I have just bought a 1997 318is Coupe Sport and am experiecing some issue's i never noticed when purchasing the car.
When i start the car and play around with the Climate Control settings, so far it works fine. However, when i turn off the car and pull out the key from the ignition, the climate control board makes a constant humming sound/noise like there is a fan inside it still spining or a faulty relay or somesort. This lasts for about a 10 mins or so and then the sound/noise goes off.
Is this normal operation?
Also the Hear Windscreen defroster is not working i do not think, however, i have not had a chance to check it properly as the weather in the UK is quite hot and humind.