hawk20
MB Enthusiast
STUNNING NEW DIESELS FROM MB
For some while there have been grumbles on this forum about MB diesels no longer being the pinnacle of economy. BMW in particular have made major improvements to their fuel economy since last autumn. Below I summarise, from various sources, what is coming from MB.
A brand new, some say revolutionary, new diesel engine will arrive Autumn 2008, initially in the C class. It will have twin turbos and will offer both a lot more power and use a lot less fuel. It will provide significant reductions in CO2 emissions. The new engine has been under intensive development for over 48 months. According to MB, the prototype was ready in 2005 but since then it has undergone 100,000 hours on the test rig in order to achieve optimum performance characteristics under all conditions. Over a distance of ten million test kilometres in a variety of vehicles, the engine has been proved from desert heat to the cold of the polar regions, withstanding dust, mud, water and the very harshest treatment in the process.
The new engine is launched in autumn 2008, when the first variant will be launched in just the C-Class initially. The power unit is due to be deployed in various model series from Mercedes-Benz, returning outstanding fuel consumption figures in all cases. It can be installed both lengthways and crossways and is envisaged for all-wheel-drive vehicles too. Naturally, the new engine can be supplemented by the cutting-edge BlueTec emissions control system developed by Mercedes-Benz, and it is also earmarked for use as a fuel-efficient internal combustion engine in hybrid vehicles.
Mercedes say that the new power unit from the Untertürkheim plant really does charter territory from which diesel engines - and four-cylinder units particularly so - have previously been excluded. It redefines standards for power output and torque on the one hand and for fuel consumption and exhaust emissions on the other, setting benchmark figures which no other comparable series-production engine is able to match at the current time.
In its most powerful variant, the new four-cylinder unit musters up 150 kW/204 hp from its 2143 cubic centimetres, meaning that it delivers around 20 per cent more power than the engine it replaces. At the same time, peak torque has risen from 400 Nm to 500 Nm, equating to an increase of 25 per cent. Despite the 25 kW increase in output, the new four-cylinder diesel burns substantially less fuel than its predecessor, which was itself highly economical. As a consequence, CO2 emissions are reduced by as much as 13 per cent and the new four-cylinder diesel unit already complies with the future EU5 emissions standard.
When fitted in the C-Class, the new 150-kW unit burns just 5.4 litres of diesel per 100 kilometres (NEDC), 0.5 litres less than previously. That’s about 52 mpg combined figure (same as my diesel A class). And when powered by the 125-kW/170-hp variant that is also newly available, the C‑Class returns even lower fuel figures of 5.1 litres for every 100 kilometres (a drop of 0.8 litres). That is about 55mpg combined. As a consequence, CO2 emissions are reduced by 8 and 13 per cent respectively to 143 and 136 g/km. The Mercedes-Benz engineers have also succeeded in further reducing the amount of untreated engine emissions. Even without an active denoxification process, the new four-cylinder diesel already meets the future EU5 emissions standard.
“This takes our new four-cylinder unit into a realm which has so far been the preserve of three-litre six-cylinder diesel or large V8 petrol engines - all combined with exemplary fuel economy,” commented Dr. Thomas Weber, who is responsible for Group Research and Development at Mercedes-Benz Cars on the Daimler AG Board of Management.
Or to put it another way, this engine in the new C class will deliver similar performance to the S class 320cdi, but with emissions and economy levels equal to the current diesel A class models!
My A180cdi emits 147 gms/km of CO2. The new C class diesel will emit between 136 and 143 gms/km thus giving a good saving on VED as well as on fuel.
For more info see: -
http://benzinsider.com
http://www.worldcarfans.com/9080410.007/new-mercedes-4-cylinder-diesel-engine
For some while there have been grumbles on this forum about MB diesels no longer being the pinnacle of economy. BMW in particular have made major improvements to their fuel economy since last autumn. Below I summarise, from various sources, what is coming from MB.
A brand new, some say revolutionary, new diesel engine will arrive Autumn 2008, initially in the C class. It will have twin turbos and will offer both a lot more power and use a lot less fuel. It will provide significant reductions in CO2 emissions. The new engine has been under intensive development for over 48 months. According to MB, the prototype was ready in 2005 but since then it has undergone 100,000 hours on the test rig in order to achieve optimum performance characteristics under all conditions. Over a distance of ten million test kilometres in a variety of vehicles, the engine has been proved from desert heat to the cold of the polar regions, withstanding dust, mud, water and the very harshest treatment in the process.
The new engine is launched in autumn 2008, when the first variant will be launched in just the C-Class initially. The power unit is due to be deployed in various model series from Mercedes-Benz, returning outstanding fuel consumption figures in all cases. It can be installed both lengthways and crossways and is envisaged for all-wheel-drive vehicles too. Naturally, the new engine can be supplemented by the cutting-edge BlueTec emissions control system developed by Mercedes-Benz, and it is also earmarked for use as a fuel-efficient internal combustion engine in hybrid vehicles.
Mercedes say that the new power unit from the Untertürkheim plant really does charter territory from which diesel engines - and four-cylinder units particularly so - have previously been excluded. It redefines standards for power output and torque on the one hand and for fuel consumption and exhaust emissions on the other, setting benchmark figures which no other comparable series-production engine is able to match at the current time.
In its most powerful variant, the new four-cylinder unit musters up 150 kW/204 hp from its 2143 cubic centimetres, meaning that it delivers around 20 per cent more power than the engine it replaces. At the same time, peak torque has risen from 400 Nm to 500 Nm, equating to an increase of 25 per cent. Despite the 25 kW increase in output, the new four-cylinder diesel burns substantially less fuel than its predecessor, which was itself highly economical. As a consequence, CO2 emissions are reduced by as much as 13 per cent and the new four-cylinder diesel unit already complies with the future EU5 emissions standard.
When fitted in the C-Class, the new 150-kW unit burns just 5.4 litres of diesel per 100 kilometres (NEDC), 0.5 litres less than previously. That’s about 52 mpg combined figure (same as my diesel A class). And when powered by the 125-kW/170-hp variant that is also newly available, the C‑Class returns even lower fuel figures of 5.1 litres for every 100 kilometres (a drop of 0.8 litres). That is about 55mpg combined. As a consequence, CO2 emissions are reduced by 8 and 13 per cent respectively to 143 and 136 g/km. The Mercedes-Benz engineers have also succeeded in further reducing the amount of untreated engine emissions. Even without an active denoxification process, the new four-cylinder diesel already meets the future EU5 emissions standard.
“This takes our new four-cylinder unit into a realm which has so far been the preserve of three-litre six-cylinder diesel or large V8 petrol engines - all combined with exemplary fuel economy,” commented Dr. Thomas Weber, who is responsible for Group Research and Development at Mercedes-Benz Cars on the Daimler AG Board of Management.
Or to put it another way, this engine in the new C class will deliver similar performance to the S class 320cdi, but with emissions and economy levels equal to the current diesel A class models!
My A180cdi emits 147 gms/km of CO2. The new C class diesel will emit between 136 and 143 gms/km thus giving a good saving on VED as well as on fuel.
For more info see: -
http://benzinsider.com
http://www.worldcarfans.com/9080410.007/new-mercedes-4-cylinder-diesel-engine
Last edited:
+ Bluetec..
