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Joined: Sun Mar 11, 2018 11:48 pm

Re: Do the ECO Modes really extend the range?

Fri Jun 01, 2018 11:26 pm

"Flooring the pedal overrides the eco mode so why would that be more economical than driving more conservatively?" I don't think it would be and certainly never said that. I did that to see if the range estimate could be convinced Comfort was a better mode than ECO PRO+ and it can. But why?

To be fair, drive the same route as close to the same speeds as possible. I did/do repeatedly and mentioned that above. It seems to make no difference.

"Using EcoPro learned habits, I now do 15.5 on average at Comfort mode." This is sort of my point. The car is changing your programming, not the car's. And if your habits were good before, the change would be zero. It's a feel good button. I had a '75 Diesel Rabbit in college and used to drive 250 miles to see my girlfriend at her college. I drove slow and didn't use the A/C, coasted to a stop at red lights and stop signs. I just did not have extra $ for extra fuel.

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Re: Do the ECO Modes really extend the range?

Tue Jun 05, 2018 8:59 am

I coded my rex and locked the EcoPro mode at car starts. Drove for a couple months and have been used to it. Yesterday I tried the Comfort mode and found the output was so much stronger that I could hardly control my foot. I would say that one person may be able to mock the computer to get a good control of the car, and drives more efficiently than some other people. But for a single person, EcoPro mode should definitely help get more MPG than Comfort. In other words, if you do well at Comfort mode, you should do better at EcoPro.

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Re: Do the ECO Modes really extend the range?

Tue Jun 05, 2018 4:09 pm

I read somewhere the cornering lights are disabled in eco pro plus mode. How much does that save? Probably not much but I don't think you can manually control it.
2018 BMW i3s Mineral Gray / eMotorWerks Juicebox 30

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Re: Do the ECO Modes really extend the range?

Thu Jun 07, 2018 8:43 am

yes it does, tested both several times. I alway drive eco pro (more relaxed), comfort if i need to go really fast.
Eco pro+ when it is warm or Eco pro, almost no difference. Cold (freezing) bigger difference (heater+seats).
Now 30 degrees celcius and airco......10km less range in Eco Pro vs plus, not much.

They really do what they are designed for.

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Location: Nashua, NH USA

Re: Do the ECO Modes really extend the range?

Thu Jun 07, 2018 12:45 pm

Maybe another way to look at the Eco modes is that, while you might approach the efficiency they tend to force on you, they are packaged already for you and you don't have to think about things like 'oh, I have to turn off the a/c, and I have to be really careful about not accelerating too fast', etc. Plus, the computer watches things 100% of the time, while a human would never be able to approach that. Can the computer make mistakes? Certainly, but in general, it will do a much better job at maintaining efficiency than a person would. At one point, BMW claimed each successively greater Eco mode produced about a 20% efficiency gain.
Jim DeBruycker
2011 535i x-drive GT, 2014 i3 BEV

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Re: Do the ECO Modes really extend the range?

Mon Jun 25, 2018 9:44 pm

Something I found recently on a long trip is that the cruise control seems to make the ECO modes less useful. In Eco Pro+ If I am at 50mph in cruise control and bump it up to 65mph, it goes there just fine no different than comfort. Do the same without and it is a fight. This may be why I noticed so little difference as I use cruise control 90% of time.

I just drove a 900 mile trip and my average went from 13.2 kWh/100 to 14.6 kWh/100. I think this was due to most of it at 68mph on the highway and A?C on most of time.

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Re: Do the ECO Modes really extend the range?

Sat Jul 28, 2018 12:03 am

jadnashuanh wrote:A human may be able to replicate the general functions of the Eco modes, but he will not be able to do it as consistently. Depending on how conscientious you are at your efforts, you can approach that of the Eco modes, but would be unlikely to exceed them with a lot less stress and attention. While you may be able to turn off the HVAC, the computer also looks at the need for defrost, and will activate it before you may notice it is needed, providing a layer of safety. The same can be said (most of the time) for using the adaptive cruise control. It will notice the vehicle slowing down probably before you do and also return to set speed more economically. IMHO, though, that function doesn't work as great if you were not following someone, and come up upon a stopped vehicle...that decision/detection process slows the response down and can lead to a fairly abrupt stop, but it works pretty well if you were already following a vehicle in its sensor range. That's a disadvantage of a camera based system verses say LIDAR or radar which both would use more energy.
A fanatic of all things electric. Ridables like electric ice chests and stand up scooters I adore. Drones like DJI, I root for. I'm a fan of both, but nothing beats my love for my 2016 i3 Rex with Deka World. Shhh, don't tell my wife.

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