tlp wrote I did a front PDC Retrofit.
The thread is here
It's true that front sensors are not too effective with the concrete parking stops. The sensor will detect a curb or parking stop initially but as soon as it passes the horizon it stops sensing. I find it effective around walls and its great for street parking.
If you decide that you only want to do a rear PDC retrofit I have my PDC ECU (Rear Only) for sale.
Thanks for the tip, in light of all the work I've decided to take
donovan advice and be more careful the next time
donovan
I inquired not for myself, more for my daughter, last year when we were wine tasting in the Napa Wine Valley with our Z4 she drove smack into a parking stop as we tried to leave the winery, she and I forgot it was there. Besides how do you tell your daughter "sorry you cannot drive my car"

So I don't want it to happen to my M3 you see