Coolant change on modern

[backtothe80s]

Please delete if necessary, its related to a modern. Never worked on them before

My 100k coolant change interval is due. There's no radiator cap just the header tank. It it a simple case of drain coolant via drain key, fill and burp via the header tank?

Any tips? From what I can gather it's a self bleeding system

Toyota auris 1.6 valvematic

[stealthstylz]

Check on Google make sure there aren't any other bleed points, if not drain the system, then fill up with heater on max heat and run without the cap on till the thermostat opens and top up as necessary.

[ChasR]

What he said.

Another thing I'd do is to buy some proper coolant. Either genuine Toyota, or a good substitute, from the likes of Comma, and their Glytasyn range.|

Many of the non-named ranges I've seen tend to have poor inhibitors, resulting in silt forming in mixed metal engines, or general corrosion of the cooling system, albeit not quite as bad as if it were straight water, but not as good as a proper coolant, which does keep corrosion at bay.

[droopsnoot]

And make sure you use the right coolant - the stuff that goes in my "modern" (2000) TT is different to the stuff I put in the Vauxhalls, and I believe that the old stuff would cause issues if I used it in the newer car. I'm sure you've thought of that.

[backtothe80s]

Thanks for the input guys

Usually, driving retros that have a following reveals useful forum info. A boring modern that doesn't usually break means there's little around on the forums for guidance.

From what I can find, there's no other bleed points. I'll be using genuine coolant. Will let you know how it goes...