many people will say its 4 litres but i suspect they had not drained the whole system completely.
i needed 5 when i drained mine properly.
G12 comes in 1.5 litres bottles now, (at least the ones i brough 2 weeks ago were)
Which you then mix 50;50 so you need two of them which would mean you could make up to 6 litres.
if you didnt know the drain for the coolant is at the nearside bottom of the radiator. A nice tap has been fitted so undoing of jubilee clips or anything is not needed.
Not easy to get to as the underside of bumper restricts access.
