Disco 2 Late 15P engine coolant change to fuel cooler

Hello,

Looking at the new addition to the fleet. a Late 4A chassis number 04 Plate D2 TD5.

|it would appear LR changed the coolant pipework again. This has the square box fuel cooler in place of the tube design. plus the fuel cooler flow loops directly from the Inlet flow direction of the thermostat and returns to the outlet of the on the Bottom off side of the rad.

Does anyone have a diagram of this configuration please?

Also it would appear in the pipe running from the bootom OS of the rad to the fuel cooler has a restrictor / NRV in it, will remove and check.

Reason for checking this is that the car is running at a max temp if 74 C even on a run, Have changed the ECT sensor with no change in reading. Plus I have a new thermostat to replace what is in the vehicle. But beofre doing this I would like to confirm any other changes that are present from the previous version 15P cooling system.


Radiator gets hot on NS top approx 65 C,and is cold approx 28 C on the OS bottom. temp transition in diagonal across the rad.

Cheers.

I would just do the stat first, basics need to be right before you go of tangent.

I'm prepared to modify mine to this new kind of fuel cooler when the original one will start leaking cos i dont want to change o-rings or pay so much for a new old type one, the square type is cheap and better made IMO, here's the info i'll rely on:



here's the source https://www.aulro.com/afvb/discovery-2-a/252313-new-type-fuel-cooler-retrofit.html

Cheers @sierrafery,

But this car has the updated system fitted as std. Not wanting to modify , but see if there is a diagram showing the flow path as it should be in this configuration or even a microcat picture. In your link someone says it has a bleed point, However this seem very low in the system to be a bleed point.

Cheers

The general consensus was that at the end no bleed point is needed and unfortunately there's no official diagram with that last system's coolant flow, that's it, the late facelift modells are not covered at all, nor in the electric diagrams cos the power distribution from the interior fusebox is different in reality but i couldn't find a diagram of it

OK,

Changed the thermostat, and all is good. Now up to a good running temp.

I have drawn out the flow digram as it is on the vehicle @sierrafery, when I get a chance will put the piccie on here as it looks different to the modifed system sketch you have posted from the Ozzie site.

Cheers

@sierrafery

Here is the diagram of how the cooling is set up using this fuel cooler on the last of the TD5 D2's



Cheers

Thanks for that, i appreciate your effort, it will help me figure out things coc i'll deffinitely go for that kind of cooler when the time comes