Mitsubishi Motors has just admitted it might be liable of “improper conduct in fuel consumption testing” on around 625,000 cars sold in Japan.
In an official statement, Mitsubishi said it did not quite make the initial fuel consumption testing by the book and it submitted some unrealistic figures to the Japanese regulators. “We found that with respect to the fuel consumption testing data submitted to the Ministry of Land, Infrastructure, Transport and Tourism, MMC conducted testing improperly to present better fuel consumption rates than the actual rates; and that the testing method was also different from the one required by Japanese law,” the automaker said. The cars affected by this “imprudence” are the eK Wagon and eK Space models and the Nissan Dayz and Dayz Roox, which have been built by Mitsubishi and supplied to Nissan Motors Corporation since June 2013. Up until the end of March 2016, the company revealed it has sold 157,000 units of the eK Wagon and eK Space and supplied 468,000 units of the Dayz and Dayz Roox to Nissan.
In the development process for the next generation models, Nissan examined the fuel consumption figures of the cars for its own reference to find out those deviations in the figures. Therefore, Nissan asked Mitsubishi to review the running resistance value, thus triggering an internal investigation, following which “it learned of the improper conduct that MMC used the running resistance value for testing which provided more advantageous fuel consumption rates than the actual rates.”
Both automakers have decided to stop production and sales of the affected cars and to discuss compensation regarding this issue. Furthermore, Mitsubishi has also admitted that there are more cars with higher fuel consumption figures, without providing additional info about them.
“During our internal investigation, we have found that the testing method which was different from the one required by Japanese law has been applied to other models manufactured by MMC for the Japanese domestic market. Taking into account the seriousness of these issues, we will also conduct an investigation into products manufactured for overseas markets.”