[MohdBA]

So i came home at 4:30PM i parked my car then the auto start-stop went to OFF position. I thought that i switched off the ignition and left the car. I came back 15 hours later to discover that the car is running. What are the possible damages that could occur from this situation and how come this happened?
The car is my 316i 2012 model.

[Gibson6594]

Originally Posted by MohdBA

So i came home at 4:30PM i parked my car then the auto start-stop went to OFF position. I thought that i switched off the ignition and left the car. I came back 15 hours later to discover that the car is running. What are the possible damages that could occur from this situation and how come this happened?
The car is my 316i 2012 model.

The car should have warned you that the ignition was still on when you opened the door.

[MohdBA]

Originally Posted by Gibson6594

The car should have warned you that the ignition was still on when you opened the door.

I guess this did not happen as I moved the gear to the P position

[alz0rz]

Other damage is breathing in toxic exhaust gases in a confined space by having it travel up through the walls of your home if your car was parked inside.

[jeff@autocouture]

when you try to lock the car, it should beep,

[MohdBA]

Originally Posted by alz0rz

Other damage is breathing in toxic exhaust gases in a confined space by having it travel up through the walls of your home if your car was parked inside.

It was parked underground in a large area.

[MohdBA]

Originally Posted by Alex@AUTOcouture

when you try to lock the car, it should beep,

It shockingly locked without the beep... I have tried this when i came next morning and found the car locked with the engine running

[u5g335]

It should not restart after you open the door if ass was active. It will go from ready to off when the door is opened and not restart on its own. The only way this could have happened is if you pressed start/stop which restarted the engine then got out with engine running, locked it, and walked away. That is possible and I do it sometimes in the winter to let the car warm up locked when temps are way below zero since bmw doesn’t trust us with remote start. Being able to lock it while running also keeps your car from getting jacked which sadly is such a common occurrence that some insurance companies now have an extra coverage exemption clause saying they will not cover car if stolen with keys inside.

[MikeATL]

Were you sober when you parked it?

If so, that's some scary stuff. Have fortunately never had that happen. My experience is what the post above describes. I have made the mistake of trying to reverse with the door open (yes sober) and that didn't end well, but different topic.

[MohdBA]

Originally Posted by u5g335

It should not restart after you open the door if ass was active. It will go from ready to off when the door is opened and not restart on its own. The only way this could have happened is if you pressed start/stop which restarted the engine then got out with engine running, locked it, and walked away. That is possible and I do it sometimes in the winter to let the car warm up locked when temps are way below zero since bmw doesn’t trust us with remote start. Being able to lock it while running also keeps your car from getting jacked which sadly is such a common occurrence that some insurance companies now have an extra coverage exemption clause saying they will not cover car if stolen with keys inside.

I talked to my friend and he told me that something similar happened to his father with his 2016 X6. He went to Starbucks and upon parking the car, the engine switched to OFF with ASS activated, thinking that he switched off the car, he went inside and sat for 3 hours coming back to find the engine running.

[kadify]

The thing is, it shouldn't be going to OFF it should be going to READY, at least in the 3/4 series it should. I'm not sure on other models, but the 3 series definitely has a READY position to signify the car isn't completely off yet. If it is in READY that means the engine is just off due to ASS being activated however after a bit it will turn back on. Usually if it is in READY, when you open the door the car will beep and tell you that the ignition is still on though...

[Nebelhinten]

Usually have it switched off, but forgot other day and when I parked in garage engine stopped due to ASS. Ignition was still on so I hit button once to turn completely off. I must have still had my foot on brake as car did not restart before I turned off ignition.

[d1saster]

When you depress the brake pedal the engine should restart. I turned ASS off and coded the car to completely shut down with one press of start button. Doors also get unlocked and gear lever return to park. All automatic.

[Billfitz]

Once placed in park the engine should not restart. It should only do so while in drive, and then only when you take the foot off the brake. So in theory if it was an ASS issue the car would start and roll away before you even got out of the car. Since you came back to it to find it in park you must not have shut it off to begin with.

I only put my car in park when I want to leave the engine running and not have it drive away by itself. When I want the engine to stop I use the ignition switch and let the car put itself into park.

[JamRWS6]

If it was truly ASS and it had moved to ready, when you lock the car it will shut everything down.

[pz619]

Originally Posted by JamRWS6

If it was truly ASS and it had moved to ready, when you lock the car it will shut everything down.

I believe this is only happens on newer versions. My previous F30 would fire back up after a while. Happened to me twice that I can recall where I found my car running. My newer F22 would go from ready to off.

OP - I got in the habit of shutting down all the electronics when I exit the car. I used to just kill the motor (or so I thought) then lock the car knowing when the car locks it puts the electronics in sleep mode. Now I just kill the electronics when I'm still in the car by pressing start/stop twice. It eliminates any possibility of the car starting back up if you aren't paying attention. As for damages likely none. I had no issues afterwards.

[Outlaw 06]

I can’t decide which is the more inane standard feature in a so-called performance car; the auto start stop function or the default “comfort mode” function. Both of these features are dangerous detriments to driving (for those drivers who demand instantaneous throttle response) and they should never have been allowed to make it out of the Toyota Prius. I find it hard to believe that people who buy/lease BMWs these days actually want these inane standard features in their cars.

[401FlaGATOR]

There are class action lawsuits ongoing due to the danger of carbon monoxide poisoning brought on by these new systems such as ASS. Along a similar vein is the recent death of Anton Yelchin due to the new ZF shifter. I had a similar experience recently I moved my car out of my driveway to the guest parking area because my grass was getting cut, when I left to work 3 hours later I came upon the car still running. After decades of using standard keyed systems I have been conditioned to expect the car to be off if the key is in my possession as I walk away from the car. The old clunky shifters and keyed systems were low tech but apparently more simple, predictable, and ultimately safer.


Another case in point: Tesla Autopilot software.

I guess it's a good thing my garage is so full of crap I can't use it to park cars, could be a fatal practice.

[philipm785]

I've specifically tried this on my 2012 335. Even getting out of the car to get the mail will cause the engine to lock out restart until I specifically push the button. I don't even need to lock the door. Once I open the door and exit the vehicle, it will not automatically restart on mine. When I get back in, the dash shows that ASS was disabled and will not restart. Perhaps the behavior you observed is a fault? Also wonder if it's handled differently on cars with Comfort Access (which mine does have)?

[TypeOne]

I turned the auto-stop-start off the day I purchased my car and have never turned it back on. I don't like it.

[Michael Schott]

Originally Posted by 401FlaGATOR

There are class action lawsuits ongoing due to the danger of carbon monoxide poisoning brought on by these new systems such as ASS. Along a similar vein is the recent death of Anton Yelchin due to the new ZF shifter. I had a similar experience recently I moved my car out of my driveway to the guest parking area because my grass was getting cut, when I left to work 3 hours later I came upon the car still running. After decades of using standard keyed systems I have been conditioned to expect the car to be off if the key is in my possession as I walk away from the car. The old clunky shifters and keyed systems were low tech but apparently more simple, predictable, and ultimately safer.


Another case in point: Tesla Autopilot software.

I guess it's a good thing my garage is so full of crap I can't use it to park cars, could be a fatal practice.

Law suits in these cases are for families who can't admit their late family members were not the brightest bulbs. Times change and so do cars. Owners need to learn how their cars work.

[goj]

User error mate.