Our sources say that most of the exterior changes will be related to the front bumper and kidney grille, as well as to the rear bumper. BMW will also offer LED headlights as an option for the 3 Series.
Inside, the trim and colors will get a small refresh, and the iDrive Touch Controller. No significant interior changes are expected.
Although no spectacular changes in design are to be expected, technically the facelifted 3er has changed a lot.
The previous top model 335i is replaced from the summer of 2015 by the BMW 340i with a new 330 hp six-cylinder engine. For this generation, BMW has no plans to offer an M340i M Performance model, but that might change in the next generation launching in 2019.
Rumors around a possible three-cylinder 3 Series have been circulating on the interwebs for quite some time now, but even though BMW originally planned for it, the decision was made to keep the four-cylinder engine as the entry-level 3 Series – at least for the current generation.
The new B47 four-cylinder diesel turbo will debut under the hood of the 318d and 320d models. The B57 six-cylinder diesel unit won’t arrive until the G11 7 Series launches, so the 330d and 335d xDrive will continue to use the N57 powerplant.
The biggest update coming with the facelift is the introduction of BMW 3 Series plug-in hybrids. Sold as BMW 330e or 328E, the hybrid uses a four-cylinder gasoline engine and an electric motor that provides a system output of 245 hp and comes with a fuel consumption of 2.1 liters per 100 kilometers.
All versions of the BMW 3 Series facelift will also benefit from a new suspension tuning, which will provide even more dynamic driving without compromising comfort. Minor updates are to be expected with optional equipment and control systems, like the full-LED headlights being optional.
The BMW 3 Series facelift is due out in Summer 2015.