Sounds like a beauty. Yes, I hear you that it will be down to you to fix it. I am still undecided about how good the three-year unlimited mile warranty really is and how much the dealer reports back issues to the mother ship but you clearly are on your own. This is one of the few videos I found on taking things apart though there are others here who have done similar if you read into the forums.It's 8.5 years old (535) but only 3400 miles. The push button is obviously faulty in some way, I've patiently tried all sorts of pressing and nothing happens but it's going to be down to me to try and fix it. I wonder if some sort of electrical cleaning might do the trick?
FYI, I put a post under tacho perspex about dismantling and reassembling my clocks using the existing electronics and base with a new outer housing from another unit. It worked out well and took a morning of care and diligence. Not your issue but I add because your issue is worth investigating. You hear the click on my Interceptor as you change the function/readout.Thank you for the information and video. It looks very straight forward to get the clocks off and apart. Not so sure about getting to that switch, looks like there maybe just two screw that need to be removed but the only way to find out is to get them apart I think. I'm thinking it will either be damaged in someway or just needing an electrical clean.