There were a number of automatic transmission problems in the past, but they've been pretty limited on the E90 series. The biggest one I've seen is the leaking mechatronic sleeve issue, which is an expensive repair if out of warranty, but it only applies to the ZF automatic transmissions, and those are only in the 335. The manual transmissions have sounded pretty solid.
So with regards to a 2007 328xi. I don't know of any significant manual transmission issues that I would be worried about. As always, your mileage may vary.
2009 335i xDrive coupe, Jet Black, Black Leather, Grey Poplar, Steptronic, ZPP, ZSP, ZCW, iPod/USB, HD radio, Parking Assist. Rear Fogs, Hardwire V1, ProFit G3.
ED May 12, 2009, Munich dropoff May 16, Redelivery June 22, 2009
Prior 33 years of cars: 1967 BelAir wagon / 1968 LeMans Tempest / 1970 Mustang Mach 1 / 1972 El Dorado / 1978 Corvette (kept until first Bronco) / 1981 Subaru GL wagon AWD / 1983 s10 Blazer 4x4 (big mistake) / 1985 Bronco 4x4 / 1996 Bronco 4x4 / 2004 Passat 4motion
Last edited by Zooks527; 01-19-2013 at 12:03 PM.