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Old 08-11-2005, 04:58 AM   #1 (permalink)
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Date registered: Jul 2005
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S Class Engines

Looking at the pre release info seems that the new engines will be a V6, a new V8 replacing the current 302 HP engine, a new V12, and then in early 06 a new diesel. Anyone know if they will also have a replacement for the current S430 engine?
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Old 08-11-2005, 09:41 AM   #2 (permalink)
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RE: S Class Engines

i heard about an S450 in the near future, there has got to be something to go between the 350 and new 500, and then don't forget there will soon be a diesel electric hybrid for Europe and a petrol electric for the US! yey my first post lol!!
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Old 08-14-2005, 10:52 AM   #3 (permalink)
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RE: S Class Engines

This is from Mercedes-Benz press release:

"The engines in the Mercedes-Benz S-Class: World premiere of a new eight-cylinder unit - V6 and V12 engines with considerably more output and torque

Stuttgart, Aug 12, 2005
The engines for the new Mercedes-Benz S-Class are new or further developments which offer up to 26 percent more output and up to 15 percent more torque then the preceding series. Fuel consumption is reduced by up to nine percent. In autumn 2005 a new 5.5-litre eight-cylinder engine developing 285 kW/388 hp will celebrate its world premiere together with the luxury saloon. The range of outputs from the engines in the S-Class will extend from 173 kW/235 hp in the S 320 CDI to 380 kW/517 hp in the twelve-cylinder S 600.
The newly developed eight-cylinder unit is the top model in the new generation of Mercedes-Benz V-engines which was successfully introduced in mid-2004. Equipped with four-valve technology, variably adjustable intake and exhaust camshafts, a two-stage intake module and tumble flaps in the intake ducts, the new V8 is among the most powerful yet economical engines in its displacement class. Maximum torque is also significantly improved compared with the previous V8 engine; it has increased by around 15 percent to 530 Newton metres, and is available within a wide engine speed range between 2800 and 4800 rpm. As a result the eight-cylinder powerplant offers driving pleasure more typical of a sports car. The new S 500 accelerates from zero to 100 km/h in 5.4 seconds (previous model: 6.3 seconds).

Despite the 26 percent higher output, the NEDC (combined) fuel consumption remains at the level of the preceding model at 11.7 to 11.9 litres per 100 kilometres.

Technical highlights in the new eight-cylinder engine also include special shifting camshafts. These reduce the inherent pressure fluctuations in the exhaust train and thereby considerably improve the engine’s gas cycle. This makes itself felt among other things by smoother running and higher torque in the lower and medium engine speed ranges.

The new Mercedes eight-cylinder employs the latest lightweight construction principles, with an aluminium crankcase, low-friction cylinder liners of aluminium/silicon alloy, a forged steel crankshaft and weight-optimised connecting rods. In addition to internal exhaust gas recirculation and secondary air injection, Mercedes-Benz uses two close-coupled catalytic converters with linear oxygen sensors to ensure low exhaust emissions. Thanks to its up-to-date engine technology and efficient emission control system, the new eight-cylinder engine complies with the most stringent exhaust emission standards now in place, and also has the potential to meet the limits planned for the future.

V6 engine with nine percent lower fuel consumption

The two six-cylinder engines for the new S-Class are likewise new developments. The S 350 is powered by the 200 kW/272 hp V6 engine which entered series production in mid-2004. Compared to the previous V6 petrol engine in the S-Class, the new high-tech power unit delivers around eleven percent more output, while saving one litre of fuel per 100 kilometres. The combined NEDC fuel consumption is 10.1 to 10.3 litres per 100 kilometres. The new S 350 accelerates from zero to 100 km/h in 7.3 seconds, and is therefore 0.3 seconds faster than its predecessor.

New six-cylinder CDI engine and more powerful twelve-cylinder unit from the beginning of 2006

From the first quarter of 2006 the new 173-kW/235-hp V6 diesel engine will be added to the range available for the S-Class. This supersedes the previous in-line six-cylinder unit of the S 320 CDI, improving output by 15 percent. Maximum torque is increased from 500 to 540 Newton metres, which is available between 1600 and 2800 rpm. This up-to-date direct-injection diesel unit is equipped with third-generation common-rail technology. Its advanced features include rapid and precise piezo-injectors, as well as a maximum injection pressure of up to 1600 bar. The maintenance-free particulate filter developed by Mercedes-Benz is standard equipment in the new S 320 CDI in a number of countries.

The new top model in the S-Class will also become available from the beginning of 2006. Thanks to an improved biturbo engine the twelve-cylinder S 600 Saloon develops an output of 380 kW/517 hp –12 kW/17 hp more than previously. Maximum torque increases from 800 to 830 Newton metres.

Mercedes-Benz equips the V6 and V8 models in the new S-Class with the unique 7G-TRONIC seven-speed automatic transmission as standard."
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Old 08-30-2005, 09:27 PM   #4 (permalink)
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RE: S Class Engines

I think that they should replace the 430 engine with the 350 v6 in North America since the output specs are nearly identical.

I would love to see a 320CDI version though over here though. That would be my choice, unless the new 420CDI was brought over.


When will MB learn, North Americans want diesels, especially with fuel prices. Build them, people will buy them.
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Old 09-28-2005, 01:53 AM   #5 (permalink)
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RE: S Class Engines

According to November "What Car" (UK Mag)the engines are
3.5 V6 (272)
5.4 V8 (388)
5.5 V12 (517)
2.9TD (235) called 320cdi

These engines are maybe for UK only.

gary
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Old 11-14-2005, 10:54 PM   #6 (permalink)
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RE: S Class Engines

Article Quote from Car and Driver December 2005 issue page 42.

"Mercedes showed off two different hybrid versions of the new S-Class at Frankfurt Auto Show.

One of the hybrids, the so-called Blutec diesel-electric, employs a squeaky-clean diesel engine that has an exhaust-treatment system that reduces oxides of nitrogen into water and nitrogen.

The other hybrid uses Mercedes' gasoline 3.5 liter V-6 and adds direct fuel injection and an electric motor between the engine and transmission. Mercedes uses the electric motor as a starter for the gas engine, which shuts off when the car is stopped. The electric motor can also briefly send power to the wheels before the engine is fully started. Mercedes claims a 25% improvement in European fuel-economy tests."

Whether or not these will go into production is a mystery. However, U.S. bound cars are going to have...
4.7L V-8 with 335hp and 339 lb-ft;
5.5L V-8 with 382hp and 391 lb-ft; and
turbocharged 5.5L V-12 with 510hp and 612 lb-ft.
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Old 11-15-2005, 01:29 PM   #7 (permalink)
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RE: S Class Engines

In the end of 2006 there will be a 4667cc/340hp V8 available. It's just the V8 version of current 3.5L V6 with 272hp.
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Old 05-26-2006, 11:38 PM   #8 (permalink)
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How about the S420 CDI?

http://www.autospies.com/article/ind...articleId=4610
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