Some time since my original post on this topic, but in January the Rapid refused to start whilst out shopping and parked in the shop car park. It had driven 12 miles to the shop with no problem and had been parked for only 30 minute or so. Breakdown chap arrived and tested the battery which was absolutely flat. He started the car with his jump pack and we drove 12 miles home with no further trouble. I purchased a new battery from Halfords and fitted it myself. Ever since then the "Low Battery" message has not appeared and the Start/Stop system cuts in far more frequently than it had done before. This supports my original suspicion that the original MOLL battery was the problem. MOLL batteries had been replaced by Skoda when they had been fitted as standard to new Kodiaqs, but Skoda always said that the problem only affected Kodiaqs fitted with MOLL batteries , and definitely did not affect Rapids fitted with MOLL batteries.