Its easy mate, just pulls out , then the bulb just pulls out of the unit. You can get new ones on ebay, just search "vw lupo interior light", when i looked there was red,white,blue,green,and a disco effect. On a seperate note, its only a 1.0, but I was just wondering if anyone knows if theres anything I could do just to get it to set off a bit quicker? I know theres not much you can gain from a 1 litre but anythings better than nothing!