our promise
At Renault, we strive to make your life better and easier. For decades now, we have been working to offer vehicles that provide greater efficiency and cause less pollution.
We are committed to reducing the impact of our vehicles on the environment. Thanks to our Zero Emissions (Z.E.) technology, we are pioneers in the field of sustainable mobility for all.
Regulations are changing and we play a role in these changes. It begins with taking into account the new Worldwide Harmonised Light Vehicle Test Procedure (WLTP) for personal cars and light commercial vehicles. This new protocol enables consumers to access fuel consumption and pollutant emission data that reflects the everyday use of their vehicle with much more accuracy.
understanding the changes in regulations
- WLTP and RDE
- Certification protocol
- From NEDC to WLTP
- Comparing NEDC and WLTP
- RDE
- Schedule
- Meaning
understanding the changes in regulations: WLTP and RDE
Since 1 September 2017, WLTP has come into effect, gradually replacing the NEDC (New European Driving Cycle) protocol. In addition to this new protocol, there is a second one: RDE (Real Driving Emissions). They provide access to consumption and emission results that reflect your actual everyday use. Discover them.
**NEDC, New European Driving Cycle
***RDE, Real Driving Emissions
what is a certification protocol?
It is a series of mandatory tests that certify the regulatory compliance of all new-to-market vehicles. The goal is to check that all vehicles respect pollutant emission regulations, commonly referred to as emission standards. Euro 6 is the standard currently in effect.
The tests are performed in a laboratory by independent bodies (UTAC in France, for example). They are based on standardised driving cycles (length, speed, equipment, temperature, etc.) and measure pollutants, CO2 emissions and fuel consumption for combustion engine vehicles. As such, these measurements let you compare the performance of models from different manufacturers. Today, this data is published in brochures and on manufacturers’ websites.
from NEDC to WLTP
Before September 2017, the NEDC laboratory test – a benchmark since the 1990s – was the certification protocol in effect. This protocol became obsolete as it did not keep up with automotive developments. WLTP gradually replaced NEDC.
What is the difference between the two protocols? To begin with, the WLTP driving cycle is longer and more accurate than the NEDC. The test speeds are higher, the temperature range is wider, and all vehicle equipment is taken into account (see below). In short, these improvements produce results that are much closer to what you experience during your everyday journeys.
View the differences between the NEDC and WLTP tests below.
As the testing conditions are closer to real-use conditions, they may show higher fuel consumption and emissions compared with brochure information. However, actual daily consumption is not affected. It is simply a more accurate reflection of fuel consumption and emissions which, under WLTP, takes into account the type of vehicle specifically, in addition to the chosen equipment and options. Furthermore, this measurement will be assessed based on a range of results recorded during the test (as opposed to a single result per model for the NEDC protocol).
Real Driving Emissions (RDE)
Even though the conditions of the WLTP test cycles are stricter than those of the NEDC protocol, they still do not take into account all the parameters of a vehicle's real use, which is where the Real Driving Emissions (RDE) test comes in.
Performed on roads under true driving conditions, this test complements the WLTP certification by verifying a vehicle’s actual pollution emission levels.
Groupe Renault has already begun to provide its customers with the results of RDE pollutant emission tests on new vehicles registered after May 2016.
timing
- From September 2017 to September 2018, all new-to-market vehicles (new model/engine) must be certified under the WLTP test.
- From September 2018, all new vehicles sold in dealerships must be certified using WLTP.
- Until the end of 2018, to simplify the process, regulatory authorities have asked all manufacturers to continue to communicate only the NEDC results. Accordingly, the results of all WLTP-certified vehicles must be converted to their NEDC equivalent until early 2019. These data will be used to calculate the relevant tax status in the different countries affected.
- As from January 2019, all published data will be only WLTP values.
- In parallel to the implementation of the WLTP certification protocol, the emission standard that vehicles have to respect is evolving step by step to reduce the environmental impact of vehicles. This will ultimately lead to the roll-out of the Euro 6D standard in January 2020.
what this means for you
It’s important to note that neither vehicle performance nor actual fuel consumption is affected, regardless of the certification protocol followed.
However, the CO2 levels and fuel consumption data published by manufacturers will naturally increase, since the new WLTP protocol better reflects the vehicle's everyday use.
Simply stated, WLTP is more accurate than NEDC, but it doesn’t change the actual performance or consumption of your vehicle.
our solutions
facilitating reduced fuel consumption
Renault will bring the first vehicles certified using the new procedure to market from January 2018. And from September 2018 onwards, all new Renault vehicles sold in the networks will have WLTP certification.
Since our goal is also to help you participate actively in reducing the impact on the environment, we offer a range of intelligent and responsible solutions through our Driving ECO2 program.
driving ECO2 programme
- On-board features include a gear change indicator, an eco-driving mode button, the option of receiving a journey review with an eco-score and, thanks to eco-coaching, tips for eco-driving in real time to optimise fuel consumption.
- Off-board features include business-to-business eco score and eco driving training for example.
exceeding market expectations and changes in regulations
- In response to the demand for diesel engines on the market, we will adapt our diesel engines to selective catalytic reduction technology to reduce pollutant emissions in real-life situations.
- All new petrol engines will be equipped with particulate filters, offering both better performance and reduced emissions and fuel consumption.
- By 2022, we will offer 8 new fully electric Z.E. models and 12 new electrified models (HEV, P-HEV).
