Mercedes-Benz phasing out V-6 engines in favor of inline-6s

Mercedes-Benz 3.0-liter inline-6

Mercedes-Benz V-6 engines are not long for this world, but it’s not all bad news. Ola Källenius, head of Mercedes research and development, did confirm the brand will phase out V-6 engine, but it means a return of the inline-6.

reported on Källenius’ comments on Tuesday after a roundtable interview at the 2018 Detroit auto show. The strategy behind new inline-6s and the V-6’s retirement surrounds a shift to more inline-4 powered vehicles. The inline-6 and inline-4 are natural partners, just like the V-8 and V-6 engine were for decades, the R&D chief said.

Källenius said Mercedes-Benz’s inline-4 and 6 engines “are branches of the same tree,” and they can be built on the same production line. The silky smooth operation of the 6 is but a cherry on top, he added.

The German luxury brand showed its first inline-6 engine, dubbed the M256, displacing 3.0-liters in 2016. The engine features a 48-volt mild-hybrid system with an integrated starter generator. The unit replaces the standard starter and generator with a single more powerful unit placed between the engine and transmission sans belts. The design also helps overcome one of the inline-6’s downsides: its overall length.

The ISG can also add a 20 horsepower and 162 pound-feet of torque boost during high-load situations, and Mercedes-Benz proclaimed it will offer V-8-like performance with 6-cylinder efficiencies.

Although the brand is all-in on inline-6 engines, the change won’t happen overnight. also reported there are no plans to place the engine in the C-Class, but the United States market will see the engine in a new E53, CLS450, and CLS53. But the best may be yet to come. Last year, Mercedes-AMG announced it too has an inline-6 based on the M256 in the works. We can’t wait to see how much power that engine will produce and in what vehicles it will be used.

Check Also

Rolls-Royce Cullinan’s tailgate seats are perfect for watching the kid’s soccer game

Rolls-Royce is almost ready to unveil its first-ever SUV—ahem, high-sided vehicle—and the automaker is clearly excited. After last week confirming the Cullinan name, Rolls-Royce on Wednesday revealed a pair of automatic tailgate seats that would be perfect for watching the kid's soccer game; or for the few owners who may actually take their...

New 2019 Volvo V60 first look: Volvo hitches its wagon to its own rising star

Volvo's history is closely linked with wagons that could withstand severe punishment. Now, its future is linked with small-displacement powertrains and selling cars like Netflix. The new Volvo V60 appears to have one tire in the past and three more in the future. The 2019 Volvo V60 was unveiled Wednesday in Stockholm, the second 60-Series vehicle based on...