Start/stop function - Page 2

Wispyone · Mar 28th, 2020, 17:36

I came the long way home from work today, including around 10 miles on the motorway at a steady 70mph. A total of around 23 miles, and it's still not reset the start/stop. I would have preferred to keep driving but not possible with the lock down etc.
I hope to get out soon and give it a good run to the coast but alas that will have to wait.

Also the only charger I have is motorbike specific so no good for the car

Cheers

Richard

nu11eaf · Mar 28th, 2020, 17:59

Quote:

Originally Posted by Wispyone

I came the long way home from work today, including around 10 miles on the motorway at a steady 70mph. A total of around 23 miles, and it's still not reset the start/stop. I would have preferred to keep driving but not possible with the lock down etc.
I hope to get out soon and give it a good run to the coast but alas that will have to wait.

Also the only charger I have is motorbike specific so no good for the car

Cheers

Richard

Mmmm 10 miles on the motorway should have completed a regeneration process, I think this is now looking like a battery or other problem.

Wispyone · Mar 28th, 2020, 18:16

Quote:

Originally Posted by nu11eaf

Mmmm 10 miles on the motorway should have completed a regeneration process, I think this is now looking like a battery or other problem.

Hope it's not a problem ........... I have only had it 2 weeks.

I will probably come home the long way again tomorrow and give it another run

Driver Dave · Mar 28th, 2020, 18:18

Both my batteries have been replaced more than once, the problem is still there. Volvo have been involved but still no answer as to why this is such an intermittent system.

Wizzpop · Mar 28th, 2020, 20:12

Quote:

Originally Posted by Driver Dave

Both my batteries have been replaced more than once, the problem is still there. Volvo have been involved but still no answer as to why this is such an intermittent system.

Cos the specified battery is only just adequate.

HowOld · Apr 1st, 2020, 22:56

Quote:

Originally Posted by Wispyone

Hope it's not a problem ........... I have only had it 2 weeks.

I will probably come home the long way again tomorrow and give it another run

I had a new battery fitted today and the start/stop function has now started to tell me the battery temperature is too low. Before it was saying the battery was low and would not work.
I have decided to leave it until this current situation is resolved and normal motoring is restored. I hope its worth it.

Wispyone · Apr 1st, 2020, 23:23

Quote:

Originally Posted by HowOld

I had a new battery fitted today and the start/stop function has now started to tell me the battery temperature is too low. Before it was saying the battery was low and would not work.
I have decided to leave it until this current situation is resolved and normal motoring is restored. I hope its worth it.

I'm going to wait until I can take the car for a good long run and see if it kicks in again.
I suppose in the grand scheme of things having a start/stop that's not working isn't the end of the world. But it is damn annoying, I had it on my last car, V40, and loved it. If it's fitted, it should work.

Whiterdesign · Apr 2nd, 2020, 21:37

Thought I would post this here, as there is a connection re battery charging. Due to the Virus I have laid my car up for a while and we are using the wife’s car as she has been layed off work. To keep the battery charged up I have purchased a Ctek mxs 5.0 charger to leave the car on charge. The charger has a load of modes, one being charge a car with AGM battery which I chose. This goes through a load of stages and finish on stage 7 for 10 days and then stage 8 to trickle. Left in on for 24 hrs and it went to stage 6 and stuck there. Stage 6 should not be used as it’s for the reconditioning of non AGM batteries. Reset a few times and ended up with the same problem . Trolled the internet and basically found that there seems to be 2 types of AGM battery. In fact in the Ctek instructions the car symbol say it will charge some AGM batteries . Found on another forum that someone has spoke to Ctek and they say that if you are not sure which type of AGM battery you have use car symbol only as this charges at a lower voltage than.the AGM mode. Tried charging as a normal battery and it’s now at stage 7 , no problem. Don’t know if any one has used a Ctek and had this problem but I thought it was worth mentioning.

Boatie · Apr 2nd, 2020, 22:29

I got my pre registered MY 19 V90 R design at the beginning of March with 24 miles on the clock. It's obviously been standing around for a number of months. Notwithstanding doing 700 miles (mostly motorway) in the first 3 weeks start/stop only worked a few times. It's obviously the battery and I was preparing to do battle with Volvo when 'lockdown' happened and it's not moved since. Lead acid batteries don't like standing around for months without being kept absolutely fully charged. (AGM batteries as fitted to cars are simply lead acid with the electrolyte held in glass matting rather than as a liquid and not magical as some think).
Just scrolled up and read Whiterdesigns comments. One difference between flooded cell (liquid electrolyte) and AGM batteries is the voltage at which they should be held when 'in float' (think long term storage). AGMs are held at a slightly higher voltage, about .5 v higher. Brose the internet and you'll find masses of sometimes conflicting information. The bit Whiterdesign mentions about 2 types of AGM is the internal design of the batteries. A top, top quality AGM of the size fitted to our cars would cost between £400 and £500.

Lexman8 · Apr 4th, 2020, 09:21

I used my Ctek 5.0 in AGM mode the other day to charge the battery. Went though all 7 stages, same as it always does.

Mar 28th, 2020, 17:36	#11
Wispyone Junior Member Last Online: Nov 18th, 2021 20:42 Join Date: Feb 2020 Location: Leeds	I came the long way home from work today, including around 10 miles on the motorway at a steady 70mph. A total of around 23 miles, and it's still not reset the start/stop. I would have preferred to keep driving but not possible with the lock down etc. I hope to get out soon and give it a good run to the coast but alas that will have to wait. Also the only charger I have is motorbike specific so no good for the car Cheers Richard __________________ 2017 V90 Inscription D4, Electric silver premium metalic, Panoramic Tilt/slide sunroof, 360 surround view, park assist pilot, BLIS, winter pack, family pack, dark tinted windows & CD player

Mar 28th, 2020, 18:18	#14
Driver Dave Member Last Online: Oct 7th, 2022 15:19 Join Date: Jul 2015 Location: Northern Scottish Highlands	Both my batteries have been replaced more than once, the problem is still there. Volvo have been involved but still no answer as to why this is such an intermittent system. __________________ MY17 XC90 D5 Power-pulse Inscription, 5 Double Spoke alloys, Luminous Sand, Amber Leather, Linear Walnut Inlays, Winter Pack, Xenium Pack, BLIS, Dark Tinted Windows, Towbar, Mud flaps, PoleStar

Apr 2nd, 2020, 21:37	#18
Whiterdesign Master Member Last Online: Mar 11th, 2024 20:23 Join Date: Feb 2012 Location: Preston	Thought I would post this here, as there is a connection re battery charging. Due to the Virus I have laid my car up for a while and we are using the wife’s car as she has been layed off work. To keep the battery charged up I have purchased a Ctek mxs 5.0 charger to leave the car on charge. The charger has a load of modes, one being charge a car with AGM battery which I chose. This goes through a load of stages and finish on stage 7 for 10 days and then stage 8 to trickle. Left in on for 24 hrs and it went to stage 6 and stuck there. Stage 6 should not be used as it’s for the reconditioning of non AGM batteries. Reset a few times and ended up with the same problem . Trolled the internet and basically found that there seems to be 2 types of AGM battery. In fact in the Ctek instructions the car symbol say it will charge some AGM batteries . Found on another forum that someone has spoke to Ctek and they say that if you are not sure which type of AGM battery you have use car symbol only as this charges at a lower voltage than.the AGM mode. Tried charging as a normal battery and it’s now at stage 7 , no problem. Don’t know if any one has used a Ctek and had this problem but I thought it was worth mentioning. __________________ XC60 MY 2018.5 D4 Inscription Pro Pine Grey with Xenium pack,Intellisafe pro, keyless drive, Apple CarPlay, temp spare wheel, heated rear seats, towbar and tinted windows

Apr 2nd, 2020, 22:29	#19
Boatie Master Member Last Online: Apr 23rd, 2024 11:39 Join Date: Oct 2013 Location: Watford	I got my pre registered MY 19 V90 R design at the beginning of March with 24 miles on the clock. It's obviously been standing around for a number of months. Notwithstanding doing 700 miles (mostly motorway) in the first 3 weeks start/stop only worked a few times. It's obviously the battery and I was preparing to do battle with Volvo when 'lockdown' happened and it's not moved since. Lead acid batteries don't like standing around for months without being kept absolutely fully charged. (AGM batteries as fitted to cars are simply lead acid with the electrolyte held in glass matting rather than as a liquid and not magical as some think). Just scrolled up and read Whiterdesigns comments. One difference between flooded cell (liquid electrolyte) and AGM batteries is the voltage at which they should be held when 'in float' (think long term storage). AGMs are held at a slightly higher voltage, about .5 v higher. Brose the internet and you'll find masses of sometimes conflicting information. The bit Whiterdesign mentions about 2 types of AGM is the internal design of the batteries. A top, top quality AGM of the size fitted to our cars would cost between £400 and £500. Last edited by Boatie; Apr 2nd, 2020 at 22:40.

Apr 4th, 2020, 09:21	#20
Lexman8 Premier Member Last Online: Today 09:19 Join Date: Feb 2016 Location: Yorkshire	I used my Ctek 5.0 in AGM mode the other day to charge the battery. Went though all 7 stages, same as it always does. __________________ MY17 XC90 D5 Powerpulse Momentum: SENSUS, Osmium Grey, Blond, Walnut, Xenium, BLIS + CTA & RCM, Winter Plus, Fuel-fired Heater, Heated Rear Seats, Power Extensions, Tinted Windows Coming soon: XC60 Ultimate Recharge MY24 or 25 or...

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