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mahatmakanejeeves

(56,884 posts)
Fri Nov 27, 2015, 10:33 AM Nov 2015

Audi engines implicated in VW emissions scandal

Source: MarketWatch

Audi engines implicated in VW emissions scandal

Published: Nov 27, 2015 2:28 a.m. ET
By William Boston

Engines from Volkswagen AG's luxury brand Audi AG have been implicated in the German car maker's emissions crisis, leading the unit to suspend two engineers suspected of rigging engines to cheat emissions tests. ... Authorities in the U.S. and Germany have launched investigations of the world's No. 2 premium car maker on Wednesday, marking the first time that engines built by Audi for the Volkswagen group are clearly in the focus of the emissions crisis.

The emissions scandal, which broke on Sept. 18, involved diesel engines built by the VW brand that were also used by Audi and other units of the Volkswagen group. The new U.S. and German investigations focus on larger three-liter V6 engines designed and built by Audi. U.S. environmental authorities have said that one model of the V6 engine contained software to circumvent emissions tests, known as a defeat device.

In an interview published Thursday, Audi Chief Executive Rupert Stadler told a regional German newspaper that the company's engineers--who had repeatedly told the management board that the three-liter V6 didn't contain a defeat device--changed their story during a board meeting last week.

"I asked them: Is that a defeat device?" Mr. Stadler told Donaukurier in an interview that appeared on the newspaper's website. "And then they said, 'We have to assume that in the USA part of the software that controls the [engine] heating function can probably be considered a defeat device."
....

Write to William Boston at william.boston@wsj.com, Friedrich Geiger at friedrich.geiger@wsj.com and Mike Spector at mike.spector@wsj.com

Read more: http://www.marketwatch.com/story/audi-engines-implicated-in-vw-emissions-scandal-2015-11-27



The story is also in The Wall Street Journal., but you need a subscription to read it.

Business

Audi Engines Implicated in Volkswagen Emissions Scandal

Luxury car maker suspends two engineers amid U.S., German probes into V6 engines

By William Boston, Friedrich Geiger and Mike Spector
Write to William Boston at william.boston@wsj.com, Friedrich Geiger at friedrich.geiger@wsj.com and Mike Spector at mike.spector@wsj.com

Updated Nov. 27, 2015 4:26 a.m. ET

Engines from Volkswagen AG’s luxury brand Audi AG have been implicated in the German car maker’s emissions crisis, leading the unit to suspend two engineers suspected of rigging engines to cheat emissions tests.
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Audi engines implicated in VW emissions scandal (Original Post) mahatmakanejeeves Nov 2015 OP
wonder if this is another diesel engine, or gasoline? (n/t) thesquanderer Nov 2015 #1
Audi develops fix for 3.0-liter TDI diesel engines mahatmakanejeeves Nov 2015 #2
You mean clean diesel is a lie? d_legendary1 Nov 2015 #3
That might be going a little far. mahatmakanejeeves Nov 2015 #4

mahatmakanejeeves

(56,884 posts)
2. Audi develops fix for 3.0-liter TDI diesel engines
Fri Nov 27, 2015, 01:16 PM
Nov 2015
Audi develops fix for 3.0-liter TDI diesel engines

November 24, 2015
by Jay Ramey

Software solution for 85,000 vehicles to be presented for approval

Audi has announced a fix to correct the software in some 85,000 vehicles, some of which were initially named in a Notice of Violation (NOV) issued by the EPA at the beginning of the month, Automotive News Europe reports. The action follows the reveal of a number of technical solutions to German regulators last week, with VW AG announcing that it was presenting for approval the required modifications for a number of diesel engines.

"Audi will revise, document in detail, and resubmit for US approval certain parameters of the engine-management software used in the V6 TDI 3 liter diesel engine," the automaker said in a statement. "That is the result of the discussions held between a delegation from AUDI AG and the US Environmental Protection Agency (EPA) and the California Air Resources Board (CARB). The updated software will be installed as soon as it is approved by the authorities. The three brands Audi, Porsche and Volkswagen are affected. Audi estimates that the related expense will be in the mid-double-digit millions of euros."

Audi had initially denied that the 3.0-liter diesel engines, offered in a number of models in North America, contained any kind of software that acted as a "defeat device," but had nevertheless halted sales of new and used models that feature that engine. The affected models include the A6, A7, A8, A8L, Q5 and Q7 models from the 2009 through the 2016 model year, along with the Porsche Cayenne Diesel and the Volkswagen Touareg TDI.

mahatmakanejeeves

(56,884 posts)
4. That might be going a little far.
Fri Nov 27, 2015, 03:06 PM
Nov 2015
Mercedes BlueTEC SUVs are 50-State Legal: Report

Mobile By gearlog Mar. 19, 2008 9:58 am

Diesel SUV fans can rejoice: Mercedes-Benz has become the world’s first car producer to receive a certificate for licensing BlueTEC SUVs in all 50 US states. It’s been true (seemingly forever) that diesels would only be sold in 45 (or even 42) states. But as we reported the other day, the Stuttgart-based manufacturer will soon launch three BlueTEC SUVs—the ML 320 BlueTEC, the R 320 BlueTEC and the GL 320 BlueTEC—which feature clean diesel technology that meets American Bin 5 and ULEV emission standards. Now the company can make the claim officially, and finally put to rest the big question mark over whether or not clean diesels will ever pass certification.

Here’s the rundown so far, as explained by Mercedes: “Components [normally used in diesel cars] include an oxidizing catalytic converter and a particulate filter. The primary objective, however, is to reduce nitrogen-oxide emissions drastically, since these are now the only exhaust-gas constituents that are more prevalent in diesel engines than they are in their petrol [gasoline] counterparts.

“Mercedes-Benz has developed two versions for this. Both the E 320 BlueTEC Saloon available in the US and the E 300 BlueTEC variant for the European market are equipped with a combination of oxidizing catalytic converter and particulate filter with an NOx storage catalytic converter and an additional SCR catalytic converter (SCR= Selective Catalytic Reduction). The second BlueTEC version is being used for the new GL 320 BlueTEC, ML 320 BlueTEC and R 320 BlueTEC models, in which AdBlue, a harmless aqueous urea solution, is injected into the exhaust-gas stream. This process releases ammonia, which converts up to 80 percent of the nitrogen oxides into harmless nitrogen and water by a process of reduction in the downstream SCR catalytic converter.” This latter system is enabling 50-state certification here in the U.S.

Source: Daimler Global Media
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