Every so often when I turn the car off, I hear a loud whirring noise from the dash and the clock and date reset to 00:00 and 01/09/2009.
It did it last night and I received a text from the tracking company (and a missed call) letting me know the battery was disconnected.
The terminals are clean and on tight so I’m wondering if the battery is failing? It’s not that old and it’s an AGM battery.
Also - I’ve had a headlight out for a couple of weeks so I bought a new pair of bulbs. Fitted them last night and I had two working headlamps for about 10 minutes before it went out again. I thought I’d blown a bulb but when I press the headlamp button on the fob, they both come on so it’s not the bulb. It seems like a power supply issue from the headlight circuit.

Any ideas guys? 2010 MY Vogue SE TDV8 3.6 Stornoway Grey- fully loaded