Fresh Mercedes Trio.5-liter V6 and Four.6-liter V8 engines
7 May two thousand ten 07:24:47
The fresh Three.5-liter V6 Mercedes engine produces three hundred six HP (225 kW) and three hundred seventy Nm of torque (20 Nm more than before) while fuel efficiency has been improved to 7.6-litres per one hundred Km, which is twenty four percent less than its predecessor.
As for the fresh Four.6-liter V8 Mercedes engine, power output has been enlargened by twelve percent to four hundred thirty five HP (320 kW) and seven hundred Nm of torque (from five hundred thirty Nm). The Four.6-litre V8 has a 0.8-litres smaller capacity and fuel consumption has been enhanced by thirty two percent.
To give you some specific numbers, the CL five hundred consumed 12.3-litres per one hundred Km and had CO2 emissions of two hundred eighty eight g/Km, while the fresh V8 enables consumption figures of 9.Five litres of fuel per one hundred Km and CO2 emissions of two hundred twenty four g/Km.
More details referring to the fresh Mercedes Three.5-liter V6 and Four.6-liter V8 engines in the official press release below.
Mercedes press release :
Mercedes-Benz is setting previously unachievable efficiency standards in the premium segment with entirely freshly developed V6 and V8 engines. The fresh V8 engine has a displacement of four thousand six hundred sixty three cc and develops an output of three hundred twenty kW (435 hp), which is around twelve percent more than its predecessor despite approx. 0.8 litres less displacement. Torque has enlargened from five hundred thirty Nm to seven hundred Nm – i.e. by no less than thirty two percent. Fuel consumption has however been diminished by twenty two percent. With the same three thousand four hundred ninety nine cc displacement as its predecessor, the fresh V6 engine develops two hundred twenty five kW (306 hp). Torque has enhanced from three hundred fifty Nm to three hundred seventy Nm. Here too, the improvement
“The fresh six and eight-cylinder engines from Mercedes-Benz are a unique synthesis of effortless power delivery, convenience and efficiency,” says Dr. Thomas Weber, the member of the Daimler AG Executive Board responsible for corporate research and development at Mercedes-Benz Cars. “Both impress with refinement at the highest level, as well as exemplary environmental compatibility.”
The fresh Mercedes-Benz engine family is uncompromisingly based on modularisation. It permits the use of a begin/stop function, 4MATIC all-wheel drive and combination with a hybrid module.
The V8 is in a fresh league of its own
On the basis of its predecessor, the fresh V8 has undergone concerted further development. For example, it has a 15-percent smaller displacement (4663 cc rather than five thousand four hundred sixty one cc) but generates three hundred twenty kW (435 hp) and therefore around twelve percent more output than the preceding unit (285 kW/388 hp). Whereas the current CL five hundred consumes 12.Trio litres per one hundred kilometres, this figure drops to 9.Five litres with the fresh engine – a reduction of twenty two percent. CO2 emissions have likewise fallen by twenty two percent, from two hundred eighty eight g/km to two hundred twenty four g/km – an outstanding figure for this spectacle class. At the same time torque has been raised from five hundred thirty Nm to seven hundred Nm – an increase of thirty two percent.
As the high maximum torque is already available from one thousand eight hundred rpm, the fresh high-tech V8 already exhibits an outstanding power delivery at low engine speeds, together with smoothness and refinement that is remarkable even for an eight-cylinder.
In the fresh V8, Mercedes-Benz engineers primarily achieved a high output for a lower displacement by using two turbochargers — one for each bank of cylinders. The chargers were configured to provide high torque even at low engine speeds – compared to the previous engine the result is an increase of more than forty percent at two thousand rpm. An outstanding six hundred Nm is available inbetween one thousand six hundred and four thousand seven hundred fifty rpm. The driver therefore perceives no turbo delay, but practices the same pleasant and effortless spectacle from the fresh V8 as that delivered by a mighty, naturally aspirated 7-litre engine.
The V6 particularly impresses with its low fuel consumption
The fresh V6 engine is naturally aspirated, and has the potential for future use of a turbocharger thanks to the modular design concept. The most striking switch inbetween the fresh V6 unit and its predecessor is a reduction in the V-angle inbetween the cylinder banks from ninety degrees to sixty degrees. This enabled the balancer shaft countering primary stimulations to be omitted, and as a result the driver registers an outstanding level of convenience.
A totally fresh intake and harass gas system with a variable-resonance intake manifold and optimised airflows was also developed for the fresh V6. This enabled the output of the three thousand four hundred ninety nine cc engine to be enhanced to two hundred twenty five kW (306 hp) (Previous engine of the same displacement in the S-Class: two hundred kW/272 hp). Torque has enlargened from three hundred fifty Nm to three hundred seventy Nm, and is available inbetween three thousand five hundred and five thousand two hundred fifty rpm.
The improvement in fuel consumption is particularly remarkable. The S three hundred fifty with the fresh V6 engine consumes just 7.6 litres per one hundred kilometres (CO2 emissions: one hundred seventy seven g/km), which makes it twenty four percent more economical than its predecessor (Ten.0 l/100 km). It also makes the fresh V6 the benchmark in its segment for a comparable output (provisional figures).
Innovative technology makes V6 and V8 engines fit for the future
Both the fresh V6 and the fresh V8 from Mercedes-Benz have aluminium crankcases, pistons and cylinder goes. The crankshaft, connecting rods and valves are of special forged steel.
The technology package in the fresh engine generation includes a number of fresh developments that are unique in this combination:
* In conjunction with begin/stop technology, shift point adjustment and specific friction-reducing measures, improvements in day-to-day fuel consumption by more than twenty percent are possible.
* Power consumption by ancillary units has been diminished. These include an optimised water pump with 2nd-generation thermal management, a demand-controlled oil pump, a volume-controlled high-pressure fuel pump and an intelligent generator management system.
With its new-generation V-engines, Mercedes-Benz is clearly demonstrating that with concerted further development, internal combustion engines still have a superb deal of potential, and that V6 and V8 engines with their high level of refinement are fit for the future.
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