Hi thanks for the reply. I managed to find a post on here and it went into great detail about coolant. It basically said you should know in advance the coolant you are using and that there is usually a label telling you what kind to use on your coolant resevoir. Long story short mine doesn't have one

soo i'm gonna play safe and super flush the system (there's a great video on youtube on how to do this)
https://youtu.be/s--5ft5YiHg. That way there's no chance of gelling
Add coolant flush, drive 200 miles or so to let the agent work, remove fluid, remove thermostat (optional) probably wont need to do that with the 2.0 as she warmsup nicely, add water to radiator and resevoir and more coolant flush agent, warm engine(drive around a bit) with heater on to clean the heater matrix too, remove fluid and repeat with just water until it comes out clean then which may be 2-4 times (with the advice from the forum) find a g12+ coolant 50:50 mix and fill to desired levels.
Not sure how much coolant goes in the 2.0 but i will have a fairly good idea after the first flush or 2.
To be honest the video in the link was very good and detailed everything very well, however, he said to use distilled water to do this but i think i will use demineralised water as distilled water is slightly acidic and could cause the internal cooling system to corrode more quickly.
So when i return from scotland to france, i will change .... timing belt and water pump, with gaskets pulley and tensioner, both accessory belts and that bloody ac pulley, the rocker gasket along with the inlet gasket, all filters, engine oil, coolant super flush (will do that first step prior to all work) gearbox oil, gearbox sump and filter clean (filter with petrol), spark plugs, diff oil, brake oil purge and i think for good measure i will change the thermostat while doing the coolant (although mine works)
be honest i cant wait to get stuck in but i need the bloody weather to change and hopefully around the beginning to middle of april.
