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Nissan recalls 640k crossovers for wiring issue, hood release

The National Highway Traffic Safety Administration has announced two separate recalls affecting hundreds of thousands of Nissan crossovers. The larger of the two involves the electrical system in 2008-2013 model year Rogue CUVs. In affected vehicles, a mixture of moisture and salt seeping in through the carpet on the driver's side could cause the harness connector to short, potentially causing a fire. The issue involves Nissan Rogues manufactured between March 7, 2007, and November 26, 2013, as well as examples of the 2014 Rogue Select manufactured between September 23, 2013, and July 2, 2014. All told, that comes to an estimated 468,815 units in the United States alone. The second recall affects the relatively smaller quantity of 170,665 vehicles, made up of 2013-14 Nissan Pathfinder, 2014 Pathfinder Hybrid, 2013 Infiniti JX35, 2014 QX60 and 2014 QX60 Hybrid models. (The JX35 was recently relabeled as the QX60 under Infiniti's new nomenclature.) The issue affecting some of those vehicles revolves around a hood release cable that may not properly latch. Nissan is notifying owners of the affected units to bring their vehicles in to have the wiring checked and to replace the harness connector and seal in the former case, and to have the hood release mechanism modified in the latter. All told, an estimated 639,480 vehicles are being recalled as part of the two campaigns. RECALL Subject : Electrical Short Due to Water Seepage Report Receipt Date: JAN 26, 2015 NHTSA Campaign Number: 15V032000 Component(s): ELECTRICAL SYSTEM Manufacturer: Nissan North America, Inc. SUMMARY: Nissan North America, Inc. (Nissan) is recalling certain model year 2008-2013 Nissan Rogue vehicles manufactured March 7, 2007, to November 26, 2013, and 2014 Nissan Rogue Select vehicles manufactured September 23, 2013, to July 2, 2014. The affected vehicles may experience an electrical short in the harness connector due to a mixture of snow/water and salt seeping through the carpet on the driver side floor near the harness connector. CONSEQUENCE: An electrical short can cause a vehicle fire. REMEDY: Nissan will notify owners, and dealers will inspect the kick panel wiring harness connector and will if necessary install a new harness connector and waterproof seal, free of charge. The manufacturer has not yet provided a notification schedule. Owners may contact Nissan customer service at 1-800-647-7261.

Infiniti's new VC-T changes the rules of small turbocharged engines

The upcoming Infiniti QX50 crossover does not get our pulse racing, no matter how shapely the QX Sport Inspiration concept that previews it may be. No midsize SUV does, to be fair. But it has something special under the hood – the world's first production variable-compression-ratio engine. That means the QX50's 2.0-liter turbo four, which makes 268 horsepower and 288 pound-feet of torque, will have up to 27 percent better fuel economy. Here's how it works. The trend of moving to smaller, turbocharged engines carries with it one big falsehood. Under low load when the turbo isn't needed, these engines are less efficient than an equivalent engine without a turbo because of the low compression ratio the turbo requires. That is, if you never need the extra power, you're wasting fuel. Turbocharged (and supercharged) engines use a lower compression ratio to prevent detonation. When you force extra air in a cylinder and mix it with fuel, it's more likely to prematurely go boom. Lowering the compression ratio prevents this problem, but it's less efficient. Infiniti's VC-T promises the best of both worlds, with a compression ratio that ranges from 8.0:1 for high-power turbo needs to a 14.0:1 ratio for fuel-sipping efficiency. At its heart the VC-T engine is a simple idea, but it's complicated to explain. Consider yourself warned. The photo below from Infiniti serves as a good visual overview. For the truly nerdy, this patent application covers the mechanical concept. Instead of having the pistons connected to the crankshaft, Infiniti's engine has a pivot arm with a connection on each end. One end connects to the piston, the other connects to a second lower shaft, which is controlled by an actuator arm. At any given time the engine's pistons move up and down according to the lobes on the crankshaft. But the actuator arm can change the angle of the pivot arm up and down. That is, the pistons still move in the same motion with the same stroke, but phase the entire stroke up or down. Move the pivot up and there's less room at the top, which means a higher compression ratio. Move the pivot down and the compression ratio goes down, too. As an added bonus, the lower shaft eliminates the need for counter-rotating balance shafts. Infiniti says this system works constantly and can vary the compression ratio to any number between 8:1 and 14:1. It also uses electronic variable valve timing on the intake valves to switch into Atkinson-cycle combustion for greater efficiency.

Chinese-designed Nissan Lannia Concept debuts in Beijing

Nissan showed off a stylish new concept car to the assembled crowds of media at the Beijing Motor Show. The Lannia Concept is... well, it's not that easy to describe. It's kind of a sedan, only it looks a bit like a fastback from the rear. But for a twist, it has an ever-so-small rear deck. Regardless of how we'd classify it, it's a seriously sharp piece of styling, thanks to its unique shape and flowing character lines.
If the Lannia's styling appears familiar, it's because we've sort of seen it before. There's more than a little bit of inspiration from the Friend-Me Concept. The Lannia's overall shape is similar to the Friend-Me, while both the front and rear clips look decidedly more production ready. Considering this evolution, we shouldn't rule out a production Lannia in the next few years. And if Nissan's product boss, Andy Palmer is any indication, the new model might not be limited to China.
"It was designed by Chinese, built by Chinese for the Chinese people, and ultimately, for the world," Palmer said in a statement. If Nissan can keep this sharp styling, this could prove a compelling buy in a number of markets.