i have had a starting problem ,sometimes it takes a few turns to start and other times it fires straight up .fault codes 1260 and 09f6.i have changed the pump on the side of the tank and put a new filter on ,it doesnt do it all the time ,has anybody had this problem ,thanks.

I had this on my TD6 and was two failing injectors

Does your Glow Plug light come on? and do you wait for it to go out before starting? It can make a difference to how quickly it all fires in to life

Failing injectors normally make a hot engine harder to start than a cold one. Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

yes the glow plug light does come on ,i do wait for it to go off ,i have done a bleed off check on the injectors and they seem to be fine,it does it when cold or hot

Possible air leak in the fuel pipes, intermittent glow plug timer? Tricky one that, it's sooooo annoying when it only does it some of the time Might pay you to get it to a diesel specialist (Bosch Agent), they should be able to throw some light on it, otherwise you could be changing parts till the cows come home and still not sort it  Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

OOOOOO what about the immobiliser in the key? maybe the ECU is having a hard time seeing it, hopefully someone can shed some light on it. I don't know if it knocks out the whole starter system or just the fuel, which would allow it to turn over but not start. I'm sure that I read about the transducer pick up playing up on here, but don't ask me where  Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

found the problem the fuel pump relay in the boot, is this just a normal 40 amp relay ,can i get one from a motor factors or does it have to be main dealer part only,also found i have 3 glow plugs out so doing that this week ,it doesnt have trouble starting on 3,thanks for all the help and advice.

It's just a standard 40A relay.... but it has quite a hard life.
I changed mine a while back, 70K miles, on a preventive basis and used a genuine one from Dan. When I opened up the old one I found the contacts to be burnt more than I would have liked.

i have opened mine and you are right the contacts are burnt,you dont have the part no do you,thanks.

No I don't have a part number for the relay unfortunately, I seemed to remember I just asked Dan for a fuel pump relay.
If you are stuck in the meantime you can always file/emery the contacts flat, they will last for a while assuming the relay still switches ok.

FYI a lot of those relays in the boot fusebox are just standard type relays, I know that the EAS is a 70 amp one. Have a look at the numbers on the terminals and check them on google, there is a very good chance that it's a std relay and you can save a few quid, by not having a landrover sticker on it  Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

Idea for company --- making Land Rover stickers !! 2015 4.4 AB
GSXR 1000 K5
R1 1998

^^  Yesterday I couldn't spell Engineer... Today I are one!
Inventor of the 'Guide-o-Matic automatic wheel alignment tool'
Former long term L322 owner, Up/Down graded to a Classic Tractor!

Perhaps a daft question -how do you diagnose that ? Turn the ignition on and listen for the pump, or will it run but not ideal power as relay is dodgy, or do you have to get the old voltmeter out ? 2011 Range Rover Vogue SE 4.4 TDV8

Previous cars :
2003 Range Rover Vogue TD6
1999 Discovery Td5 ES
1995 BMW M5 3.8 6 speed
1992 Range Rover 3.9 Efi Vogue
1992 BMW M5 3.8
1988 BMW 735i SE
1989 Ford Sierra XR4x4 2.9i
1981 Ford Fiesta Supersport

you can test the pump with a piece of wire with a male connector on it take the relay out and put the spade connector in the top terminal then touch it on the live red wire you can hear the pump if it is ok ,or swap relay with the next one to it to test.