Start stop function question

VR000M5 · 03-04-2015, 10:35 PM

Hi guys

I'm new to this start stop function. I just picked up my 2015 m5. It seems start stop function doesn't seem to work properly. It sometimes kicks in and sometimes it doesnt. I'm not sure what the conditions are.

I thought it kicks in during traffic stops but it doesn't seem to do so.

Nvm. More playing around with the car. Has to be in D1 mode.

MyF15+F85 · 03-05-2015, 06:33 AM

Keeep playing around,
you'll figure it out.
Somehow you were so eager to pick it up, that you declined the sell-persons invitation to explain some of the basic car functions.
Have fun

boots · 03-05-2015, 06:50 AM

Also, if you get tired of playing around with that mode, you can get it coded out so it's off the whole time. I never use it.

ghueser · 03-05-2015, 07:27 AM

Quote:

Originally Posted by Vroom5

Hi guys

I'm new to this start stop function. I just picked up my 2015 m5. It seems start stop function doesn't seem to work properly. It sometimes kicks in and sometimes it doesnt. I'm not sure what the conditions are.

I thought it kicks in during traffic stops but it doesn't seem to do so.

Nvm. More playing around with the car. Has to be in D1 mode.

There are a variety of conditions where stop start will not engage. One example being that the engine has to be at some set temperature.

VR000M5 · 03-05-2015, 10:58 AM

Quote:

Originally Posted by MineF10

Keeep playing around,
you'll figure it out.
Somehow you were so eager to pick it up, that you declined the sell-persons invitation to explain some of the basic car functions.
Have fun

haha pretty much.. well my m3's and m6 didn't have this function. altho i didnt' buy this car to save gas, but its a nice to have i suppose.

the biggest diff coming from the NA is missing the v10 engine

AT LAW · 03-05-2015, 11:15 AM

There are a few settings on the vehicle which disable this annoying function.

On my 550, whenever it is in Sport or Sport+ mode, it is deactivated.

Netwon · 03-28-2015, 03:54 AM

Quote:

Originally Posted by Vroom5

haha pretty much.. well my m3's and m6 didn't have this function. altho i didnt' buy this car to save gas, but its a nice to have i suppose.

the biggest diff coming from the NA is missing the v10 engine

I would avoid this feature for 2 reasons.

1) greatly diminished battery life

2) hot turbos and no oil flow when engine off.

If you search into this subject you will find that current battery tech outside of hybrids just doesn't last with high start/stop cycles.

M6-Coupe · 03-28-2015, 09:22 AM

From user's manual:
The engine is not switched off automatically in
the following situations:
▷ External temperature below approx.
+37 ℉/+3 ℃.
▷ The external temperature is high and automatic
climate control is running.
▷ The passenger compartment has not yet
been heated or cooled to the required level.
▷ The engine is not yet at operating temperature.
▷ The wheels are at a sharp angle or the steering
wheel is being turned.
▷ After driving in reverse.
▷ Fogging of the windows when the automatic
climate control is switched on.
▷ The vehicle battery charge is very low.
▷ The engine compartment lid is unlocked.
▷ Stop-and-go traffic.

M6-Coupe · 03-28-2015, 09:30 AM

Quote:

Originally Posted by Netwon

I would avoid this feature for 2 reasons.

1) greatly diminished battery life

2) hot turbos and no oil flow when engine off.

If you search into this subject you will find that current battery tech outside of hybrids just doesn't last with high start/stop cycles.

Also it put more wear and tear on engine compartment including the starter while does not save gas significantly.. maybe 1-2 mpg at best??
To me this is the worst money I paid for...I don't use it since I found it even dangerous, specially when you are behind the traffic light at uphill. The brake assistance feature holds the car to avoid rolling back about 2 second while with ASS enable it takes about 2 second to start the engine...

Ex_Stig · 03-28-2015, 10:26 AM

Quote:

Originally Posted by boots

Also, if you get tired of playing around with that mode, you can get it coded out so it's off the whole time. I never use it.

2014+ model years remember the last setting. So, once it is off, it stays off next time you get in the car. No need to coding.

steveM5-UK · 03-28-2015, 11:38 AM

Quick question to the UK guys.

Start stop. I was under the impression that the car remembered last set setting, I.e if off, the car would restart in off.

Well not in mine it won't. Am I missing something?

SteveC · 03-28-2015, 11:55 AM

Quote:

Originally Posted by steveM5-UK

Quick question to the UK guys.

Start stop. I was under the impression that the car remembered last set setting, I.e if off, the car would restart in off.

Well not in mine it won't. Am I missing something?

I'm pretty sure mine doesn't remember either. Mine has an indicator light when button is pressed and for sure that never lights up without pressing the button after each start

Wills2 · 03-28-2015, 12:37 PM

UK cars don't remember as far as I know/have experienced.

Dionysus · 03-28-2015, 01:22 PM

Quote:

Originally Posted by steveM5-UK

Quick question to the UK guys.

Start stop. I was under the impression that the car remembered last set setting, I.e if off, the car would restart in off.

Well not in mine it won't. Am I missing something?

Last User Mode is the default setting in some markets, but not UK.

Show your dealership the attached bulletin; I believe I was told that there may a charge for this. I didn't have mine changed.

steveM5-UK · 03-28-2015, 02:03 PM

Has anyone managed to get the dealer to do this?

JOHNBMWM5 · 03-28-2015, 02:26 PM

Quote:

Originally Posted by Netwon

I would avoid this feature for 2 reasons.

1) greatly diminished battery life

2) hot turbos and no oil flow when engine off.

If you search into this subject you will find that current battery tech outside of hybrids just doesn't last with high start/stop cycles.

Sorry rubbish.

1) does NOT diminish Battery's

2) Electric Oil pump on if turbo temps up.

M6-Coupe · 03-28-2015, 02:52 PM

Quote:

Originally Posted by steveM5-UK

Has anyone managed to get the dealer to do this?

US M cars have this code by default (even mine which is 2013), but dealers can do it for other cars (BMW). I had my 2013 650i coded by dealer for free...You should ask your dealer in UK. Worst case scenario they would charge you which should be cheap...

E90Fleet · 03-28-2015, 03:28 PM

Quote:

Originally Posted by JOHNBMWM5

2) Electric Oil pump on if turbo temps up.

Its a 20W electric coolant pump, not oil pump.
The turbos have oil and coolant passages.
The oil pump is mechanical.

Charlie Brown · 03-28-2015, 04:43 PM

I have a 2013 M5 (EU delivery in October 2012) and once I turned this of with the button, it's never come in again.

ozbmwnut · 03-28-2015, 07:30 PM

My aust delivered car didnt remember it either.

I have just had it taken off by my dealer, as they advised they can do it if the customer requests it be removed. i did it, and i am much happier, even though 5 days later i got an invoice in the mail for AU$200 for their work.....

JOHNBMWM5 · 03-29-2015, 05:24 AM

Quote:

Originally Posted by E90Fleet

Its a 20W electric coolant pump, not oil pump.
The turbos have oil and coolant passages.
The oil pump is mechanical.

Thanks I knew it had a pump for such an occasion.

E90Fleet · 03-29-2015, 06:48 AM

Quote:

Originally Posted by ozbmwnut

5 days later i got an invoice in the mail for AU$200 for their work.....

Jup, they are never cheap to do anything.
Best is to ask for it to be activated before the car is delivered, should be free then.

03-04-2015, 10:35 PM	#1
VR000M5 10 Rep 246 Posts Drives: 2015 F10 M5 Join Date: Mar 2007 Location: Canada iTrader: (1)	Start stop function question Hi guys I'm new to this start stop function. I just picked up my 2015 m5. It seems start stop function doesn't seem to work properly. It sometimes kicks in and sometimes it doesnt. I'm not sure what the conditions are. I thought it kicks in during traffic stops but it doesn't seem to do so. Nvm. More playing around with the car. Has to be in D1 mode. Last edited by VR000M5; 03-05-2015 at 12:12 AM..
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03-05-2015, 06:33 AM	#2
MyF15+F85 First Lieutenant 50 Rep 388 Posts Drives: 2015 F85 and 2015 F15 Join Date: Jul 2011 Location: Hamilton ON iTrader: (0)	stop and go Keeep playing around, you'll figure it out. Somehow you were so eager to pick it up, that you declined the sell-persons invitation to explain some of the basic car functions. Have fun
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03-05-2015, 06:50 AM	#3
boots Curve Thrasher 623 Rep 3,773 Posts Drives: 2013 Bmw m5..White/Blk. Join Date: Nov 2012 Location: Cypress Tx iTrader: (0)	Also, if you get tired of playing around with that mode, you can get it coded out so it's off the whole time. I never use it. __________________ 2013 Bmw M5-Alpine White/Black-Oem gloss blk powder coated wheels-Expel clear bra-35% tint-Rpi Gtm Exhaust-Rpi Downpipes-Rpi Scoops-Halim Cazimi Performance Tune-KwV3 coilovers Country run
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03-05-2015, 11:15 AM	#6
AT LAW Private First Class 19 Rep 117 Posts Drives: 2015 BMW 550xDrive M Sport Join Date: Jan 2015 Location: Midwest iTrader: (0)	There are a few settings on the vehicle which disable this annoying function. On my 550, whenever it is in Sport or Sport+ mode, it is deactivated. __________________ 2015 BMW 535i xDrive M Sport, Mediterranean Blue - Ivory / Black Nappa - Absolutely Loaded 2006 Porsche 911, Guards Red / Black
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03-28-2015, 09:22 AM	#8
M6-Coupe Major General 1125 Rep 6,066 Posts Drives: F92 M8 Join Date: Feb 2014 Location: Bay area iTrader: (0)	From user's manual: The engine is not switched off automatically in the following situations: ▷ External temperature below approx. +37 ℉/+3 ℃. ▷ The external temperature is high and automatic climate control is running. ▷ The passenger compartment has not yet been heated or cooled to the required level. ▷ The engine is not yet at operating temperature. ▷ The wheels are at a sharp angle or the steering wheel is being turned. ▷ After driving in reverse. ▷ Fogging of the windows when the automatic climate control is switched on. ▷ The vehicle battery charge is very low. ▷ The engine compartment lid is unlocked. ▷ Stop-and-go traffic. __________________ Current : 2020 F92 Black Sapphire M8 - ZF8 Gone : 2018 F80 Mineral Gray M3 - 6MT Gone : 2016 F82 Austin Yellow M4 - 6MT Gone : 2013 F13 Sakhir Orange M6 -7DCT Gone: 2013 F13 Alpine White 650i -ZF8
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03-28-2015, 11:38 AM	#11
steveM5-UK Private First Class 23 Rep 102 Posts Drives: 2015 M5 Sakhir Orange Join Date: Feb 2015 Location: Lanark, Scotland iTrader: (0)	Quick question to the UK guys. Start stop. I was under the impression that the car remembered last set setting, I.e if off, the car would restart in off. Well not in mine it won't. Am I missing something?
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03-28-2015, 12:37 PM	#13
Wills2 Barge driver 8647 Rep 12,421 Posts Drives: 730d Join Date: Aug 2014 Location: UK iTrader: (0)	UK cars don't remember as far as I know/have experienced.
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03-28-2015, 02:03 PM	#15
steveM5-UK Private First Class 23 Rep 102 Posts Drives: 2015 M5 Sakhir Orange Join Date: Feb 2015 Location: Lanark, Scotland iTrader: (0)	Has anyone managed to get the dealer to do this?
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03-28-2015, 04:43 PM	#19
Charlie Brown Lieutenant 53 Rep 563 Posts Drives: F10 M5 Azurite Black Join Date: Jun 2012 Location: USA iTrader: (1)	I have a 2013 M5 (EU delivery in October 2012) and once I turned this of with the button, it's never come in again.
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03-28-2015, 07:30 PM	#20
ozbmwnut Second Lieutenant 54 Rep 252 Posts Drives: 2016 340i M Sport Join Date: Oct 2014 Location: Melbourne iTrader: (0)	My aust delivered car didnt remember it either. I have just had it taken off by my dealer, as they advised they can do it if the customer requests it be removed. i did it, and i am much happier, even though 5 days later i got an invoice in the mail for AU$200 for their work.....
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