2010 V50 T5. Had it 10 years, and suddenly the Autostart function isn't working. This is not the stop/start feature - I don't have that. This is the engine start feature on 5-cyl cars where you just flick the key to position III and do not have to hold it until the engine runs. Otherwise the car runs fine, no errors.

Does anyone know how it actually works? I'm presuming some sort of relay which controls it, but the relays list in my handbook is not giving me any clues.

It's a very minor annoyance but I'd like it to work again, because after 10 years I keep forgetting to hold the key!

Many thanks