Discovery 2017

↓ Advertise on DISCO5.CO.UK ↓

  • Dazz360
    Member Since: 07 Aug 2025
    Location: Walsall
    Posts: 133
    United Kingdom 
    2017 Discovery Td6 HSE Lux Firenze Red

    Stop start on but never activated

    It seems everyone is trying to deactivate this but I’m trying to understand why mine isn’t working
    Any idea 💡 guys ?
    I’ve had the car for 4 weeks and we’ve drove 3 he runs in it but nothing
    16th Sep 2025 6:11 pm
  • Narpy
    Member Since: 30 Apr 2025
    Location: Stockport
    Posts: 116
    United Kingdom 
    2019 Discovery Td6 HSE Corris Grey

    I’m sure it can be disabled by unplugging a cable in the rear battery cubby.
    There is a video showing how to do this BUT if your battery is low on charge, stop/start doesn’t always function on my car and I presume this is common.

    Video showing how to disable this annoyance is here:
    https://youtube.com/shorts/X3KZ5QtUTr0?si=0mbzSxuxUvXd7ycA


    Last edited by Narpy on 16th Sep 2025 7:35 pm. Edited 1 time in total
    16th Sep 2025 7:31 pm
  • Mole HD
    Member Since: 18 Nov 2024
    Location: Orkney Islands
    Posts: 444
    Scotland 
    2017 Discovery Td6 HSE Fuji White

    A previous owner has maybe disconnected it using the method Narpy posted...or disabled it with an IID tool, the option is there in the CCF listing to disable it as well as enabling or disabling the button memory function.

    I put a how to post on the tips and tricks section on enabling the button memory function with an IID tool a day or so ago... https://disco5.co.uk/forum/thread4188.html

    Works fine on the Bling Barge now since it remembers the last selection for the auto stop/start button. I've always switched the damned thing off as soon as I start the car... so it now defaults to that when I start up...saves pressing the button every time.

    .
    16th Sep 2025 7:34 pm
  • Dazz360
    Member Since: 07 Aug 2025
    Location: Walsall
    Posts: 133
    United Kingdom 
    2017 Discovery Td6 HSE Lux Firenze Red

    Thanks guys I’ll be having a look at the wire your on about and read up on topic 👍🏻
    16th Sep 2025 9:19 pm
  • Wolfpack
    Member Since: 25 May 2019
    Location: Norfolk, UK
    Posts: 437
    United Kingdom 
    2017 Discovery Si6 HSE Corris Grey

    Maybe my battery is in permanent low charge (short journeys) because if I have the air con on, the auto stop never kicks in. Only if I’ve been on a longer journey or don’t have aircon switched on, does the car shut down.
    16th Sep 2025 9:27 pm
  • Dazz360
    Member Since: 07 Aug 2025
    Location: Walsall
    Posts: 133
    United Kingdom 
    2017 Discovery Td6 HSE Lux Firenze Red

    See, I think swmbo has auto climate on always so that could be a reason
    I’ve charged the battery with my ctek so I know it’s good

    Only reason I’m doing all this is because it’s still under five months of warranty so I wanna make sure and check everything before that runs out
    16th Sep 2025 9:32 pm
  • Mole HD
    Member Since: 18 Nov 2024
    Location: Orkney Islands
    Posts: 444
    Scotland 
    2017 Discovery Td6 HSE Fuji White

    My auto stop/start always seemed to work even when the car was giving the message 'Battery low, please start engine' first thing in the morning...or at least it allowed me to press the stop/start button and disable it. Pressing that button was so built into habit that I still go to switch it off after I start the engine even though it's now off by default after the CCF edit Rolling Eyes

    Not sure how different years of the D5 handle the stop/start. I read somewhere that some models had a second battery, some had a hybrid main battery that handled everything. I know mine only has a single main battery since I've raked around in the battery compartment...if there had been a rogue battery shoved in there, I'd surely have noticed.

    I'd tend to agree that low battery voltage would effect it's operation...although on the occasions I'd forgotten to press the damned button, the auto stop/start would only kick in under certain conditions...like the length of time my foot was on the brake pedal or something?... Since it didn't always stop the engine at junctions, even if I had to bring the car to a complete halt.

    We don't have exotic things like traffic lights...or traffic...or towns up here that I could properly test it. Not that the stop/start served any useful purpose for me up here in the middle of the north sea. It's just a fuel guzzling, DPF destroying annoyance that kept shutting my engine off when I didn't want it to.

    Besides the annoyance factor and needless battery drain adding to the list of reasons why an auto stop/start being enabled by default is a bad idea, I hated that it took agency and control away from me as a driver...hence me searching through the CCF list with an IID tool to find that button memory option and enabling it.

    Having an IID tool, the CCF edit seemed the better option rather than pulling the plug out since the stop/start still works exactly as it's supposed to... except now, I can make the conscious decision to enable it by pressing the button, rather than the car making that decision on it's own.

    .


    Last edited by Mole HD on 18th Sep 2025 11:32 am. Edited 19 times in total
    16th Sep 2025 9:46 pm
  • Dazz360
    Member Since: 07 Aug 2025
    Location: Walsall
    Posts: 133
    United Kingdom 
    2017 Discovery Td6 HSE Lux Firenze Red

    Thanks mole
    16th Sep 2025 10:57 pm
  • Dazz360
    Member Since: 07 Aug 2025
    Location: Walsall
    Posts: 133
    United Kingdom 
    2017 Discovery Td6 HSE Lux Firenze Red

    So I’ve checked the wire that plugs onto near the battery that’s okay that’s plugged in. I’ve been reading up online in the manuals and it says that if the car is being used for jump starting it can damage the BMS
    Which I believe monitors the battery voltage or current and whether or not the stop start should activate anybody else got any thoughts on this?
    Now I know this video link I add is for a discovery sport but I believe it is a very similar system to the discovery
    ?si=crg-CLs8QO1CpJhb
    19th Sep 2025 12:54 pm
  • Mole HD
    Member Since: 18 Nov 2024
    Location: Orkney Islands
    Posts: 444
    Scotland 
    2017 Discovery Td6 HSE Fuji White

    Maybe it's had a new battery fitted at some point and the BMS hasn't been reset...

    Have you got a Gen 4 IID tool Dazz? If you have you can test the BMS for DTC's from there. Not sure if the older Gen 3 IID tool will do it...may be worth a try though.

    .


    Last edited by Mole HD on 19th Sep 2025 1:15 pm. Edited 1 time in total
    19th Sep 2025 1:13 pm
  • Dazz360
    Member Since: 07 Aug 2025
    Location: Walsall
    Posts: 133
    United Kingdom 
    2017 Discovery Td6 HSE Lux Firenze Red

    Not sure
    I know I’ve got the blue tooth
    19th Sep 2025 1:15 pm
  • Mole HD
    Member Since: 18 Nov 2024
    Location: Orkney Islands
    Posts: 444
    Scotland 
    2017 Discovery Td6 HSE Fuji White

    It'll have G3 or G4 on the label...the D5 needs the G4 version. It's £220 to upgrade from the G3 to the G4 on the GAP website...




    Last edited by Mole HD on 30th Sep 2025 9:17 pm. Edited 2 times in total
    19th Sep 2025 1:17 pm
  • Dazz360
    Member Since: 07 Aug 2025
    Location: Walsall
    Posts: 133
    United Kingdom 
    2017 Discovery Td6 HSE Lux Firenze Red







    This was all I had when I checked
    19th Sep 2025 1:19 pm
  • Dazz360
    Member Since: 07 Aug 2025
    Location: Walsall
    Posts: 133
    United Kingdom 
    2017 Discovery Td6 HSE Lux Firenze Red

    Mole HD wrote:
    It'll have G3 or G4 on the label...the D5 needs the G4 version. It's £100 to upgrade from the G3 to the G4 on the GAP website...


    I’ll check when I’m home tonight
    Tbf it’s still linked to the D3 because of repairing it so not changing it just yet till that’s sold
    19th Sep 2025 1:21 pm
  • Mole HD
    Member Since: 18 Nov 2024
    Location: Orkney Islands
    Posts: 444
    Scotland 
    2017 Discovery Td6 HSE Fuji White

    Like I said...it might be that the battery has been replaced at some point but the BMS reset by telling the car it's got a new battery might not have been done...could be the BMS module that's faulty, but easy things first.
    19th Sep 2025 1:32 pm
  • Forum Permissions
  • You cannot create new threads in this forum
    You cannot reply to threads in this forum
    You cannot edit your posts in this forum
    You cannot delete your posts in this forum
    You cannot vote in polls in this forum
All times are GMT DISCO5.CO.UK © 2016 - 2025 Futuranet Ltd DISCO5.CO.UK RSS Feed - All Forums 
DISCO5.CO.UK is independent and not affiliated to Jaguar Land Rover.
Switch to the mobile site
Close