2014 Volkswagen Jetta Sportwagen Tdi on 2040-cars

Auto blog

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 and Renault end talks to develop affordable EV, sources say

PARIS/BERLIN – Volkswagen has walked away from talks with Renault to jointly develop an affordable electric version of the Twingo subcompact car, three sources familiar with the situation said, in a setback for the EU carmakers' efforts to fend off Chinese rivals. The collapse of negotiations could mean the German carmaker may have to go it alone in developing its own affordable EV. Renault will continue designing its electric Twingo, scheduled to hit the market in 2026. Both had hoped that sharing the work would cut costs that represent a key hurdle for European carmakers in the face of cheaper cars from China. Volkswagen broke off discussions mainly because Renault had wanted to build the car in one of its plants at a time when VW is seeking to fully utilize its European production network, one of the sources said. Ampere, Renault's EV operation overseeing the Twingo program, declined to comment. A spokesperson for Volkswagen also declined to comment on the talks between the companies but said that the German carmaker was still studying its options on cheap EVs. The companies "did not succeed in finding an agreement" after several months of negotiations, one of the sources said. Another source said that an agreement had been very close, but that VW walked away from the talks and has decided to develop its own car. The sources declined to be named because the talks are confidential. VW sources said a decision on the EV plan is expected within weeks. Thomas Schaefer, CEO of the Volkswagen brand, has said he wants to launch a lower-priced EV by 2027. The second source said Renault would continue work on the Twingo without VW, but also remained open to other partners, for instance from the alliance with Nissan and Mitsubishi. It is also a blow for Renault CEO Luca de Meo's hopes for greater cooperation between European carmakers against their Chinese competitors, akin to Airbus which has stakeholders and operations across European countries. The VW-Renault tie-up for the Twingo could have formed the "basis" of an Airbus for autos, the second source said. China's automakers, the world's top EV producers, are making fast inroads in the European market, pressuring incumbents like Renault and VW to cut costs and speed up the time it takes to bring a new model to market. European automakers are aiming to produce smaller EVs that sell below 20,000 euros ($21,686) to help them compete with Chinese brands like BYD.

VW suspends sales in South Korea ahead of government meeting

Volkswagen and Audi have announced they will suspend sales of 79 different models in South Korea ahead of a meeting with the country's environmental ministry. VW will halt sales starting on July 25, the same day that its officials are to sit down with the South Korean environmental ministry, which will likely punish the German company. The Wall Street Journal reports that Korea's response to the situation will likely come in the form of an outright sales ban on Volkswagen products by revoking certifications on 79 different models based on 34 different vehicle types. Affected models include the VW Golf, Jetta, and Tiguan and the Audi A3 and A6, the WSJ reports. Essentially, it looks like VW is merely trying to get out ahead of the South Korean government. If the revocation goes through, it'd likely lead to fines and a relatively large recall of around 79,000 vehicles, the WSJ reports. Despite the dreary forecast, Volkswagen reaffirmed its commitment to the South Korean market. "This decision doesn't mean that Volkswagen is pulling out of Korea, which is a very important market to us," a Korean rep for the company said in a statement. "We'll reapply for certification of our cars if the government revokes it. The process may take several months." While Volkswagen's diesel emissions testing scandal is part of the problem, South Korea is taking a harder line than a lot of other countries. Authorities indicted a Volkswagen exec on charges of submitting falsified emissions documents and noise tests last week, while separately, Korea's trade watchdog is considering criminal charges against execs, according to the WSJ. Banning VW Group sales in South Korea isn't quite as dramatic as if the company stopped sales in China, the United States, or Germany, but it's still going to sting. VW Group products (including Bentley) represented around a third of European cars imported by South Korea last year. News Source: The Wall Street JournalImage Credit: Stefan Wermuth / Reuters Government/Legal Green Audi Volkswagen Emissions vw diesel scandal