Stop/Start system not working - Page 3

Friendly · Apr 10th, 2021, 16:23

My wife has a Mini with stop/start. A couple of winters ago I noticed it wasn’t working. When it went in for a service they checked it and said it was because the battery did not have enough charge.

They charged it overnight and it worked only for the next few days. The car is mainly used for short journeys.

I then told them to fix it under warranty and they refused saying that a new battery was needed due to incorrect usage! Following a complaint to the service manager they gave me a good will contribution but I still had to put about £20 towards it.

Since then I put it on a smart charger about once a month and it has always worked.

To the OP - your battery probably needs replacement. If you do get it replaced I would recommend charging every so often.

XC90Mk1 · Apr 10th, 2021, 16:48

No it’s not right and should be fixed under Warrenty (unless the battery is failing).

Only comment I would have (I do check on my 2012 battery etc) is that my xc is on its original battery 9 years later but for at least the last three years the battery does not maintain peak charge and I do get errors flash up on it at start which I believe to be due to the low battery voltage. Especially given that this rarely but periodically happens at winter but not summer.

I would not be concerned as stop start will literally save you a few pence on long journeys but will put more wear and tear on the engine.

Zebster · Apr 11th, 2021, 09:45

Quote:

Originally Posted by ThomasC91

I personally use an additive because it’s cos5 effect against using premium fuel.... I beli3ve adding additive is the equivalent and yet a lot cheaper.

It supposedl6 improves mpg too.

I just use whatever fuel is cheapest. Doesn't seem to affect the DPF.

crashbarrier · Apr 14th, 2021, 15:51

And, as if by magic, the Stop/Start is working again. The car hasn't been driven any more than it has been previously.
I give up!

KNVXC90 · Apr 27th, 2021, 15:24

Quote:

Originally Posted by KNVXC90

My Stop/Start used to work flawlessly. but the car usage has drasticaly gone down since the beginning of pandemic. I am just beginning to drive a bit more and the Stop/Start is no longer working.

I did drive 2.5 hours to Birmingham and another 2.5 hours back to Chelmsford, but that still didn't help.

Pleased to say, the Stop/Start started working again, after a further 160 mile round trip

I dind't think it'll come back to life and thought the battery needed changing.

EssexExile · Apr 27th, 2021, 16:19

We went away last week, after about 100 miles it started working. Then it stopped again!

shagaboopon · Apr 27th, 2021, 18:00

I had the car for a month having never had stop start work. Went for a 2 hour drive to the coast and on the return journey it started working. I think its just poor battery condition that causes most issues.

Apr 14th, 2021, 15:51	#24
crashbarrier Member Last Online: Apr 11th, 2024 09:43 Join Date: Jan 2019 Location: Horsham, West Sussex	And, as if by magic, the Stop/Start is working again. The car hasn't been driven any more than it has been previously. I give up! __________________ V90 CC Pro D4 MY19 Electric Silver (lots of extras courtesy of Volvo UK)

Apr 27th, 2021, 16:19	#26
EssexExile Master Member Last Online: Today 14:07 Join Date: Oct 2019 Location: Cannock	We went away last week, after about 100 miles it started working. Then it stopped again! __________________ Red XC60 Momentum T5, 2019

Apr 10th, 2021, 16:23	#21
Friendly Junior Member Last Online: Oct 20th, 2023 19:46 Join Date: Jul 2017 Location: Halifax	My wife has a Mini with stop/start. A couple of winters ago I noticed it wasn’t working. When it went in for a service they checked it and said it was because the battery did not have enough charge. They charged it overnight and it worked only for the next few days. The car is mainly used for short journeys. I then told them to fix it under warranty and they refused saying that a new battery was needed due to incorrect usage! Following a complaint to the service manager they gave me a good will contribution but I still had to put about £20 towards it. Since then I put it on a smart charger about once a month and it has always worked. To the OP - your battery probably needs replacement. If you do get it replaced I would recommend charging every so often.

Apr 10th, 2021, 16:48	#22
XC90Mk1 Premier Member Last Online: Feb 16th, 2024 13:43 Join Date: May 2018 Location: Na	No it’s not right and should be fixed under Warrenty (unless the battery is failing). Only comment I would have (I do check on my 2012 battery etc) is that my xc is on its original battery 9 years later but for at least the last three years the battery does not maintain peak charge and I do get errors flash up on it at start which I believe to be due to the low battery voltage. Especially given that this rarely but periodically happens at winter but not summer. I would not be concerned as stop start will literally save you a few pence on long journeys but will put more wear and tear on the engine.

Apr 27th, 2021, 18:00	#27
shagaboopon New Member Last Online: Jan 30th, 2024 15:09 Join Date: Apr 2011 Location: York	I had the car for a month having never had stop start work. Went for a 2 hour drive to the coast and on the return journey it started working. I think its just poor battery condition that causes most issues.

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