Author Topic: Start/stop not working in winter  (Read 1485 times)

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Start/stop not working in winter
« January 06, 2018, 13:43:30 »
Hi all
I noticed a small problem. The ISG system shows me a "wrong conditions" and refuses to shut down the car in winter. It works perfectly in the other seasons.
I don't think the temperature is the real issue, because for one trip this year it worked (there were about 2C, and the engine temperature the first time it turned off during tha "magic" trip was around 60 since the engine was still warming), while for temperatures above and below during other trips the ISG didn't work.
Do you know what are the conditions to let the car turn down when halting? AFAIK there are
- seat belt on -> checked
- driver and back door closed -> checked
- brake pressed -> checked
- battery charged -> I hope so (no other problems, and moreover being a 1-year car I think the battery is still ok)
- external temperature between -2 and 35C -> checked (usually the temperature is above 0C)
- motor temperature not too low -> checked (usually >85C


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Re: Start/stop not working in winter
« Reply #1 : January 06, 2018, 14:43:24 »
Hi fra87,

We don't even get the function offered on any i30 model in Australia.  You are quite fortunate that yours works at all. The forum is littered with negative feedback from European members, particularly in the UK that want to know why theirs seldom if ever operates. We have come to these three conclusions on here.

(a) There are an awful lot of conditions which can stop the function from operating.
(b) Hyundai are a long way from perfecting their version.
(c) Don't stress as it saves very little if any fuel.
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Re: Start/stop not working in winter
« Reply #2 : January 07, 2018, 14:34:37 »
First thing i do when i get in mine is turn ISG off. PITA!
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Re: Start/stop not working in winter
« Reply #3 : January 07, 2018, 14:36:08 »
:whsaid:
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Re: Start/stop not working in winter
« Reply #4 : January 07, 2018, 16:57:12 »
I would be happy indeed if I had this 'feature' in a car and it didn't work...rubbish idea!

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Re: Start/stop not working in winter
« Reply #5 : January 07, 2018, 23:37:46 »
I'm still a fan of stop start in hybrids where it usually works seamlessly. :cool:

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Re: Start/stop not working in winter
« Reply #6 : January 08, 2018, 03:11:40 »
Quote from: Dazzler
I'm still a fan of stop start in hybrids...

It has to work in hybrids as I find the engine mostly already off when I come to a stop (due to the petrol engine having been cut during the regenerative braking period).

I hated it in my GD so I soon got in the habit of switching it off prior to cranking the engine.
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Re: Start/stop not working in winter
« Reply #7 : January 08, 2018, 04:39:32 »
My impression, too, from having driven them in the UK. Hybrids are already stop/start practically by definition, but for a conventional vehicle I think it has more to do with scoring consumption and emission points than looking after the engine in the long term.
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Re: Start/stop not working in winter
« Reply #8 : January 08, 2018, 13:26:54 »
I don't have ISG in my old 2008 i30 but a friend of mine have a 2016 Renault Kadjar diesel and boy does that ISG work well.!

Maybe the Renault is just much better to keep the battery in good shape, but that engine shuts down as soon as the engine is near operating temperature. If we have been at a stop for too long the engine just starts again. Here sure is a point where Hyundai needs to improve, compared to all those stories we have heard here about the ISG not working under any circumstances.

The ISG in my wife's i10 almost never works as well...  :undecided:
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