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Discussion Starter · #1 ·
My C4 has a "B" mode, that seems to turn on the regenerative brakes. However, its not enabled by default, and if you switch from Drive to Reverse to Drive, it turns it off again.

Is this just dumb software, or is there an actual reason why it would not always be on by default? Or at least stay in the setting i put it in forever?


(It might be that its doing regen, even in the A mode, but if so, its so subtle I can't really do 1 pedal driving with it)
 

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It's a choice to use it on almost all EVs. Just like this as an option that you have to enable each time. Not everyone likes it, and it's actually less efficient than driving without regen if you simply plan ahead to avoid braking or slowing as much as possible in the first place. Also you should find that the car does regen by pressing the brake pedal too anyways.

If you do like it, by all means keep using it. I doubt you really have to go into reverse in the middle of many of your journeys so it should be as simple as just switching to B mode each time you set off on a journey then forget about it.
 

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Even in D mode, there is some regen when you lift off the accelerator on the PSA/Stellantis cars. As mentioned above, the first part of brake pedal movement is also regen only. the Foot brake is "blended" into the regen/physical brakes. B mode just gives you more regen earlier.

Personally, I like to use the shifter to move from D to B and back again, almost like I would a stick shift changing down a gear using engine braking in an ICE car. I always drive in D mode and I just flick it into and out of B mode for extra deceleration before I have to use the foot brake.

I'm not sure if the C4 has the stick shift or the newer mini button for the D and B modes. If it's the mini button then it's more of a pain to "feel" for the button. I tried it on a new Mokka-e and it wasn't as nice as just having the shifter to rest your hand on rather than feel for the unobtrusive button.
 

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Kia e-Niro 4 MY20, Zoe Z.E.50 GT Line
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My C4 has a "B" mode, that seems to turn on the regenerative brakes. However, its not enabled by default, and if you switch from Drive to Reverse to Drive, it turns it off again.

Is this just dumb software, or is there an actual reason why it would not always be on by default? Or at least stay in the setting i put it in forever?


(It might be that its doing regen, even in the A mode, but if so, its so subtle I can't really do 1 pedal driving with it)
That is just dumb software. It should remember your preference. The Zoe does, for example.
 

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Discussion Starter · #6 ·
Hm i hadnt considered that it might be better to go w/o on motorways. I typically use the cruise control, though. But, admittedly i have not yet been in heavy traffic.

I suppose it will become muscle memory soon enough. Like pushing the gear-rocker forward to go backward, and backwards to go forward. I bet there is a story behind that too....
 

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2016 Golf GTE, over 100k miles, full vw service history, new hybrid battery in 2021
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My C4 has a "B" mode, that seems to turn on the regenerative brakes. However, its not enabled by default, and if you switch from Drive to Reverse to Drive, it turns it off again.

Is this just dumb software, or is there an actual reason why it would not always be on by default? Or at least stay in the setting i put it in forever?


(It might be that its doing regen, even in the A mode, but if so, its so subtle I can't really do 1 pedal driving with it)
I use b mode as I find the car more comfortable to drive and as a bonus it saves the brakes, although on my Golf Gte come service time VW strip,clean and lubricate each calliper as part of the annual service. Although I prefer the b mode and the almost one pedal driving I actually find the car slightly more economical if allowed to coast more when the car is in hybrid mode with b mode deactivated. Not familiar with the c4, is it an all electric or hybrid?
 

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Discussion Starter · #8 ·
I use b mode as I find the car more comfortable to drive and as a bonus it saves the brakes, although on my Golf Gte come service time VW strip,clean and lubricate each calliper as part of the annual service. Although I prefer the b mode and the almost one pedal driving I actually find the car slightly more economical if allowed to coast more when the car is in hybrid mode with b mode deactivated. Not familiar with the c4, is it an all electric or hybrid?
It's fully electric. I just thought it was weird that it reset every time i turn off the car
 

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2016 Golf GTE, over 100k miles, full vw service history, new hybrid battery in 2021
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It's fully electric. I just thought it was weird that it reset every time i turn off the car
My car does the same, although there may be a setting you can tweak on the car or it might be feature that Citroen activate. I used to have a mini that the stop start button always defaulted to on after the engine started, I took it to a bmw specialist and they plugged a laptop into the car and activated a feature where the switch remember it’s last status when the engine was started.
 

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Remember that pressing the brake pedal initiates regen braking until friction brakes need to kick in

as others have said, I only use B mode as an engine braking mode

B is not one pedal driving so pointless imho

JJ
 

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I use B as an engine braking mode or for regular city-based one pedal driving. It's not good enough for all the time one pedal. D-mode is the best but I wish I could tune the amount of regen on it to half because it's still too heavy on D and wreck my efficicency :(.
 

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Vauxhall Corsa-e Elite Nav Premium Quartz Grey (Due Sept 2021)
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Having done a couple of trips to work in our Corsa-e which is either all M1 or normal roads and A38 i've found that D works better on the dual carriageways\motorway then change to B when back in town and more likely to be braking or coasting. With the car slowing quicker if you coast in B i dont trust folk to not rear end me as i will slow quicker than other cars if i lift on the accelerator. I'm still not trusting other drivers much after one pulled out on me and hit me on the way to work just before xmas that led to me ending up leaving the road, clearing a stone wall and coming to a rest 60yds into a farmers field on the way to work one morning!

One thing i'm not sure about is whether you are save to change between D & B modes whilst moving or do you have to be stopped to do it?
 

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Having done a couple of trips to work in our Corsa-e which is either all M1 or normal roads and A38 i've found that D works better on the dual carriageways\motorway then change to B when back in town and more likely to be braking or coasting. With the car slowing quicker if you coast in B i dont trust folk to not rear end me as i will slow quicker than other cars if i lift on the accelerator. I'm still not trusting other drivers much after one pulled out on me and hit me on the way to work just before xmas that led to me ending up leaving the road, clearing a stone wall and coming to a rest 60yds into a farmers field on the way to work one morning!

One thing i'm not sure about is whether you are save to change between D & B modes whilst moving or do you have to be stopped to do it?
The deceleration in B mode is less than that required by law to activate the brake lights. It is just like using engine braking in an ICE (down changing gear without using your brakes). No one should be so close as to have to slam on their brakes just because you lifted off in B mode. If they do, then they're fecking eejits and should re-take their driving test.

You can flip between D and B mode at any time. No need to be stationary. Personally, I drive in D mode all the time and just flick into B mode when I need a bit of extra deceleration without actually using the brakes.
 

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The deceleration in B mode is less than that required by law to activate the brake lights. It is just like using engine braking in an ICE (down changing gear without using your brakes). No one should be so close as to have to slam on their brakes just because you lifted off in B mode. If they do, then they're fecking eejits and should re-take their driving test.

You can flip between D and B mode at any time. No need to be stationary. Personally, I drive in D mode all the time and just flick into B mode when I need a bit of extra deceleration without actually using the brakes.
I agree they shouldnt be that close but daily driving on A38 and M1 i see plenty that are too close and as mentioned i have a big distrust of other drivers currently as the bloke shouldnt have pulled out of a junction in front of me and put me in a field but he did.

Thought that was the case and going from D to B is fine, just going from B to D i more often than not end up in Neutral and then have to pull the gear lever down to go back to D.
 

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Thought that was the case and going from D to B is fine, just going from B to D i more often than not end up in Neutral and then have to pull the gear lever down to go back to D.
Not sure which set up you have in your Corsa but in my 2020 model, there is a lever for flicking it between D and B modes. You just need to flick it backwards and it will alternate between D and B. If you are going into N then you must be flicking it forwards which is not necessary.

I'm not sure if it's only on the Mokka-e but they have discontinued with the lever and it is now a slider with a separate, tiny B button that is really difficult to find without actually looking down for it which is not conducive to safe driving if you want to flick between modes. What does the latest Corsa-e have?
 

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Not sure which set up you have in your Corsa but in my 2020 model, there is a lever for flicking it between D and B modes. You just need to flick it backwards and it will alternate between D and B. If you are going into N then you must be flicking it forwards which is not necessary.

I'm not sure if it's only on the Mokka-e but they have discontinued with the lever and it is now a slider with a separate, tiny B button that is really difficult to find without actually looking down for it which is not conducive to safe driving if you want to flick between modes. What does the latest Corsa-e have?
Right that's where i'm going wrong....in the Corsa-e its still the little lever with the unlock button for reverse etc. To go from B back to D i thought you had to push up not that you just pulled it back to flick between the two modes.
 

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Cheers...had a run out last night and just pulling back to cycle between D & B worked a treat....now if i'd read the manual i'd probably have known this already but nobody reads instruction manuals do they!!
 
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