I have recently purchased a 1998 316i SE with 90k miles on the clock for £400 and it drives like a dream.
Have only been a member on here for about 2 weeks and have already sorted out two problems with the car!
Firstly the centre climate control unit kept turning itself on and off, which I thought was a loose wire on the back , but after looking through the forum, I found that it was a common fault, found one certain feed how to repair this problem. Went out and bought a soldering pen and resistor followed the step by step guide and the console has worked perfect ever since.
Secondly the front demister/ windscreen vents weren’t blowing air which was a big problem as the weather is getting colder, posted on the forum and kindly was given the solution to the problem.
Seems like everything else is working as they should now! But know where to come if I have any more problems