CakeDaddy wrote:
good good stuff. glad all is well, but Im curious to what the above quote is good for (reflashing the ecu for the engine) in particular. Did they bother to elaborate any? I remember reading about a re-prog/flash for the Q cars, but it wasn't available for these M's
I'll check to see what the actual service performed was.
The problem I was experiencing was that it was hard to drive the car smoothly. The "tip in" on the throttle was WAY too sensitive, to the point that just a small amount of pedal resulted in a lurching start.
Additionally, if I attempted to drive "normally", the rate of acceleration would surge and recede through the gears. It felt almost exactly like the acceleration pattern of a manual-transmission car. Acceleration, which tapers off at the point of shifting to the next gear and then resumes. The problem is that when the car has 340hp, the surge is sometimes rather dramatic - I actually had to let off on the gas to counteract the surge.
The change of the programming has resulted in a much less sensitive "tip in" - I no longer lurch away from stop. There is still a bit of surging in the normal acceleration mode, but not near as bad as before.
I'll check the service papers and report back.