How to change coolant?

9nine0

9nine0

The Workshop Manual shows an SD for the purpose of filling, but
illustrates an Adventure for draining! The drain plug on the
water pump and on the radiator are not present on my 05 SD so
what is the procedure for draining - does it involve the removal
of the pipe from the water pump housing? Must this be done
when the thermostat is open and if not, how does one drain the
radiator? Any help appreciated.