bleeding the cooling system on a crossflow

[stevepeanut]

can someone tell me how to do it?

 

cheers

[PAUL MANN]

fill with coolant & water mix start car & fill then replace cap to pressurize up pu heater to warm to allow wate around heater matrix check level when engin cold as it will pressurizes & cover you in hot water

[stevepeanut]

thats near enough what I did, but I have no idea if I have any tapped air in the system

[Takeshi]

If your car isn't overheating and your heaters working ok, I'd say your done

[Anglia68]

I always jack up the front of the car so that the rad cap is the highest part of the coolant system and turn the heater onto it's hottest setting and then fill it up with water/coolant.

I then run the engine with the rad cap off until the thermostat opens and you can see the water rushing through the rad.The water level will usually drop quite a bit so I top it up and then replace the cap.

Having the rad cap as the highest point means that if there is going to be any air in the system then it will rise to this point and be released.

Never had any problems doing like this.HTH.

[Fishtailparka]

It shouldn't make any difference if the heater is on hot or cold. The controls work a vent flap, not a tap.

[Tom]

but having the heater on hot is a very, very good indicator if you've got coolant flow and/or an air lock.

 

as previously said run up with the cap off until the stat opens (the coolant will flow and the bottom hose will be hot) replace the cap, give it a run, let it cool down and re check the level