None.
I am extremely fortunate to have found a Volvo such good condition. I have always liked Volvo 240 models. I recently needed to purchase a reliable commuter car for very little money. My Volvo has been faithful and reliable. It does need to be warmed up during cold winter mornings, however. I appreciate the comfort, safety, utility and reliability of my car. I consider myself very fortunate to drive such a good quality car for so little money.
I own a 1992 240 that I purchased in 1998. It has been exceptionally dependable. It's been better than I expected, considering when I purchased it already had 150k miles. The only thing I have done to the car is general maintenance. It now has 201k and all I've had to do is change the tires, belts, and replaced the front brake pads. I only paid $1,500 for it, so I expected that it would be needing something replaced, but I haven't done a thing to it. The only thing that tends to be annoying is the performance. It's very lethargic when accelerating, and it can almost be dangerous to pass another car unless you have ample time to get around them. Also, under full throttle, the sound of the engine tends to intrude into the cabin of the car. Also, when the air conditioner or heat is on, you can barely carry on a conversation in the car if the fan is on high. It is incredibly loud. Overall, though, the car is very dependable, and a perfect mode of transportation. I would recommend it highly. The only car I like more is my wife's 1995 Toyota Camry. It is about the same size car, however, it is much more refined, has better performance, and is cheaper to buy. It also has good resale, which is another thing that is very important.