Dear Metallo,

Hope you're well. I've retro-fitted a coolant level sensor, to the coolant overflow tank in a '94 940. These sensors were not factory-supplied on most 940s sold in North America.

As the engine bay wiring harness did not include wires for this sensor, I ran a wire to the cluster, through a rubber grommet in the firewall. The sensor's ground wire I affixed to a screw, that I emplaced in the nearby metalwork.

As best I recall, I modified a connector obtained at a salvage yard, so it would fit the sensor's connector.

The parts diagrams in Volvo VADIS - a superseded dealer parts/service database - do not show connector formats with such clarity, that I can specify which one to get. Even were you willing to buy the wiring harness, I doubt those are still available from Volvo.

If you're within reach of a Volvo dealer, a parts specialist may be able to identify the correct connector housing and metal contacts. If those are still available, you can buy them, crimp the wires to the contacts and emplace the contacts in he housing.

Otherwise, if there's a salvage yard that has a 960 - which cars usually had factory-installed coolant level sensors - you can get the connector with wires, and use that.

Hope this helps.

Yours faithfully,

Spook