ratrunner
Member Since: 20 Nov 2015
Location: cotswolds
Posts: 195
  
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| start stop still not working |
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The start stop has not worked for some time although it will kick in now and again so seemed very much like battery problem so I thought I would change the SS battery.I took it to my local independent who fitted and programmed via the OBD 2.However it still does not work and he says it shows no faults.Where do I go from here ? it's not a major thing but I would like it working.Thanks malc
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 8th Nov 2020 11:44 am |
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Oxford-boy
Member Since: 07 Sep 2015
Location: Oxford
Posts: 1116
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That happened to me. Intermittent... I kept charging batteries, didn't do anything. Changed both (due to age of vehicle) but still didn't work despite the vehicle being programmed that it had new batteries. This next part isn't the help you want as sadly I cannot remember what they did but my local independent then had their 'young lad' who is the electrical guru look at it. He found that there was another function needing telling the batteries were new.
It now works when the batteries are charged up/on longer runs and there isn't too heavier a drain on the system.
Bizarrely enough, my last D4 (MY16) had poor stop start and the main battery went, the AA changed it and did  all programming the new battery to the car and for the remainder of it's time the stop start worked without issue....
MiD Engineering near Wantage, Oxford sorted mine if you wish to contact them for some advice?
 Jim
2014 Discovery 4 XXV SDV6 Causeway Grey
2016 Discovery 4 HSE Lux SDV6 Loire Blue - now gone
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| 8th Nov 2020 12:08 pm |
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notyalc
Member Since: 07 Mar 2020
Location: Northumberland
Posts: 75
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| Re: start stop still not working |
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ratrunner wrote:The start stop has not worked for some time although it will kick in now and again so seemed very much like battery problem so I thought I would change the SS battery.I took it to my local independent who fitted and programmed via the OBD 2.However it still does not work and he says it shows no faults.Where do I go from here ? it's not a major thing but I would like it working.Thanks malc
You need to check voltage of both batteries.
My issue was and is the main battery of which the voltage drops, which it does when parked up.
I would say that my car needs at least a 1 hr run to charge the main battery up to a level that the ss will work, and that’s with a new battery 3 months ago, but only used a couple of times a week.
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| 8th Nov 2020 1:04 pm |
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LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23833
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My 2015 D4 needed a software update when the S/S stopped working as it should do. It was done by LRA from memory. 2006 D3 HSE (Original & still the best)-GONE
2010 D4 HSE (A bit bling)-GONE
2014 D4 HSE (Almost too bling)-GONE
2015 D4 HSE (A heated what?)-GONE
2016 D4 Landmark (Written Off)-GONE
2016 D4 Landmark (Surely the last!) PD1881 rims-GONE
2017 FFRR SDV8 Autobiography (now semi-retired)
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| 8th Nov 2020 1:14 pm |
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ratrunner
Member Since: 20 Nov 2015
Location: cotswolds
Posts: 195
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Yes mine is MY 15
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| 8th Nov 2020 1:38 pm |
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ratrunner
Member Since: 20 Nov 2015
Location: cotswolds
Posts: 195
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| Re: start stop still not working |
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notyalc wrote:ratrunner wrote:The start stop has not worked for some time although it will kick in now and again so seemed very much like battery problem so I thought I would change the SS battery.I took it to my local independent who fitted and programmed via the OBD 2.However it still does not work and he says it shows no faults.Where do I go from here ? it's not a major thing but I would like it working.Thanks malc
You need to check voltage of both batteries.
My issue was and is the main battery of which the voltage drops, which it does when parked up.
I would say that my car needs at least a 1 hr run to charge the main battery up to a level that the ss will work, and that’s with a new battery 3 months ago, but only used a couple of times a week.
Yes the main battery could be the next move it's five years old now.
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| 8th Nov 2020 1:40 pm |
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ratrunner
Member Since: 20 Nov 2015
Location: cotswolds
Posts: 195
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Oxford-boy wrote:That happened to me. Intermittent... I kept charging batteries, didn't do anything. Changed both (due to age of vehicle) but still didn't work despite the vehicle being programmed that it had new batteries. This next part isn't the help you want as sadly I cannot remember what they did but my local independent then had their 'young lad' who is the electrical guru look at it. He found that there was another function needing telling the batteries were new.
It now works when the batteries are charged up/on longer runs and there isn't too heavier a drain on the system.
Bizarrely enough, my last D4 (MY16) had poor stop start and the main battery went, the AA changed it and did all programming the new battery to the car and for the remainder of it's time the stop start worked without issue....
MiD Engineering near Wantage, Oxford sorted mine if you wish to contact them for some advice? I will run it for a while just to make sure the main battery is fully charged then go back to my indi, who if he can't fix it then no one can. 
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| 8th Nov 2020 1:43 pm |
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400-ascona
Member Since: 05 Apr 2019
Location: Derby
Posts: 20
 
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I wish mine would stop working! Sometimes I forget to turn it off and it annoys me greatly. I believe it does more harm than good, especially when you consider the short period of time it actually turns off for. Rob
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| 9th Nov 2020 7:46 am |
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LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23833
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I find it odd when I’m sitting at traffic lights in the Toyota with the engine running. It’s the only one of my cars without S/S. 2006 D3 HSE (Original & still the best)-GONE
2010 D4 HSE (A bit bling)-GONE
2014 D4 HSE (Almost too bling)-GONE
2015 D4 HSE (A heated what?)-GONE
2016 D4 Landmark (Written Off)-GONE
2016 D4 Landmark (Surely the last!) PD1881 rims-GONE
2017 FFRR SDV8 Autobiography (now semi-retired)
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| 9th Nov 2020 8:22 am |
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Ceekay
Member Since: 17 May 2009
Location: Bury
Posts: 2089
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Could try the known problem with the dual battery isolator thats situated in the stop/start battery tray. There was a LR Bulletin for this for vehicles upto around mid 2015 IIRC D4 HSE Lux MY16 Club Waitomo
D3 HSE MY06 missing her still…
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| 9th Nov 2020 2:12 pm |
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ratrunner
Member Since: 20 Nov 2015
Location: cotswolds
Posts: 195
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Can that be fixed via the OBD2 port ?
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| 10th Nov 2020 7:29 am |
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NJSS
Member Since: 06 May 2009
Location: Catherington, Hampshire.
Posts: 10808
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400-ascona
Quote:I wish mine would stop working! Sometimes I forget to turn it off and it annoys me greatly. I believe it does more harm than good
Absolutely, I'm generally pretty "green" with regard to recycling, avoiding waste etc.., but S/S can't be good for the life of my D4 which I intend to retain until it is at least 10 years old (someone please remind me from time to time).
NJSS Am I Gammon or Woke ? - I neither know nor care.
2016 Discovery 4 Landmark
2011 Mercedes Benz SL350 (R230)
1973 MG B GT V8 - 3.9L John Eales engine, 5 speed R380 gearbox, since 1975.
1959 MGA roadster - 1.9L Peter Burgess Engine - 5 speed gearbox
Past LRs - Multiple FFRs, Discos & a Series I - some petrol, some diesel,
none Electric or H2 fuel cell - yet.
There are 10 types of people in this world: Those who understand binary, and those who don’t.
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| 10th Nov 2020 8:30 am |
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Ceekay
Member Since: 17 May 2009
Location: Bury
Posts: 2089
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ratrunner wrote:Can that be fixed via the OBD2 port ?
Nope...New actuator if both batteries have been replaced and still no joy then this is quite possibly your problem as they were known to fail upto mid 2015 apparently. D4 HSE Lux MY16 Club Waitomo
D3 HSE MY06 missing her still…
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| 10th Nov 2020 1:06 pm |
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ratrunner
Member Since: 20 Nov 2015
Location: cotswolds
Posts: 195
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| 10th Nov 2020 1:11 pm |
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Gary_P
Member Since: 03 May 2016
Location: Kent
Posts: 1670
 
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If your main battery is 5 years old , that will be why your stop /start isn't working. I had the same problem. Don't forget the battery reset after the swap to tell the car it's got a new battery.
Cheers Gary
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Discovery 4 HSE 2016MY
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| 10th Nov 2020 8:01 pm |
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