Smart agent quoted £220 for new key & required two 80 mile round trips to verify details,order key and return to have key programmed. www.keyfobrepair.co.uk quoted £19.50 to replace the three micro switches & battery plus £4.25 for new front cover. Very prompt service by registered post. It seems that 90% of Smart key problems are the switches or battery. Most important as the only means of access to a Smart is via the electronic key, there is no manual locking. I strongly recommend this little company. Run by Crescent Radio,21c Green Lane, London, N13 4TT.