I have a March 2000 C Class W202 220 CDI Estate, which I have owned from new and has been everything I expected a MB to be - a great car. Just recently when starting and sometimes drawing to a halt, the parktronic shows as a malfunction and switches off. Has anyone expirienced this with any of their own vehicles or know of what the cause of the problem is? Handbook refers to cleaning the sensors which I have done but with no change to the problem. Vehicle will be due a B Service in two months time, but I would like to close this problem out before then, if possible.