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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.

Daily Driver: 2015 Volkswagen CC

Daily Driver videos are micro-reviews of vehicles in the Autoblog press fleet, reviewed by the staffers that drive them every day. Today's Daily Driver features the 2015 Volkswagen CC Executive, reviewed by Seyth Miersma. You can watch the video above or read a transcript below. And don't forget to watch more Autoblog videos at /videos. Show full video transcript text [00:00:00] Hi, guys. This is Seyth with Autoblog, and I'm driving the 2015 Volkswagen CC. The version of the car I'm in is the VR6 4motion car, so it's got a six-cylinder engine and all-wheel drive. This six-cylinder is actually a little bit of an odd duck at this point for the class. It's a 3.6 liter V6. It makes 280 horsepower, 265 pound-feet of torque. It's really living in a world that's been [00:00:30] overtaken by potent, two-liter turbos. I think something that's particularly difficult, especially in light of what I know about the Volkswagen family, the new engines getting great fuel economy. The 1.8T and obviously the TDI are real champs in that regard. Unfortunately, this VR6 is really sucking down the premium. These days, a 20 MPG combined rating is not particularly good. This definitely isn't a sports car. If you throw it hard into a corner, it leans a little bit, you can feel some roll [00:01:00] through the suspension. Handling is tidy, but it's not particularly precise. Of course, it's not really meant to be. This is a car that's meant to be great on the highway, great cruiser, look pretty stylish, and with a good powertrain, it can be exciting enough. Because you're not getting anything else that's very sports car-like about this car, other than the power delivery, and even there it's not quite on-pace with some of the sporty sedans that you can buy for right around the same money. It just makes for an interesting mix; something that's a little bit fast, [00:01:30] not very fuel-efficient, not a great handler, not a premium badge. Let's cut down right to it. This car is $44,400 and some change. Again, the VR6 4motion Executive Trim level, which means it pretty much gets everything you can get in a CC. We've got leather seats; they are heated. They have a massaging seat on the driver's side. I've got some 18-inch wheels that look pretty good. Big head unit with touch-screen and [00:02:00] navigation, satellite radio, better sound system. Just in general, the car feels very well-appointed. It feels like an entry-level luxury car.

Volkswagen adding R-Line trim to Touareg, Tiguan for 2014

Volkswagen introduced its aggressive R-Line appearance package on the CC and Beetle last year, but later this year, this treatment will also be applied to VW's crossovers, the Tiguan and Touareg. Both sporty-looking utility vehicles will be unveiled next week at the Detroit Auto Show.
The 2014 Tiguan R-Line comes standard with bi-xenon headlights and LED daytime running lights, and the package adds 19-inch wheels, grey fender extensions, body-color side skirts and a liftgate spoiler. Inside, the R-Line adds a flat-bottom sport steering wheel with paddle shifters, a black headliner and numerous metallic trim accents such as the stainless scuff plates, the aluminum pedals and metallic finish on the instrument and door panels. The Tiguan R-Line will be offered in front- and all-wheel drive configurations.
As for the 2014 Touareg R-Line (shown above), this model gets an ever more distinctive look with an aggressive front fascia, 20-inch wheels and dual oval-shaped exhaust outlets in addition to the painted side skirts and LED taillights. Similar metallic interior trim pieces found inside the Tiguan R-Line will also make their way into the Touareg as well as gloss black accents on the instrument panel and center stack.