New Start Stop function

RickC · 10-29-2010, 09:38 AM

I was wondering about the new start stop function that turns off the motor at lights and other stops.

Can it be turned off or defeated in some other way?

Will the mileage savings be defeated by the increased cost of battery and starting motor replacements?

Do I really want a cold engine to be continuously turned off and on?

Does the feature add the the car cost?

Is it possible for it to fail in the off mode and leave me stranded?

It seems to me this is an answer to a question no one asked? The car gets more and more complicated. I just want to drive it and enjoy it. I do not want it braking for me or turning the engine on and off.

ChasVS · 10-29-2010, 09:55 AM

Gee, You think maybe they have considered these issues and taken steps to address them?

Potty_Pants · 10-29-2010, 10:01 AM

[B]

Quote:

Originally Posted by RickC

I was wondering about the new start stop function that turns off the motor at lights and other stops.

Can it be turned off or defeated in some other way?

Will the mileage savings be defeated by the increased cost of battery and starting motor replacements?

Do I really want a cold engine to be continuously turned off and on?

Does the feature add the the car cost?

Is it possible for it to fail in the off mode and leave me stranded?

It seems to me this is an answer to a question no one asked? The car gets more and more complicated. I just want to drive it and enjoy it. I do not want it braking for me or turning the engine on and off.

I agree with the above questions and had the same when this technology was mentioned years ago.

Quote:

Originally Posted by ChasVS

Gee, You think maybe they have considered these issues and taken steps to address them?

yeah im sure bmw considered them and did "some testing"... just like the HPFP...
dont assume they have a flawless product.

ppp

335BBS · 10-29-2010, 10:05 AM

Quote:

Originally Posted by Potty_Pants

[B]

I agree with the above questions and had the same when this technology was mentioned years ago.

yeah im sure bmw considered them and did "some testing"... just like the HPFP...
dont assume they have a flawless product.

ppp

youre paranoid. These systems have been around for years. Do you really think they built bad HPFP on purpose? is ANYBODY positive on this site ANYWHERE?!?!?

RickC · 10-29-2010, 10:43 AM

"Gee, You think maybe they have considered these issues and taken steps to address them?"

Einstein on Simplicity
“Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage — to move in the opposite direction.”

As an engineer myself I believe simple is good and that things can become overly complex and over engineered. I like my 335 and Z4. The Z4 is simple and provides a better driving experience overall. I believe that the start stop function is a bit of over engineering similar to the "hill holder" brake function on my automatic 335xi.

zaheer · 10-29-2010, 10:56 AM

the start stop feature is only on 4 cylinder models...i dont know how that will affect you guys in the first place...

F104 · 10-29-2010, 11:20 AM

Quote:

Originally Posted by RickC

I was wondering about the new start stop function that turns off the motor at lights and other stops. Can it be turned off or defeated in some other way?

You have a switch to override until the next key off. You learn when to use that real quick. And it looks like it doesn't kick in when certain fault are active ( seat belt for example but let's not go there

)

Quote:

Will the mileage savings be defeated by the increased cost of battery and starting motor replacements?

An automated hot start is dead easy on the engine / starter / battery

Quote:

Do I really want a cold engine to be continuously turned off and on?

it doesn't do it when the engine is cold

Quote:

Does the feature add the the car cost?.

no, utilizing existing parts and some software, but you'll pay for it anyway

Quote:

Is it possible for it to fail in the off mode and leave me stranded?.

anything is possible

Quote:

It seems to me this is an answer to a question no one asked?

It's there to pass the emission cycle test. No one asked for EGR, DPF's etc either

Tom K. · 10-29-2010, 11:26 AM

To the OP: Which BMW models sold in the US have this feature?

Tom

10-29-2010, 09:38 AM	#1
RickC Private 5 Rep 74 Posts Drives: 335xi Coupe and Z4 Join Date: Apr 2010 Location: Upstate NY USA iTrader: (0)	New Start Stop function I was wondering about the new start stop function that turns off the motor at lights and other stops. Can it be turned off or defeated in some other way? Will the mileage savings be defeated by the increased cost of battery and starting motor replacements? Do I really want a cold engine to be continuously turned off and on? Does the feature add the the car cost? Is it possible for it to fail in the off mode and leave me stranded? It seems to me this is an answer to a question no one asked? The car gets more and more complicated. I just want to drive it and enjoy it. I do not want it braking for me or turning the engine on and off.
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10-29-2010, 09:55 AM	#2
ChasVS Colonel 40 Rep 2,431 Posts Drives: 2012 MB ML350 Bluetec Join Date: Aug 2009 Location: Central FL iTrader: (10)	Gee, You think maybe they have considered these issues and taken steps to address them?
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10-29-2010, 10:43 AM	#5
RickC Private 5 Rep 74 Posts Drives: 335xi Coupe and Z4 Join Date: Apr 2010 Location: Upstate NY USA iTrader: (0)	"Gee, You think maybe they have considered these issues and taken steps to address them?" Einstein on Simplicity “Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius — and a lot of courage — to move in the opposite direction.” As an engineer myself I believe simple is good and that things can become overly complex and over engineered. I like my 335 and Z4. The Z4 is simple and provides a better driving experience overall. I believe that the start stop function is a bit of over engineering similar to the "hill holder" brake function on my automatic 335xi.
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10-29-2010, 10:56 AM	#6
zaheer Captain 83 Rep 861 Posts Drives: E93 335i Join Date: Nov 2009 Location: London, UK iTrader: (1)	the start stop feature is only on 4 cylinder models...i dont know how that will affect you guys in the first place... __________________
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10-29-2010, 11:26 AM	#8
Tom K. Major General 124 Rep 5,627 Posts Drives: '07 328iT, '13 Boxster Join Date: Mar 2008 Location: Maryland iTrader: (0)	To the OP: Which BMW models sold in the US have this feature? Tom
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