2007 Audi A4 Quattro Base Sedan 4-door 2.0l on 2040-cars

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Audi H-Tron Concept is a familiar face now with hydrogen power

Audi shows its green side at the 2016 Detroit Auto Show with the H-Tron Concept, a hydrogen-fueled version of the recent E-Tron Quattro concept. The new fuel-cell powertrain gives the futuristic crossover an estimated range of 372.8 miles on the European cycle, and the company claims that the solar panel that spans the roof could let drivers recoup 621 miles of range each year from the sun's rays. The H-Tron's powertrain benefits from both the fuel cell and a lithium-ion battery for an extra boost. The hydrogen system alone can produce 148 horsepower, and three tanks under the passenger compartment carry the fuel. The battery can also provide enough energy for an extra 134 hp for short periods. Its combined torque rating of 406 pound-feet is impressive. The Audi puts the power down through electric motors at the front and rear axle to allow for an electrified version of Quattro all-wheel drive, and the automaker claims the concept could accelerate to 62 miles per hour in less than 7 seconds. Other than the new coat of eye-catching yellow paint for Detroit, the H-Tron looks largely the same as the E-Tron Quattro, and both of them also ride on the Volkswagen Group's second-generation modular longitudinal platform. The most notable tweaks to the outside are the smoother hood and larger openings in the lower fascia of the latest concept. The two vehicles are also twins on the inside, and they both feature cabins with Audi's latest virtual cockpit with OLED screens. Zero emissions: the Audi h-tron quattro concept Audi h-tron quattro concept High range, swift refueling, sporty road performance: The Audi h-tron quattro concept car can boast all these virtues. It combines a highly efficient fuel cell achieving an output of up to 110 kW with a powerful battery that can provide a temporary boost of 100 kW. The car can be fully refueled with hydrogen in around four minutes, and is then ready to drive for up to 600 kilometers (372.8 mi). In another major step, Audi will go into production with its new technologies for piloted driving and parking in 2017 along with the next generation of the A8 luxury sedan. The technology study already provides a glimpse of things to come. The Audi h-tron quattro concept is another milestone along the path towards future mobility.

Audi recalling 70k TDI models worldwide over braking problem

Audi is issuing a recall covering some 70,000 vehicles worldwide, due to problems with their brake boosters. According to Automotive News Europe, diesel-powered examples of the A4, A5, A6, A7 and Q7 are all being called back due to this issue.
The report indicates that while the brakes in these vehicles still function, the enhancing power from the booster may fail due to a possible leaky membrane.
All of the affected vehicles are powered by the 3.0-liter TDI turbodiesel V6, and were built between March and December of 2012. It is unclear as of this writing how many of these vehicles are in the States, though remember, US customers are not privy to 3.0 TDI examples of the A4 or A5. Autoblog has reached out to Audi for specific numbers, and we'll update this space when we hear more.

To solve diesel problem, VW might need two fixes

Volkswagen says that a fix is on the way for its 11 million vehicles around the globe that are equipped with diesel engine software that can evade emissions tests. The problem might be far more complicated than simply creating a single solution for all of them, though. According to Automotive News citing Reuters, two remedies to cover different NOx-reducing systems could be necessary, and both potentially affect performance. Earlier examples of the EA 189 diesel engine used a lean NOx trap to reduce the harmful material coming from the tailpipe. According to experts in the Automotive News report, a software update might allow the engines to achieve compliance, but that could affect fuel economy. VW already tried this route once before the scandal came to light, but tests by the California Air Resources Board still showed the figures were too high. Later, some of the 2.0 TDI engines began using Selective Catalytic Reduction that reduced NOx by injecting a urea solution into the exhaust stream. According to Automotive News, a software update for this equipment might increase the amount of the substance used. Not only would that mean topping up the fluid more often, but there still could be some reduction in fuel economy. But, since the 2-liter, 4-cylinder TDI engine that sits inside the diesel vehicles first mentioned as being affected by the issue in the US don't have a urea treatment system, VW would need to install them into these cars. VW still hasn't officially outlined its solution (or solutions) to the emissions issue but is expected to soon. The automaker's long-term evasion of regulations with these diesel engines pumped vast quantities of additional NOx into the air. The substance is known to be linked with smog and acid rain. The US Department of Justice is already beginning an investigation into the company, and politicians are pushing for harsh punishments.