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Coolant change GTV 2.0TS ph1

I am about to change the coolant in my -97 GTV 2.0TS. The workshop manual states the capacity to 8.4 litres, but when I drain the coolant by removing the lower hose to the engine cooler (according to the workshop manual) I only drain about 4 litres.

So how do I do to completely change the coolant? My plan is to flush the system with fresh water with the cooler hose removed, then I would have system half full of pure water. If I then add 4 litres of concentrated coolant I would get a proper 50/50 mixture.

Is there a better way to do this?
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i dont think you can..................... i think the vacume holds it in when the engine is off and its about 3 litre thats trapped everywhere
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I am a bit confused here.

If you have removed the bottom hose, opened the heater controls and removed the filler cap from the expansion tank then there is no "vacuum" in the system and all of the coolant should drain out.

I am happy to be proved wrong.
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The way you have described is the way that we did, (with concentrate). As Brad says, the engine block holds a lot of fluid - probably about 4 litres.

Also there will be some coolant in the heater matrix.

Muz and I replaced ours at the same time, while putting new thermostats on. In both cases we flushed out the old stuff by sticking a hose in the inlet at the top of the radiator - it then worked its way through the radiator, into the block and out through the thermostat hole - I flushed mine until the water was clear (although it was still warm!) - I think we did it in reverse as well. I mentioned the heater matrix earlier, we took the opportunity to flush that through as well.

The thread that we contributed to may help, it is here:

Last edited by Starkers; 16-07-12 at 20:45. Reason: Added line about concentrate.
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Yeh a lot of water will sit in the places where it does not naturally drain out of the bottom of the radiator

i.e. water tube that goes down to the oil cooler etc
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Park nose down on a 45 degree hill, you`ll get a bit more out

As you say the only way to ensure the correct ratio is to flush the block then add ~4L of neat coolant, then top up with water.
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Thanks for all answers!
It seems like my first plan is the best way to do it, so I'll stick to that!
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