Studies have shown that in urban traffic a car comes to a stop every 1.3 km on average – at traffic lights or in a traffic jam. In such situations fuel can be saved and emissions reduced.
smart mhd technology intelligently implements an idea that is both simple and brilliant – the automatic start/stop principle: When the vehicle approaches red traffic lights, for example, the micro hybrid drive shuts down the engine as soon as the car falls below a speed of 8 km/h and you press the brake pedal. The engine starts again in the fraction of a second as soon as you release the brake, and the journey can continue without interruption. Fuel savings are maximised by predictive engine shut-down as the car rolls to a stop at a speed of less than 8 km/h.
A brilliantly simple fuel-saving idea.
The system has been perfected for the smart fortwo's automated manual transmission and is fully automatic, i.e. no gear shifting or clutchwork are necessary and you do not have to do anything out of the ordinary – a special control unit does all the work for you.It takes next to no time to get used to the system. And if, for some reason, you don't want to use the mhd function, simply switch it off with a button.Depending on the traffic situation, fuel consumption in urban traffic is reduced by approximately 20%[1]. Low consumption also means low CO² emissions. For example, the (combined) CO2 emissions[2] of the smart fortwo coupé 52 KW mhd stand at just 103 g/km [3] – that's good for you and good for the environment!Combined fuel consumption smart fortwo micro hybrid drive coupé with a 52 kW (71 bhp) petrol engine in l/100 km[2] 4.4, combined CO2 emissions in g/km[2] 103[3].
[1]
Calculation basis: The official fuel consumption figures in the NEDC (New European Driving Cycle) were compared for the smart fortwo 52 kW version without mhd (available as a new vehicle until 29 June 2008), and the version with mhd (available as a new vehicle since 01 October 2007). The consumption figures may vary depending on the actual traffic situation and individual driving style. Combined fuel consumption of the smart fortwo micro hybrid drive coupé with a 52 kW (71 bhp) petrol engine in l/100 km[2] 4.3, combined CO2 emissions in g/km[2] 103[3]. Combined fuel consumption of the smart fortwo micro hybrid drive cabrio with a 52 kW (71 bhp) petrol engine in l/100 km[2] 4.4, combined CO2 emissions in g/km[2] 105[3].
[2] The data do not relate to an individual vehicle and do not form part of an offer, but are intended solely for the purpose of comparison between different types of vehicle. The figures stated depend on the tyre dimensions. For further information on the official fuel consumption and official specific CO2 emissions of new cars, please refer to the "Guide to the fuel consumption and CO2 emissions of new cars", which is available free of charge at all points of sale and from Deutsche Automobil Treuhand GmbH.
[2] The data do not relate to an individual vehicle and do not form part of an offer, but are intended solely for the purpose of comparison between different types of vehicle. The figures stated depend on the tyre dimensions. For further information on the official fuel consumption and official specific CO2 emissions of new cars, please refer to the "Guide to the fuel consumption and CO2 emissions of new cars", which is available free of charge at all points of sale and from Deutsche Automobil Treuhand GmbH.
