Is there any liquid to clean cooling system?

[edzha90]

Hi there,


I have heard that there is a liquid which you put into your cooling system and after hundred miles you drain your cooling system and flush it then replace with fresh antifreeze. Afterwards your cooling system works better (as my heater matrix don't give the maximum heat)


What liquid is that, what is called?


it's 1.9 diesel.


Regards

[Alan02]

There is a flush you can get for oil in the coolant.
If your matrix is blocked, try disconnectin hoses and back flush the matrix to get any debris out.

[phil96tdi]

Not Meaning to Name drop but Wynns do a good quality professional range inc a rad flush, available at all good motor factors.

[Doctle Odd]

I use Daz works well