Driving at night headlights started to flicker and then went out. 1st left side then right side. Solder connecting headlight assembly to electrical wiring dissolved. Per Ford dealership the solder is dissolving because the electrical circuitry in the headlight assembly overheated causing the solder connection to fail. This happened three times. The first two time the dealership re-soldered the connection. The third time they had to replace the headlight assembly with a new er headlight assembly with updated internal circuitry from my conversation with the Ford dealership this had happen in the higher end models of the Lincoln that are a few years old. Why did I have to wait for it to happen three times before they told me it is an internal design defect of the headlight assembly. The cost of the replacement assembly for both sides is around $2,300. I got caught with this twice late at night, I originally thought it was the headlight bulbs. Fortunately, I was still relatively close to home, and not halfway into my 180 trip I was starting out on. This happened around 4 in the morning when I was driving on a rural highway without street lights. Not very pleasant driving without headlights.

- Somis, CA, USA

The contact owns a 2010 Lincoln Mkx. The contact stated that the driver side low beam headlight failed. After inspecting the vehicle he realized that the wiring harness was melted. The vehicle was taken to the dealer who verified the failure and advised that the wiring harness needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was repaired. The failure and current mileage was 55,000. The wiring harness for the low beam melted into the light bulb. Updated 07/18/12

- Jefferson City, TN, USA