Quote Originally Posted by 94_e34_525i
Yes, BMW's aren't perfect but they are known for one thing building magnifacent engines. I dont have expereince in the M30 so I dont know, but I dont think its a common problem. And the Nikasil was just a experimantal thing to save weight it didn't work so they stopped. The cooling system is annoying because you have to use $20 coolant but hey its better than a $1500 dollar engine.
Banjo bolts are an easy fix, and if tightened to spec and regularly maintained do not come loose, except perhaps on a few vehicles. Ultimately the problem was addressed.

You can't be perfect when building complex machines in a production process.

Toyota throws design, quality, panache and practically everything else to the wind to avoid these problems. BMW edoes the opposite, which is why I own, and enjoy my e34. I adjust my valves every 40,000km and loctite my banjo bolts. Haven't loosened yet, but Gale's bolts are going in next time for added insurance. $5 worth of hassle. big deal.

Nick

ps I agree the oil pump bolts looked bad, but- did it fail? And how many does this happen in? It can't be the first as lots of poeple have them- but are there many?