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      08-22-2020, 08:39 PM   #23
James_G0530d
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Quote:
Originally Posted by TurtleBoy View Post
It is not possible to code off the Start/Stop feature although it can be coded to use the last setting on startup.
Now that the ASS enable/disable button is gone, and coding is for remembering the last ASS setting (enabled/disabled), then logic dictates the coding functionality will be gone as well.

Interesting, we will have to wait for someone with an FY21 to try it.
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      08-22-2020, 08:40 PM   #24
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I picked up my MY21 X40i on Wednesday also. No ASS button, and the engine actually does stop. My workaround is to drive in Sport Individual so it doesn't shut off, but I have to select that mode each time I start the car. I haven't gotten into coding yet....
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      08-22-2020, 09:16 PM   #25
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I have no problem with ASS, but if you look at 20's for sale and then 21's you will see that the button is no more.
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      08-22-2020, 09:17 PM   #26
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Here is a YouTube on the 48v mild hybrid.

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      08-22-2020, 09:22 PM   #27
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Quote:
Originally Posted by rdwboulder2 View Post
FWIW I don't select any driving mode, but I always drive in "S" or "M" never in " D". The manual does discuss the Mild-Hybrid having a coasting mode but it only engages with transmission in "D". Something could have shown on the instrument cluster that I just didn't notice.
Okay that explains your X5 not shutting off since that will engage Sport mode and turn off the auto start/stop. At this point I think the dealer meant the button was eliminated and not start/stop. You can verify that by driving in the default Comfort mode and see if it shuts down.
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      08-22-2020, 09:40 PM   #28
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Yet, if I pull up the BMW manual for a 2021 X6 VIN, a search of "auto stop/start" it says that the "feature" is there, so maybe the button has been moved to a menu choice.

A search for "mild hybrid" provide this as part of the narrative:

Mild Hybrid technology

Concept
Part of the Mild Hybrid technology is a battery that works with a voltage of 48 volts. Mild Hybrid technology can lower the fuel consumption.

Mild Hybrid technology influences the following functions.
Auto Start/Stop function.
Engine-Off Coasting.
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      08-22-2020, 09:46 PM   #29
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...and the list of features for the 2021 X5 (2021 X6 not on the web yet) do list Auto Stop/Start for what it's worth.
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      08-23-2020, 12:52 AM   #30
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Quote:
Originally Posted by rdwboulder2 View Post
FWIW I don't select any driving mode, but I always drive in "S" or "M" never in " D". The manual does discuss the Mild-Hybrid having a coasting mode but it only engages with transmission in "D". Something could have shown on the instrument cluster that I just didn't notice.
If you drive in S or M you have switched the gear into sport mode and ASS is switched off.

Auto start stop is an essential part for fuel economy (and comfort) in hybrid functioning. Not having it doesn't make sense in a hybrid. Part of the functionality, like mentioned above is being able the switch of the ICE while slowing down for a traffic light (without hybrid technology it would only switch off at full stop)

The 45e doesn't have a have switch for ASS either. It is impossible to switch of. The button is replaced by a battery control button. But you don't need that in the mild hybrid.

I guess they took away the ability to switch off ASS in the mild hybrids just like in the 45e.

You can overrule it by switching the gear to sport like you did.

Ps. If you only have your car for 2 days shouldn't you wait a bit before driving in sport mode all day?
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      08-23-2020, 02:50 AM   #31
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I normally shut it off during an automatic carwash, since I always thought it would block the wheels.
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      08-23-2020, 05:03 AM   #32
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I test drove this 2021 M50i at Global BMW and the bottom is there for M50i and X5M. Seems to isolate to 40i models.
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      08-23-2020, 06:55 AM   #33
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What we need is someone with the MY21 40i to code auto start-stop to remember the last setting. Then drive it in Sport mode and see if the next time it starts the auto start-stop is off. Obviously when coding the test don't code the default start mode to Sport.
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      08-23-2020, 07:06 AM   #34
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Quote:
Originally Posted by Osheatwo View Post
I test drove this 2021 M50i at Global BMW and the bottom is there for M50i and X5M. Seems to isolate to 40i models.
Those don't have the 48V mild hybrid system like the 40i.
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      08-23-2020, 07:11 AM   #35
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Blank

Understand, just confirming it not impacting the M50 and M model since @Mrjoed asked about those models earlier in the thread.
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      08-23-2020, 09:01 AM   #36
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Quote:
Originally Posted by rdwboulder2 View Post
I picked up a 2021 xdrive40i on Wednesday, and it appears to not have an auto stop/start button. The function also seems to be missing as the car does not turn off at red lights. What am I missing (or actually not missing)? I have attached a picture of where I think it should be.


@ rdwboulder2, may I ask if you have the small battery in the engine compartment for the ASS system ?
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      08-23-2020, 11:23 AM   #37
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A few Mild Hybrid links. I never even knew what this was about, but it will be on my upcoming X6 xDrive build tomorrow.

https://www.bmwblog.com/2020/05/06/h...id-technology/

https://www.bmwblog.com/2020/05/27/48v-bmw-51-models/

xDrive 40i has it and M50i does not, but both have auto stop/start
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      08-23-2020, 12:17 PM   #38
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Quote:
Originally Posted by lair12 View Post
A few Mild Hybrid links. I never even knew what this was about, but it will be on my upcoming X6 xDrive build tomorrow.

https://www.bmwblog.com/2020/05/06/h...id-technology/

https://www.bmwblog.com/2020/05/27/48v-bmw-51-models/

xDrive 40i has it and M50i does not, but both have auto stop/start
They both have auto start stop but I think with the new 40i it can't be turned off anymore and the V8 it can.
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      08-23-2020, 12:58 PM   #39
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While I like it sometimes, I would think that many buyers would scream at removing that option and I don't know why BMW would do so. Thy hypothesis is that there is a shutoff in the menu somewhere. But hey, I've seen a lot of other illogical decisions by BMW.
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      08-23-2020, 01:30 PM   #40
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Emission rules probably.

The 48V system is giving lower emissions. Maybe some new regulations making it impossible to turn the system off?

The start stop should be more fluent now because it can turn the ICE off earlier while braking before complete stop. And it can also give a little electric punch when accelerating.

I don't no if it could run a couple of meters electric in a traffic jam?

And you can always overrule by putting it the gear into sport.
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      08-23-2020, 01:39 PM   #41
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Quote:
Originally Posted by X5 45e View Post
Emission rules probably.

The 48V system is giving lower emissions. Maybe some new regulations making it impossible to turn the system off?

The start stop should be more fluent now because it can turn the ICE off earlier while braking before complete stop. And it can also give a little electric punch when accelerating.

I don't no if it could run a couple of meters electric in a traffic jam?

And you can always overrule by putting it the gear into sport.
Let's hope there is a menu control, because the "solution" of Sport drive mode or Sport shift mode is the opposite of lower emissions and fuel economy as intended.
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      08-23-2020, 01:48 PM   #42
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Quote:
Originally Posted by LexxM3 View Post
Quote:
Originally Posted by X5 45e View Post
Emission rules probably.

The 48V system is giving lower emissions. Maybe some new regulations making it impossible to turn the system off?

The start stop should be more fluent now because it can turn the ICE off earlier while braking before complete stop. And it can also give a little electric punch when accelerating.

I don't no if it could run a couple of meters electric in a traffic jam?

And you can always overrule by putting it the gear into sport.
Let's hope there is a menu control, because the "solution" of Sport drive mode or Sport shift mode is the opposite of lower emissions and fuel economy as intended.
Well that is a discussion. For emissions it would be best not to have a sport mode and not being able to turn the function off. But that wouldn't be fun.

And if it can be switched off temporarily in a menu setting it will still be much easier to switch to sport mode. I know what most people will do.

Maybe OP can confirm if ASS can still be switched off?

I must admit that I my first f11 I didn't like the ASS function. In my G32 it was way better. Turning the engine on when the car in front started to move. More intuitive, not switching on and off again if starting quickly after a first stop.

The 45e is even better in start - stop driving. The ICE stays off.
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      08-23-2020, 02:19 PM   #43
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Quote:
Originally Posted by Osheatwo View Post
I test drove this 2021 M50i at Global BMW and the bottom is there for M50i and X5M. Seems to isolate to 40i models.
Love the CF trim...wish I could have opted for that trim with my 20 M50i
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      08-23-2020, 02:44 PM   #44
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Quote:
Originally Posted by Kief View Post
Quote:
Originally Posted by Osheatwo View Post
I test drove this 2021 M50i at Global BMW and the bottom is there for M50i and X5M. Seems to isolate to 40i models.
Love the CF trim...wish I could have opted for that trim with my ‘20 M50i
Won't help you much I guess but according to the Belgian configurator we can now chose CF for any engine with M pack. Even a 25d.
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