Greetings!
Can it be that, since the temperatures are around the 10 degrees Celsius, my automatic Stop-Start system always shows the blinking green icon, which then disappears and the engine just stays on?
Is there a certain temperature threshold when this is the case?
If not, what could be the reason this system is not working anymore since about two weeks?
Thanks!
As a general answer, cold temp could certainly be a reason for the car not to allow start/stop.
I would think 10 C isn’t really cold enough though, but there can be other reasons as well.
Mines has never worked, I think it may be disabled prior to the purchase and forgot to get it looked at
I would say, combine the colder days and if other features on the car are being used it’s very possible that your stop/start has temporally stopped working.
Mine works all the time but I haven’t driven the car for over a week , I’ll update over the next few days.
I’m expecting it to be less active as its got a bit colder here plus the car hasn’t been driven for a little while.
Stop/start can be a bit erratic when other factors kick in…
My last car, a Volvo it was a right pain, it could go a couple of months without working, then all of a sudden it would work on every journey .
Mine works too all the time, but we have E-tense models.
I think Ronald has the pure petrol version. I’d assume it works differently.
Yes, mine is petrol.
So, reading all the comments, it looks like MAYBE the colder weather is a factor, but also maybe not.
I will put this point to the list when I bring my car to the garage beginning of January.
I just bought it about 2 months ago. It’s 5 years old and has done 100k km.
So far I have:
Don’t get me wrong, I love my car and it drives fantastic. But for 25.000 euro I want these things sorted out.
Sorry, didnt realise. 
My previous Volvo was petrol, the S/S was a pain in the rear .
Yeah, my previous car was a petrol Merc and I always shut off the S/S at start, and then engage it when I felt I’d stand still for a while. Otherwise it always engaged to quickly and at the wrong places and the battery would sink below the required level and disabled S/S and it wasn’t there when I needed it.
I actually find it hard to tell when my DS stops and starts the engine, I can only tell by looking at the rev counter as it drops to zero, its that quiet .
I agree fully. I use the color of the speedo to determine if the engine is running or not. 
Sometimes when standing still, you can feel tiny vibrations from the engine, but when driving it’s almost impossible.
Hi, I have ds7 and the stop start stopped working a few weeks before battery gave up,I also had a crv and it was exactly the same and when a new battery was fitted the stop start worked perfectly on both. It’s probably the electronics sensing battery voltage is dropping and disables stop star.
It only takes a tiny drop in battery condition and the first thing to play up is the S/S.
As soon as started cold weather last and this year mine start-stop stopped working. It just flashes green symbol 3 times and engine stays on. As per manual there should be orange symbol continuously blinking then there is faulty system.
It turned out it was the battery. Changed it and now it works fine again.
Mine was produced in June 2022. Could it be the battery already? 
I’ve been told by the Stellantis technician who is trying to sort out some issues with my DS4 that battery monitoring system on the newer DS models is very sensitive and technical and sometimes the system will hibernate certain features such as stop/start as it recognises a tiny drop in battery voltage , this doesn’t mean that you have a faulty battery, it’s more likely to be the car being too sensitive to voltage drop, especially this time of the year.
Apparently the system is designed to protect the batteries before anything else, but as it’s so sensitive it’s causing certain features to shut down, hence my car being checked over by the technician from Stellantis, my own dealerships technicians are having problems finding the fault, but the Stellantis tech guy thinks it’s something to do with the battery monitoring system.
Before buying a new battery I would have the car checked .
Oh, that’s a thing! It all started with last days of November, when temperatures are gone below 10 C. So it make sense @Jactac
If you have a multi tester try testing the battery after you parked up and everything switched off.
Its really simple to do .
A multi tester is just a couple of pounds.
Park the car, leave for about half hour to an hour, open bonnet , set your tester to 12v, and check the battery voltage, put positive probe onto the positive side of the battery and negative onto the body earth bolt , a good battery holding its charge should be around 12.7v and higher, mine varies between 12.3v and sometimes 12.48v, I’ve never see it more than 12.48v.
The car is a late 2023 model , but I bought it September 2024, so its been standing in storage somewhere for many months, I think this is the issue with my battery.
With the car running I can see 14.8v going into the battery from the alternator, so I know its getting it’s charge, but with everything switched off I’m only seeing 12.48v max, and thats not every time, so I think that might be my issue ?
It dont sound much, but the difference between seeing 12.7v on a battery being decent holding capacity and a battery with a 12.4v holding capacity like I’m seeing is a lot.
Apparently the DS system is so sensitive its enough to switch off some features, at least thats what I’m being told by my dealership.
They cant decide if it needs a new battery or it might be the cars monitoring is too sensitive .
Personally I think my main battery is shot !!
We are waiting for feedback from the Stellantis Tech guy.
If you Google 12v battery conditions, you’ll see that a it’s hardly anything between a battery thats has a good holding charge and one thats basically used up faulty.
A battery that has around 12.2v is only 50% charged !
I will check my battery tomorrow as per your instructions and come back with results, thank you for the advice!