Wet drivers footwell

[stamford]

The drivers footwell is under water. Cleaned it out and dried it up. 24 hours later back again. It appears to be coolant. Anyone experienced this? Sounds like heater matrix or a pipe. I’m thinking this may be a pig to access? Coolant reservoir level has also dropped so must be linked.

 

[NHN]

Fill reservoir, pressure up via reservoir hand pump, lift carpet beforehand of course, check for coolant leaking whilst pressured, of course car of all this time, that should prove.

Unless thermostat or any associated valve blocks flow with ignition of.