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wriggly
Member Since: 18 Jun 2020
Location: Gloucester
Posts: 3
 
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Hi, first post sorry if in wrong place.
My D4 2016 Ecostop/start stopped working at the start of lockdown. Otherwise running fine. It's been driven every few days in lockdown for short trips only.
Yesterday I do a couple local runs maybe an hour's driving all day then a 45 minute run to nearby town. All is well but then I park up, do my chore and get back to the vehicle to find that it never locked, absolutely nothing works or lights up. Jump leads get it started but all the way home it's flashing occasionally ABS Fail, Parking brake fail, and maybe other errors too fast to see along with various clicking noises from relays all over.
So, main battery and perhaps secondary seem dead, the reason why so sudden is unknown. I leave it running for 3 hours on the drive thinking it would charge battery. Nope. Soon as I switched off it's all dead again.
So, before I jump it and go wait to be ripped off at the dealer, SHOULD a 45 minute drive home and 3 hours ticking over have recharged the battery to any degree? maybe a charging fault would explain why it drained in the first place?
It's my first disco, first automatic and I have not the slightest interest in tinkering. It's just a big beautiful tool that I love and I'm definitely the dealer's favourite type of newbie owner! All suggestions welcome.
Thanks
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 18th Jun 2020 7:53 am |
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wriggly
Member Since: 18 Jun 2020
Location: Gloucester
Posts: 3
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Thank you, always good to know we're not alone!
So new battery needed rather than mess about with chargers?
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| 18th Jun 2020 8:13 am |
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Washwipe
Member Since: 19 Apr 2013
Location: Bucks Oxon Herts Border
Posts: 3169
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You can try a charge, but I think it’s past that.
Your Stop/Start battery may well be ok, mine is still original, if the Stopt light was on when it failed to work then I suspect it needs changing also, if the Stop Start just didn’t work an no lights it could have been the main battery dragging it down.
The BMS will need resetting after changing for optimum charging.
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| 18th Jun 2020 8:21 am |
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wriggly
Member Since: 18 Jun 2020
Location: Gloucester
Posts: 3
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Thanks, it's is now at a non-dealer doing full battery diags and new batteries if needed. Appreciate the info.
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| 18th Jun 2020 10:50 am |
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Daf
Member Since: 21 Aug 2007
Location: Wales, mun ;-)
Posts: 164
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I'm in a similar situation. Picked up one kids from school at 1pm. Tried to go back for the other two at 2pm but the car was totally dead. No power at all, even to open the door. Entered via the passenger side and tried the ignition and it is completely dead. I have a CTEK 5.0 running on it at the moment trying to charge the battery, but after two hours, it is still dead. Is the battery knackered? Should I get a flicker of power after two hours of charging? Charger is warm to the touch, so is doing something.
If the battery has had it, I can order a new one and have about an hour to do so. Quick reply would be great!
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| 15th Apr 2021 3:16 pm |
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daimlermg
Member Since: 31 Jan 2010
Location: N Yorks
Posts: 140
 
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For what it costs I would get a new one from Tanya [url]https://www.tayna.co.uk/ next day delivery.
I had the same problem a few weeks ago and a new battery sorted it.[/url] Faultmate MSV-2
500,000 plus miles in RR,s and trying for more without breakdowns this time 
Gone Lexus RX400h SE
Past Audi A6 avant Qutro
Toyota Supra
Long line of RR's
Had for 40 years but now gone 1935 Daimler and 1937 MG
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| 15th Apr 2021 3:33 pm |
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2011Disco4
Member Since: 23 Feb 2021
Location: Alresford
Posts: 58
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Could be a failing alternator. Mine gave up on me with similar issues and the indy that fixed it said it's because they're mounted low under the engine so tend to get a lot of water on them when driving in the wet.
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| 15th Apr 2021 3:33 pm |
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daimlermg
Member Since: 31 Jan 2010
Location: N Yorks
Posts: 140
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Also from a different thread
Could be a dodgy engine to chassis earth strap, try putting a jump lead from the engine lifting point to the body and see if that helps. Faultmate MSV-2
500,000 plus miles in RR,s and trying for more without breakdowns this time
Gone Lexus RX400h SE
Past Audi A6 avant Qutro
Toyota Supra
Long line of RR's
Had for 40 years but now gone 1935 Daimler and 1937 MG
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| 15th Apr 2021 3:34 pm |
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Daf
Member Since: 21 Aug 2007
Location: Wales, mun ;-)
Posts: 164
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I've been working from home for over a year so 99% of my journeys have been to school or Tesco - all around a couple of miles. I've been charging the battery when I had a dashboard of "special programmes off" using the CTEK and that has been fine. However, it flashed a "special programmes off" earlier in the week but had been fine since (it warmed up a bit outside). So, I suspect the battery has been "running on fumes" because I didn't charge it. However, I've never had it completely dead in the past. Always managed to get a radio or headlights on or a clicking when trying to start. This time there is absolutely nothing. 3 hours of charging later and still dead.
The good news is that it is a Tayna battery and that there is a 4 year warranty that expires in October this year. The bad news is the inconvenience of it all.
If it is the alternator then I didn't see any lights on the dash (I've had the problem before on a previous alternator) and I suspect that charging the battery should give me something. But nothing even after 3 hours?
I'll try the jumper lead earth trick just to be sure.
I'll let you know how good the Tayna warranty system is, if the Battery is still bricked.
Thanks all.
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| 15th Apr 2021 4:12 pm |
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Daf
Member Since: 21 Aug 2007
Location: Wales, mun ;-)
Posts: 164
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Disconnected the CTEK 5 charger and did the earth strap trick with a jump lead but dead as a Dodo. Reconnected the charger and rather that being on step "2" the green light started to flash. Looked it up in the manual (I know, drastic measures) and the CTEK cannot detect a battery. Put a multimeter across the terminals and it registers 0.2V. So, probably too low for the CTEK to detect it and start pumping juice into it.
Looks like a warranty job to me.
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| 15th Apr 2021 4:58 pm |
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Oxford-boy
Member Since: 07 Sep 2015
Location: Oxford
Posts: 1122
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Battery. Happened on my 65 plate MY2016 as well Jim
2014 Discovery 4 XXV SDV6 Causeway Grey
2016 Discovery 4 HSE Lux SDV6 Loire Blue - now gone
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| 15th Apr 2021 5:05 pm |
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Daf
Member Since: 21 Aug 2007
Location: Wales, mun ;-)
Posts: 164
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Bought another battery from Tayna and then used the packaging, plugs etc to return the broken one under warranty. It took them around 5 days but they tested it, found a fault and credited my Paypal account.
So, their battery service is good and you cannot fault their warranty system either.
Thanks for all the advice.
Daf.
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| 27th Apr 2021 1:39 pm |
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LT
Member Since: 31 Dec 2005
Location: South West
Posts: 23868
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That’s a good result. 
Both batteries on my last 2016 D4 were replaced under the main warranty before the vehicle was 3 years old. 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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| 27th Apr 2021 2:04 pm |
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M3bobby
Member Since: 21 May 2018
Location: Sleaford, LINCS.
Posts: 857
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The problem with modern batteries is that once they drop below about 85% charge, they are goosed forever, you can’t bring them back. The CTEK is a good bit of kit but it’s not smart enough. My last battery would go through the cycle on the CTEK 5 but as soon as it was finished and you tried to start the car. It was dead. The CTEK couldn’t detect the surface charge and that was it, new battery. If you have a Silver Calcium battery, especially a YUASA branded one and it goes flat, don’t waste your time on diagnosing, just buy an AGM. 012MY RRS 5.0 Supercharged Autobiography (Current)
Mods:
TPMS (Complete but got an issue)
Genuine LR DRLs (Complete)
Remote Boot close from key fob (Complete)
2016 Discovery 4 Mirrors AKA RRS2 (Complete)
2014 L405 Surround Camera retro fit (Now 2016 L319)
2013 RRS Dual View Screen fit (Complete)
2016 LR4 RSE (Complete)
2014 LR4 Homelink (Complete)
2016 FFRR Electrochromatic Wing Mirror Glass (Complete)
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| 1st May 2021 10:54 pm |
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