Blower Motor Connector meltdown

[digieditny]

Hello everyone. Haven't posted here since last fall. Hope everyone is doing well!

1984 300td turbo.

My blower motor stopped working on the way back home today. The fuse was fine. I inspected the blower motor and found that the connector has melted pretty badly (PICTURED). I can get the blower motor to work if I hold it in place but that's not practical while driving.

So my questions are... is it safe to solder that connector on or use gobs of electrical tape it hold it in place? Where is the heat coming from that's melted the connector?

My car tends to overheat (the needle stays between 90 and 100 usually) so I use the heater a lot in my car. Doing a radiator flush and installing a new thermostat hopefully next weekend. My girlfriends needs the car to haul stuff tomorrow and I want to make sure the car isn't going to over heat. I'm afraid it might without the blower motor.

Any other quick down and dirty solutions for now?

Thanks!!!