Member Since: 29 Jun 2010
Location: North Yorkshire
Posts: 3
Coolant Loss
Hi, I'm having problems with my coolant level on my D3 08. I've searched this on other sites but can't find any definitive answers as I have similar but also additional symptoms.
My problem is I'm losing coolant as indicated on dash + level indication on bottle but can't find an external leak.
Thought maybe it was the EGR cooler but I'm not getting any white smoke as mentioned by others. If this was to fail does coolant enter the combustion chambers & have the potential of engine failure?
When I remove the expansion bottle cap the system is under pressure & the bottle refills aerated coolant but with some loss of coolant.
I have no visible signs that the head-gasket has blown i.e. Mayo under cap.
Someone did mention a transmission cooler at work but can't find any info on this & symptoms if failed (transmission works OK).
Temp gauge indicating OK. Have noticed when start car getting bubbles through the top hose into bottle. Once up to temp have loosened the vent plug to release air. Again not sure how this bottle works as seems to have a couple of chambers ( why can't it be simple like my defender & most other cars).
I understand I have asked a lot of questions that have been answered in various other threads but I don't think it's the float within the bottle (as I'm loosing coolant) can't find an external leak & no white smoke.
Hopefully with the vast knowledge on this site someone will point me in the right direction prior to giving
a garage a lot of money.
10th Dec 2016 6:17 pm
PeterHorten
Member Since: 20 Aug 2013
Location: Innsbruck
Posts: 17
I would like to use this thread, as I have coolant loss as well. Tank was changed already. Loss is real.
So far there are some explanations
1. Distributor in the middle in the V
2. Thermostat
3. EGR cooler. If these leak, how do you notice it or where is the crack or leak.
12th Feb 2017 3:30 pm
Madmedic112
Member Since: 24 Aug 2014
Location: Kent
Posts: 371
Ditto to what Tuna said! Belts, done
Lower arms, done
V8 front brakes, done
Gearbox flush, done
Steering arm, done
Tyres all round, done
EGR's, done
EHB, done
re-map, done
Air con re-gas, done
and so on, and so on, and so on!!!
12th Feb 2017 3:34 pm
KostasA
Member Since: 23 Aug 2015
Location: nairobi
Posts: 286
there are couple of things you an do. get an after market coolant cap, drill a hole and fit a tyre valve. with a hand pump (one with gage usually sold at bicycle stores) put same air in to the system 1 - 1.2 bar. this is how you pressurize the system and watch for leakages. at this pressure you will have a small get of water so it will be visible.
Second check is to see the coolant cap, is the sealant rubber ok? does it makes the click sound when locked.
third and most difficult, loss of coolant from the egr coolants. Start the car, go under (remove the seal) and observe with a torch for any loss of coolant. alternative when car is relative warm put your hand on the under side of the egr coolant and check for green markings.
12th Feb 2017 4:53 pm
titters
Member Since: 27 Apr 2013
Location: london
Posts: 419
mine was leaking from the water pump - only when I shone a led torch in there could you see the occasional sparkle of tiny droplets - there was no leak stain...2006 TDV6 HSE Wrapped Matt Black STOLEN NOT RECOVERED
12th Feb 2017 7:52 pm
PeterHorten
Member Since: 20 Aug 2013
Location: Innsbruck
Posts: 17
It was the distributor between the banks. Had a crack.
I did it myself and enjoyed it. Massive oil mud in the intake system, all coming from EGR.
11th Mar 2017 3:43 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72787
Sounds like what happened to anglefire's in Andorra last year. Was interesting, to say the least, as happened 8,000ft up a mountain in the middle of a thunder storm. I have a vid clip, if af's OK with that.
All good DelMark.
2006, D3 SE Auto - gone but not forgotten.
2014 BMW 530d M Sport Tourer.
1977 Triumph Spitfire 1500
_________________________________________________
Disco Picture Website Here
11th Mar 2017 5:06 pm
PeterHorten
Member Since: 20 Aug 2013
Location: Innsbruck
Posts: 17
Two comments:
O rings are included within the the new distributor, no need to buy them separately
I asked myself if the o ring of the cooler, visible a little behind, should be changed.
But there is no separate part, so I left (or let??) it in place.
11th Mar 2017 5:08 pm
DSL Keeper of the wheelie bin
Member Since: 11 May 2006
Location: Off again! :-)
Posts: 72787
At that was when the weather was quite good! It thundered, lightening, hail and snow during the double recovery back down the hill
Lost 8ltrs of water when it split. Normally when they go, it's just a small leak that you can't pin down.
But well worth a check as it's simple to do and you should see a tell tale. Mark.
2006, D3 SE Auto - gone but not forgotten.
2014 BMW 530d M Sport Tourer.
1977 Triumph Spitfire 1500
_________________________________________________
Disco Picture Website Here
11th Mar 2017 7:06 pm
PeterHorten
Member Since: 20 Aug 2013
Location: Innsbruck
Posts: 17
At the end, I will deal with this!!!!
I have changed this plastic coolant distributor, now for the third time, because LR delivered corrupt ones, still not sure if this one is ok.
Secondly, I changed precautionarily the thermostat.
Thirdly, I am changing the left side EGR cooler right now. It was leaking, the EGR valve was wet and the coolant drops into the turbo, therefore I had smoke visible
16th Sep 2017 9:20 pm
Cresco750
Member Since: 20 Sep 2016
Location: Auckland, NZ
Posts: 29
A few weeks ago I too was loosing a small amount of coolant. I had a chat to a local LR specialist and they told me that the D3's are becoming of the age where the hoses are starting fail and become porous Sure enough, it turned out to be the EGR cooler hose. I already had the EGR blanked off, so it was a fairly easy job for them to bypass the EGR all together with a new piece of hose (apparently, to replace the EGR hose with an original meant removing a fair bit from the front end / engine bay to get access?).2016 LR4 SDV6 HSE
SOLD: 2005 2.7 TDV6 HSE Auto
17th Sep 2017 8:16 am
Pete K
Member Since: 15 Jan 2016
Location: GL
Posts: 10365
I would be interested to know how they did this?
And it's your engine temperature gauge still reading the same as before ?
17th Sep 2017 10:00 am
Cresco750
Member Since: 20 Sep 2016
Location: Auckland, NZ
Posts: 29
I'm not too sure how they did it, exactly but they did comment that it was still quite tight to get the hose in there. I'll have a look tomorrow and see if I can see where they've connected the plumbing.
No change to the operating temperature observed, and I've just got back from a 900km trip.2016 LR4 SDV6 HSE
SOLD: 2005 2.7 TDV6 HSE Auto
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