JMH.

just to clarify.. my car has the 4 "nozzles" you described and they are the drains.. not for jacks. I can tell because mine have metal mesh just inside the holes. This prevents leaves and other debris from entering from the bottom of the car. I can even see the "nozzles" when walking up to the car, and they almost look as if something is not flush and needs attention... but they are the drains. hope this helps.

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Nello Tare

1982 300D (266,001 mi.) looking and running great

Previously owned:
1976 450 SLC
1983 300D
1976 300D
also
1982 Jaguar XJ6 (loved, but gone)