Mercedes Diesel Hybrid Tech Comes to the S Class

2014 Mercedes Diesel Hybrid

Mercedes unveiled its newest C-Class models a few weeks ago at the Detroit Auto Show, along with the twin-turbo, V12 powered S600 super-sedan that- regardless of how MB’s PR department wants to spin it- ain’t green. News out of Mercedes’ German HQ this week, however, indicates that Mercedes is bringing one of its greenest drivetrains to the S class flagship line, in the form of the new S300 Bluetec diesel hybrid.

At 4.4 liters per 100 km (about 53 MPG), the new S300 Bluetec diesel will easily be the most fuel-efficient car in its size and price category. Here’s more on the new diesel hybrid model from Mercedes’ official press release …


Mercedes-Benz is extending the model range of the successfully launched S-Class with the particularly economical S 300 BlueTEC HYBRID, the high-traction S 350 BlueTEC 4MATIC … the new models can be ordered with immediate effect, and will be in dealer showrooms in March 2014.

Just a short time after the model changeover, the new S-Class has already taken the top sales position in its segment worldwide. Now Mercedes-Benz is extending the range with the particularly economical S 300 BlueTEC HYBRID, the luxurious S 600 flagship model and the high-performance S 65 AMG Saloon. With combinations of short and long wheelbases, rear-wheel drive and 4MATIC, the S-Class range now therefore boasts 16 versions only months after the market launch.

… following the successful launch of the S 400 HYBRID, the second hybrid model in the Mercedes-Benz S-Class is now entering the market: The S 300 BlueTEC HYBRID makes do with 4.4 litres of diesel per 100 km in the combined cycle (CO2: 115 g/km), and complies with the criteria for energy efficiency class A+. This means that over the course of ten years, Mercedes-Benz has cut fuel consumption in the 150 kW performance class by almost half.

In the S 300 BlueTEC HYBRID, Mercedes-Benz has combined the 2.2-litre four-cylinder diesel engine developing 150 kW (204 hp) with a powerful hybrid module. Its 20 kW electric motor is positioned between the internal combustion engine and the automatic transmission. It assists the diesel engine when the car is accelerating (boost effect) and, in alternator mode, is used for the recuperation of braking energy, although driving under electric power alone is also possible. The S 300 BlueTEC HYBRID is available with either a short or long wheelbase. Prices: €80,920 and €86,453.50 (recommended retail price including 19% VAT for Germany).

One of the world’s most economical V6 diesels is now also available with all-wheel drive: the S 350 BlueTEC 4MATIC develops an output of 190 kW (258 hp) and 620 Nm of torque from a displacement of 2987 cc. With a combined fuel consumption of 5.9 litres of diesel per 100 kilometres (both with short and long wheelbase), it achieves the same level as the preceding four-cylinder model S 250 CDI. The S 350 BlueTEC 4MATIC with the second-generation AdBlue® emission control system costs €84,728 and €90,261.50 respectively …


… and you can check out the new line-up of Mercedes-Benz’ diesel hybrid S in the photo-gallery, below, which shows some of the new-for-2014 options like the Heads-up Display and AMG’s sporty-looking new bodykit. As always, we’d love to know what you think- so start complaining about Mercedes not selling their cool cars in the US in the comments section!

Source | Photos: Daimler/Mercedes-Benz.

Jo Borrás

I've been in the auto industry 1997, and write for a number of blogs in the IM network. You can also find me on Twitter, at my Volvo fansite, out on two wheels, or chasing my kids around Oak Park, IL.