I may be unlucky but after the blazing sunshine heated my pad to virtually untouchable , a split appeared on the surface the following morning. It still works though. The unit was not knocked or scratched but seems to have split as it cooled down. I cant find a similar fault elsewhere on the net and for a while I thought that MB was reluctant to cover the replacement costs.....£400 plus fitting plus VAT Has anyone else experienced something similar? Happily it's being fixed under warranty but now that I need to protect the centre consul when parking in the sun …... it's a nuisance.