Two extremely efficient high-performance models are joining the BMW M line-up in the premium midsize segment. The six-cylinder in-line diesel engine with BMW TwinPower Turbo technology fitted in the BMW M340d xDrive Sedan (fuel consumption combined: 5.7 – 5.3 l/100 km [49.6 – 53.3 mpg imp]; CO2 emissions combined: 149 – 139 g/km) and BMW M340d xDrive Touring (fuel consumption combined: 5.8 – 5.4 l/100 km [48.7 – 52.3 mpg imp]; CO2 emissions combined: 153 – 143 g/km) produces exceptional pulling power while attaining similarly impressive levels of efficiency. The 3.0-litre unit generates maximum output of 250 kW/340 hp and peak torque of 700 Nm (516 lb-ft). The inclusion of 48V mild hybrid technology, meanwhile, has led to a further reduction in fuel consumption and emissions. Thanks to their comprehensive arsenal of exhaust gas treatment technologies, including an SCR catalytic converter with AdBlue injection, the most powerful diesel variants of the new BMW 3 Series also comply with the future Euro 6d emissions standard.
The arrival of the new BMW M340d xDrive Sedan and BMW M340d xDrive Touring in April 2020 bring that inimitable M feeling to a diesel-fuelled BMW 3 Series for the first time. The potent engine in the new BMW M models teams up with an eight-speed Steptronic Sport transmission, bespoke chassis technology and intelligent all-wheel drive. M Sport suspension – including variable sport steering – and M Sport brakes are fitted as standard on both models, likewise the M Sport differential. M-specific exterior features with optimised aerodynamic properties are part of an overall package that leaves no stone unturned in the provision of supreme performance. The new BMW M340d xDrive Sedan accelerates from 0 to 100 km/h (62 mph) in just 4.6 seconds, while the new BMW M340d xDrive Touring completes the same sprint in 4.8 seconds. The combination of pulsating driving characteristics and a cockpit focusing squarely on the enjoyment of intense driving pleasure guarantees an enthralling experience of high performance at work.
Exceptional power delivery meets exemplary efficiency: the six-cylinder in-line diesel engine with BMW TwinPower Turbo technology and 250 kW/340 hp.
The new M models in the BMW 3 Series line-up owe their unmistakable character in no small part to outstanding power delivery coupled with rock-bottom fuel consumption and emissions given the performance at hand. Their 3.0-litre six-cylinder in-line diesel engine features a crankcase and cylinder head both made from aluminium. Frictional losses in the base engine are reduced by measures including a wire-arc sprayed steel coating for the cylinder bores.
The power unit’s BMW TwinPower Turbo technology comprises a two-stage turbocharging system with optimised thermodynamics and direct charge air cooling, along with common-rail direct injection using piezo injectors. To ensure exceptionally sharp turbocharger response, the system’s high-pressure and low-pressure stages both feature variable turbine geometry. The further developed direct injection system, whose injectors now operate at a maximum 2,700 bar, ensures a precisely metered supply of fuel and extremely clean combustion. Integral pressure sensors enable up to ten injections per stoke. Engine response and efficiency also benefit from an intake system with optimised air routing, whose upgraded design enhances the power unit’s acoustics as well. Extensive engine encapsulation measures ensure the straight-six is particularly easy on the ears – and at the same time helps to optimise warm-up behaviour. Specially developed for the new BMW M340d xDrive Sedan and BMW M340d xDrive Touring, the diesel unit’s peak torque of 700 Nm (516 lb-ft) is on stream from just 1,750 rpm, while maximum output of 250 kW/340 hp arrives at 4,400 rpm.
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SOURCE: BMW Group
