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VW Jetta TDI dyno shows HP loss trying to recreate cheat mode

Volkswagen is working on a fix for diesel-engined vehicles that are out of compliance with emissions regulations in the US and other countries. We're told that engineers will be presenting a solution internally sometime this month, but that doesn't mean we'll actually see it in the wild this month. One big question we have about the coming fix is, will it affect the car's performance? That question relates to another we have about the engine as it is: How much performance would the 2.0-liter diesel lose right now if it were turned down to pass US emissions? The Fast Lane Car tried to sketch some answers by going to a shop in Denver, Colorado to run a 2011 Jetta TDI with a six-speed DSG transmission on an all-wheel-drive dyno. The thinking was that if you ran all four wheels the car would think it was on the road, whereas if you ran only two the car might think it's being tested. We'll get straight to the numbers: the stock sedan is quoted at 140 horsepower and 236 pound-feet of torque. When run with all four wheels turning it produced an uncorrected 114 hp and 214 lb-ft at the wheels. When run with just two wheels in motion the Jetta got 113 hp and 188 lb-ft at the wheels. Reading the graph, we're told that power differences between the two runs were as much as 15 hp and 32 lb-ft. You'll need to take some salt with these numbers, though, because the dyno and test protocol in the video are nothing like those used by the EPA. The shop attempts to trick the Jetta into 'emissions testing mode' by using the front wheels only for the two-wheel-drive run, but we have a feeling the software code at issue is far more sophisticated than that, since the ICCT, UVA, the EPA, and CARB investigated the situation for more than a year and couldn't figure out. Also, the technician adjusts for being a mile above sea level with a correction factor of 1.2 applied to horsepower and torque, which inflates the disparity in the final power differences over the two runs. Go to YouTube and read the lengthy comments on the video left by Andrew Price for a more thorough dissection of what could explain TFL's disparities. You can watch the video above, and feel free to try and dissect the results yourselves in the comments below. Related Video:

VW Golf GTD wagon makes us swoon ahead of Geneva reveal

The European market is just crammed with power wagons we can't get our hands on: big ones like the Audi RS6 Avant and Jaguar XFR-S Sportbrake, but also little ones like the new Mercedes CLA45 AMG Shooting Brake, Skoda Octavia RS and Seat Leon ST Cupra. Now there'll be one more, and as you might have guessed, it comes from the Volkswagen Group. At the upcoming Geneva Motor Show, VW will present the new Golf GTD Variant. And if you're wondering what it's all about, it's all right there in the name: those three letters tell us it's a performance diesel, and the Variant name tells us it's a wagon (which we'd more readily recognize as the SportWagen on this side of the Atlantic). So there you have it: a performance-oriented diesel wagon, but not one we're never likely to see on American roads. If you ever did see one up close, though, you'd find a 2.0-liter turbodiesel four under the hood with 181 horsepower and 280 pound-feet of torque – enough to send this nimble oil tanker to 62 in 7.9 seconds, all the while returning over 53 miles per gallon (on the lenient European cycle, anyway). Along with the engine, VW has thrown in other GTD performance-minded bits, including a sports suspension and progressive steering. Visual telltales include unique front and rear bumpers, grilles, 17-inch alloys, blacked-out roof rails, smoked taillight lenses and an interior with plaid sports seats, stainless steel pedals... the works. European buyers will be able to enjoy all this and more while hauling all their stuff down the Autobahn, passing gas station after gas station in oil-burning bliss. World premiere of the new Golf GTD Variant - The perfect all-round package: sporty, economical, comfortable and spacious - Launch set for Geneva Motor Show Since 1982 Volkswagen's GTD logo has stood for Gran Turismo Diesel, with its promise of sporty yet economical motoring. Now for the first time, the GTD initials grace the Golf Variant, which like the Golf GTD, boasts the 184 PS (135 kW) TDI engine. The new Golf GTD Variant is set for its world premiere at the Geneva Motor Show, and is available to order as of now at a price of 31,975 euros. The Golf GTD Variant* is excellently placed to establish itself as an iconic long-distance cruiser.

Volkswagen recalls 20k Routans to replace ignition switch

Volkswagen is recalling 20,676 examples of the 2009-2010 Routan minivan to replace their key fobs and ignition switches. This new campaign is linked to one from FCA in March. In these vehicles, it's possible that if the switch is jarred, the key can be jostled out of the Run position. If this happens, then the engine shuts off, and the airbags, power steering and power brakes are all deactivated, which is a safety problem. The campaign to fix this issue began last year when FCA recalled 700,000 minivans, and the Routan was also affected because of its shared platform. However, in March 2015 FCA updated its recall to replace the whole ignition switch with an improved design, rather than the original plan of just a new detent ring. With this latest update, the VWs are getting the same fix. Until the minivans are repaired, VW says that drivers should remove all items from their key ring, including the fob. The recall is expected to begin in April for owners of the 2009 Routan and in August for the 2010 models, according to documents submitted to the National Highway Traffic Safety Administration (available here as a PDF). Some vehicles already have a new detent ring under the earlier recall, but they still need to be fixed again to get the ignition switch. Related Video: RECALL Subject : Ignition Switch may Turn Off Report Receipt Date: APR 01, 2015 NHTSA Campaign Number: 15V194000 Component(s): ELECTRICAL SYSTEM Potential Number of Units Affected: 20,676 All Products Associated with this Recall Vehicle Make Model Model Year(s) VOLKSWAGEN ROUTAN 2009-2010 Details Manufacturer: Volkswagen Group of America, Inc. SUMMARY: Volkswagen Group of America, Inc. (Volkswagen) is recalling certain model year 2009 Routan vehicles manufactured June 25, 2008, to June 10, 2009, and 2010 Routan vehicles manufactured October 1, 2009, to August 11, 2010. This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. Road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine. CONSEQUENCE: If the ignition key inadvertently moves into the OFF or ACCESSORY position, the engine will turn off, which will then depower various key safety systems including, but not limited to, air bags, power steering, and power braking.