BMW M340d: 340 hp, microhybrid and ECO label for the most powerful diesel in the 3 Series

After having renewed the Series 3, it is time for the Munich firm to complete the range. Now it is the turn of the BMW M340d, the most powerful diesel car in the family that arrives in saloon and family bodies.

With a power of 340 hp and a differentiated aesthetic, the M340d puts that touch of spiciness on the diesel fan with a more sporty approach for those who do not want to give up the versatility of the 3 Series. Of course, it is not a car that starts with a price affordable.

Diesel but without giving up on sportsmanship

On the outside, the BMW M340d adopts a tougher style, although without going overboard. The front bumper moldings are more sculpted, it receives a specific grille and new heel guards on the sides while at the rear it hugs a small spoiler. The brake calipers are painted blue.

Inside, there are also changes to include specific trim, a full upholstery that mixes Sensatec and Alcantara, M Multifunction steering wheel and a pair of sporty seats in the front. As standard it is equipped with the Live Cockpit Plus digital control panel.

In the front compartment an in-line six-cylinder engine makes an appearance. It is a 3.0 diesel with TwinPower Turbo technology, a supercharger with a two-stage variable geometry turbocharger and direct injection at 2,700 bar pressure or specific intake, among other measures to get the most out of it. The gearbox is the well-known Steptronic Sport with eight ratios and xDrive all-wheel drive with priority to the rear axle.

The result is figures of 340 hp of maximum power and some more than forceful 700 Nm of torque from 1,750 rpm. With these rattles, it announces an acceleration up to 100 km / h from standstill in 4.6 seconds (4.8 for the family body) and a self-limited speed of 250 km / h.

The heat engine is complemented by the addition of a 48V soft hybridization system. The mild hybrid scheme uses an electric motor that, in acceleration phases, is capable of adding 11 CV to the thermal propeller, both flattening and in acceleration phases. This starter / starter motor cannot move the car by itself.

The anti-pollution measures include a second SCR catalyst, the engine disconnection in the stops and deactivate when the car circulates at less than 15 km / h, as well as inertia displacement with the engine off. All in all, the BMW M340d announces a consumption of 5.3 to 5.7 liters per 100 km and compliance with the Euro 6d standard.

Underneath the bodywork is a chassis that has been touched by the M division. Changes include a sporty tare suspension and a lowered height by 10mm, larger caliber brakes (348 and 345mm front and rear respectively), a put on the verge of the most direct steering and, what is more interesting, a rear differential signed by M.

The rims are also specific, in 18-inch sizes and finished in black. Optionally, adaptive suspension with electronic regulation can be included.

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