2005 Ford Five Hundred electrical system problems

My wife called me outside and said the passenger side headlight was out, I said no problem I'll have it replaced in the morning, go ahead with one head-light, she only went around the block and came back screaming that the car was on fire, and the fire was right behind the headlight that just went out. I extinguished the flame and disconnected the battery. The car has been towed to the shop for an estimate.

Tl* the contact owns a 2005 ford five hundred. After placing fuel in the vehicle, white smoke emerged from the engine compartment. The contact opened the hood and flames emerged from the engine and the smoke turned black. The fire department extinguished the fire; however, the fire erupted again and would not stop until the battery was disconnected. The vehicle was towed to the contact's residence. The dealer was not contacted and the manufacturer was not notified of the failure.