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Japan plans real-world diesel emissions test after companies fail

Japan's transport ministry plans to start real-world diesel emissions tests after an experiment found four models from Toyota, Nissan, and Mitsubishi that produced more nitrogen oxide (NOx) emissions than the nation's rules allow, according to The Japan Times. Regulators there usually only perform emissions checks in the lab. The VW diesel scandal has everyone double-checking their figures. Diesel versions of the Toyota Hiace van, Land Cruiser Prado, and Nissan X-Trail produced up to 10 times more NOx than allowed. The Mitsubishi Delica D:5 was up to five times over the limit, The Wall Street Journal reports. There was no evidence of defeat devices in the vehicles. Mazda performed well in the experiment, though. The CX-5 passed with nearly the same results on the road and in the lab. The Demio, better known as the Mazda2, did nearly as well with only slighter higher figures in the real world than in the controlled setting. The experimenters theorized the reason for the excessive emissions was that cold weather caused the engines' software to shut off the exhaust gas recirculation to prevent damage, according to the WSJ. However, this behavior also increased NOx production. Toyota, Nissan, and Mitsubishi don't have to worry about punishment from the transport ministry because this check was just an experiment. Their models already passed the mandated lab tests, which was the only requirement, according to The Japan Times. As governments begin greater real-world emissions tests, the results suggests diesels aren't very clean. A recent check in France found models from Ford, Renault, and Mercedes-Benz that didn't perform up to the standards. Regulators in India conducted similar evaluations and ordered VW to recall over 300,000 vehicles. Related Video:

Mazda considers expanding Takata recall nationwide

Vehicle recalls have come in force recently. Honda expanded its front driver's side Takata airbag inflator recall nationwide to cover an estimated 5.4-million vehicles, and the National Highway Traffic Safety Administration added 19 notices to its database covering safety campaigns dating back to October. It looks like there could be one more to add to the list soon because Mazda is considering a possible nationwide expansion of its own inflator repairs. A company spokesperson tells Reuters that there is no decision yet when to actually make this nationwide expansion of the driver's side inflator recall official, and the company isn't sure how many vehicles may be affected. Mazda just expanded the scope of its Takata inflator recalls to additional regions earlier in December. The move took its total number of units in need of repair from around 65,000 under the earlier NHTSA estimate to 86,773, according to the company. So far, the automaker's US campaign has included the 2003-2007 Mazda6, 2006-2007 MazdaSpeed6, 2004-2008 Mazda RX-8, 2004-2005 MPV and 2004 B-Series pickup.

Mazda teases CX-4 for the Beijing Motor Show

Mazda will unveil the CX-4 crossover at the Beijing Motor Show in late April, and the company's single teaser image (above) suggests the CUV might borrow styling cues from the larger Koeru concept. Mazda kept details about the CX-4 light for now but says in the announcement, "this is a new type of crossover SUV designed to help customers live more creative lives." The teaser photo offers some hints about the design. For example, the rear pillar comes to a point and features chrome accents, which are elements from the Koeru and production CX-9. The arching roof rail suggests a coupe-like shape because it arcs downward to the hatchback. The name also hints that this model slots between the CX-3 and CX-5 in the lineup, but the CX-4 appears to prioritize style over utility. We can't wait to get a better look because this picture doesn't offer much detail. The company will also show versions of the Mazda3 and Mazda6 for the China Touring Car Championship at the Beijing show. Related Video: Mazda to Debut New CX-4 Crossover SUV at Beijing Motor Show - Twelve models on display including new-generation Mazda3, CX-5 and Mazda6 - HIROSHIMA, Japan—Mazda Motor Corporation will debut the all-new Mazda CX-4 crossover SUV at the Beijing Motor Show.*1 The automaker's stand at the show will feature twelve vehicles, including new-generation models such as the Mazda3, Mazda CX-5, Mazda6, and race cars prepared for the Mazda-sponsored MZ Ruisi Racing Team competing in the China Touring Car Championship (CTCC). The CX-4 is the latest addition to Mazda's new-generation lineup of models featuring the full range of SKYACTIV Technology and KODO-Soul of Motion design. With a striking presence that sets it apart from other SUVs, the functionality modern users expect and Jinba-ittai driving thanks to Sustainable Zoom-Zoom, this is new type of crossover SUV designed to help customers live more creative lives. In addition to the CX-4, Mazda will display other vehicles and technologies that represent the brand. Mazda aims to enrich people's lives through a variety of touch points and become a brand that maintains a special connection with customers. *1 Also known as 2016 Beijing International Automotive Exhibition. Press days are April 25-26. Special invitation days are April 27-28. Open to the public from April 29 through May 4.