I bought my '90 535i 5-speed in 2001 with 185K on the clock. Best vehicle I've ever owned. To date I have other than normal maintenance replaced: Radiator, starter, and water pump, all DIY, and last year had to replace a front wheel bearing/hub and ignition lock mechanism. Those would have been DIY too if it hadn't been so cold at the time with no inside heated space to do the work. I need new struts now which probably will not be a DIY job. The m30 is rock solid as far as I can tell but I would highly recommend a 5-speed vs. automatic. I'm closing in on 250K and it barely burns a drop of oil between 3k changes. I'm personally not concerned about the lack of safety features. The e34 is built like a tank. I plan on keeping and driving this car until it won't go any further.
Hope that helps.
Last edited by Mitch90535im; 11-09-2011 at 12:20 PM.
1990 535i 5-sp., except for 16" M-Contours, cd deck, and clear corners, completely stock. 226k and running strong