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VW decides against active-cooling system for e-Golf lithium battery

When the 2015 VW e-Golf was introduced at the LA Auto Show last year, VW said it would come with a water-cooled battery. During the Detroit Auto Show, when the car was trotted out again, VW released a new press release that stripped out the "water-cooled" language, but this change went unnoticed. During a recent VW event in Germany, a friend from Green Car Reports realized that the battery on display did not seem to have any water-cooling mechanisms. That set us off on a bit of a sleuthing and we have now learned that VW is not going to include any active cooling in the upcoming e-Golf. In fact, the company is entirely confident that this car - because of what it's designed to do - doesn't need it. "The need for a cooling system wasn't there" - VW's Darryll Harrison VW has been working on an electrified Golf for ages now, and so changes to the plan are to be expected. But battery cooling is vitally important not just to keep the car operating properly but because when things get too hot, there can be serious public relations problems. Nissan began testing a new battery chemistry for the Leaf in 2013 after an uproar from warm-weather EV drivers in Arizona who were experiencing worse-than-expected battery performance. The Leaf has always used an air-cooled battery, which is another way to say that there is no active cooling system (more details here). Tesla CEO Elon Musk once said this approach is "primitive." So, why is VW following the same path? We asked Darryll Harrison, VW US's manager of brand public relations west, for more information, and he told AutoblogGreen that VW engineers discovered through a lot of testing of the Golf Mk6 EV prototypes, that battery performance was not impacted by temperatures when using the right battery chemistry. That chemistry, it turns out, is lithium nickel manganese cobalt oxide (NMC) in cells from Panasonic. These cells had "the lowest self-warming tendency and the lowest memory effect of all cells tested," Harrison said. He added that VW engineers tested the NMC cells in places like Death Valley and Arizona and found they didn't warm very quickly either through operation, charging (including during fast charging) or through high ambient temps. "The need for a cooling system wasn't there," Harrison said.

VW recalls 220,000 Atlases, Atlas Cross Sports for airbag defect [Updated]

[Update: Audi of America has confirmed that no U.S. models are among the recall population for plug-in hybrid fire issue.] Volkswagen has issued yet another recall for its Atlas SUV, this time for side airbags that may not deploy correctly in an accident due to a problematic connection in one of the vehicle's wiring harnesses. The campaign covers 222,892 Atlas and Atlas Cross Sport models built for the 2019-2023 model years.  The issue stems from a connection with the wiring harness that runs from the A-pillar into the door. VW says that harnesses produced by one of its suppliers were not built with additional measures to prevent movement at the connection point. Small movements can cause abrasion of the metal contacts which could lead to a whole host of electronic misadventures, including the potential for airbag deployment to be delayed in a crash.  "Micro-movement of the wire harness (terminal A-Pillar to front door) can result in damage to the wire terminal surface. Damage to the surface can [result] in fretting corrosion which may cause sporadic interruption in the electrical connection to the components of the front door," VW said in its defect notice. "The airbag warning light may illuminate if a malfunction is detected. Other symptoms of a sporadic interruption of the affected electrical connection can be: inadvertent rolling down windows, inadvertent park brake engagement at low speeds (below approx. 3km/h or 1.8mph), warning regarding faulty door sensor," VW said.  Not every model built within the range defined above is subject to the recall; terminals from other suppliers were manufactured with the necessary safeguards in place. If you own a 2019-2023 Atlas or Atlas Cross Sport, keep your eyes peeled for a notification from VW regarding the campaign, likely some time in early-mid May.  PHEV problems Across the Atlantic, the VW Group mothership confirmed that it will recall more than 100,000 plug-in hybrid models worldwide to address a fire risk. The recall was launched in response to 16 reported incidents of fires stemming from insufficient insulation of the PHEV battery pack that allows the engine cover to make contact if it is not completely secure. If that happens, the heat from the battery can ignite the engine cover. The recall will cover PHEVs build by VW, Audi, Seat and Skoda, Reuters reports, including the VW Passat, Golf, Tiguan and Arteon — plug-in variants of which are not sold in the United States.

VW Group recalls 27k Touaregs, Audis and Porsches for fuel leak

The Volkswagen Group is one of the most expansive in the entire industry, and shares parts across more product lines than we could wrap our heads around. So when the German megalith finds a fault in one of its components, it has the capacity to spread like wildfire. The latest set of recall notices from the National Highway Traffic Safety Administration covers vehicles from the Volkswagen, Audi and Porsche divisions. The problem revolves around the fuel injection system, which could potentially leak and cause a fire. The recall affects – deep breath now – the 2012 VW Touareg Hybrid, the 2011-12 Porsche Cayenne S Hybrid and Panamera S Hybrid, 2011-12 Audi S4, S5 and Q7 and the 2012-13 Audi A7. All told, that amounts to 27,376 units, the owners of which can expect to hear from the manufacturer to have the fuel rails replaced, along with their corresponding seals (having nothing to do with marine mammals writing letters). RECALL Subject : Fuel Injection System Fuel Leak Report Receipt Date: JAN 20, 2015 NHTSA Campaign Number: 15V019000 Component(s): FUEL SYSTEM, GASOLINE Potential Number of Units Affected: 26,008 Manufacturer: Volkswagen Group of America, Inc. SUMMARY: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2011-2012 Audi S4, S5, Q7, 2012 Audi A6, Volkswagen Touareg Hybrid, and 2012-2013 Audi A7 vehicles. In the affected vehicles the fuel injection system may experience a fuel leak. CONSEQUENCE: A fuel leak in the injection system in the presence of an ignition source, increases the risk of a fire. REMEDY: Volkswagen will notify owners, and dealers will replace the fuel rails and corresponding seals, free of charge. The recall is expected to begin March 10, 2015. Owners may contact Audi customer service at 1-800-822-2834 or Volkswagen customer service at 1-800-893-5298. Volkswagen's numbers for this recall are 24AP for Audi customers and 24BK for Volkswagen customers. NOTES: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov. ### RECALL Subject : Fuel Injection System may Leak Report Receipt Date: JAN 20, 2015 NHTSA Campaign Number: 15V016000 Component(s): ENGINE AND ENGINE COOLING Potential Number of Units Affected: 1,368 Manufacturer: Porsche Cars North America, Inc. SUMMARY: Porsche Cars North America, Inc.