All models are equipped with air conditioning, four electric windows, radio with CD player, MP3 function and six speakers, cruise control and a six-speed manual gearbox equipped. For an additional charge is a six-speed automatic is available (at 335d series). With the in September 2007 in the ongoing series introduced BMW EfficientDynamics measures in the coming four-gearbox models with a start-stop system.

The six-cylinder models differ visually from the four-cylinders with chrome elements (eg, the vertical bars in the kidney of the grille, window frames) (from March 2009 also at extra cost for 4-cylinder models), dual exhaust pipe, and are equipped with active speed control ACC (Active Cruise Control) is available. Only the two top models 335i and 335d are fitted with one exhaust tailpipes on both sides of the rear vehicle equipped.

The models 325i, 330i, 335i and 330d are also equipped with xDrive all-wheel drive available. Since September 2008, the 320d available with xDrive, reaches only the emissions standard EU4 (320d xDrive without: EU5).

In the construction of front and rear axles each BMW chose a different path: the way made more lightweight handlebar rear axle made of steel and a 2-joint suspension strut front axle with aluminum components. The rear axle is (per page) from five drivers, paying specific attention to the corrosion was. Three of the handlebars are made of galvanized steel, and the overthrow of the rear drive axle was treated with a Tauchverzinkung. In this way the stones are exposed chassis parts largely resistant to corrosion. The front suspension consists of a double-articulated Zugstrebenachse in lightweight aluminum with a spring leg. The two separate elements Zugstrebe and arm joints allow for a virtual dot in the lower level bar, which lies outside of the components.

The coupe differs from the visually stronger than the E46 sedan. The side windows are much smaller than the sedan, the shape of the headlights strongly differentiated, the taillights are in turn the BMW-typical L-shaped design and are wider than those of the four.