Hey Loh. My 2013 has had the menues converted to English, so I'll have a look over the weekend at what screens to navigate to to do some of the things above and report back.
Otherwise:
1. What do you want to do with the steering remote? Pause the music? I'll check, but I think you do that by pushing the paddle switch in (which otherwise is 'select').
2. My lane departure only works when it suits itself. Otherwise, there's buttons in the bottom of dash below right of steering wheel to turn it on or off. I'm suspecting that my problem is due to my auto elec snipping the wrong black wire when disabling my after-market immobiliser (required to pass Aust rego). Decided to rely on the factory one, as the after-market one effectively made the proximity key a key fob only.
3. I believe so, yes. I think it's an option on the nav sceen menu. I'll have a look.
4. Mine is just the Contimobilitykit too. I'm advised that's what the european cars are moving to also. I'm wondering what I'll do it I get a slashed tire out in the country...
5. Yes. I play music from my iPhone via the USB in the console box. I prefer to do it this way as the music plays louder (than via Bluetooth), and the nav screen shows the file tags correctly and consistently. When I play music via Bluetooth, the display of tags is hit-and-miss, and when it does display song details it'll stop displaying when the next track starts.
I'll get back to you.