st170 coolant change

[roboboyo]

Am getting ready to do a coolant change on my st170 2003.

 

I know this is an easy job, but i just want some advise on do's and dont's, last thing i want is a cracked head, or air in the system,

 

can sombody give me a guide, also, im not going to bother with rad flush, and im using the blue anti freeze

[JOHNDQ]

Don't use blue you will want the red long life stuff and don't mix the coolant will turn a purple colour. Shouldn't have any problems just do it with a cold engine and run it up to temp with the cap off to let air out, then put cap on and go for little drive and check fan kicks then let it cool down and recheck the level