Flushing Coolant System - Residual Water

[SharpyClio]

Hi All,

Bit of a random one this, I have a small leak from one of the hoses and they are all looking pretty tired to be honest so I have new silicone hoses and clamps coming this week.

The question I have is that I intend to flush the rad and the block with water to clear all the old coolant out, once I have done this do I need to them somehow clear the water out so as not to contaminate the new coolant or do you just accept a small amount of contamination?

Cheers

 

[Krarl]

Take the rad out, blow the heater matrix out by connecting one of the hoses and get your lungs out 😂

I flushed mine with water and then flushed with coolant until it ran through green

 

[SharpyClio]

I was wondering if I could blow it out using the compressor but didn’t think that was super smart. 🤣

 

[Krarl]

I was wondering if I could blow it out using the compressor but didn’t think that was super smart. 🤣

Nah I blew mine through with a bit of lung and it was fine, got most of it out

 

[SharpyClio]

That’ll do me… might get some lovely residual bitrex flavour as well.

 

[Mr Underhill]

I've never blown any of the residual water out of mine and I've done it over 10 times easily 😲 Maybe i should of, but never had an issue.

I Just followed the manual.

 

[SharpyClio]

I've never blown any of the residual water out of mine and I've done it over 10 times easily 😲 Maybe i should of, but never had an issue.

I Just followed the manual.

View attachment 1627900

Thank Jon, That makes sense. I guess there isn't loads of water left and if I fill it until the coolant starts coming out then it should be pretty much all good.

 

[Brigsy]

As above give it a blowjob. Usually loads of extra shite comes out of the matrix, rad and block when you do it so its worth doing. It also doesnt matter if you dont get all of the water out with normal coolant. Only need it fully drained if using fancy stuff.

 

[Louis]

I just used a bit of old hose connected to the matrix and poured fresh green coolant through after flushing.

 

[SharpyClio]

As above give it a blowjob. Usually loads of extra shite comes out of the matrix, rad and block when you do it so its worth doing. It also doesnt matter if you dont get all of the water out with normal coolant. Only need it fully drained if using fancy stuff.

Using Type D coolant - is that fancy?!

 

[Brigsy]

From experience on the clios and megs, when you open the thermostat housing bleed bolt you can watch the water turn from clear to green when bleeding, so you know exactly when most of the water is out. Just keep topping the header tank up whilst bleed is open until its pissing a nice stream of green.

 

[Brigsy]

Using Type D coolant - is that fancy?!

Type d is ok that mixes with water no problem. Its them waterless coolants that require more prep, chances of ever needing to run them in a clio are pretty slim though.

 

[SharpyClio]

Sounds good to me, Om ordering 7L but might get a bit more just in case.

 

[Brigsy]

7 is plenty. Its good to have a bit to top up with as level drops when stat opens.

 

[16v_paddy]

Using Type D coolant - is that fancy?!

It is to people that use this stuff

 

[SharpyClio]

It is to people that use this stuff

View attachment 1628225

Is that just p*ss?

 

[16v_paddy]

 

[SharpyClio]

But…

 

[Chocice]

It is to people that use this stuff

View attachment 1628225

What? But why?