E90 320D
The BMW E90 320d, diesel variant of fifth-generation 3 Series sedan produced 2005-2012 representing BMW commitment to efficient diesel technology in European markets, features M47TU2 (2005-2007) or N47 (2007-2012) turbocharged 2.0-liter inline-four diesel engine with power outputs progressing from 163 PS (161 hp/120 kW) producing 340 Nm torque in early models, to 177 PS (175 hp/130 kW) with 350 Nm in mid-period 2007-2010 versions, culminating in 184 PS (181 hp/135 kW) and 380 Nm torque for 2010-2012 LCI (Life Cycle Impulse) facelift models delivering power at 4,000 rpm and peak torque from 1,900 rpm through common-rail direct injection. Six-speed manual or six-speed automatic transmission drives rear wheels through traditional BMW longitudinal engine configuration optimizing driving dynamics with impressive fuel economy achieving approximately 4.9-5.5 L/100km combined representing 50+ mpg efficiency.
The E90 320d achieved exceptional popularity in European markets where diesel taxation and fuel pricing favored compression-ignition engines, becoming best-selling 3 Series variant in many markets competing against Mercedes-Benz C220 CDI and Audi A4 2.0 TDI in premium compact diesel segment. Combination of strong mid-range torque delivery, excellent fuel economy, and characteristic BMW rear-drive handling dynamics created compelling package for business users and driving enthusiasts, with 320d offering genuine 140+ mph top speed and sub-8-second 0-62 mph acceleration matching many gasoline competitors while achieving superior efficiency. Progressive N47 engine updates addressed earlier M47 reliability concerns, though N47 timing chain issues emerged in higher-mileage examples requiring preventive maintenance awareness, with E90 320d maintaining strong residual values and continued desirability in European used markets representing golden era of BMW diesel engineering before emissions scrutiny intensified post-2015.