Many thanks Paul for your feedback! Indeed, the E46 M3 SMG has the exact same problems as our Ferraris. The hydraulic system of the robotized gearbox is very identical except that a piston hydraulic accumulator is used in stead of a diaphragm accumulator (Maserati uses also a piston accumulator). Piston accumulators are also maintenance parts and must be changed. The pump relay socket located in the engine compartment at the LHS is quite different compared to the 360 and we'll provide soon the right Plug & Play solution also for the different BMW SMG.
I am a very happy convert to the F1 pump relay, I am extremely pleased with the shift response time and having a system monitor for the pump. I changed mine out in less than 10 minutes on my F360, very straightforward process. I will order another now for my 2004 E46 SMG M3 as well, it is money well spent! Customer support is also top notch!