lightbulb

Does anyone know what size the bulb inside the dash is on a MK1 Arosa ? I want to replace mine for some green ones.

Hi, It's my first posting so go easy! hehe The sidelight on the drivers side of my Ibiza has gone pop, manual says simply remove the back cover and swap bulb, manual fails to take into account that Seat put an engine in what was otherwise an empty space when they wrote the page on changing...