Electrical Equipment problems of the 2002 Mitsubishi Galant

The contact stated car has been stalling for several years. When she took vehicle to the dealer, they told her the problem emerged because of low maintenance on the car. She tool vehicle for service, but not to the dealer because it was too expensive. Since 3-2003 water leaked into the car. Water build up inside of the car from the air conditioner. Also, had electrical problems. When the water accumulated in the car it will lock on its own. The air conditioner will not come on sometimes. There was mold in the car because of the water. The car seat was soaked from the water. On 9-3-05, after taking the car to the dealership, she picked it up and the water built up in the car again.