hello all ...update from my previous post ...finally mustered up the courage to go to approach my BMW dealer about the DSC failure on my e90 (after having being quoted £1700 frm my mechanic december last year) the lady said she could only quote after a £60 diagnostic depending on the failure...got a call later quoting just £350
for the failed hydro unit and £115 for steering unit coding (separate issue i presume) ...so fear not if you have a similar failure i assume it applies for most bmw's post 2006 since i paid as much as someone did for a 1-series (quoted earlier) the car drives same as it did before though not much change at all...this thread helped me loads ..thanks every1 for ur contribution