Wet carpet: 2006 ST wagon. Front passenger's floorwell

[OzzieNorm]

If it smells like coolant your heater core is cactus. If not, time to get the hose out and soak the windscreen and watch out for where it leaks.

Hi mudski. Your suggestion is 'left field'. Thanks. Something that I had not considered.

I had noticed coolant level dropping - during the 5400k the vehicle has travelled during the past fortnight (Canberra to Perth - on the way to the Kimberley).

We have had some cold nights during that trip, especially up towards Lake Eyre (where we had a bonza sunset - see image). So, the heater would have been on - with coolant flowing through the cabin.

Will check for coolant leak tomorrow. Thanks again.