VW Beetle and VW Super Beetle 61-79
VW Bus 50-79
VW Karmann Ghia 61-74
VW Type 3 62-73
VW Type 4 69-74
VW Vanagon 80-mid 83
VW Thing 73-74

This switch operates the oil pressure indicator bulb (on the speedometer.)
 If  oil pressure indicator light is on,  engine oil pressure is under 3PSI.