Nothing for the first 100,000-miles.
Sometime after 100,000 miles the following items went out.
Several bulbs on the dash-no big deal- all gauges still light up a bit.
A front brake caliper seized up on a trip down I-70. We were using the brakes for 20-miles solid. I am a retired mechanic, so I was able to temporally repair the car on the scene and make it on to the next town.
Passenger side power mirror will not get power. Just move the mirror with someone’s hand.
The coolant reservoir busted. I made my own, which is much better.
At 190,000 miles the transmission went out. Not bad considering that this car was driven a lot in the cities and was always heavily loaded. The 1-2 clutch started slipping. I rebuilt the transmission and all the hard parts were still in factory tolerance specs and looked brand new at 190,000 miles. Most of the soft parts still had lots of life, but that 1-2 clutch was paper thin. This was caused from my wife’s super hard accelerations from dead stops. She is a race demon, but so am I.
Make sure you get a Taurus/Sable with the AX4N, not the AX4S. In 2003 all Taurus/Sables got the heavier AX4N transaxle. Look at the bottom of your trans pan to identify, or you code on the door jam. 1995-2002 most Taurus/Sables were built with the AX4S.