Both front shock absorbers broke in the first month (dealers fault).
A/C didn't work. The heater wouldn't blow properly, as the air filter would get junked in less than a month (City driving).
Rear taillights were problematic. Bulbs would burn out constantly. This seems to be 5series problem.
Some minor suspension repair was needed once a while.
Finally engine got messed up (285k km). Too much to list what happened to it. But the dealers which sold the car, got they fingers into the engine.
Quality car. It performed extremely well in daily driving at city, and had perfect fuel consumption on the long distances 6,5L/100km (38,5mpg).
Very comfortable interior. Both front and rear passengers would feel comfortable. Drivers seat is superb.
Very low levels of noise. Even at speed of 140km/h. You don't have to increase volume of stereo at higher speeds.
However, car lacks handling at more agressive driving style. That is what I really missed from my previous 3series BMW.
The handling can be improved very cheaply. Just install front bushings from the E32 750, they are not expensive and make the car handle so much better you will not believe it is the same car you are driving.