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davidblythe



Member Since: 27 Apr 2019
Location: sutton
Posts: 41

United Kingdom 
TD5 Coolant change

As I continue on my path of becoming a car mechanic, the next thing after all the oils being changed and a brake fluid change is to change the coolant.

Can anyone tell me the best place to empty the coolant from, Haynes manual didnt make much sense to me

Final question is it worth change the clutch fluid too ?

Thanks in advance

Post #840753 30th Jun 2020 7:03pm
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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 155

United Kingdom 2004 Defender 90 Td5 CSW Santorini Black

I think the easiest thing to do is to just pull off the bottom hose on the radiator.

If the clutch fluid is black, rather than clean, you might as well. 2004 Td5 90
2012 TDCi 110
1958 Series 2 88

Instagram: @BaronDefenders

Post #840755 30th Jun 2020 7:12pm
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QuintinC



Member Since: 06 Apr 2019
Location: Knysna
Posts: 18

South Africa 2003 Defender 90 Td5 SW Alpine White

The manual suggests loosening a drain plug on the lower hose. I have been told that these plastic plugs perish, so it may be better to remove the lower radiator hose. This may require the removal of the inlet pipe between the intercooler (outlet side) and intake manifold to gain access, but perhaps not - see how you go.

It's a messy business, have a large basin ready as the coolant splashes onto your steering arms and rods and then all over the place. While the system Capacity is 13 litres, I doubt that you would be able to drain out more than about 7 litres. Similarly, that is probably all you will be able to put back in when you top it up. Do a bit of reading up to ensure you use acceptable coolant. LR specifies Ethylene Glycol based antifreeze with only organic acid technology corrosion inhibitors. You should also not mix antifreezes, a bit difficult when you are unable to drain the full 13 litre capacity.

The ratio is 50% antifreeze and 50% water, but again, do your research. Some of these antifreeze products are sold as a 50/50 mix (Holts here in South Africa is an example that is already 50/50 out of the bottle). So take care to find out as much about the product as you can. You don't want to dilute something that is already diluted.

Not as simple as it sounds unfortunately.

Post #840780 30th Jun 2020 8:45pm
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dorsetsmith



Member Since: 30 Oct 2011
Location: South West
Posts: 3830

drain plug on the lower hose. is dependent build age

to 4A drain plug on the lower hose post 4A no drain plug on the lower hose

Post #840783 30th Jun 2020 8:57pm
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srod



Member Since: 20 Mar 2015
Location: Argyll
Posts: 181

Is there not another drain plug on the engine, behind the alternator, that requires removal of alternator to access. This will allow you to drain the full 13 litres.

I'd say only worth doing if you are going to do the lot, no point just replacing half surely?

Post #840851 1st Jul 2020 7:25am
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QuintinC



Member Since: 06 Apr 2019
Location: Knysna
Posts: 18

South Africa 2003 Defender 90 Td5 SW Alpine White

Agree completely, would have been nice to have a simple robust drain that could be opened without having to disturb anything else in order to get the entire 13 litres out.

Post #840855 1st Jul 2020 7:37am
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BaronDefenders



Member Since: 28 Jun 2019
Location: London/Cotswolds
Posts: 155

United Kingdom 2004 Defender 90 Td5 CSW Santorini Black

If you had the time and patience, you could flush the system to get all 13L out. Have a look on YouTube for some good guides. 2004 Td5 90
2012 TDCi 110
1958 Series 2 88

Instagram: @BaronDefenders

Post #840888 1st Jul 2020 8:32am
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excossack



Member Since: 22 Feb 2012
Location: North West
Posts: 4474

United Kingdom 1999 Defender 110 Td5 SW Caledonian Blue

I just remove the radiator bottom hose and give it a flush. 1999 Defender TD5 110

Regards
John M0VAZ
Econet Station 48 no clock

Post #840898 1st Jul 2020 8:45am
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