I have a 56 plate 1.3 multijet with the same problem. I noticed it very early in its life but did nothing about it as all I had to do was flip back to dipped and all was well. It has happened a couple of times recently which is the reason I am looking on the forum. Had the MPV since new and now 6 years old. The daylight flashing of headlamps by pulling on the stick no longer works at all. MOT is due! Looks like a visit to Maplin for some contact cleaner may be a starting point. Nobody has mentioned relays much so assume these are not the cause of the problem.