The petrol engines: Powerful, responsive and super-clean

Mar 6, 2013
Mercedes-Benz has systematically transferred the BlueDIRECT technology from the V6 and V8 engines of the Mercedes-Benz luxury class. The BlueDIRECT four-cylinder petrol engines for the new CLA-Class combine great responsiveness and exemplary power delivery with outstanding efficiency and the best emission figures in this class. The world-first CAMTRONIC, an innovative valve lift adjustment feature, makes a major contribution to this. There is a choice of 1.6 or 2-litre variants of the new four-cylinder engine family for the CLA-Class, covering a power range from 90 kW (122 hp) and 200 Nm to 155 kW (211 hp) and 350 Nm.
Thanks to BlueDIRECT and highly precise piezo-injection, the new engines already meet the Euro 6 emissions standard for petrol engines coming into force from 2015. Even the much more stringent diesel particulate limit in the Euro 6 standard is already bettered with no additional exhaust aftertreatment. This was a major motivation for introducing BlueDIRECT into this segment as well. This means that the completely newly developed generation of four-cylinder petrol engines is ideally prepared for the future.
Extremely versatile
The basis for all three petrol engine variants in the new CLA-Class is the all-aluminium M 270 engine with two chain-driven overhead camshafts and four-valve technology. This power unit is extremely versatile, and will also be gradually introduced into larger model series. In this way it also contributes to a sustained reduction in production costs. The four-cylinder can be installed transversely (M 270) or longitudinally (M 274), and combined with front, rear or 4MATIC all-wheel drive, and also with a manual, automatic torque converter or dual clutch transmission. The ECO start/stop function is always featured as standard.
The BlueDIRECT family has grown: three new petrol engines
The M 270 engine is available in three output levels in the new CLA-Class. As the CLA 180 with a displacement of 1595 cc it develops 90 kW (122 hp) and a maximum torque of 200 newton metres over a wide engine speed range from 1250 to 4000 rpm. With the basic engine and the 6-speed manual transmission the new CLA-Class accelerates from zero to 100 km/h in 9.3 seconds and has a top speed of up to 210 km/h. The fuel consumption and CO2 emission figures of 5.4 l/100 km, NEDC, combined, and 126 g/km, respectively, are so low that they possibly set a new record.
Thanks to extensive aerodynamic optimisation measures (see the corresponding section), the CLA 180 BlueEFFICIENCY Edition, whose premiere is to be in June, betters even these figures: with 5.0 litres/100 km and 118 g CO2/km, it is among the most frugal cars in its class.
The CLA 200 with the same displacement of 1595 cc develops 115 kW (156 hp) and a maximum torque of 250 Nm, which is likewise available from 1250 to 4000 rpm. It sprints from zero to 100 km/h in 8.6 seconds and has a top speed of 230, but is happy with an average 5.5 l/100 km of fuel, meaning CO2 emissions of 127 g/km.
The CLA 250 is powered by the top engine variant with a displacement of 1991 cc. The engine develops 155 kW (211 hp) and a maximum torque of 350 Nm from 1200 to 4000 rpm. Performance is at sports car level, with acceleration from zero to 100 km/h in 6.7 seconds and a top speed of 240 km/h. Nonetheless it has the best fuel consumption in this class at 6.1 l/100 km, and CO2 emissions of 142 g/km.
All engine variants are designed for customer-friendly operation with E10 premium petrol (95 RON).
Overview of technical data for the CLA-Class with petrol engine
Model
CLA 180
CLA 180 BEE*
CLA 200
CLA 250**
Number of cylinders/arrangement
 
4/in-line
4/in-line
4/in-line
4/in-line
Displacement
[cc]
1595
1595
1595
1991
Rated output
[kW/hp]
at [rpm]
90/122 5000
90/122 5000
115/156 5300
155/211 5500
Rated torque
[Nm] at [rpm]
200
1250-
4000
200
1250-
4000
250
1250-
4000
350
1200-
4000
Fuel consumption, combined
[l/100 km]
5.4 – 5.6
5.0
5.5 – 5.7
6.1 – 6.2
CO2 emissions, combined
[g/km]
126 –130
118
127 – 131
142 – 144
* BlueEFFICIENCY Edition, ** only available with dual clutch transmission
Mercedes-Benz CLA-Class, CLA 180, power output graph (german version)
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Mercedes-Benz CLA-Class, CLA 180, power output graph
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Mercedes-Benz CLA-Class, CLA 180 Blue EFFICIENCY, power output graph (german version)
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Mercedes-Benz CLA-Class, CLA 200, power output graph (german version)
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Mercedes-Benz CLA-Class, CLA 180 Blue EFFICIENCY, power output graph
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Mercedes-Benz CLA-Class, CLA 200, power output graph
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Mercedes-Benz CLA-Class, CLA 250, power output graph
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Mercedes-Benz CLA-Class, CLA 250, power output graph (german version)
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