Total Loss of Coolant

[Normthe1]

G'day all,

My D3 has dropped all coolant in 24 hours and I have finally noticed the red stain on the driveway. Its not gushing or anything but I refilled it yesterday morning and this morning checked it again and its all gone.

I took it to a mechanic mate of mine (not LR specialist) and he reckons he can see coolant leaking from a couple of lines going into/out of a "cooler" down the bottom drivers side of the engine, just behind and inside the drivers side tyre.

I can't find any info on what this could be, any ideas???


Norm

[wrinklearthur]

Hi Norm

Don't drive it, if the leak is that bad, as you will over heat the motor!
Find a mechanic, that knows that model Land Rover, to locate the problem and repair it.

Cheers Arthur

[400HPONGAS]

Its Probably the RHS EGR cooler, it https://www.aulro.com/afvb/images/imported/2011/10/1389.jpghas two hoses ,one rear and the interconnecting front one

[Normthe1]

Thanks for the replies guys,

I am a fair way from a dealer or independant so I want to at least sort of know what I am looking at before I make the trip.

I set the car up on extended, filled the resorvois and got underneath to see where it was leaking. All I can see is that the water is coming from a drain hole in the protective plating just to the rear of where the front suspension trailing arm connects to the chassis. Obviously, it is something up behind the bash plate.

Like I said, I have a friendly mechanic who I trust enough to have a look, but can anyone help me out with what is behind that bash plate? 400HP, is the EGR cooler you are talking about behind that?

Cheers,


Norm

[Normthe1]

Its not where I thought it was by the way, this thing I saw is like a sardine can with 2 lines going in and another 2 going out, labelled BEHR with some numbers, any idea what this is???


Norm


G'day all,

My D3 has dropped all coolant in 24 hours and I have finally noticed the red stain on the driveway. Its not gushing or anything but I refilled it yesterday morning and this morning checked it again and its all gone.

I took it to a mechanic mate of mine (not LR specialist) and he reckons he can see coolant leaking from a couple of lines going into/out of a "cooler" down the bottom drivers side of the engine, just behind and inside the drivers side tyre.

I can't find any info on what this could be, any ideas???


Norm

[400HPONGAS]

BEHR ? thats the maker supplier of various THERMOSTATS , Oil coolers , and Fuel Coolers .From what you descibe sounds like the Oil cooler .
https://www.aulro.com/afvb/images/imported/2011/10/1306.jpg

[CaverD3]

Sardine can thing is the fuel cooler.
EGR cooler is the most likely culpret for a leaking joint/line going to/from it,

[400HPONGAS]

Interesting , CaverD3, this is what me manual says .

Fuel Cooler
Two fuel coolers are fitted to the vehicle. One is located in the 'vee' of the engine block, and has a coolant system
connection to aid heat transfer. The second cooler is located in the fuel return line and is a fuel to air cooler. For additional
information, refer to Fuel Tank and Lines (310-01C Fuel Tank and Lines - 2.7L Diesel
As usual the particular reference point (310-01C Fuel tank and lines ) doesnt come up in the Manual !!
Might be able to get at it through Topix ?
Do you have a picture of this Sardine can looking thing ?

[CaverD3]

I was talking about the second one on the lfuel lines close to the fuel filter. Looks like a sardine can.

I knew I remembered it from somewhere. :angel:

DISCO3.CO.UK - View topic - Fuel filter confusion. (http://www.disco3.co.uk/forum/topic38531.html)

DISCO3.CO.UK - View topic - Fuel Filter & Fuel Pump Help Please (http://www.disco3.co.uk/forum/topic50911.html)

[connock]

BEHR ? thats the maker supplier of various THERMOSTATS , Oil coolers , and Fuel Coolers .From what you descibe sounds like the Oil cooler .
https://www.aulro.com/afvb/images/imported/2011/10/1306.jpg

The thermostate housing shown is that made of some sort of plastic? and is mounted directlly under the Y junction for the inlet ait ( air flow meter I think) . Mine was leaking and replaced it only last Friday. Seemed to get worse farly quickly.

[~Rich~]

I just my one of those replaced not that long ago. I just had a small weep from it.
$30 part, 3hrs work to fit it! plus coolant.
They are of plastic and are not serviceable, yes they are in two parts sort of plastic welded together!

Part #4 it is.

https://www.aulro.com/afvb/images/imported/2011/10/1304.jpg

https://www.aulro.com/afvb/images/imported/2011/10/1305.jpg

[connock]

Thanks rich

yep that is the part. Lucky I looked actually had car packed ready to take off to the flinders for a couple of days and spotted it the night befor leaving, fixed in a hour in the morn and gone. Yes the flinders rangers are terrific at the moment green and lots of wild flowers out.

connock

PS Mine was only one hour as I have EGR blanks on so no pipe work to remove

[400HPONGAS]

Thanks Rich ,much better layout! of all the various coolant hoses , Jeez ,some 17 different hoses !!!!!!!!!! Clearly shows the hoses down to the Fuel cooler , no:11,probably where Normthe1's leak is.
Rich, are any/all of the Australian models fitted with the Fuel Burning Heater?
Where did you get that page from , as my elcheapo ebay special workshop manual is only some USA version for 2005 USA models, and is lucky to mention the TDV6 ,but is choko with V8 stuff !!!!LHD as well

[~Rich~]

Mine is the same I'm sure the file is called:
Land_Rover_Discovery3_05_FSM
Someone else could probably fill us in on the FBH, I doubt it due to our climate though.

[400HPONGAS]

Thanks Rich , went back and had a proper "mum look"
There it was under "303-03C Engine Cooling "
Even went one better , it has 4 layouts for Engine cooling
Automatic or manual , with or without FBH , most illuminating !!!
The elcheapo manual aint that bad afterall !!!
Never seen a Aussie version fitted with FBH , but you never know whats out there.

[PhilipA]

Thanks Rich ,much better layout! of all the various coolant hoses , Jeez ,some 17 different hoses !!!!!!!!!!

Wow!
I wonder if you have to take the body off to change some of them?

This really reinforces my view that D3s are not to be owned once they are over say 10 years old.
I know it doesn't mean much to you "rich guys" but the long term reliability must be suspect with that many hoses alone.
Regards Philip A

[connock]

Wow!
I wonder if you have to take the body off to change some of them?

This really reinforces my view that D3s are not to be owned once they are over say 10 years old.
I know it doesn't mean much to you "rich guys" but the long term reliability must be suspect with that many hoses alone.
Regards Philip A


What ya going to buy in ten years time, if your not "rich" then a push bike ? because all cars have a lot of hoses these days ( maybe not 17 thou ) Regular maintanance is the key to any long term life of a car. If you dont buy a car because of faults you can find you wouldnt own one.

connock

[Normthe1]

Turned out to be the bakelite (plastic???) thermostat housing.

Very similar in that its a $100 part that took 3 hours labour as half the inlet manifold had to come off apparently.

Anyway, no more leaks...


Thanks to all who replied...


Norm

[pohm66]

Just had the multi hose housing replaced in the TDV6,apparently it's made of 2 pieces that are welded together. It is this weld that generally goes according to the mechanic.

They haver done a few over the years however LRA don't seem to hold any stck here. They have always had to get shipped in from OS.

[bbyer]

Maybe I am wrong but it seems to me that for the most part, hoses do not fail any longer, instead the pieces they attach to blow up, leak, or plug.

It seems that rather than replacing hoses, one is replacing housings, fittings, adaptors, connectors, coolers, rads, cores, pipes, and whatever else the hoses attach to, but as to the hoses, not.