I have a 2005 Elise with a broken switch panel for the START and LIGHTING buttons. #5 in the diagram below.

C121U0037F is a part number I came up with. (I can swap-over the switches, just need the plastic piece that keeps falling out because of broken retaining tabs) :p

I'm not sure of the term 'SensoSoft' in the parts listing here. But since this is for an early '05, its probably not that.

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