Uh-oh... Took the latch off, gave it a clean overnight, put it back on this morning and checked, the warning light is still there, but now I can't open the bonnet as when I turn the key it doesn't fully turn the release latch, only partially. I think the white rod that connects to the front might not be connected properly. Tried pushing the grill to connect it better, but no luck :( Also a new sensor is £50 as its part of the latch mechanism and can't be seperated (I tried!)