Picasso, How to access under the driver side carpet?

Car: 2011 C3 Picasso exclusive 1.6 Diesel.

I recently had blocked drainage holes in the scuttle below the windscreen and there was a build up of water, which has found its way under the driver's carpet. The carpet and mat were soaked (only on the drivers side). After clearing the drains, all water stuck in the scuttle drained away, but there is still water under the driver's carpet. The actual carpet has dried after about 2 days since I cleared the drains, but if I press down hard on the carpet it's a bit like a water bed - I car hear water squishing. Sounds like there's some soundproofing foam which could have soaked up the water.

How can I get under the carpet? Ideally if I could remove the plastic trim that goes paralell to the door I might be able to peel the carpet up a little from the side - enough to access the water. Does this trim simply remove by pulling hard? I can't see any screws or fixings.

Thanks

Hi

Most of the plastic trim is clipped in place or held by a fastener

Try levering and pulling to remove if you can't see a fastener.