overheating 206

[mcflurreh]

Hi guys and thanks for the website

I have a problem with overheating and I hope for some help

My 206 is is a w reg (2000)
Just out of the blue it started. It's been in the garage to have a couple things replaces including radiator and thermostat! But still it's overheating.

It's perfect when idle but as soon as I got 50mph it moved up above 90. Once I hit 70 mph it's nearly touching the red but as soon as I slow down the temperature drops also. I'm stumped tbh.

I've spoke to many mechanics and most have provided different answers

The car has also had a 'sniff test' done. But that came back clear.

Please, please any help welcome. And please any questions then just ask

[citronut]

hi and welcome

first thing i would do is make sure the cooling system is thoroughly bled of any trapped air,

secondly if the year/model has a header tank i would make sure the spout on the tank that the rad bypass hose goes to is clear,

as it only has a very small through way inside the spout it can fur up, this stops you being able to bleed the system properly

were are you located

[addo]

By sniff test, do you mean coolant in the exhaust?

I'm guessing this is a 1.4 petrol.