Coolant change

[watsonb01]

Hi. A newbie to forum.

The coolant in my 70 plate Corsa 1.2 Elite Nav is a bit of a strange colour, brown but no sludge or anything. No problems with car as such and oil and coolant levels ok.

Expected it to be a reddish colour so would probably rather do a full drain and fill.

Does anyone have any videos or tutorials on how to change the cooolant or know where the drain plug is located. i assume it will be a fairly straight forward job.

Thanks