Thanks John. And thanks everyone for the input. Patience paid off and it went smoothly.
Do I need to.reset anything after oil change? Saw a YouTube video where an American resets it by pressing odo button and then presses the engine start button. I tried it but nothing happens as demoed in the video. Maybe on UK spec we don't need to do this?
Also I notice they have fuel consumption displayed. I have toggled through the display and my car doesn't show that. again a UK spec thing ?