2012 Mercedes S400HV Hybrid Review – HybridCars.com

27 Apr 2015 | Author: | Comments Off on 2012 Mercedes S400HV Hybrid Review – HybridCars.com
Mercedes S 400

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19 / 25MPG



BASE $91,000

The current edition of the S-Class flagship sedan its appearance as a 2007 model, and a mild nip and tuck facelift for As part of the refresh, the German also debuted its first hybrid, the S400 Hybrid. As the first mass-production automobile to a lithium-ion battery (the Roadster is a low-production vehicle), the Hybrid is considered a milestone.

rather than costing more than its conventionally cousin, the S550, it costs less. In fact, with a price starting at $91,850, the Hybrid is the least expensive model in the lineup.

Since its as a 2010 model, the S400 has not had any styling changes or revisions to offered.

A Different Luxury Approach

The Mercedes S-Class is for its powerful engines; from the 429 horsepower V8 and culminating with the S65 AMG the AMG-tuned V12 that produces an 621 horsepower. But instead of adding power to boost the output of a V8, the was made to offer a hybrid would appeal to a more driver: one that seeks a eco-conscious way of traveling in luxury.

Developed jointly with the S400’s hybrid system is a hybrid similar to Honda’s Motor Assist hybrid meaning it cannot be driven on power alone. The 275 horsepower V6 engine is similar to the 3.5 liter in other Mercedes cars and but this version has different heads and pistons and a modified It also uses a more combustion strategy known as the cycle, a common hybrid

The downside of the Atkinson cycle is engine torque, especially at low

That’s where the electric comes in – think of its as sort of a for a turbocharger that instead of more fuel in, effectively fuel requirements, while yielding more total The small, disc-shaped three-phase AC motor fits in the torque housing between the engine and the adapted seven-speed automatic

When called upon, it 118 pounds-feet of torque and 20 horsepower to the output to boost starting and improve passing performance. The system generates 295 horsepower and an 284 pounds-feet of torque. The compact also functions as a starter and

Energizing the motor is a 32-cell, 0.9 amp-hour, lithium-ion battery. the size of a shoebox, the battery neatly in the rear right corner of the engine bay. braking pushes electricity into the battery.

Like hybrids, the Mercedes S400 incorporates a stop-start function. the car stops at a light or in traffic, the shuts off, saving Lift off the brake pedal and the instantly revives, briskly courtesy of the electric motor.

In the hybrid system works the German precision you would

In the U.S. hybrids are about mileage, in Europe it’s emissions. The S400 Hybrid has an EPA fuel economy of 19 miles per in the city and 25 on the highway, for an average of 21 mpg – a more than a 20 percent over the S550. As for emissions, it has an low CO2 output of 186 grams per kilometer and a Super Ultra Low Emission rating from the California Air Board.

Big European Sedan Style

rivals Audi, BMW, and Lexus offer standard and wheelbase sedan models. For buyers, the S-Class comes in one version, and it’s long – more than 17-feet A deft pen, however, out a well-proportioned body to create a low and body.

The hood points and merges into a pronounced grille and wing-like headlamps. A windshield meets the roof gracefully curves rearward a shallower raked rear Prominent wheel arches the look of a big slab-sided car.

The of the design is a stately sedan a big dose of European style.

there’s small doubt the Mercedes S-Class has the most and luxurious cabin in the car business – and Rolls Royce excluded. Magazine summed it up with two “Gorgeous interior.”

Mercedes S 400

Quilted leather highlighted by wood trim dominates a quiet cabin, with an ounce of plastic to be found. is impeccable, and switches have a texture that operate a substantial mechanical feel.

An to seriously consider is massaging seats, a pampering feature Mercedes has perfected. Settings from slow and light to and vigorous. Skip the upgraded and you’ll find the standard still impressive: 16-way ventilated and heated.

The S400 is brimming with interior starting with a 15-speaker audio system, Bluetooth, interface, 7.2-GB music and a hard-drive navigation system Zagat. Optional is a dual-view screen that can show a DVD to the front seat passenger and the screen to the driver. The only quirk is the COMAND interface makes simple processes tuning the radio or adjusting controls complicated and frustrating.


HybridCars.com drove the on the roads of Southern Germany. Our loop took us from #8211; the home of Mercedes #8211; to the town of Buel and a round trip of approximately 150 The route was evenly comprised of driving on the Autobahn – where we ran at, triple digit speeds – as as moderately paced rural and narrow streets through hamlets.

Mercedes-Benz alludes to the S400h as the power of a V8, but that’s a stretch. The own numbers show the hybrid 60 mph in 7.2 seconds compared with the V8 making it in 5.4. That’s not say the is a slug.

Performance may not be exhilarating but the car surprisingly sprightly and right at on the high-speed Autobahn.

The S400 much smaller than it is. through the tight twisties of Black Forest, the hybrid flatly and with confidence. It is as and agile as its gas-powered counterpart. comes from Active Control, a suspension system continually adapts its tuning to the driving situation.

Other advancements include a pre-collision adaptive high beam lane keep assist, and cruise control.

Of course, we tracked fuel and achieved an impressive 29.3 per gallon on our 150 mile jaunt – good for a car that weighs 5,000 pounds. With stricter speed limits in the it’s reasonable to assume efficiency results will be better.


To state the the S400 Hybrid is expensive. The MSRP of $91,850 can easily and climb from there piling on the options. But for that not only are buyers getting the prestige factor, they are getting the engineering that the automaker has built its reputation on. And for up a bit – just a bit – of performance, they are in exchange an S550 with fuel economy and saving

That’s rather compelling for affluent buyers seeking a greener ride.

Prices are suggested retail price at time of publication and do not include charges, taxes or licensing.

Mercedes S 400
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