How you change a windshield washer tank on a Volvo 940?

To change the windshield washer tank on a Volvo 940, first, disconnect the negative battery terminal for safety. Remove the bolts securing the washer tank and disconnect the hoses and electrical connectors attached to it. After removing the old tank, install the new one by reversing the process: connect the hoses, electrical connectors, and secure it with the bolts. Finally, refill the tank with washer fluid and reconnect the battery.