Bay Holes o______o

zabo wrote:for the factory to apply some wax sealant rust protective stuff to the frame

they originally had clear plugs covering them

penth2o wrote:All busses had them at one point before PO work was done on them.
They are process drain holes to allow excess primer/paint to drain out after the complete vehicle body had been dipped at the VW factory. The holes are normally sealed afterwards with a translucent colourless plastic plug which should be replaced if missing to prevent ingress of dirt and moisture. You should also find some on the inside of the rear-wheel outboard arches (i.e. wings or fenders).

The best way I could find a use for them was to use them when I undercoated the beast. They are perfect for accessing the frame rails to get undercoat in them. Another use I found was for the wiring I ran for reverse backup lights. (use hard plastic wire cover & rubber grommet). Either way they should be plugged to prevent the forementioned above. Nice find 71_geogia_beetle.