The Summer of 2019 will see the arrival of the BMW M340i and M340i xDrive Sedans. The new BMW M Performance models will showcase the full dynamic potential of the new BMW 3 Series. An updated six-cylinder inline gasoline engine, M Performance chassis tuning, optional xDrive intelligent all-wheel drive and the standard M Sport rear differential will deliver performance attributes that will satisfy and impress any driver.
The rear-wheel drive BMW M340i will offer the pure driving experience that 3 Series enthusiasts have enjoyed for the past 40 years. With reduced weight compared to its all-wheel drive sibling and enhanced steering feel compared to the outgoing models, the M340i Sedan will be the driver’s exhilarating driving companion. The BMW M340i xDrive Sedan adds the increased traction of all-wheel drive to improve the new model’s abilities in both dry and adverse road conditions.
The new version of the straight-six engine, developed for the BMW M340i and M340i xDrive Sedans, produces 382 hp and peak torque of 369 lb-ft. A 0–60 mph time of 4.2 seconds (provisional figure) takes this new BMW M Performance model into territory previously inhabited by BMW M cars.
The 3.0 liter, six-cylinder, inline engine in the BMW M340i and BMW M340i xDrive Sedans features an aluminum crankcase and aluminum cylinder head. A new, single, Twin-scroll turbocharger with an integral, compact, steel exhaust manifold and impellers that weight approximately 25% less than those of preceding models, builds boost pressure more rapidly. Fuel is supplied by means of new High Precision Injection technology which allows injection pressures up to 350 bar. The current version of M TwinPower Turbo technology also features VALVETRONIC fully variable valve control and Double VANOS variable camshaft control.
Power and acceleration are accompanied by the characteristic sound of the six-cylinder, inline engine, which has gained additional presence thanks to the dual-pipe exhaust system. In SPORT and SPORT+ modes, which can be activated via the Driving Experience Control switch, the valve-controlled exhaust system generates a particularly distinctive sound.
The new 2020 BMW M340i and M340i xDrive Sedans are equipped with the standard 8-speed Sport Steptronic transmission. The latest upgraded version of this quick-shifting sport automatic transmission features a new, optimized hydraulic control system and shorter gearing for improved response and acceleration. The 8-speed Sport Steptronic transmission’s Launch Control function optimizes traction during acceleration off the line more effectively than in previous versions and shift paddles on the steering wheel allow for manual gear selection.
Intelligent connectivity enables the sport automatic transmission to adapt its shift strategy according to the route and driving situation. Working with the standard navigation system, the 8-speed Sport Steptronic transmission uses data from this system and from the optional Active Cruise Control system’s radar sensor. This makes it possible for the transmission to avoid unnecessary gear changes when negotiating a series of fast corners and, when approaching a vehicle ahead for example, to shift down early in order to use the engine braking to scrub off speed.
The Auto Start Stop function and the coasting function available in conjunction with the 8-speed Steptronic transmission in the new BMW 3 Series Sedans also use data supplied by the optional Navigation System Professional with data from the standard BMW Active Guard driving assistance systems’ front camera. In this way, inefficient engine shutdown – for example when stopping briefly at junctions or roundabouts – can be prevented. Movement of vehicles ahead is registered in order to determine the ideal moment for the Auto Start Stop function to stop and start the engine. The coasting function is now available when either ECO Pro or COMFORT mode is selected using the Driving Experience Control switch between 9 and 99 mph. The efficiency-enhancing decoupling of the powertrain only takes place in driving situations where performance and comfort are not compromised. If the driver suddenly lifts off the accelerator, the powertrain stays connected so that engine braking can be used to support deceleration. For the same reason, powertrain disconnection is also prevented when approaching a junction or a vehicle ahead.
With fully variable power distribution between the front and rear axles, the intelligent all-wheel drive technology in the new BMW M340i xDrive Sedan ensures maximum traction, agility and vehicle stability. The rear-wheel bias of BMW xDrive supports the driving experience that driver’s expect from their BMW. The Driver Experience Control modes SPORT and SPORT+ help support more dynamic driving even further by transferring power to the rear wheels when the driver is steering into a corner for example.
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