This evening was the first time I had a proper look at my "new" C6. I'm waiting until May to tax it so it's not on the road yet!

I have some parking bulbs gone along with a pinkish Xenon light the driver's side. I cannot figure out how to change these and can't seem to find anything on the site (I'm more than likely not searching correctly!) Can someone point out where I can find this out?

Also do I need to disconnect the battery to change the Xenon and if so do I need a radio code as I can't see a code in the owner's manual?

My spoiler didn't rise on the journey home last Sat so had a quick look at it. The passenger side of the spoiler was free but the driver's side was siezed. Gentle persuasion eventually got the spoiler raised and I oiled all the parts, I can now lift the spoiler freely but I took it a few miles up the road to see if it helped but it's still staying down. It does not raise in service mode either so do I just keep putting lube on it and hope it eventually works or can I get it plugged in to see if a fault exists?

Finally when I came back from the spin I tried the settings for lowering and raising the suspension and I left it in the lowest setting. Is this recommended or should I raise it back to normal?

Edit: - I forgot to mention I got stuff to do a full service from my local Citroen Garage and the oil I got is Total Quartz "Ineo ECS fuel economy" 5w 30 Fully Synthetic and it has grade ACEA C2. I presume this is fine?

Thanks for any help