To the original reviewer--spray some spray graphite into the door lock machinery and door senors. That often fixes the false "door ajar" reports--it did on mine.
And, true, some of the air suspension parts do have a limited lifetime. It's something to watch out for when buying a used one, as it's definitely not cheap. But in my opinion (I own a '96 Mark VIII), the positives of the car are more than worth dealing with the occasional repair.
It seems to me that almost any older car that has an air suspension system has some sort of problem with them. I have experience with failed rear air shocks on a 1989 Towncar, a 1995 Towncar, a 1998 Buick Park Ave, and a 1995 Buick Riviera. But once you replace them, you know that the money is well spent. :)
(P.S.- take it from me that its going to me kind of hard to go from a sports car to a luxury car, back to a sports car. The ride in a luxury car is so smooth that it makes going back to a stiffer suspension (and smaller cabin) rather difficult.)
Right I have a silver 97' Mark VIII, and my ex girl has a 2002 Buick LeSabre; when I bought the car she instantly stopped driving hers, she was mad when I wanted to drive my car. She loved the car until she was driving and someone hit her.
Now I'm a pedestrian again and she's still riding, it's almost finished, I could have bought another car but couldn't find a mark VIII, so I kept it. Sometimes I just open the garage just to look at it.
I have not owned a Mark VIII, but I owned 2 Mark VII's with the same air ride system. They make aftermarket air springs that cost about 89.00 each, and come with step by step instructions on how to change them. I am in no way especially handy with cars, and I had the 2 front bags replaced on my 88 LSC in an hour. And they worked perfectly, and lasted the entire time I owned the car (50k after I replaced the bags). Had I not wrecked the car, I would have gladly kept her forever.
And trust me, if you think these cars are expensive to maintain, then you'd better not even dream of owning a foreign car. I replaced my Mark VII with a 2000 Infiniti I30, and it is by far the biggest piece of garbage, aside from its looks, that I have ever owned.
I am currently scouring craigslist, hoping to score a good deal on a Continental or a Mark VIII. I will never stray from Lincoln ever again, because no car delivers better value and performance for the money, PERIOD.