It's been a while since I've been here. I am considering buying an '87 528e from a friend. It seems like a great car. Just 2 little problems. The first is: does anyone know how to set the clock on the computer? Second: After the car warms up the idle is erratic. It jumps from around 800rpm to 1400rpms. Other than that the engine seems real solid. Some rust spots but that is a project for a weekend in the near future. Thanks in advance for your help.