I noticed from the E39 board that BMW has a Technical Service Bulletin for a 100 RPM idle increase adjustment through software programming for the M62 engine. According to the bulletin, customers complain that the engine almost stalls when using the power steering in shopping malls (closed throttle condition) and is even worse with automatic transmissions (higher load requirements). I have the exact same problem and want to know why BMW doesn't have a TSB for the E34 M60s? I dread steering the car through grocery store parking lots in my 94 540iA as the car sounds like a POS that has a huge vacuum leak (idle is around 450-500 RPMs). Once the engine operates at above 600 RPMs, everything is kosher.