Is the story of the M50d's quad-turbo diesel engines coming to an end? Even if there is no official announcement from BMW, the well-informed websites Bimmertoday and BMW Blog report that this inline six-cylinder diesel, which peaks at 400 horsepower, will likely stop in 2020, sacrificed on the altar of European standards.
A worthy successor is not planned and, instead, it is the TwinTurbo diesel 313 horsepower of the 40d models which will take over at the top of the hierarchy. The M50d is used in the BMW M550d Sedan and Touring, the 750d and 750Ld XDrive, and more recently the BMW X5, X6 and X7. The BMW 4-turbos diesel has been at the top of the BMW diesel range since its launch in 2016. With 400 horsepower in the performance version and 760 Newton meters of torque, it enables top-notch performance with fairly controlled consumption.
UE 1 – large motors 0
But the upcoming changes in CO2 emissions from the car fleet in the EU have put a big obstacle to this type of engine. As a reminder, under an agreement concluded in 2013, the European Commission gives car manufacturers until December 31, 2020 to reduce carbon dioxide (CO2) emissions from passenger cars to an average of 95 grams per kilometer, failing what groups will have to pay a fine of 95 euros per car sold and … per excess gram.
A very ambitious goal in such a short time, that many manufacturers fear that they will not be able to reach (the current average is around 120g / km). And when we add, for example, the new scale of the ecological penalty which will come into force in France, we can imagine the stress! It will be noted that the objectives to be achieved have moved a little further, the average level of emissions having even started to rise since 2017, the fault of the disaffection for diesel, consecutive to Dieselgate, which redirected customers towards gasoline , and in the fashion of large SUVs which has also contributed to increasing emissions and average consumption of automotive pacs.
This race against time, and against salt fines to which German manufacturers would be among the most exposed, explains the threat. For example, it weighs on Mercedes’s AMG models, which could be overlooked for many of them. It would thus justify the imminent sacrifice of the BMW M50d, whose significant development costs are not sufficiently amortized and whose C0² emissions range from 173g / Km up to 204g / Km for the X6. For info, according to the penalty scale coming into effect on 1st March 2020 (which will follow the transitional scale of January-February), we go from 2726 to 12552 euros penalty for the X5 and from 14273 to the maximum ceiling of 20,000 euros for the X6!
Nothing precise has yet filtered on a new high-end engine, but it could adopt a hybrid architecture.
Our opinion, by blogauto.com
Let it be said, the forced transformation of the car fleet wanted by the EU – which perhaps forgets the ability of the majority of consumers to follow the movement – threatens to disappear an entire section of culture and knowledge -make mechanical from our manufacturers. Purists will no doubt be less sad. But in this frantic hunt for the gram of C0², the solution may not come only from the engines. We could also look at the sizes and types of vehicles that are marketed, and the tastes of consumers, who have turned in recent years towards profitable models always bigger, heavier and therefore more polluting. As the other said, light is right ?