I just bought a "new" 93 90CS sedan today from a private party. It has <50000 miles and is spotless. Back seat never sat on. Full maint records included. I have owed Audi's before and look forward to many miles of fun and safe driving.
This car has been nothing but a major problem. It was fun to drive for about 1,000 miles after I bought it, then the troubles began. In a span of about 6 weeks, I experienced a blown head gasket, ruptured CV joint, and an oil leak as well as problems with the alternator, fan belt, and coolant leaks. This car is appealing at first glance, but it has a history of these problems. BUYER BEWARE.
Great handling. Features beyond it's age. Very comfortable ride. Makes as good gas mileage as any new car and a large fuel tank so no need to fill up often. The lines of the car are classic and looks like a much newer car. Large trunk and a rear seat that folds down to carry far more than you would expect. Most dependable car I have ever owned. Makes long trips a joy.
I purchased my 90cs with about 60,000 miles on it and had problems from the start. Within a couple months, the oxygen sensors and catalytic convertors went and were the first of many problems to come. The list of replaced parts includes: cat. convertors, oxygen sensors, clutch master cylinder, starter(2) , ignition, brake caliper, water pump, thermostat. The mileage now stands at 112,000 and the car is finally on the selling block. Several other problems have developed including the roof fabric sagging, the drivers side interior door handle no longer working, and a constant clicking noise that occurs when accelerating during turning, supposedly from the heat shields.