Air bag light flashing, could be short circuited, waiting to repair at 10,000 km service.
Driver seat back support too soft at the spine area. Solve by stuffing a small pillow into the back pouch of the seat.
Generally happy with the car. The comfort will be very high if not because of the seat problem. A quiet car to my surprise.
I am also a owner of Xsara 1.6. I agreed with you that the driver seat is too soft, I am experience back ache too. But all the whole I like your comments. I hope you are just like me so far no regrets.