Sammyebby

Overheats under pressure temp needle is up and down and heaters go cold.

Started with a leaking water pump replaced that and it still happened under pressure.

Replaced numerous parts still the same overheating.

Only bled the coolant with screw on top of the engine could this be the problem needing to be bled with the proper bleeding kit or could it be something more?

Any help Is much appreciated 

Overheats under pressure temp needle is up and down and heaters go cold.

Started with a leaking water pump replaced that and it still happened under pressure.

Replaced numerous parts still the same overheating.

Only bled the coolant with screw on top of the engine could this be the problem needing to be bled with the proper bleeding kit or could it be something more?

Any help Is much appreciated 

Hi just wondering if anybody can tell me how to bleed a 2012 3.0 audi q7.

I'm using the bleed screw on the top of engine is there anymore bleed ports. 

Really struggling with this

Thanks