[Motorsport_235i]

Hi guys
I know from the dealer that i got some sort of battery issue...
My question is that in comfort mode the engine will stop when im stopped on a red light which is normal but sometime it wont do it...the car will stay on when fully stopped in comfort
Does ur car does that too?
Im thinking the engine wont go to ready cause they detect the battery being weak or.low or something could that be true?
Does urs always go to ready on all stops?

[aozer]

its normal. the car wont turn off if its not warmed up or if you have your a/c on and the interior temp goes to high. it also wont always turn off if you are stopping very frequently.

[3rdcoast228i]

Also depends on if the auto start/stop button is on or off. (It's the button above the start button)

I leave mine off, if I want that feature I would rather flip to eco pro.

But yeah there are other reasons it won't stop the engine. One being that the battery is low

[B_Rice]

Reasons why start/stop isn't working

The car is coasting (manual transmission)
Brake vacuum reading is too low (manual transmission)
Insufficient brake pedal pressure is being applied to hold the vehicle stationary (automatic transmission)
Stopping on a hill/downhill with a 12% or greater gradient
If the steering angle is more then 6 degrees
If the steering wheel is being moved after approximately one second of coming to a stop
The system has not yet be activated by going over a speed of 5mph for automatics, 3mph for manuals since the last engine switch off
If the gas pedal is being pressed (engine must be at idle speed only)
You're coming to a stop from reverse
The driver gets out of the car
If Hill Decent Control (HDC) is activated
If the engine is not up to temperature
If the carbon canister is being purged
if the grade of the fuel is too low for the engine
Transmission adaptation is active (automatic transmission)
The hydraulic pressure accumulator is not yet up to pressure (automatic transmission)
Stop-and-go traffic - system is only activated by driving over 5mph for automatics, 3mph for manuals
Batter charge is low
Outside temperature is colder then 37.4 F / 3 C
Outside temperature above 95 F / 35 C and the air conditioning system is on
Fogging of the windshield is detected by the IHKA system
Climate control system is on but passenger compartment has not yet reached desired temperature
ABS system was used when coming to a stop

[Motorsport_235i]

Wow thats a long list lol
Its crazy
Wish bmw told us why every stops.lol

[pz619]

Originally Posted by Motorsport_235i

Wow thats a long list lol
Its crazy
Wish bmw told us why every stops.lol

It's all in the manual. Take the time to read it. It'll answer a lot of your questions.