Engine fan is working fine. Radiator fans should be okay too, but since radiator isn't getting hot, I'm guessing the radiator fans aren't coming on either...
Water pump is prob the next logical place to look. But I'm dropping of the car tomorrow morning at IDB. This week was supposed to be my study break to catch up on uni 

Coolant is going into the engine and pipes and heater core, but not the radiator :/ but it was when I had the no name thermostat in it, ironically...
So what happens if the jiggle valve isn't positioned in the top centre? Just curious of the consequence, don't worry I installed it in correct

You do realise the entry and exit into the radiator is on the top and the coolant pipes are doing a climb to get from under the car to the top of the radiator. So you need to keep that I'm mind when filling the coolant in. What I do is fill the coolant with the car flat.then when its full up to the coolant filler I raise the rear end so coolant can get into the radiator easier, drop it back flat and by then I can add heaps more coolant, keep repeating until it well not take any more. Then stats the landfill slow process of topping the rest up. Try that and see what happens , make sure you empty it properly first to get the right amount backin.
Good luck.

You dont need to raise the car.  Have the two bleed points open with hoses up and fill slowly until the coolant level in he radiator bleed hose, the heater box bleed hose and the coolant filler neck are level.  Recheck after running the car and add coolant if required.  This is the only way (that I know of) of ensuring and checking the system is full.  Make sure heater is set to hot.
 
Never had any dramas following this process.
 
Cheers

You can attach a couple of clear plastic hoses to the bleed pipes and then hang them up in the frunk. That way you don't have to park the car at an awkward angle. If much coolant blows out the top, there has to be some internal pressure that is driving the coolant, if for example the top of the hose has a static height of 30-40cm higher than the filler neck at the back of the car. It actually a good way to determine if there is either air in the system or the dreaded bhg. 

raising the rear end is only to fasten the process, it doesnt do anythign else. you dont HAVE to do it just another way,  i have found that when raising the rear end and squeezing the radiator hose just under the radiator cap (the S bend one) the coolant seems to drop in level faster, then i lower it back down and pour in more
its much faster than waiting for the coolant to slowly drop in level then keep adding small amounts.

Ahh I see. Good tip raising the rear.

Cheers

Not putting the jiggle valve at the top would hinder the air getting out when you refill, and may even mean some air is trapped in the thermo housing.
 
Although the book says the system is supposed to hold 14 liters, with my car (3SGE) I can only ever drain out about 9 liters.
I assume the overflow bottle may hold a couple of liters, and that would be included in the 14 liters capacity.
Also in my motor, I have no block drain tap, so some coolant would stay in the block.
 
BTW, raising the rear  with car ramps is great if you want to change a thermostat, because you then only have to drain out about 2-3 liters from the radiator tap and catch it in a plastic dish.
That lowers the level so nothing runs out of the thermo housing when you crack it.
 
The drained coolant can then be  poured  it back in later with the car still raised and you shouldn't have to re-bleed the system.

Hey, just reading through your full thread, so is coolant actually reaching your radiator now? Does it get hot at all?
If you know which ones your collant lines are you could touch and see where its hot and where its not to help identify the blackage if there is one. I know there are two metal lines that run above the fuel tank from the back to the front of the car, see if the sides going in and out both get hot.

Hey mate the car's been at the mechanic since Thursday. So far he said the thermostat is opening very late - only after 15-25 mins of the engine being turned on so something else might be causing that eg lack of coolant to pressurise. Compression test is good so I think my HG might be okay.
I was supposed to get a call on Saturday morning assuming everything went well but it's Monday morning now which means they may have encountered the same symptoms as me and trying to work it out. In a way this is nice to here (more correctly: presume, lol) as I'm quite confident in my drain/refill/bleed procedures (without sounding arrogant here)