Groupe Renault has studied and deployed a number of actions designed to reduce the nitrogen oxide (NOx) emissions of its Diesel EURO 6b vehicles in customer driving conditions.
These measures, which significantly reduce Nitrogen Oxide emissions in real life conditions without a noticeable impact on performance or fuel consumption will be applied in factory on Diesel EURO 6b vehicles from July 2016.
From October 2016, customers who have already taken delivery of a Diesel EURO 6b vehicle can arrange to have the modifications applied, free of charge, via simple visit to their Renault dealer.
To benefit its customers, Groupe Renault is implementing two changes to the anti-pollution systems in its vehicles:
1/ Extension of the operating range of the EGR systems – a key element in the reduction of nitrogen oxide
The studies and tests carried out since July 2015 permitting Groupe Renault to double the operating range at full efficiency of the EGR systems, without impacting the reliability and safety of engine and vehicle operation under customer driving conditions.
2/ Enhanced performance of the NOx trap which allows, in addition to the EGR, the storage and processing of nitrogen oxide at regular intervals.
The frequency and efficiency of the purges have been increased with a more robust system in order to better manage the wide range of different driving conditions.
The combination of these actions will on average, according to the conditions and driving style, reduce nitrogen oxide emissions in the extended EGR zone by half.
New EURO 6b Diesel models will include these features as a standard.
Existing EURO 6b Diesel models will progressively include these features in production, starting from July 2016.
From October 2016, customers having already taken delivery of a Diesel EURO 6b vehicle can request for these changes to be applied free of charge via a simple visit to their Renault dealer. Information will be sent to customers in the coming weeks and will also be available online at https://group.renault.com/en/company-vehicles/engines/general-information/
Groupe Renault reiterates that all its vehicles are homologated according to the standards in force. The actions described represent a first step towards the future EURO 6d standard which will set a maximum European level for the emission of pollutants in real life conditions, via the introduction of a new protocol ‘RDE’ (Real Driving Emissions)
In addition, Groupe Renault is developing new technologies to prepare for the arrival of EURO 6d which are planned to arrive in September 2017 for the new types.