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Joel

Member Since: 18 Oct 2020
Location: Rotherham
Posts: 76

2002 Defender 110 Td5 DCPU Santorini Black

Coolant flush and Hose replacement

My TD5 seems to have baby diarrhoea coolant.

I’m going to drain and flush the system.

I plan to change the hoses as well, but what else is likely to need changing as well? Don’t want to get in there and find other stuff needs doing.

Which hoses do people recommend? OEM or silicone?

Thanks in advance.

21st Nov 2020 6:08pm

Vogler

Member Since: 02 Nov 2014
Location: Brussels
Posts: 309

I can't answer your question, but while you're at it you also might want to replace this short hose between the heater circuit and the oil cooler. It sits just below the turbo:

Click image to enlarge

Part no for MY05 15p Td5 is PBH101980. One doesn't read often about it, but apparently it is not uncommon for it to burst since it suffers from the turbo heat. I encountered a Td5 with the issue when on holiday two years ago.

I'm not that knowledgeable, but 'baby diarrhoea' sounds like a problem with oil mixing with coolant. That won't be solved just by flushing and replacing the hoses I'm afraid, and having mentioned the oil cooler above: it might just be the culprit (the cooler, not the hose). I hope for you that I'm wrong.

Joris Antares Treadwell, a MY06 110 Td5 in Chawton White

21st Nov 2020 8:15pm

AT1963

Member Since: 08 Jul 2020
Location: Leicestershire
Posts: 148

2006 Defender 90 Td5 Black LE Java Black

Had mine done in 2018 along with lots of other stuff. Had all hoses (heating and coolant) replaced with genuine and also had the thermostat changed along with the coolant reservoir for good measure.
I'm mot convinced about silicone so left well alone.

22nd Nov 2020 3:38pm

Ashbyandy

Member Since: 17 Dec 2015
Location: Leicestershire
Posts: 223

2015 Defender 110 Puma 2.2 Adventure Phoenix Orange

Hi Joel,

Replace the thermostat. I did one the other day for a Td5 customer at the local LR Indi garage, and it was full of gunge and rusty water. Easy to do, just 3 hose clips, 👍

Ashby Andy

22nd Nov 2020 4:57pm

Joel

Member Since: 18 Oct 2020
Location: Rotherham
Posts: 76

Thanks all,

Slowy building up a list of bits so I can do it.

27th Nov 2020 6:55pm

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