As above. Do i fill through clear bottle on passengers side or through the expansion tank?

Thanks guys,


Mike

 

Its better to top up via the header tank, but please only do when the engine is cold,otherwise a risk of scalding is on the books due to water pressure.
The white tank at the side of the radiator is purely for "excess" coolant in the system as the water expands and contracts as it gets hot then cold again.

 

Thanks very much!

Regards

Mike