I usually use my cigarette lighter power outlet to charge my iPhone - use a USB adapter/converter that plugs in and gives me 2 USB outlets.
Yesterday it stopped working so I tested different USB cables to no avail, tried re-inserting adapter to no avail so I left it for the night.
This morning I re-insterted the same USB adapter and it started to work again...
I'm thinking the cigarette socket maybe faulty or something? the only reason I say this is because if I try to use the ciagrette lighter itself ( I don't smoke just tried it for testing purposes) it doesn't click in like the manual says it should. Manual says you should push lighter in and it will pop out automatically when it reaches temp. I can't get it to click-in at all. If I hold it in by hand it will heat up just won't click in.
Apologies for bombarding the forums just recently, I just seem to be getting niggle after niggle with this car. It's the most frustrating car I've ever owned