Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
Russell wrote:
Am I right in understanding what you are saying, on a D4 you have to have the electronics re-set to tell them that a new battery has been fitted? If so why
Yes, the Battery Monitoring System should be reset on fitting a new battery.Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 30 Oct 2013
Location: Sussex
Posts: 102
So my indie is pretty sure it is a faulty alternator overcharging (which is only at the intial start up).
Apparently, according to him, it is not detrimental to the car.
Booked it in to have the new alternator replaced with a new new one, after Christmas.
23rd Dec 2013 4:04 pm
Robbie
Member Since: 05 Feb 2006
Location: ¯\_(ツ)_/¯
Posts: 17932
Well, not unheard of as there have been a fair few overcharging alternators on the forum. Overcharging is not for the systems but most have in-built protection. Overcharging is not good for AGM batteries, should you have one of those.Land Rover - Turning Drivers into Mechanics Since 1948
Member Since: 30 Oct 2013
Location: Sussex
Posts: 102
AGM battery?
As I understand it the voltage is only high for a second or two then returns to normal with this particular fault.
23rd Dec 2013 5:41 pm
Quattrovalvole
Member Since: 30 Oct 2013
Location: Sussex
Posts: 102
New replacement alternator fitted, all working well now.
5th Jan 2014 11:03 am
CUCO
Member Since: 27 May 2011
Location: Spain & Oleee!!!
Posts: 609
Robbie wrote:
Russell wrote:
Am I right in understanding what you are saying, on a D4 you have to have the electronics re-set to tell them that a new battery has been fitted? If so why
Yes, the Battery Monitoring System should be reset on fitting a new battery.
What happens if you dont reset the d4 battery system and you change the batt?
(Mine is performing flawlessly, just curious, as i think it will be adjusted by time automatically as the system relearn the behaviour of the new batt....but maybe not...ence the question)
5th Jan 2014 11:52 am
Tartanterror
Member Since: 21 Feb 2014
Location: Passfield
Posts: 1
Quattrovalvole wrote:
New replacement alternator fitted, all working well now.
Did you have to replace the alternator with a genuine LR part or was OEM part ok?
24th Apr 2014 4:09 pm
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20778
Until very recently, there were issues with OEM/Genuine alternators. There was a faulty batch from Denso.
This has now been rectified, and Advanced Factors have the new, latest batch in stock My D3 Build Thread
Member Since: 30 Oct 2013
Location: Sussex
Posts: 102
Both original and replacment were genuine parts. As mentioned earlier there was a known issue with them. As soon as I mentioned the issue to the Indie he knew immediately what it was so obviously he had seen a few.
24th Apr 2014 5:26 pm
tartan terror
Member Since: 06 Aug 2007
Location: Hampshire
Posts: 7
Thanks for the replies.
I have exactly the same problem.
I have both alternator and battery replaced.
However, the alternator was a oem type.
Back to the indie garage, they contacted LR and were told that if the didn't use the genuine LR alternator then the problem described can occur.
Wondered if this was LR spinning a line or is fact.
Recap... Problem started with red battery light flashing and sat nav going on and off.
alternator replaced ... Then, next day, parking yellow light flashing and sat nav going on and off.
Garage said battery needed replacing. Replaced battery, problem remains.
Hence question.
24th Apr 2014 5:35 pm
Bigfoot
Member Since: 16 Sep 2010
Location: Michigan
Posts: 1
Getting up this posts again. I did the same things, battery replaced because of some odd faults. Problem fixed. Now after a few month alternator just died over night w/o any other indication (85k miles) and was replaced by a spare from free market (no Denso but looks exact the same). Was good for 2 weeks. Now on a long trip and heavy acceleration the full chistmas tree lit up with all failure messages you can imagen, could not even notice as fast as they showed up. Lastly the complete dashboard monitoring shut down, even no indicator function. I could luckely just drive in F mode (automatic transmission) an took it of from the highway. After switching of, locking all doors and start from scratch everything looked good but could just drive up to 5...10km/h an all happend again and again.
Finally towed to the dealer. Diagnose: overvoltage from alternator. Alternator will be changed the next days. I'll Keep you posted about the final results.
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