Could be the problem. 11.5v isn't a good level, but 14.5 charging voltage is ok.

Folks fit the 110ah Bosch, battery but he genuine LR unit is a Varta battery, and is designed for the purpose, which though has a lower AH rating has a much higher CCA rating than the non genuine batteries. It's a place to start. They are really sensitive to low voltages and can throw up ghost errors which disappear.... There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

Not sure of make but it is CCA 900
If that means any thing.
Thanks Dave

That's a fairly healthy figure, the LR one is 950 CCA, but only 90ah.

Have you monitored the voltage when running on the screen, and kept an eye on it over a decent journey? When under electrical load, heated everything (seats, screens, steering wheel) lights and stereo on, does the voltage remain stable? Has the car ever had a new alternator? There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

Good morrning,
On a short trip last night with lights and heater on it stayed at 14.5/14.0.
Trip was too short to put seats and wheel one.
Thanks Dave

Have you tried measuring the battery voltage across the battery posts? It's always possible the battery terminals weren't tightened correctly when your new battery was fitted.

Hi

Why not just take the car back and reject it as "not fit for purpose" if you have just bought it?

It would save all this worry for you.

Cheers Roy 2005 L322 Vogue Gold gone
2006 L322 Vogue Black gone
2011 L322 Vogue Silver gone
2011 L322 Autobiography Black gone
2015 L405 Autobiography LWB Black gone
2019 L405 P400e Range Rover Autobiography LWB Eiger grey / black roof gone
2001 P38a 30th Anniversary Wimbledon Green gone
2019 L405 P525 Autobiography LWB British Racing Green

I can't get my head round this, took it back to Indy today and they said fault code p00089-2f was stored fuel pressure regulator performance.
On my way home checked the volts on hidden screen.
Would only go to 13.5 volts when driving and 12.5 when at idle, lights on or off, heated seats and wheel on or off.
My question is could the battery/alternator being faulty throw up the fuel pressure fault.
Indy said it needs to go to a fuel injection specialist.
Drove fine on the way home and been out for a twenty mile run today all running fine.

Sorry, but I've never heard of the symptoms you describe being attributed to low fuel pressure, you are more on the money with low voltage but I wouldn't have thought your slightly low battery will be the cause... take a visit to Cam-Tech, Craig will sort it out for you... Don't want to cast aspersions on your Indy but some are much better than others....

I would imagine the battery was sat about for a while and down on charge when fitted, at this time of year the batteries get a lot asked of them, you could try disconnecting it and giving it an overnight charge with a battery charger to see if that makes any difference...

Good Luck  Pete
I now have permission from the boss to use Y.O.L.O. Enjoy life
__________________________________________________
2014 L405 Autobiography SDV8 4.4 Loire Blue Ebony interior
2011 L322 Vogue SE 4.4 TDV8 Baltic Blue. Sold
2012 L322 Autobiography 5.0 Supercharged Ipanema Sand Sold
2002 L322 Vogue 4.4 V8 Epson Green (Fatty Offroader) Sold
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if its showing 12.5 at idle, that seems a bit low. Should should be reading around 13.5 minimum when running.

You could be at the start of alternator failure. which can give lots of funny results. Ive not really heard of TDV8 having many injector problems, or much in the way of fuel supply issues either, unlike the TD6 which suffers from pump failure.

As Pete says, give the battery a good bench charge and see how you go. Take the voltage across the terminals, before you put it back in, take it for a run for a bit with lots of load on it then disconnect it and see what you have on the battery. If the voltage has dropped at all then it could be pointing to charging issues. There is nothing that can't be fixed with a hammer😜😜
FFRR 4.4 SDV8 Autobiography Santorini Black.
KIA E-Niro 4+
2021 Discovery 5 D300 MHEV commercial

Just done a test with volt meter across the battery, 12.7 with ignition off and 14.7 when running with lights on at idle.
Screen was only reading 13/13.5 !!
Checked the inter cooler hoses while I was there, all good.(that's an easy job)
Have taken the car on a few short trips today and all has been fine no bong bong.
I have been putting the screen volt meter on when first getting in and then starting. Reads 11volts and drops to 10 on cranking but then jumps straight up to 13/13.5 no bong bong ?
Will check with volt meter in the morning before start up.
I can't fall out with this car I love it too much.

I'm starting to think failing alternator. A failed alternator in a FFR, D3/4/RRS will suck charge out of the battery. When mine completely failed it fully discharged the battery in under 10 minutes, after the battery was sitting on a charger for 2 days. Thankfully the battery survived after two full discharges that week.

Take a voltage reading and then if you can leave the car for 24 hrs and take another reading. If you need to unlock it leave it sit with the bonnet open for 10 min so everything is shut down again and not drawing power. If there isn't a big voltage drop the battery is probably OK.

I've read these alternators can start to fail intermittently. Mine lasted about 240,000km, but many seem to fail at about 100,000km.

Good luck.
Pete. ______________________________
Vogue tdv8 08MY poverty pack - wow

I've twice experienced what you describe. Both ended with the alternator being replaced. Also had this when the fuel level was low although the computer indicated about 80 miles range so indicating the tank sensor is not that accurate. Adding fuel solved that. You can test by holding open the fuel rail Schrader valve when someone turns on the ignition. If it doesn't spray, not trickle out add fuel and retest.

The problem with low voltage is it triggers damn near every heart stopping fault code imaginable.
Couple of other issues the first from experience which is whilst you can tighten the battery terminal some battery posts aren't thick enough to be properly gripped by the terminal. Second one which I've not, touch wood, personally experienced, is the brake light switch at the pedal can create a lot of faults.

Questions: How much fuel is in the tank? Are any of the electrics not working?
You really don't want the battery in these to fall below 12.6V. I'm assuming you've checked the serpentine belt driving the alternator is tight? Rehab is for quitters!!!

RR 2007 3.6 TDV8 Java Black *
RR 2007 3.6 TDV8 Zermatt silver *
RR 2000 P38 4.6 Met red *
Mercedes 300TE 4-Matic *
Jaguar 420 (1969) *
Nissan 300Z
Citroen XM 2.5TD X 6
Bentley Continental R
Hydrocon Highlander
Hydrocon Hamilton
Hydrocon Huntly
Am told the ones with a * are to be offered for sale! 😳

Departed
LR 1992 110 2.5TD
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RR 4.2 Supercharged with LPG, Vogue SE 2007 Buckingham Blue
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Fuel is all ok. Never let it fall below 1/2 tank.
Went to move it this morning and did not put the hidden screen on as I was in a rush. Started fine, put the program button on and as soon as I did this all the fault codes came up and went into limp mode again. Trun off and straight back on and all ok. Spoken to the dealer I bought it from and he is going to have the car back next week and hopefully get to the bottom of it.
The first couple of times it did it was on the old battery, and did it when driving along, dealer replaces the battery and the times it has done it since is only on start up. Runs like it's only firing on 6 or 7 then up with the faults and into lime mode.
I am thinking bad battery when on the move and bad alternator on start up.
Thanks Dave

It's really, for me, pointing to the battery/alternator with the possibility of something draining the battery overnight hence the problem when starting in the morning. As soon as it starts the alternator is possibly bringing the battery up to a satisfactory level.
Try measuring the battery voltage before starting it in the morning. Rehab is for quitters!!!

RR 2007 3.6 TDV8 Java Black *
RR 2007 3.6 TDV8 Zermatt silver *
RR 2000 P38 4.6 Met red *
Mercedes 300TE 4-Matic *
Jaguar 420 (1969) *
Nissan 300Z
Citroen XM 2.5TD X 6
Bentley Continental R
Hydrocon Highlander
Hydrocon Hamilton
Hydrocon Huntly
Am told the ones with a * are to be offered for sale! 😳

Departed
LR 1992 110 2.5TD
RR 2000 Holland & Holland 4.6 LPG
RR 4.2 Supercharged with LPG, Vogue SE 2007 Buckingham Blue
RR 2002 4.4 V8 Zambesi Silver

Quick update.
Dealer has asked me to take the car to another indy he knows in bridgewater. (I live in bristol he is in southampton)
indy fitted new genuine battery for me this morning and cleared the faults. low fuel pressure was there again.
he said use it for a few days and see how i get on.
must admit the car started in a different tone, how can I say, span the engine over faster.
anyway 40 miles on the motorway and all ok. did the voltage test on the way home and 13.5/14.5 so all seams ok.
did notice the fuel consumption was up. 75/80 mph on motorway plus 3 or 4 miles each end on a roads gave me 32.6. mpg.