Time required :
36 mins
Parts Needed
Mandatory:
New thermostat

Gasket sealant

Flat screwdriver

Spanner size 13
Optional:
New antifreeze 3 litres
Distiled water 3 litres
Circlips
As per autodata hgt uses a total of 6 litres coolant mixed with distilled water ratio 50% / 50%