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RF3777



Member Since: 10 Apr 2015
Location: Hong Kong
Posts: 144
Hong Kong 2003 Defender 110 Td5 USW Corris Grey
TD5 Leaking coolant a lot
My tD5 leaking lots of coolant, engine temp goes up to 115C, car still can run, from top of engine can't see anything leaking, even the core plug area is dry, look from the bottom of the car, can see leaking like hell, fuel cooler is fine too, the radiator and hose all seems fine, the leak is from the rear bottom side of the engine I think, what it could be???
please help! Bow down Bow down Bow down
https://youtu.be/jt9j4k6FwXQ
Post #739777 11th Nov 2018 5:29am
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RF3777



Member Since: 10 Apr 2015
Location: Hong Kong
Posts: 144
Hong Kong 2003 Defender 110 Td5 USW Corris Grey
It makes some steam sound after driving!
https://youtu.be/10n4cKW_8HI
Post #739778 11th Nov 2018 5:31am
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gazman



Member Since: 17 Aug 2015
Location: Liverpool
Posts: 652
United Kingdom 2003 Defender 90 Td5 HT Alpine White
I wouldn't drive till I found that!

I would start by checking all hoses. I had one that rubbed through on the chassis leg. It ran down the chassis and was about a foot away from the hole.
I found it by moving each hose at a time.
Check the heater matrix and the hoses fo/from it incase it's running off the bulkhead. When mine failed I could smell coolant with the fan on 2014 - current ..... 2003 defender td5 90 (my car)
2009 - current .... 2005 zx10r
Post #739796 11th Nov 2018 10:50am
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landy andy



Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5417
2006 Defender 110 Td5 USW Zermatt Silver
As above check all the hoses. Get the plastic cover off the engine and have a good play with all the hoses. Check your heater matrix and supply hoses too.
Post #739803 11th Nov 2018 11:04am
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4RF RDS



Member Since: 19 Jul 2015
Location: Ottawa
Posts: 898
Canada 2000 Defender 110 Td5 XS CSW Epsom Green
The water pump can often be tricky to see if it is leaking spend some time around that area and check the path of the drips.

Also as stated don’t drive it till you find and fix it. 2010 Range Rover MkIII Autobiography Super Charged (Idris)
2003 Range Rover Mk III (Desmond FitzWilliam)
2000 Defender 110 CSW TD5 (CTX)
1992 Range Rover Classic (Lizzy)
1972 Series III 300 Tdi (Stanwood)
1967 MGB GT

Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin to slit throats.
H. L. Mencken (1880 - 1956)
Post #739895 11th Nov 2018 6:40pm
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RF3777



Member Since: 10 Apr 2015
Location: Hong Kong
Posts: 144
Hong Kong 2003 Defender 110 Td5 USW Corris Grey

Click image to enlarge
Thanks everyone, I think I found where it leak, but I dont know what it is? head gasket?
need to look from under the fuel cooler, I think in the engine block itself!

Please have a look of the youtube video I took!
when I pour fluid from the expansion tank, water started leaking out, and the heater got no hot air the last time I drove the car.

https://youtu.be/ZnQvbPVz1wE

https://youtu.be/Wtl9zZRnFdw
Post #739974 12th Nov 2018 5:18am
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784
United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
When I replaced the head on my Td5, I found that when I removed the EGR cooler return pipe it had gone brittle like spaghetti. It wasn't leaking before I removed it but it definitely would have done at some point. Worth a look Thumbs Up

P.S. it's the one that runs along the lower edge of the engine cover and is clipped to it 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
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Post #739982 12th Nov 2018 8:58am
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 4554
Check the fuel cooler round ones been none to leak


http://www.discovery2.co.uk/fuelcooler.html
Post #739983 12th Nov 2018 9:41am
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RF3777



Member Since: 10 Apr 2015
Location: Hong Kong
Posts: 144
Hong Kong 2003 Defender 110 Td5 USW Corris Grey
Fuel cooler is fine!
Post #739996 12th Nov 2018 10:32am
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RF3777



Member Since: 10 Apr 2015
Location: Hong Kong
Posts: 144
Hong Kong 2003 Defender 110 Td5 USW Corris Grey
grafty99 wrote:
When I replaced the head on my Td5, I found that when I removed the EGR cooler return pipe it had gone brittle like spaghetti. It wasn't leaking before I removed it but it definitely would have done at some point. Worth a look Thumbs Up

P.S. it's the one that runs along the lower edge of the engine cover and is clipped to it


Do you mean the fuel cooler?
Post #739997 12th Nov 2018 10:33am
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784
United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
No, the EGR cooler on the front of the block if yours is an EU3 spec engine Thumbs Up 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #740147 12th Nov 2018 9:28pm
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rallysteve



Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2199
United Kingdom 2002 Defender 110 Td5 DCPU Keswick Green
In HK its probably a ROW TD5 without EGR 02' 110 TD5 Double Cab Rebuild Thread
84' 90 3.9 V8 Caged Pickup Build Thread - Now For Sale


Mobile Diesel Heater Build Thread
Post #740171 12th Nov 2018 10:14pm
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RF3777



Member Since: 10 Apr 2015
Location: Hong Kong
Posts: 144
Hong Kong 2003 Defender 110 Td5 USW Corris Grey
grafty99 wrote:
No, the EGR cooler on the front of the block if yours is an EU3 spec engine Thumbs Up


My TD5 doesn't have EGR cooler...
Post #740215 13th Nov 2018 2:05am
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grafty99



Member Since: 15 Aug 2012
Location: North Devon
Posts: 4784
United Kingdom 2002 Defender 90 Td5 HT Caledonian Blue
One less thing to leak then Laughing

Another place to look is the junction where the header tank, heater return pipe, fuel cooler take off and top hose return all meet. It's directly below the header tank Thumbs Up 2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
Tdi 110 Thread https://www.defender2.net/forum/topic69562.html
RRC Thread http://www.defender2.net/forum/topic54492.html
Instagram http://www.instagram.com/george_grafton
Post #740227 13th Nov 2018 8:39am
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RF3777



Member Since: 10 Apr 2015
Location: Hong Kong
Posts: 144
Hong Kong 2003 Defender 110 Td5 USW Corris Grey
Its the timing front cover leaking, you better check yours!
Post #740435 14th Nov 2018 3:22am
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