184.00 BHP 1995 cc 4 Cyl N47D20O1 (N47D20C). 2012 BMW 3 SERIES 2.0L Diesel Differential Assembly. F30/F31 Rear 320d Diesel Automatic Ratio 3:23. BMW 3 SERIES Diesel 252782 Miles. 3 SERIES 2012. Any included extras should be considered a bonus and may not match your existing parts.