Just seen this thread...my mothers 2006 320i auto has had 3 coil pack changes and has started leaking fluids. Inspection by local dealership (stephen james, enfield) diagnosed the following all leaking:
Camcover gasket - £252.54
Vacumn pump - £376.39
Transmission sump pan & Electrical sleeve - £507.08
Engine sump gasket - £460.45
The car has barely done 33K miles.