got a 300tdi, the interior light stoped working, also the radio resets its self everytime you take key and you have to re enter code, and the clock resets it self and sometimes does work, checked fuses and things, if any could shed some kight would be helpful cheers

Try checking fuse F6 (20A) in Satellite fusebox 2 which I think you will find behind the lower dashboard panel - drivers side. This is a battery feed to the Clock, radio, interior lighting, alarm and trailer socket.

I took this from the Haynes comic as mines a 200 tdi so is different.

If it has blown and a new one blows straight away you have a wiring fault somewhere after it which will need to be sorted (trapped wire). Don't be tempted to try a bigger fuse - you could cause a fire when the wiring melts!

If fuse is ok, I would check that you have power to it. Should be live all the time on a Brown/Purple wire from fuse MF3 in the engine bay fusebox (60A)

Hope this helps, Peter.

cheers for that will have a look and get back to you