Coolant Change And Bleed Guide?

[ATK 142 1 Cars]

Figured i would do a coolant change, any guides?

 

Bottom rad hose or drain plug off, hose in expansion tank to flush then refill via expansion tank?

 

How about bleeding?

[TAG 25 1 Cars]

Don't forget to put the drain plug back in first

 

There should be two bleed valves, one near the thermostat, and one on the top hose going to the heater matrix.

Open these up and fill with a 50/50 mix of coolant and water into the expansion tank.

Once coolant starts coming out of the thermostat bleed, close it up, likewise with the heater matrix bleed.

I normally run it for a bit with the expansion tank cap off and look for any bubbles coming up.

I then run it for a little bit and check the expansion tank level every few days to check theres enough in there.

That method has always worked for me.

[dawning 11]

To flush you first need to remove the thermostat from its housing I think.

[welshpug 1,657]

I always pop a 3mm hole in the top edge of the thermostat just in fro the seal, aid bleeding significantly, never any need to top up since doing this as they fill up nicely.

[ATK 142 1 Cars]

Drill a hole in the thermostat? Really? Any need if bleed screws work ok?

[welshpug 1,657]

yes, its a Peugeot citroen sport mod.