heater matrix

[l18mnb]

does anyone know how easy it is to get to the heater matrix??

i have a coolant leak and have checked all the usaul suspects like thermostat housing ect, but i recently changed the carpet and the drivers side was absolutely soaked, and it only loses coolant when the heater has been on.

so im assuming its a hose/connection or the matrix itself.

[Zippy Saloon]

Think the hose connections are visible on the bulkhead on engine side so unlikely to be them.
I'd guess major PITA to replace matrix, think dash & heater will have to come out - nothing difficult but long winded.

Edit, just looked at Haynes and it is dash out :-(