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 Post subject: Transmission B Mode and Brake Lights on deceleration
PostPosted: Thu Sep 06, 2018 10:02 pm 
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Joined: Tue May 15, 2018 10:27 am
Posts: 25
Does anyone know how to disable this ? Brake lights don't come on when I downshift in my other cars, I don't like it.
Thanks

PS Yes I know why it exists, but it comes on with even the slightest back off the accelerator.


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 Post subject: Re: Transmission B Mode and Brake Lights on deceleration
PostPosted: Fri Sep 07, 2018 9:00 am 
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Joined: Fri Jan 23, 2015 1:18 pm
Posts: 360
Do you like being rear ended? I understand you want to defeat the safety feature in the car; I just don't understand why you would want to assist a distracted texting idiot to crash into your car. Also, if the insurance company found out, you may lose coverage for that crash. Have fun!

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 Post subject: Re: Transmission B Mode and Brake Lights on deceleration
PostPosted: Fri Sep 07, 2018 9:02 am 
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Joined: Tue May 15, 2018 10:27 am
Posts: 25
I will take the risk over appearing to be a braking riding mother f*cker.


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 Post subject: Re: Transmission B Mode and Brake Lights on deceleration
PostPosted: Fri Sep 07, 2018 1:04 pm 
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Joined: Mon Nov 20, 2017 12:30 pm
Posts: 95
ob2s wrote:
I will take the risk over appearing to be a braking riding mother f*cker.


Then don't use B Mode. I find it mostly useless and if anything an impairment to efficiency. The e-Golf is not a great example of a "one foot EV" like a Tesla.

D1, D2, and D3 modes can be useful and do not turn on brake lights, but even then I only use those modes when descending long grades.

As far as downshifting, a Porsche mechanic friend (who also raced Porsches at the time) told me back in the 1980s that brakes are a lot cheaper to replace than clutches and driveline parts. That advice changed my driving style forever. Downshifting is great for holding speed down long grades (as are D1-3 on the e-Golf) without cooking brakes, but not so good to setup entry speed into a corner, especially in a track environment. Being in the correct gear at the apex and tail out is important, of course, but that is to accelerate out of the turn, not slow down on entry.

To answer your question, the connection between B Mode and the brake light is in software. You would need to be very good at coding to figure that mod out.

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2015 e-Golf SEL my wife's daily, shared on weekends
2000 BMW 540iT my daily and our range extender
1986 Audi 4000 quattro "the cockroach" my alternate daily
1983 Audi Ur Quattro "the garage queen" looks pretty and appreciates daily


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 Post subject: Re: Transmission B Mode and Brake Lights on deceleration
PostPosted: Fri Sep 07, 2018 1:23 pm 
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Joined: Fri Jan 23, 2015 1:18 pm
Posts: 360
I remember reading that while D1 does not activate the brake lights, D2 and D3 do activate the brake lights. So, you might want to verify this....
I use B mode all the time and I have gotten very used to it so that I am able to usually bring the car to a complete stop without using the brake pedal. To each his own.

If you don't want to embark upon hacking the software to stop the brake lights turning on, it seems disconnecting the lights might be the only way. Good luck!

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 Post subject: Re: Transmission B Mode and Brake Lights on deceleration
PostPosted: Fri Sep 07, 2018 2:17 pm 
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Joined: Tue May 15, 2018 10:27 am
Posts: 25
msvphoto wrote:
ob2s wrote:
As far as downshifting, a Porsche mechanic friend (who also raced Porsches at the time) told me back in the 1980s that brakes are a lot cheaper to replace than clutches and driveline parts.


Thanks, my only manual car is 56 Mercedes. I downshift because the brakes are shoes....

Thanks for the tip on D3.


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 Post subject: Re: Transmission B Mode and Brake Lights on deceleration
PostPosted: Fri Sep 07, 2018 4:32 pm 
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Joined: Mon Oct 05, 2015 2:01 pm
Posts: 2105
ob2s wrote:
I will take the risk over appearing to be a braking riding mother f*cker.


Stick it in D3 instead. Or actually just leave it in "D" and use the brake pedal like an normal, intelligent, fully functional driver.

Your self centered thoughtlessness to the standards of all other drivers on the road that need brake lights to tell them to step on the brakes is something that should keep you off of our public roads. Perhaps your driver's license instead, needs to be disabled, you've forgotten what, if anything, you learned in driver's education. In addition to being a moving violation for non functioning brake lights under braking conditions.

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 Post subject: Re: Transmission B Mode and Brake Lights on deceleration
PostPosted: Fri Sep 07, 2018 4:38 pm 
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Joined: Mon Oct 05, 2015 2:01 pm
Posts: 2105
msvphoto wrote:
ob2s wrote:
I will take the risk over appearing to be a braking riding mother f*cker.


Then don't use B Mode. I find it mostly useless and if anything an impairment to efficiency. The e-Golf is not a great example of a "one foot EV" like a Tesla.

D1, D2, and D3 modes can be useful and do not turn on brake lights, but even then I only use those modes when descending long grades.

As far as downshifting, a Porsche mechanic friend (who also raced Porsches at the time) told me back in the 1980s that brakes are a lot cheaper to replace than clutches and driveline parts. That advice changed my driving style forever. Downshifting is great for holding speed down long grades (as are D1-3 on the e-Golf) without cooking brakes, but not so good to setup entry speed into a corner, especially in a track environment. Being in the correct gear at the apex and tail out is important, of course, but that is to accelerate out of the turn, not slow down on entry.

To answer your question, the connection between B Mode and the brake light is in software. You would need to be very good at coding to figure that mod out.


Nailed it /\ Brakes are cheap. Bodywork when someone rear ends you, still got your deductible, plus shop time, plus rental while in the shop. Not worth it. Use the brake lights.

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 Post subject: Re: Transmission B Mode and Brake Lights on deceleration
PostPosted: Fri Sep 07, 2018 5:27 pm 
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Joined: Sat Dec 19, 2015 4:16 pm
Posts: 107
D3 gives almost as much regen as B but without brake lights - I prefer it in traffic.

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 Post subject: Re: Transmission B Mode and Brake Lights on deceleration
PostPosted: Fri Sep 07, 2018 5:30 pm 
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Joined: Tue May 15, 2018 10:27 am
Posts: 25
JoulesThief wrote:
ob2s wrote:
Perhaps your driver's license instead, needs to be disabled, you've forgotten what, if anything, you learned in driver's education.

I want to keep things civil, and since this forum has helped me, and I shall be, however I don't give two shytes what you think about my request or what you think should happen to me. If the brake light came as function of the G's of deceleration rather than merely removing your foot, I'd be ok with it. So if D3 yields 75% of the deceleration of B that only makes me a 75% dick. Only 75% of my license should be revoked ? You don't know me, you don't know how I drive, so zip it.


Last edited by ob2s on Fri Sep 07, 2018 5:37 pm, edited 1 time in total.

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