BMW EfficientDynamics Consumption and emissions


BMW EfficientDynamics: Details of the measuring procedure for fuel consumption and CO2 emissions as well as information on diesel technology.

The fuel consumption and CO2 emissions of new vehicles are determined by means of a standardised procedure. In September 2018, the previously applicable New European Driving Cycle (NEDC) was superseded by a more realistic driving cycle called WLTP (Worldwide Harmonized Light Vehicles Test Procedure). Augmenting this is the RDE test (Real Driving Emissions), which measures the pollutants emitted directly on the road. With the new test procedures, consumers will be able to better assess their vehicle’s fuel consumption and emissions in future. On this page, you can also obtain useful information on the efficiency of diesel engines.

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CONSUMPTION & EMISSIONS. BMW EfficientDynamics: Details of the measuring procedure for fuel consumption and CO2 emissions as well as information on diesel technology.


  • 01 The new statutory WLTP consumption measurement has a more practical basis.
  • 02 The tests take place over a longer period of time, at higher speeds and with a more dynamic progression.
  • 03 The standard values of the new measuring procedure are closer to real-world figures for consumption.
  • 04 The details offer a greater degree of transparency in terms of the anticipated fuel costs.
  • 05 The WLTP measuring technique has been undergoing gradual implementation since 1 September 2017.


Precise test procedure for obtaining the most realistic values possible for fuel consumption and CO2 emissions.

The WLTP measuring technique is based on globally compiled, real driving data, which will result in the values determined also being more realistic. Among the changes this involves are redefined, significantly more stringent test conditions and higher speeds, together with a substantially longer test duration (30 instead of 20 minutes).
To determine the CO2 emissions more precisely, both standard equipment options and special equipment options for a vehicle are included in the test procedure. This will produce two values for each type of vehicle: the lowest and highest possible standard consumption value according to the aerodynamics, weight and rolling resistance. Thanks to WLTP, you will be able to better assess a vehicle’s consumption and CO2 emissions. In the case of a specific vehicle configuration, the individual standard value will be indicated directly. In the case of a specific vehicle configuration, the individual standard value will be indicated directly. Even with this test procedure, deviations will still be possible in real-world operation. Regardless of this, everyday consumption and CO2 emissions continue to be subject to the different conditions of topography, climate and personal driving technique. Also exerting an influence are the traffic situation, the current load carried and the use of devices such as the air conditioning system. One thing is certain: the test conditions are more realistic than before, which means that higher fuel consumption and CO2 values as well as lower ranges for electric vehicles can be expected on paper. However, this does not have any adverse effect on the real fuel consumption or range. In addition, the BMW Group is always working on new technologies in order to improve consumption and range.
All vehicles of the BMW Group that can be ordered in the EU28+ countries are approved in accordance with the WLTP method.
In Germany, however, the legislator specifies that the values measured with WLTP will initially be communicated with a calculation referring them back to NEDC values. The EU Commission has developed a correlation technique for this purpose, which will be binding to an equal extent on all vehicle manufacturers.
This phase is intended to simplify the changeover. Its duration will depend on the respective national legislation and will thus vary from country to country.
From September 2018, all car manufacturers have been legally obliged to test in accordance with WLTP for all vehicles sold in the EU as well as in Switzerland, Turkey, Norway, Liechtenstein and Israel (EU28+).
As from January 2021, all countries which adopt the EU legislation for vehicle registration will have to issue and communicate WLTP values for all vehicles.

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Learn more about the differences between the old and the new test procedure.

Test procedure


Realistic measurement of pollutant emissions by a vehicle driven on the road.

Since mid May 2016, Real Driving Emissions (RDE) measurements have been compulsory for all vehicle manufacturers in the EU as well as in Switzerland, Turkey, Norway, Liechtenstein and Israel. In these RDE tests, the pollutant emissions, such as particulate matter and nitrogen oxides (NOx), are measured directly on the road. This method determines average emission values that can be expected during everyday driving.
In order to further reduce pollutant values in everyday use, the BMW Group is applying various technologies in its models for reducing exhaust emissions.
The BMW BluePerformance measures, for example, reduce the emission of nitrogen oxides in diesel engines. With the introduction of the new 6-cylinder engine generation for the diesel as from 2020, the storage catalytic converter located close to the engine is replaced by an even more efficient SCR system, also close to the engine. As a result, NOx conversion is further improved, especially during urban driving. A second SCR catalytic converter, located as before in the underbody, provides additional support, and, depending on the vehicle, has its own AdBlue dosing system.
The BMW Group was the first vehicle manufacturer to introduce the combination of NOx storage catalytic converter and SCR system into series production. By establishing double AdBlue dosing, BMW is again setting new standards in the purification of exhaust gases and pollutant reduction.
Furthermore, since 2006 diesel vehicles have been equipped with particle filters as standard in order to reduce particulate matter. In the petrol-engine models, too, special particle filters re now in operation across the range.
BMW is producing EU6d vehicles from 01.10.2020 - already three months before the legally binding date of 01.01.2021. In contrast to EU6c, the EU6d exhaust emissions standard now also defines threshold limit values for the number of particles and nitrogen oxides in RDE test runs.
EU6d approval guarantees that your vehicle complies with the currently strictest EU emission limit values.

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Powerful and efficient: the BMW petrol and diesel engines.

Innovative petrol and diesel engines with BMW TwinPower Turbo technology form the centrepiece of every BMW. They combine the latest injection systems, fully variable performance control and innovative turbocharger technology.

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BMW EfficientDynamics BMW TwinPower Turbo petrol engines

BMW TwinPower Turbo petrol engines.

The innovative three-cylinder petrol engine with its exceptional smoothness, the four-cylinder petrol engine and the BMW TwinPower Turbo straight six-cylinder petrol engine, multiple winner of the “Engine of the Year Award”, set standards. In its latest generation the BMW EfficientDynamics engine family proves to be more economical, lower on emissions and more powerful than its predecessors.

In order to increase efficiency and dynamics, this innovative package – a milestone in the BMW EfficientDynamics strategy – combines the latest injection technology and the Valvetronic fully variable valve control including double-VANOS with innovative turbocharger technology. The result is an especially efficient drive system that impressively illustrates the recognised engine expertise of BMW.

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BMW EfficientDynamics BMW TwinPower Turbo diesel engines

BMW TwinPower Turbo diesel engines.

Reflected in the BMW Twin Power Turbo diesel engines is the systematic implementation of the BMW EfficientDynamics principle: combining top values in economy, power yield and running characteristics with low fuel consumption. There is no doubt about their efficiency and dynamics. Yet at the same time, the BMW TwinPower Turbo three-cylinder diesel engines serving as ideal entry-level engines, the innovative BMW TwinPower Turbo four-cylinder diesel engines and the especially powerful BMW TwinPower Turbo straight six-cylinder diesel engines perform their work with remarkably few emissions and little friction. Maximum driving fun is therefore guaranteed. The diesel power units with the aluminium lightweight construction of the BMW EfficientDynamics engine family have turbocharging with variable turbine geometry. Fuel injection is the responsibility of the latest generation of common rail direct injection.

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BMW EfficientDynamics BMW diesel engine close-up


The diesel is not only an important economic motor, it is also a highly efficient drive. Thanks to the innovative AdBlue injection technology, the nitrogen emissions of modern BMW diesel vehicles are tending towards zero. Additional exhaust gas purification procedures are additionally in use to further reduce pollutant emissions. Consequently, the diesel engine is both an efficient and sustainable drive system, particularly for drivers who regularly cover long distances. Within the BMW Group, all types of drive undergo further development and improvement in parallel.


Be it cost-effectiveness or efficiency, there are many good reasons that support modern diesel engines. Yet there is often a lack of facts and background information. Form your own picture with the informative overview on the topic of the diesel drive and pollutant emissions featured here.

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  • The diesel and the environment
  • Particulate matter and particle filters
  • What exactly is CO2?
  • What does NOx mean?
  • EU exhaust emissions standard
  • Environmental zones
  • Emissions sticker
BMW EfficientDynamics Efficient driving


BMW EfficientDynamics Innovative technologies from BMW EfficientDynamics



Your questions. Our answers.

  • What is WLTP?
  • What is the WLTP driving cycle?
  • What does WLTP mean for me?
  • What is RDE?
  • What is EU6?
  • What does selective catalytic reduction (SCR) mean?
  • What is BluePerformance?
  • What is a particle filter?
  • What does WLTP mean for electric and hybrid vehicles?