Electrical connections outside the body must be protected against corrosion. Therefore, you will not find any connections that are not protected. Make sure that no plugs are exposed outside the chassis or body.
The rubber protection cap mentioned here has a diameter of 10.5 mm and the wire passage on the other side is 2 mm and is used by Volkswagen for various connections.
In the overview below you can find out for which VW model and for which application this protective sleeve was used.
Beetle :
-Electric fuel pump on injection engines up to 1/1981 (2 pieces)
-Oil pressure switch (1 piece)
-Reverse light from 8/1966 to 1972 chassis number 1132199583 (1 piece)
Karmann Ghia :
-Oil pressure switch (1 piece)
-Reversing light from 8/1966 to 7/1969 (1 piece)
VW Combi:
-Electric fuel pump on type 4 injection engines from 8/1974 (2 pieces)
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