2005 R1150 RT Brake Servo Defects..

[redders]

As a 50+ rider who has always since 16 owned Japanese Bikes, thought I would go all Mr Reliable and get a Beemer Tourer...what a misconception: the electrics are utterly crap especially the brake servo set up. Reading posts online is like some sort of Black Art. How has BMW got away with this??? Apart from spending 2 grand on servo pump/controller has anyone got any useful info on troubleshooting? I have done the fluid replacement and bleeding scenario of servo unit but fault codes return for front and rear overpressure leading to much frustration. Any contructive comments much appreciated.. cheers.