH, no BFD.

Dealer won't switch the feature on, he says because of Type Approval.....
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It has been approved in France in September 2004. Cars delivered before have been updated on demand and BFD has been enabled by default on all new cars like mine.
Old 06-30-2005, 08:42 AM
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I slammed on the anchors the other day and the ABS kicked in for the first time! (The car behind me wennt into another lane thank god and missed me)

Should have asked him if he saw my extra red light!!!
Old 06-30-2005, 03:25 PM
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Maybe the extra red light is what got his attention...
Old 06-30-2005, 04:15 PM
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I find the threshold too much before the BFD comes on. I mean by the time ABS comes up theres not much time left anyways... I kinda rather it come on when you are like applying a certain amount of pressure instead or how fast the car is decelerating...
Old 06-30-2005, 04:21 PM
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They're saving that for BFD-II, I imagine...


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