[AC_S5]

Originally Posted by darrko

It sure sounds like a PITA, kinda seems like it kills the edge of a probably great engine. They should at least allow the driver to configure the time interval the car stands still before the feature kicks in. What is with corps like BMW, Apple? They feel they know what the consumer needs better than the consumer. This option would be great for people who want it, but it should be user-controlled and exactly that: an option!

Ok, I don't even have my BMW yet and I'm already ranting. Sorry!

I think the cost of having the option to customize this auto start/stop setting to an individual liking would outweigh the benefit for BMW. Like Apple, BMW sell their product to the mass and at the same time they need to complies with local government's regulations and also keeping the environmental lobbyist happy.

The purpose for this added feature is to save fuel and also complies with EU regulations of cutting emission, by having the button to kill the feature on every start up is already enough on BMW's part to achieve both the cutting down emission and fulfilling EU's regulation.

If you can have an option of totally disable the system, why put it in in the first place

Originally Posted by crmgr

I had to drive a Toyota Prius while my car was in the body shop for a month last year. Hated the start/stop. Always felt like I stalled. I was glad to return it. Rather spring for the extra gas money.

A Prius is a different car, the car itself can get off the line with the electric motor alone while the F10 cannot (unless you have a hybrid version). The auto start/stop will be less annoying on a hybrid then on a conventional car IMO. I rather pay for extra gas which I don't use much here in HK anyways compare with extra maintenance down the road which minds you (before anyone starts flamming me) also produces CO2 in the process

[Joe-BMW]

Originally Posted by Joe-BMW

Are you sure about it being disabled in sport mode? I took delivery only a few months ago, I will have to check it out.

Mine still kills the engine in DS.

[kc1953]

Originally Posted by uda

I find the Auto Start Stop function very good! Saves fuel and the environment. Why should you stand still and put out pollution to the air?
If you feel that you need to start very quickly, for example in a left turn on a heave traffic road, just turn the steering wheel an inch or two, and the engine starts. Or if you have stopped for red light and want to start real quick, put the transmission to SPORT, and the engine starts.

I would say that if the stop/start delay was going to cause a problem with a left hand turn, you MAY be cutting things a bit too close. Just sayin.....

[BigKutta]

Originally Posted by Joe-BMW

Mine still kills the engine in DS.

That violates the rules of operation. if this is true you need to take it to the dealer

[eskdale]

Mine cuts the engine at the first junction I come to. Only 100yds after I set off. I thought it wasn't meant to cut the engine until it was up to temperature, or am I wrong?

[BigKutta]

Originally Posted by eskdale

Mine cuts the engine at the first junction I come to. Only 100yds after I set off. I thought it wasn't meant to cut the engine until it was up to temperature, or am I wrong?

In warm weather, the engine can be within the operating temperature limits for Start/Stop within seconds. Now that it is warmer, my car does the same

[AC_S5]

Originally Posted by BigKutta

In warm weather, the engine can be within the operating temperature limits for Start/Stop within seconds. Now that it is warmer, my car does the same

Originally Posted by eskdale

Mine cuts the engine at the first junction I come to. Only 100yds after I set off. I thought it wasn't meant to cut the engine until it was up to temperature, or am I wrong?

The engine are build to run on start up, any temperature is the operating temperature for the engine. So as long as the battery have enough power, it will kill the engine automatically, so you may be rolling down the street 100 yard and the engine stop when you stop at a red light. The temperature will have it effects ie. in hot weather the intrusion of the start/stop will be less likely as here in Hong Kong, the weather is sub-tropical and the a/c compressor is on full load most of the time during summer days in traffic thus the engine is less likely to kill itself, but on my test drive the engine still kill itself for a while a/c is on and weather is warm (ambient temperature is about 22c)

I think when you guys are talking about the operating temperature in this forum, you mean an optimal temperature where you can rev the engine to the redline

[Joe-BMW]

Originally Posted by BigKutta

That violates the rules of operation. if this is true you need to take it to the dealer

Just want to be clear, when you put your car in Sport mode via the toggle switch, the auto SS is disabled?

[jedpause]

Originally Posted by AC_S5

The engine are build to run on start up, any temperature is the operating temperature for the engine. ...and

I think when you guys are talking about the operating temperature in this forum, you mean an optimal temperature where you can rev the engine to the redline

Good point, since you start the car from cold in the first place...

I think what goes through our mind though is that there would be more wear on a cold engine as the oil etc. is not fully circulated and thinned, and the electrics and "mechanicals" have more work to do.

But all that said, I find mine stop/starts erratically, sometimes 100m from house, sometime 2 miles (after 4 stops)... even now in spring, so can't figure out the actual criteria

[BigKutta]

Originally Posted by Joe-BMW

Just want to be clear, when you put your car in Sport mode via the toggle switch, the auto SS is disabled?

When I put my car in Sport Mode via the button, auto start/stop is NOT disabled.

When I move my gear shift lever to the left and the transmission is in Sport mode (DS), Auto start/stop IS disabled

I think I did not understand you correctly the first time. Hope this is better

[BigKutta]

Its funny how we all are trying to figure the most optimal ways to use or avoid using this feature, but on my daily commute I always see many women driving these cars (because they can) and doing their makeup and chatting on the phone.

I wonder if they have put any thought into this or even know if this feature exists or is even a feature. LOL!

[Grover432]

Originally Posted by darrko

Very well explained, makes things a lot clearer. Thank you for taking the time.

Haven't driven a BMW with it, but was on a road test yesterday in a 2012 Porsche 911 S with the feature. It was actually kind of cool. In traffic it shuts the engine off when at a full stop with your foot on the brake. As soon as you let your foot off the brake pedal the engine starts instantly. I didn't mind it, but in the Porsche, I could see myself defeating it, just so I could always listen to the beautiful sounds coming from the engine compartment. In the BMW, I'd be happy to leave the feature on as long as it, did, in fact save fuel.

[5seriesHB]

Originally Posted by Joe-BMW

Are you sure about it being disabled in sport mode? I took delivery only a few months ago, I will have to check it out.

Disabled in sport mode with shifter to the left.
If u just adjust the sport suspension without moving the shifter to the left it will stay on!
Hope this helps
Rob

[Sharbotcom]

Originally Posted by 5seriesHB

Disabled in sport mode with shifter to the left.
If u just adjust the sport suspension without moving the shifter to the left it will stay on!
Hope this helps
Rob

Rob:

If you configure sport mode to include setting the transmission when toggle the switch does it disable the start/stop then?

[5seriesHB]

Originally Posted by Sharbotcom

Rob:

If you configure sport mode to include setting the transmission when toggle the switch does it disable the start/stop then?

Hmmmmmm
From what I know if u have both the tranny and the suspension in sport
no start/stop
If u have tranny in sport by itself no start/stop
Inly if u have sport suspension by its self will the start/ stop be activated.
Does this help?
Rob

[Sharbotcom]

Originally Posted by 5seriesHB

Hmmmmmm
From what I know if u have both the tranny and the suspension in sport
no start/stop
If u have tranny in sport by itself no start/stop
Inly if u have sport suspension by its self will the start/ stop be activated.
Does this help?
Rob

Yes, thanks.

[Joe-BMW]

Originally Posted by BigKutta

When I put my car in Sport Mode via the button, auto start/stop is NOT disabled.

When I move my gear shift lever to the left and the transmission is in Sport mode (DS), Auto start/stop IS disabled

I think I did not understand you correctly the first time. Hope this is better

Got it. I was just putting it in sport via the toggle switch. I will now get in the habit of putting the shifter to the left. Thanks for the clarification.

[fat dog]

Ignoring any chassis adjustments that are made when putting the toggle switch to Sport (for those that have variable damper control/adaptive drive etc.), is there any difference to how the car peforms over just flicking the transmission lever over to Sport? If you have the toggle switch on Sport and the transmission flicked over to Sport, does everything beceme extra sporty?

[BigKutta]

Originally Posted by fat dog

Ignoring any chassis adjustments that are made when putting the toggle switch to Sport (for those that have variable damper control/adaptive drive etc.), is there any difference to how the car peforms over just flicking the transmission lever over to Sport? If you have the toggle switch on Sport and the transmission flicked over to Sport, does everything beceme extra sporty?

DS (flicking lever to the left) will activate sport programming of the transmission, whereby the transmission shifts at higher rpm among other things

Sport mode (via switch) actually changes the settings of the suspension, steering, and transmission. Sport+ probably tunes these up even more (but I dont have that mode)

[AC_S5]

Originally Posted by BigKutta

DS (flicking lever to the left) will activate sport programming of the transmission, whereby the transmission shifts at higher rpm among other things

Sport mode (via switch) actually changes the settings of the suspension, steering, and transmission. Sport+ probably tunes these up even more (but I dont have that mode)

I also notice that the engine will use more fuel when you are in DS, perhaps more fuel are being injected? The car is more responsive in terms of throttle input whereas in D mode, the gas peddle seems a bit sluggish.

Anyone else notice the same thing?

[5seriesHB]

I call D mode sleep mode.....lol
It's literally like a Prius .
Sport all the way
I had it in sport plus with DSC off completely and spun the tires for a sec
It's cool
My current fx 45 and my ML63 AMG are both 4x4
They launch like nobodies business.....
Eat corvettes all day in the AMG
No tire spin in those trucks....!

[BigKutta]

Originally Posted by AC_S5

I also notice that the engine will use more fuel when you are in DS, perhaps more fuel are being injected? The car is more responsive in terms of throttle input whereas in D mode, the gas peddle seems a bit sluggish.

Anyone else notice the same thing?

Yes, because the shift points are higher for gear changes. However, I have not felt any change in the peddle feel itself. I like D mode also, however, I am almost always in DS mode because I like the shifts to take place >3000 rpm, and it also turns off the Auto Start/Stop when I am in stop-and-go traffic.