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Mazda halts sales of CX-5 due to fire risk in crashes

The Basics: Mazda will recall 264,463 examples of the 2014-2016 Mazda CX-5 in the US. The Problem: The fuel filler pipe can rupture in a rear collision. This could cause a fuel leak, which is a fire risk. Injuries/Deaths: None reported. There are also no reports of fires. The Fix: Mazda has not yet specified the repair for the problem. If You Own One: Concerned owners can get a free loaner, demo, or rental vehicle until Mazda dealers repair the vehicle. More Information: Mazda also has a stop sale on new examples of the CX-5 until the company fixes the problem. Related Video: Mazda Implements Recall and Stop Sale of All 2014-2016 MY CX-5 Vehicles WASHINGTON, DC (February 1, 2016) – Today, Mazda Motor Corporation filed a safety defect report with the National Highway Traffic Safety Administration (NHTSA) to address a concern with 2014-2016 Model Year (MY) CX-5 vehicles. On all 2014-2016 MY CX-5 vehicles, the fuel filler pipe could rupture during a rear collision, and could potentially cause fuel leakage. Approximately 264,463 vehicles are affected in the U.S. There are no reports of accidents or injuries occurring in the subject vehicles as a result of this condition. If a customer has concerns about driving their vehicle before the repair is available, dealers will offer a free loaner, demo, or rental vehicle. Mazda North American Operations is headquartered in Irvine, Calif., and oversees the sales, marketing, parts and customer service support of Mazda vehicles in the United States and Mexico through more than 700 dealers. Operations in Mexico are managed by Mazda Motor de Mexico in Mexico City.

Mazda files patents for a sequential twin-turbo setup

Mazda has a history of interesting engine technologies, from yesterday's rotary engine to tomorrow's compression ignition engine, and new patents show it still may have some internal combustion tricks up its sleeve. The one on display in these patents isn't especially new in concept, though. A sequential twin-turbocharger setup is something Mazda itself used on the third-generation RX-7. But it's something we haven't seen much of lately. It looks like it could have some possible advantages over older sequential systems, and it has some potential advantages for enthusiasts. First a quick and dirty primer for what makes a sequential twin-turbo system distinct from other twin-turbo systems. In many twin-turbo engines, there are simply two turbos that work together as one bigger turbo. They're the same size, and they spool up at the same time. With a sequential setup, at low rpm, a smaller turbocharger is spooled up first at low-rpm for quicker throttle response, and as the rpm and exhaust pressure increases, a valve opens up that allows a larger turbocharger to also spool up and provide high-rpm boost. That's basically how the Mazda design shown above functions. A big flap blocks off the larger turbocharger exhaust inlet, channeling all the exhaust to the smaller turbo. When more exhaust is available at high rpm, it looks like that flap opens up to spool up the big turbo, too. What's interesting here is that the way the turbochargers are packaged takes up less space than past systems. It looks like both turbos are contained in one unit that shares the same exhaust outlet, meaning the exhaust manifold could be kept simple and compact. In fact, the piping for compressed intake air could also be shared, reducing the amount of piping, which would further decrease the amount of materials and possible failure points. There are a number advantages of making this system smaller. The potential applications of the system are much greater, since it could fit in smaller cars with smaller engine bays. Making the system smaller also means that there won't be as much weight, which is important from both fuel economy and performance standpoints. Finally, the smaller setup likely uses fewer materials, which could make the system cheaper and thus easier to offer on a wider range of vehicles, or at least more profitable for Mazda.

Mazda Kai concept hints at a more muscular, refined Mazda3

Mazda is packing some serious punch for the Tokyo Motor Show, unveiling a stylish hatchback it's calling the Kai Concept to go along with the earlier reveal of the show-stopping Vision Coupe. The compact five-door concept heralds a new generation of cars for the Japanese automaker, which is best known for making sporty, smallish and well-designed vehicles — such as the Mazda3, from which this concept derives its design direction. This version smooths over most of the Mazda3's sharp body creases in favor of smooth, undulating body panels that dramatically reflect light and reflect Mazda's KODO design language. It also gets more narrow, aggressive-looking headlights and a unique overhead profile, with two panes of glass that continue from the windshield and are intersected by a solid-color center, like a U-shaped moonroof. The Kai is powered by a next-generation Skyactiv-X combustion engine, which uses Mazda's proprietary compression ignition system to give the gas-powered engine the fuel efficiency, torque and initial acceleration response of a diesel powertrain. Which is encouraging, considering the Mazda3 already delivers impressive fuel economy. Inside, the concept hints at more refinement, with streamlined chrome accents popping from the black dash and interior panels. It all rests on Mazda's Skyactiv Vehicle Architecture that reflects human-centered design philosophy in everything from redesigned seats to maintain the spine's natural "S" curvature, to NVH tweaks to encourage a quieter, more comfortable ride. Mazda has said it plans to put this concept into production, but there's no word yet on when exactly that will be.Related Video: