Sagging suspension can be a result of air suspension struts and/or drier leaking air. These type of air leaks can lead to failure of the air suspension compressor.
Car Problem Reports
Lincoln Continental Compressor Failure Due to Air Leaks From Air Suspension Struts and Drier
Lincoln Continental Problem
Average Mileage: 115,000 mi (63,000 mi - 147,000 mi)
fear of vehicle dropped compressor runs 5 seconds shuts off bags do not leak
Visitor, 2001 Lincoln Continental
I heard a popping noise when I pulled in at night. In the am, the rear end was sagging.
Visitor, 1998 Lincoln Continental, 63,000 mi
I HAVE A 98 CONTINENTAL AND I CAN HEAR AIR LEAKING OUT OF THE REAR PASSENGER AIR SYSTEM SOME WERE. HTE AIR BAG STILL INFLATS JUST DEFLATES REAL FAST AND IS MAKING MY COMPRESSER WORK OVER TIME. IS THIS A SIMPLE FIX OR SOMETHING MAJOR?
Visitor, 1996 Lincoln Continental, 136,000 mi
rear passenger side suspension doesn't get suspended when car is started; I own a leaning lincoln.