2014 Volkswagen Passat Tdi Sel Premium 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.

Autoblog Podcast #370

Episode #370 of the Autoblog podcast is here, and this week, Dan Roth, Michael Harley and Craig Fitzgerald of BangShift and Boldride talk about the 2015 Jeep Renegade, the Consumer Reports list of Cars to Avoid, and the Geneva Motor Show, which opened today. We start with what's in the garage and finish up with some of your questions, and for those of you who hung with us live on our UStream channel, thanks for taking the time. Check out the new rundown below with times for topics, and you can follow along after the jump with our Q&A. Thanks for listening! Autoblog Podcast #370: Topics: 2015 Jeep Renegade Worst Cars of 2014 Geneva Motor Show preview In the Autoblog Garage: 2014 Volkswagen Jetta SE 2014 SRT Viper 2015 Subaru WRX Hosts: Dan Roth, Michael Harley Guests: Craig Fitzgerald Runtime: 01:28:37 Rundown: Intro and Garage - 00:00 Jeep Renegade - 27:28 Cars to Avoid - 41:46 Geneva Motor Show - 59:54 Q&A - 01:11:04 Get the podcast: [UStream] Listen live on Mondays at 10 PM Eastern at UStream [iTunes] Subscribe to the Autoblog Podcast in iTunes [RSS] Add the Autoblog Podcast feed to your RSS aggregator [MP3] Download the MP3 directly Feedback: Email: Podcast at Autoblog dot com Review the show in iTunes Podcasts Geneva Motor Show Jeep Subaru Volkswagen Concept Cars worst cars

Pontiac Aztek enjoys rebirth thanks to Millennials

Apparently, Millennials – those between 18 and 34 – aren't afraid to look different on the road, and they like performance, too. A new study by Edmunds is discovering some surprising vehicle choices by this group. Among them, the long-derided Pontiac Aztek is getting a new day in the sun with 25.5 percent its buyers coming from this generation in the first half of 2015. For comparison, Millennials represent an average of 16.8 percent of used car purchases. The Aztek is slowly shaking its reputation as a styling abomination, which seems tied to its appearance on Breaking Bad. The show premiered in 2008, and the Pontiac has been on this list for four of the past five years, according to Edmunds. It even led the pack in 2010. A recent Retro Review from MotorWeek also showed that the crossover wasn't always so hated. While it's still a shock to see the Aztek on any popularity list, the awkward-looking crossover only ranks sixth among Millennials. The vehicle with the biggest portion of buyers from the generation is the Dodge Magnum with 27.6 percent. According to Edmunds, the bluntly styled wagon is especially popular in Detroit and Chicago. The Chrysler Pacifica comes in a close second at 27.3 percent. When it comes to used cars, value and utility appear to trump just about anything else for many Millennial buyers," Edmunds analyst Jeremy Acevedo said in the report. Young buyers aren't afraid of sporty rides, either. The Subaru WRX has 26.4 percent Millennial buyers to rank third place on the list, and the Volkswagen R32 takes fifth at 25.7 percent. Just a few points lower in seventh place is the Nissan GT-R at 25.4 percent, and the final performance machine in 10th place is the Lexus IS-F with 24.7 percent. Related Video: