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      01-13-2013, 05:14 PM   #23
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Page 105 of US manual. During heavy brake application, the inner brake lamps light up in addition. So no blinking.
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      01-13-2013, 05:20 PM   #24
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Quote:
Originally Posted by Tsuyoi View Post
Page 105 of US manual. During heavy brake application, the inner brake lamps light up in addition. So no blinking.
I imagine the rationale for the difference in UK and US markets is that US cars generally use the brake light to indicate (signal). So BMW had to implement dynamic braking another way - makes sense (although I've seen flashing brake lights on a Merc and it really worked well in that I realised he was slamming on the anchors). Additional brake lights aren't as effective (IMO after looking at the Vid posted above)
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      01-13-2013, 05:59 PM   #25
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Quote:
Originally Posted by zofinger View Post
I imagine the rationale for the difference in UK and US markets is that US cars generally use the brake light to indicate (signal). So BMW had to implement dynamic braking another way - makes sense (although I've seen flashing brake lights on a Merc and it really worked well in that I realised he was slamming on the anchors). Additional brake lights aren't as effective (IMO after looking at the Vid posted above)
Without looking into it, I'm guessing it's a NHTSA directive for all makes/models in the USA. I reprogrammed my S4 with the VCDS Ross Tech ODB2 software to have eurospec flashing tail lights when ABS is activated. There are other subtle differences like amber front corner lights etc.
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      01-13-2013, 06:01 PM   #26
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Quote:
Originally Posted by zofinger
Quote:
Originally Posted by Tsuyoi View Post
Page 105 of US manual. During heavy brake application, the inner brake lamps light up in addition. So no blinking.
I imagine the rationale for the difference in UK and US markets is that US cars generally use the brake light to indicate (signal). So BMW had to implement dynamic braking another way - makes sense (although I've seen flashing brake lights on a Merc and it really worked well in that I realised he was slamming on the anchors). Additional brake lights aren't as effective (IMO after looking at the Vid posted above)
Right, so judging by the UK and US manual differences, we have a definitive answer. US illuminates inner tail-lights and UK flash rapidly.
Win for the UK?

Just one more question then; do the hazard lights deploy just as the vehicle is coming to a stop like they do here in the UK? I assume in all markets, the windows and sunroof close in this extreme driving situation, along with seatbelt pre-tensioners.

Now I just want a video of the UK ones flashing!! Goddamn snow here!
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      01-13-2013, 08:41 PM   #27
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Wish someone can provide coding processes to have one way or the other.
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      01-13-2013, 10:58 PM   #28
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Quote:
Originally Posted by SomeRandomer123 View Post
I assume in all markets, the windows and sunroof close in this extreme driving situation, along with seatbelt pre-tensioners.
It's not a standard feature. The option called "Active Protection" does this & it's optional in most markets (doesn't seem like it's offered in USA at all).
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      01-14-2013, 02:01 AM   #29
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Quote:
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It's not a standard feature. The option called "Active Protection" does this & it's optional in most markets (doesn't seem like it's offered in USA at all).
Though I've quoted you, don't quote me (!) but I read here somewhere it isn't a US option because it's standard.
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      01-14-2013, 05:51 AM   #30
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although this is a 5 series and a UK model, you can see the brake lights flash here in this review of the 535d by autocar.



I always through that flasshing brake lights were allowed in the EU.
As others have stated, it may not be a legal standard in the US.
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      01-14-2013, 10:13 AM   #31
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Quote:
Originally Posted by zofinger View Post
Though I've quoted you, don't quote me (!) but I read here somewhere it isn't a US option because it's standard.
Don't think it's standard as a complete package, tho some of features maybe standard. I don't see option code 5AL on US-spec cars.
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      03-01-2014, 03:12 PM   #32
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It can be coded

http://www.f30post.com/forums/showpo...postcount=5416
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      06-19-2015, 06:38 PM   #33
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Can someone confirm that the coding above works? Thanks
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      06-20-2015, 05:31 AM   #34
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The F30's here in SA defintely have them. If you apply the brakes sharply, really hard - with no ABS intervention, both fog lights light up, when ABS is activated the lights flash, and when you come to a halt the hazard lights light up.
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      06-20-2015, 08:06 AM   #35
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- you can see it at 1:20
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      06-20-2015, 08:49 AM   #36
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Quote:
Originally Posted by SamS View Post
..you do ever see an F30 with the extra brake lighting action, look out, because they're either about to avoid an accident, or about to have one.
+1, and it's probably going to be the BMW rear-ended. It's the most common multiple car accident involving BMWs, as the car behind one can't brake as well as the BMW does.
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      06-20-2015, 09:38 AM   #37
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It's also called Brake Force Display. I've witnessed it like 20 times. Heavy braking starts flashing the rear fog lights and automatically turns on the turn signals as well.

http://www.bmw.com/com/en/insights/t..._force_display
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      06-20-2015, 09:39 AM   #38
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Quote:
Originally Posted by David9962000 View Post
Can someone confirm that the coding above works? Thanks
This coding works. Came standard on my F32.
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      06-20-2015, 11:05 AM   #39
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Quote:
Originally Posted by Billfitz View Post
+1, and it's probably going to be the BMW rear-ended. It's the most common multiple car accident involving BMWs, as the car behind one can't brake as well as the BMW does.
Can confirm that, twice actually
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      06-20-2015, 03:04 PM   #40
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Not sure what the point is if they flash when the end results seems to be a rear-ending anyway.........
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      06-20-2015, 03:56 PM   #41
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Quote:
Originally Posted by zofinger View Post
Don't the hazards also flash when the dynamic brake lights are activated (i.e. you'd know if you had activated them?)
Not in the US.

In the US if you slam on the brakes, the brake lights that are on the actual trunk lid will light up. Under normal braking they don't light up.
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      06-20-2015, 05:11 PM   #42
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Quote:
Originally Posted by fecurtis View Post
Not in the US.

In the US if you slam on the brakes, the brake lights that are on the actual trunk lid will light up. Under normal braking they don't light up.
Unless you code your car. I unlocked this feature and it works great.
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      06-20-2015, 06:24 PM   #43
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Bmw had this function way back in the E46 years. Albeit not activated due to different laws and regulations. Some were able to activate it with coding.

Is there a way to code the flashing so it activates with normal braking?
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      06-20-2015, 06:51 PM   #44
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Quote:
Originally Posted by zofinger View Post
Interesting, I felt sure the rear break lights flashed under heavy braking as opposed to additional lights being activated. Thanks - it's enlightened me!
Europe only.
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