You should have two tanks in the system. As seen from the rear of the
van looking forward, the expansion tank should be on the left, just
forward of the bumper. The overflow tank should be in the middle just in
front of the bumper and with the fill cap exposed to the access door
where the vehicle tag mounts. There should be a small hose from the
expansion tank cap over to the bottom right side of the overflow tank.
There should be two hoses or connections  to the expansion tank. And
there should be a sensor in the top of the expansion tank.

If you don't have all these things..........then Yup!, your cooling
system is incomplete.

Regards,

John Rodgers
88 GL Driver

Jens Jakob Andersen wrote:

>Howdy
>
>On my WBX, the expansion tank is NOT connected.
>
>A bit weird...
>
>I am not sure why this, and what is missing.
>
>Any experts out there on the cooling system?
>
>/JJ
>
>
>
>