Just a thought prior to the mod above, I'm still not impressed with the battery voltages you quote particularly 12.58V after a 28mile run, I would have expected higher than that with surface charge about, 12.7-12.8V.
Have you had your alternator checked at all?

nicedayforit

I haven't had my alternator checked but I used my iid tool to do a live reading of battery voltage on the trip, and it averaged out at 13.9 V. I do wonder if the battery is on its way out as it has been drained a number of times to below 8 volts (which I know is not good). Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Hi Lamb, a simple trick to test if the fan is still running and for how long, is to put a bit of tissue over the grill on the panel in the dash. The tissue will be sucked to it whilst the fan is running. It will fall off when the fans stops - which you will see through the window of the locked car.

My battery drain turned out to be the DSP amp connector - check this for water ingress if you haven't already.

nicedayforit wrote:

If you need to know which fuse is ignition controlled let me know and I will go and have a look on my car.
.

Try Fuse position 7 which is unused, I have a connector in it and I'm pretty sure it is ignition controlled.
As there is no fuse in it you will be able to plug a spade connector for the +ve straight in for the relay control circuit. I'm not sure which slot is live, the top one or the bottom but it's one or the other.

Out of interest re battery voltages, I was out in the car today and did just over 40 miles.
Running, the alternator was reading 14.0 to 14.1V, when I got back the battery was reading 12.9V. This voltage will decay to 12.6V over the next few days. I think these are the voltages you should be aiming to achieve on your car.

The L322 2003 Electrical library shows fuse 7 as unused but rated at 5A. Is this still OK to use?. I've bought a 30A fused 4 pin relay (blade fuse) along with an 'add a fuse' connector that allows original fuse back in plus new fuse for extra circuit. With this in mind would I be better using a fuse position that is already rated the same 10A or above?

As for my battery I am thinking it may be on its way out - too many drains!!! Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Fuse 7 at 5A will be fine to switch the contacts on the relay.
The substitute in line fuse for Fuse 12 will need to be rated as Fuse 12 ie 10A.

To clarify,

Fuse 7 +ve to terminal 86 of relay

Terminal 85 of relay to Earth

Fuse 12 +ve to terminal 30 of relay

Terminal 87 of relay back to Fuse 12 other slot.

Ok thanks - a job for tomorrow now if this blooming rain stops!!!  Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Nicedayforit,

All done! Works a treat and at the same time found the old redundant Nokia phone box which I duly removed. So it's a case of watch this space - and fingers crossed!!!!

And then it's back to the difficult starting when warm!

Thanks for your help  Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

Good job

Be interesting to see if it solves your flat battery problem.

Hi Guys

I've just noticed this and I am pretty sure my 2004 is suffering the same

Would something like this do as the relay http://www.ebay.co.uk/itm/12VDC-Automotive...xyRuJTlvky

Is any ground on the bodywork ok to earth the relay and am I right in thinking the 10a inline fuse goes between 87 on the relay and the other slot on fuse 12?

Incidentally I did try and source the wiring adapter 'YNI500040k' but also had no luck so would be great if this works

Elduke:
I used a 4 pine fused relay (30A but changed to 10A) - just like the one in your link - and the 'add a fuse' connector had two fuses which I also put 10A in as well. For the earth I used the Header Earth behind the passenger kick panel C0554. The metal plate is large enough to drill a small hole and attach your earth lead.
The 'lower' spade connector in fuse box in the Range Rover is the +ve Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr

^ That relay will be fine for the job.
As the relay incorporates an integral Fuse all you need to do is replace the 30A fuse shown with a 10A, this then is a substitute for Fuse 12 on the Fuseboard.
Any suitable and convenient earth point will act as an earth for the relay.
I'm not sure what wiring adapter YN1500040K was intended to do but the modification described above will certainly stop the small ac sample fan from running on when the ignition is off.

Interestingly it may be possible to contrive a similar modification to switch off the FSR when the ignition is off to avoid potential battery drain problems.

Great stuff guys Ill get that relay and replace the 30 for a 10a

I've pulled fuse 12 tonight so will see what its like in the morning.

Elduke
Did you do the job? It looks like my battery drain is now sorted, (famous last words), and am even considering using the fullfat for my hols this time towing my tin tent (as opposed to my discovery 2).

Nicedayforit
Looks like it's all sorted, thanks for your help  Current: 2004 Vogue 4.4 V8 - 2004 Discovery 2
Previous: 2000 P38 DHSE - 1995 P38 DT Man - 1990 3.9 SE Classic, 1980 3.5 Classic 2dr