Tech Analysis: 2012 BMW 3 Series

BMW has packed more engineering into the new 2012 3 series than any 3er before it. The new F30 iii series is a revolutionary automobile that departs from its predecessor more than looks might advise. Here is a look under the skin to testify you lot what's new on BMW's about of import sedan.

Let's outset at the heart of the thing. The iii series provided for testing today features BMW's new single turbo (twin roll) four cylinder unit. Packed within this compact engine you will discover an updated version of Valvetronic controlling valve lift and timing on both the intake and frazzle side, BMW'due south directly injection, and enough balancing tech to fool you into believing in that location are a few more than pistons throwing punches than in that location really are.

The engine has an internal design code of "N20" and undoubtably, this hip-to-enthusiasts lawmaking will get a favorite for generations. Why? Simply put: because BMW's new 2.0 Liter four cylinder manages the output of a six cylinder with the economy of a four – all while lightening the front end and moving the weight further aft. Anyone who frequents the racetrack volition appreciate these details more than the stigma a four cylinder engine may have in the Due north American market place.

Power output is a healthy 240 hp and 260 lb-ft of torque – all while obtaining significantly meliorate fuel milage. In fact, the new F10 5 serial with the N20 is managing better fuel milage than the smaller E90 3 series when equipped with the now retired naturally aspirated 6 cylinder that the new iv cylinder replaces. New design features which aid boost milage are found in the discreet use of ancillaries, for example the 3er now features a variable output oil pump and coolant pump, on-demand electronic assistance steering and an on-demand alternator. All of these features incrementally combine to make a large contribution to efficiency.

A new ZF sourced 8-speed automated is both fast-shifting and efficient as information technology translates the power to the rear wheels (and somewhen all iv wheels in subsequently xDrive models). When partnered with BMW's "Eco Pro" applied science, the transmission works to boost milage past altering shift points, and helping you ameliorate modulate your enthusiastic right pes. Non to worry, this setting can be switched all the style to "Sport Plus" which holds gears longer and downshifts earlier.

On to the chassis, the new three serial makes extensive utilise of high-strength steel to both lighten and strengthen the car. Along with the loftier-strength steel in the chassis – greater utilize of aluminum and composites both in the interior and outside of the iii series accept helped information technology to drop 40 kg (88 lbs) from its predecessor despite a nine.four cm (3.7″) stretch in the length and a ane.3 cm (0.5″) gain in pinnacle. The new 3 serial now tips the scales at 1,570 kg (3460 lbs), which is a respectable figure for a auto of this size. The all-important weight distribution ratio has been maintained at 50:l, driver's rejoice.

Aerodynamics have non been left out of the equation, and afterward countless hours in BMW'south own rolling current of air tunnel they have constitute a elevate co-efficient of simply 0.26 Cd. We were expecting BMW to characteristic their play tricks front end wheel air-curtain design as establish on the 1M, and true to expectations, all renditions of BMW's new iii series characteristic this unique aerodynamic pattern solution to reduce elevate and amend efficiency.

BMWBLOG is about to get behind the cycle of BMW's new 3 serial to bring yous our kickoff driving impressions both on the road and racetrack. Stay tuned!

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Source: https://www.bmwblog.com/2011/11/30/tech-analysis-2012-bmw-3-series/