hi everyone, first post, wondered if any ideas on the below??

i have a 1L ecoboost  64 plate fiesta, which i have owned for around 10 months.

went to change a headlight a week or so ago after a 10 mile journey and noticed my water coolant  bubbling in the reservoir? (not as bad as a boiled kettle but definately bubbling)

did the same 10 mile journey today 3 times and this is what happened checking my car as soon as completing the journey

1st time my coolant was bubbling

2nd time it wasnt bubbling, BUT i had the air con on for a around 5 mins of the journey till it was cool inside the car

3rd time if i remember rightly when i arrived and stopped it was bubbling till i turned my air con on for 30 seconds then it stopped

since noticing this a week or so ago, there are no lights on my dash that shouldnt be there, the temperature gauge is normal how its always been (gradually builds up to halfway, 4 dashes)  havent had to top up my coolant level, my oil is black, my radiator fan kicks in when tested by starting my engine and just leaving the car stationary to get hot,  my radiator fan also kicks in straight away when turning AC on and turns off around 30 seconds after turning AC off (i believe that is normal?)

i dont know to much about cars apart from my very first car, a G reg ford escort used to overheat terrible.     ive always thought that bubbling coolant was a car overheating or is this normal now on some new(ish) cars?  this could have been happening for a lot longer than i have known its only because i went to change a bulb ive noticed it,

is it running normal or???

 

All normal apparently mines same.

Yes it's normal but I don't believe it's anything to worry about and just where the coolant is being pumped around 👍🏻

cheers guys, if yours are the same ill take it as normal running then,  just what i wanted someone say , thanks

I think you'll find that, even after the engine has stopped, the coolant is still pumped around the turbo.