MD22P coolant replacement: what is inside a calorifier?

[nigelmercier]

It's time to replace my MD22P coolant. The book says it takes 7.5 litres, which I assume includes all the pipe-work, but perhaps not the calorifier. Is this just a coil inside, like a domestic hot water cylinder?

 

[vyv_cox]

Yes, but the coils are surprisingly large. Photo at the bottom of this page http://coxengineering.sharepoint.com/Pages/Calorifier.aspx

 

[nigelmercier]

Thanks, so I'd better get 15 litres rather than 10. I think it is ready to use, but it's in Spanish

 

[VicS]

Thanks, so I'd better get 15 litres rather than 10. I think it is ready to use, but it's in Spanish

You need to figure out if its ready to use or requires diluting. If the water supply is hard it makes sense to deliberately buy it ready to use or, if you follow Volvo's recommendations, you should otherwise be diluting with distilled or demineralised water.

Have you decided if you should be using a long life / OAT type or a conventional low silicate type ?

 

[nigelmercier]

Have you decided if you should be using a long life / OAT type or a conventional low silicate type ?

I assume that an engine from 2000 would be conventional, but I will check. Will also check if dilution needed.