2006 Volkswagen Passat 3.6 Sedan 4-door 3.6l on 2040-cars

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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.

Ferdinand Piech (1937-2019): The man who made VW global

Towering among his peers, a giant of the auto industry died Sunday night in Rosenheim/Upper Bavaria, Germany. Ferdinand Piech, a grandson of Ferdinand Porsche, who conceived the original Volkswagen in the 1930s, was the most polarizing automotive executive of our times. And one who brought automotive technology further than anyone else. Ferdinand Porsche had a son, Ferdinand (called "Ferry"), and a daughter, Louise, who married the Viennese lawyer Anton Piech. They gave birth to Ferdinand Piech, and his proximity to two Alfa Romeo sports cars — Porsche had done some work for the Italians — and the "Berlin-Rome-Berlin" race car, developed by Porsche himself, gave birth to Piech's interest in cars. After his teachers in Salzburg told his mother he was "too stupid" to attend school there, Piech, who was open about his dyslexia, was sent to a boarding school in Switzerland. He subsequently moved on to Porsche, where he fixed issues with the 904 race car and did major work on the 911. But his greatest project was the Le Mans-winning 917 race car, developed at breathtaking financial cost. It annihilated the competition, but the family had had enough: Amid growing tension among the four cousins working at Porsche and Piech's uncle Ferry, the family decided to pull every family member, except for Ferry, out of their management positions. Piech started his own consultancy business, where he designed the famous five-cylinder diesel for Mercedes-Benz, but quickly moved on to Audi, first as an engineer and then as CEO, where he set out to transform the dull brand into a technology leader. Piech killed the Wankel engine and hammered out a number of ambitious and sophisticated technologies. Among them: The five-cylinder gasoline engine; Quattro all-wheel drive and Audi's fantastic rally successes; and turbocharging, developed with Fritz Indra, whom Piech recruited from Alpina. The Audi 100/200/5000 became the world's fastest production sedan, thanks to their superior aerodynamics. Piech also launched zinc-coated bodies for longevity — and gave diesel technology a decisive boost with the advent of the fast and ultra-efficient TDI engines. Less known: Piech also decided to put larger gas tanks into cars. Customers loved it. Piech's first-generation Audi V8 was met with derision by competitors; it was too obviously based on the 200/5000.

Lexus tops JD Power Vehicle Dependability Study again, Buick bests Toyota

It shouldn't surprise anyone, but Lexus has once again taken the top spot in JD Power's Vehicle Dependability Study. That'd be the Japanese luxury brand's fourth straight year at the top of table. The big news, though, is the rise of Buick. General Motor's near-premium brand beat out Toyota to take second place, with 110 problems per 100 vehicles compared to Toyota's 111 problems. Lexus owners only reported 89 problems per 100 vehicles. Besides Buick's three-position jump, Scion enjoyed a major improvement, jumping 13 positions from 2014. Ram and Mitsubishi made big gains, as well, moving up 11 and 10 positions, respectively. In terms of individual segments, GM and Toyota both excelled, taking home seven segment awards each. The study wasn't good news for all involved, though. A number of popular automakers finished below the industry average of 147 problems per 100 vehicles, including Subaru, (157PP100), Volkswagen (165PP100), Ford/Hyundai (188PP100 each) and Mini (193PP100). The biggest losers (by a tremendous margin, we might add) were Land Rover and Fiat, recording 258 and 273 problems per 100 vehicles. The next closest brand was Jeep, with 197PP100. While the Vehicle Dependability Study uses the same measurement system as the Initial Quality Survey, the two metrics analyze very different things. The VDS looks at problems experienced by original owners of model year 2012 vehicles over the past 12 months, while the oft-quoted IQS focuses on problems in the first 90 days of new-vehicle ownership. Like the IQS, though, the VDS has a rather broad definition of what a problem is. Because of that, a low score from JD Power is no guarantee of extreme unreliability, so much as just poor design. In this most recent study, the two most reported problems focused on Bluetooth connectivity and the voice-command systems. The former leaves plenty of room for user error due to poor design (particularly true of the Bluetooth systems on the low-scoring Fords, Volkswagens and Subarus), while the second is something JD Power has already confirmed as being universally terrible. That makes means that while these studies are important, they shouldn't be taken as gospel when it comes to automotive reliability. News Source: JD PowerImage Credit: Copyright 2015 Jeremy Korzeniewski / AOL Buick Fiat Ford GM Hyundai Jeep Land Rover Lexus MINI Mitsubishi RAM Scion Subaru Toyota Volkswagen Auto Repair Ownership study