Options Engines My2008 523i – BMW 523i Engine Model Years Available: 2008 – Current Code N53B25 Type 2.5 Liter I6 Max Power 140 kW @ 6100 rpm190 hp @ 6100 rpm Max Torque 240 Nm @ 3500 rpm177 lb-ft @ 3500 rpm 0-60 mph (0-100 km/h) 8.2 sec Bore/Stroke 82.0/78.8 mm Compression Ratio 10.7:1 Fuel Grade Unleaded Premium Fuel Consumption 27 mpg City48 mpg Highway Torque Curve Back to the Engine Library