I have been lokking for a good Indy BMW place in Sussex & was given these peoples name by a mate. I had a new radiator put in for half the cost I was expecting & have just had bushes done as well. For non-specialised work they are hard to beat, really know their stuff and a pretty reasonable cost wise. Their details are:
Woodruff Business Centre
Look for the red burger truck half way down on the city side of the raod, opposite a Jag garage. They are the 3rd unit from the end & are a couple of doors down from Camberly Auto Factors (last unit) which has proved handy more than once.