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MattyEssex

Member Since: 23 Jul 2021
Location: Essex
Posts: 77

2010 Defender 110 Puma 2.4 XS CSW Indus Silver

Coolant Leak….

Noticed under the car this morning a round wet patch, now whilst this is nothing unusual with leaks this one was quite large - I put a piece of cardboard to see the extent and when returned hour later saw that it was coolant and not oil as first suspected.

Cannot see any visible leaks it is coming down behind the n/s wheel. Topped the coolest back up as was low.

Any ideas, cracked hose somewhere behind engine etc?

Click image to enlarge

22nd Jun 2023 12:26pm

BaronDefenders

Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 896

2004 Defender 90 Td5 CSW Santorini Black

Further photographs are required, from above and below, to have a go at saying where the coolant originated.

It could be a core plug, a leaking hose, a split heater matrix, or the water pump. Essentially, it’s impossible to say from just a pool underneath as fluids don’t always hit the ground directly below the point from which they leak. Charlie

1949 Series 1 80 (SOLD)
2002 Td5 90 (SOLD)
2008 Freelander 2 (SOLD)

1958 Series 2 88 Pastel Green (2019 LR Legends Best Restored)
1983 V8 110 Limestone (Previously owned by Tom Sheppard MBE)
2004 Td5 90 Santorini Black (Td5INSIDE Powered & Rebuilt by CSK)
2012 Puma 110 Zermatt Silver (Overlanding Build)

Instagram: @BaronDefenders

22nd Jun 2023 12:37pm

landy andy

Member Since: 15 Feb 2009
Location: Ware, Herts
Posts: 5699

2006 Defender 110 Td5 USW Zermatt Silver

You sure it’s not condensation from A/C?

22nd Jun 2023 12:41pm

MattyEssex

Member Since: 23 Jul 2021
Location: Essex
Posts: 77

Andy no it’s def red fluid cannot see anything visible from pipes etc

22nd Jun 2023 12:48pm

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

Which engine do you have? What does the fluid feel like, is it oily or watery or sticky?

22nd Jun 2023 1:37pm

MattyEssex

Member Since: 23 Jul 2021
Location: Essex
Posts: 77

It’s the 2.4 Puma, it’s watery issue is I can’t get in to have a look, will try later from getting under it to take a look.

Click image to enlarge

22nd Jun 2023 1:42pm

geobloke

Member Since: 06 Nov 2012
Location: Nottinghamshire
Posts: 4410

So being that it is watery and you have a RHD I am going to say something to do with the heater box, AC, hoses or matrix. Get up above the heater box with a decent pen torch and see if you can find the tracks of water. If there is nothing apparent externally then it might be more matrix/core related.

Do you have AC?

22nd Jun 2023 1:52pm

MK

Member Since: 28 Aug 2008
Location: Santiago
Posts: 2415

2007 Defender 110 Puma 2.4 SW Chawton White

Fuel cooler or oil cooler. Both easy to spot from underneath. Puma 110" SW

.............................................................
Earth first. Other planets later

22nd Jun 2023 2:00pm

hank

Member Since: 12 Sep 2016
Location: South Wales
Posts: 2299

2007 Defender 110 Puma 2.4 DCPU Stornoway Grey

Check the heater valve. These can fail and leak > 110 XS Double Cab

22nd Jun 2023 4:04pm

MattyEssex

Member Since: 23 Jul 2021
Location: Essex
Posts: 77

geobloke wrote:
So being that it is watery and you have a RHD I am going to say something to do with the heater box, AC, hoses or matrix. Get up above the heater box with a decent pen torch and see if you can find the tracks of water. If there is nothing apparent externally then it might be more matrix/core related.

Do you have AC?

Ok will check all around tomorrow, yes it does has AC

22nd Jun 2023 6:28pm

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