The 2 Pole VDO Oil pressure sender threads into the VW oil pressure port and has a M10x1.0 thread size. The
sending unit reads to 150 PSI for sending a signal to a separately sold VDO 150 PSI Oil Pressure gauge. The
sending unit also has a contact for a warning light that turns on at roughly 11 PSI, meaning that if the oil
pressure indicator light is on, your engine has less than 11 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.
This sending unit is designed to work with 150 PSI VDO gauges only and reads from 10-180 ohms. It operates by
grounding out to the engine case. The sender unit has tapered threads so PTFE tape or pipe sealant should not
be used. Thread sealant will interfere with the sending units ground to the engine case.
The sending unit has two threaded posts for hooking up the sending unit to the gauge and a dash warning light.
The posts are identified on the sending unit, the "G" terminal should be connected to the back of the pressure
gauge, to the "S" or "G" terminal. The "WK" terminal should be connected to the negative side of the oil
pressure warning light bulb.
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.
If you replace the original oil switch with any of the two terminal VDO senders,
YOUR OIL LIGHT WILL COME ON AT IDLE WHENEVER THE ENGINE GETS UP TO NORMAL TEMPERATURES.
The original style oil switches (021919081B) trigger the warning light when the oil pressure drops below roughly 4 psi.
The VDO oil senders that have a terminal for the warning light will trigger the warning light when pressure drops below 10 psi.
Due to this, the oil light will illuminate before your oil pressure is actually low. To correct this we advise installing part number (9205) so both the VDO sender and the original oil switch can be used in conjuction.
Once (9205) is installed in engine case and original oil switch and VDO sender are screwed into it, the wiring would be as follows.
The wire for the warning light would still plug into the original switch. The G terminal of the VDO sender would connect to the oil pressure gauge.
And we leave the WK terminal of the sender with nothing connected to it.