hi all, i'm hoping someone out there can give me a bit of advice, i've got a mk iv turbo and when the engine gets warm it's making a ticking noise that gets faster when you rev the engine, it sounds similar to tappets on an old car i used to have, oddly though you can hear it more inside the car, it's not affecting the performance, it's just annoying. Also i need to change my front near side headlight and i've been told it's a pain, any suggestions on either would be great.