This is weird!
 

Whilst driving in the rain, I can what sounds like water running down the inside of either the pillar between the nearside front and back doors, or down the pillar behind the nearside passenger door.
I'm wondering in it's a sunroof seal gone that is allowing water in, but I'm not sure.
Anyone had this issue and can shed some light?

Sunroof drain is down the front pillars of the windscreen. Do you have wet footwells. Give them a check.

Nope, no wetness in any of the footwells.

Anyone got any ideas where the water could be coming from?

Not until you find the water I don’t think.

Maybe it’s from the rear wash wipe pipe?

Check the scuttle drains are clear and not blocked with crud ... I had sloshing noises that traced back to blocked scuttle drains. Worth a check.:regular_smile:

Water trapped in the doors? Check the drain holes at the bottom of the doors.