The VW Oil Pressure Switch operates the oil pressure indicator bulb on the speedometer. The switch is 10x1.0mm threaded and operates at roughly 3 PSI. Meaning that if the oil pressure indicator light is on, your engine has less than 3 PSI of oil pressure at the switch. The oil pressure switch fits 1954 through 1979 Beetles, 1956 through 1974 Karmann Ghias, 1955 through 1979 Type 2 Bus models, 1962 through 1973 Type 3s, 1973 through 1974 Things and 1980 through 1983 Vanagons. The switch operates on 6 and 12 volt systems.
|All Air Cooled VW Engines|
The VW doesn't originally have many gauges. The oil pressure light and generator/alternator light are the only indicators as to what's happening back in the engine compartment. The oil pressure light is operated by a "GROUND" signal from the VW Oil Pressure Switch. When you turn your ignition on, the two warning lights should both come on. Once you start the engine, both lights should go out. This tells you that your engine has good oil pressure and the generator/alternator are charging.
California Prop 65 Warning:
Please Note:The information listed below is for stock, unmodified VW's manufactured for sale in the US. VW's are commonly modified and very often parts from another year VW may have been installed on your car. California Pacific JBugs is not responsible for any errors if your car has been modified in any way.