Thanks soo much
You guys have just saved me some money, I did the button reset. But I am sure that battery would have worked.
I love this sight it is one of the best if not the best thing to happen to a mercedes fan-mechanic.
And by the way JimF how did you know that it would flash 9 times and if you have a list of the other codes can you send them to me or tell me where to get them.
Oh did I mention that it WORKED!!!