The highlights of the 4-cylinder diesel engine
The 4-cylinder diesel engine demonstrates hallmark Mercedes qualities: they are modest when it comes to fuel consumption, are low on emissions and impress with their significantly improved quiet-running characteristics and their reduced vibrations.
In order to keep the engine weight as low as possible, the engine is fitted with a crankshaft with four counterweights and a crankcase bearing with individual bearing caps.
The new CLA 200 d has a power output of 100 kW (136 hp) and maximum torque of 300 Nm. As the fourth generation of common-rail diesel technology the engine boasts an injection pressure increased to 1800 bar, optimised combustion chambers plus precise solenoid injectors. The high ignition pressure and a turbocharger with a variable nozzle turbine ensure an effortlessly superior torque curve and corresponding pulling power in every engine speed range.
The highlights of the 4-cylinder petrol engine
The 4-cylinder petrol engine of new 200 comes with 135 kW (183 hp) and a maximum torque of 300 Nm. This engine is extremely low on emissions. The combination of the third-generation Mercedes-Benz high-pressure direct injection system with precise piezo injectors and the enhanced spray-guided combustion process facilitates virtually total combustion and thus allows the fuel to be used particularly efficiently. The variable valve control results in an optimum cylinder charge level which has a beneficial effect on fuel consumption, as do the lower weight, reduced internal friction and ancillaries controlled on an on-demand basis. Turbocharging makes for enhanced responsiveness and higher torque in every engine speed range.
7-speed dual-clutch transmission 7G-DCT
The dual-clutch transmission combines the comfort of a 7-speed automatic transmission with the driving dynamics of a manual transmission. The 7G-DCT consists of two sub-transmissions, one of which transfers the tractive power to the wheels while the other is preselecting the next gear. This leads to fast, smooth gear changing without any interruptions in tractive power and results in improved acceleration. The shift characteristics can be pre-set from fuel-saving to sporty via the "Economy", "Sport" and "Manual" transmission modes. When kick down is used in "Sport" mode the electronic controller skips individual gears instead of changing down through each individual gear. This enables faster sprints. In "Manual" mode, drivers with sporty inclinations can change gear manually using the steering wheel gearshift paddle.
An enhanced McPherson strut front axle and the all-new four-link rear axle ensure a harmonious combination of ride comfort and agility.
ESP® Dynamic Cornering Assist. This system is designed to provide enhanced road holding during fast cornering. If the standard-fit ESP® sensors register a tendency to understeer whilst the driver is accelerating in a bend, the stability program generates a selective brake actuation at the driven front wheel on the inside of the corner. This causes a slight rotational movement of the vehicle about the vertical axis, the effect being that not only does the vehicle corner more precisely and more controllably; through the reduced risk of understeering it also offers added active handling safety.