Audi's new v6 TDI

BeetleGo

TDIClub Enthusiast, Pre-Forum Veteran Member
Joined
Oct 21, 1998
Location
Cambridge, MA
TDI
5-door, 5-speed Golf GLS replaced BeetleGo.
From Autoblog: http://www.autoblog.com/2014/05/09/audi-details-updated-3L-v6-tdi-engine/

The brands in the Volkswagen Group have shown that they can develop some of the world's best diesel engines for passenger cars. At the Vienna Motor Symposium taking place May 8 and 9, Audi has an updated one to add to its lineup. It's launching a new version of the 3.0 TDI V6 with better efficiency and more power than the version currently in the US.

The new diesel will be offered in two tunes: 215 horsepower or 268 hp. However, Audi isn't giving away all of the new engine's secrets just yet. It says "depending on model" the mill makes as much as 442.5 pound-feet of torque and gets as much as 13 percent better fuel economy. That likely means the more powerful version gets the twist, and the other one has the better consumption, but we'll have to see.

To compare, the current 3.0 TDI offered in the US produces 240 hp and 428 lb-ft of torque. In the A6, it's rated at 24 miles per gallon city, 38 mpg highway and 29 mpg combined, according to the EPA.

To achieve these improvements, Audi packed the engine with technology. It has low-friction piston rings and pins. There are separate coolant loops for the crankcase and the redesigned cylinder heads. Likely the biggest change is that the NOx storage catalytic converter, diesel particulate filter and SCR injection system are combined into a single assembly, which the company claims is a first for automobiles. The upgrades allow it to meet Euro 6 emissions standards.

Audi is also showing a new seven-speed dual‑clutch transmission for models with longitudinal engines and front‑wheel drive in Vienna. The company doesn't say when either product would find its way into new models, though. Scroll down to read more details about them.

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Power and efficiency: Audi presents new 3.0 TDI at Vienna Motor Symposium

 New three-liter V6 as "clean diesel" and Euro 6 classification
 Two versions with 160 kW (218 hp) and 200 kW (272 hp)
 13 ultra models with extremely low fuel consumption in the Audi lineup

Ingolstadt/Vienna, May 8, 2014 – More powerful, more efficient and cleaner than ever: Audi presents the latest generation of its 3.0 TDI engine at the 35th International Vienna Motor Symposium May 8 and 9. The V6 diesel boasts innovative solutions in many fields of technology.

As Prof. Rupert Stadler, Chairman of the Board of Management of AUDI AG, explains: "TDI engines are a central part of our technology mix for the mobility of tomorrow. We have continued to perfect this technology over several decades and believe there is still potential for increasingy efficiency in the future too."

"The new 3.0 TDI substantiates our claim as the leader in diesel technology," said Prof. Dr. Ulrich Hackenberg, Member of the Board of Management of AUDI AG, Technical Development. "We have led the competition ever since the first TDI engine 25 years ago, and are constantly extending this lead with new ideas."

Audi offers the exhaust turbocharged V6 in two versions producing 160 kW (218 hp) and 200 kW (272 hp). It features a 90-degree cylinder bank angle and a displacement of 2,967 cc. Peak torque is as much as 600 Nm (442.5 lb-ft) depending on the model. Although the new 3.0 TDI is significantly more powerful than its predecessor, it is – again depending on the model – as much as 13 percent more fuel efficient.

The new V6 diesel is packed with numerous high-end features. The piston rings and pins have been optimized for minimal friction. The crankcase and the newly designed cylinder heads have separate coolant loops. The updated, innovative thermal management system improves efficiency even further. The turbocharger and the fully variable-load oil pump have also been updated. For the first time in automotive history, a NOx storage catalytic converter has been combined with a diesel particulate filter and SCR injection in a single assembly.

The exhaust gas after-treatment integrated into the engine package satisfies the most stringent of emissions legislation, including the Euro 6 standard. It also reduces CO2 emissions by an average of 15 grams (24.1 g/mi). This improvement earns the 3.0 TDI the "clean diesel" suffix.

The Audi lineup offers a broad choice of diesel engines with four, six and eight cylinders. It begins with the 1.6 TDI, includes the 2.0 TDI and 3.0 TDI, and tops out with the 4.2 TDI producing 283 kW (385 hp) and 850 Nm (626.9 lb-ft) of torque in the Audi A8 [7.4 l/100 km (31.8 US mpg), 194 g CO2 per km (312.2 g/mi)]. All of these engines combine ample power with groundbreaking efficiency, particularly in the 13 ultra models currently available. The Audi A4 1.6 TDI ultra, for example, consumes on average just 3.2 liters of fuel per 100 kilometres (73.5 US mpg) [85 grams CO2 per km (136.8 g/mi)]. These same figures for the A4 2.0 TDI ultra are 4.0 liters per 100 kilometers (58.8 US mpg) [104 grams CO2 per km (167.4 g/mi)] and for the A6 2.0 TDI ultra with S tronic 4.4 liters per 100 kilometres (53.5 US mpg) [114 grams CO2 per km (183.5 g/mi)].

Audi continues to honor a small tradition with the presentation of the new 3.0 TDI engine at the 35th International Vienna Motor Symposium taking place May 8 and 9 at the Congress Center Hofburg. The company presented its five-cylinder TFSI engine here in 2009 and in 2010 the (at that time) new 3.0 TDI. The premieres of the 3.0 TDI biturbo and the new 1.8 TFSI followed in 2011. Audi presented the 4.0 TFSI in 2012, and the company first presented the V6 TDI for the Audi R18 e-tron quattro race car to the public at the 2013 Vienna Motor Symposium.

"The Vienna Motor Symposium offers us an excellent stage for our technologies," said Dr. Stefan Knirsch, Head of Engine Development. "We can present our innovations and discuss them here with experts from all around the world." Besides the new 3.0 TDI, Audi is also presenting another innovation in Vienna: a new seven-speed dual-clutch transmission for models with longitudinal engines and front-wheel drive. The latest- generation S tronic is extremely sporty, yet very comfortable. The newly developed dual-clutch transmission impresses with its high efficiency, reducing CO2 emissions by as much as 10 grams per kilometer (16.1 g/mi).
 

Andy_2009_JSW

Veteran Member
Joined
Nov 4, 2008
Location
Atlanta, GA
TDI
2009 Jetta Sportwagen TDI (DSG)[SOLD BACK], 2012 Golf 2.5L Gasser (5MT), 2017 Alltrack S (6MT)
Likely the biggest change is that the NOx storage catalytic converter, diesel particulate filter and SCR injection system are combined into a single assembly, which the company claims is a first for automobiles. The upgrades allow it to meet Euro 6 emissions standards.
As an '09 owner with the dpf-and-cat-as-one-assembly design, my big concern is what happens/how much will it cost when (not if) the DPF fills up and needs serviced/replaced...
 

cevans

TDIClub Enthusiast, TDI Parts Ninja Vendor , w/Bus
Joined
Sep 24, 2002
Location
Hingham, MA
TDI
2015 Beetle Conv. TDI 6-Speed & 2006 E320 CDI
MPGs are always a good thing!!

I could do without the 440+ ft-lbs of torque, but increasing fuel economy is always a good thing!!

As for Andy's concern, there is a definite trend that the first-gen DPFs weren't very good, but the gen 2 and gen 3 DPF designs are actually quite good. I would feel more comfortable with a 2015 emissions system than a 2009 emissions system.
 

frugality

Top Post Dawg
Joined
Sep 19, 2003
Location
Spring Lake, Michigan
TDI
none, 2016 GTI
The 2.0TDI is oversized. There's hardly ever a need to wind it past 3k. I wish they'd gone the other direction, and given us a 1.8TDI. That said, I'm averaging 43mpg, so I'm not complaining much. But a V6 with 440 ft-lb. is just useless unless you have AWD to put the power down to the ground, and is probably only useful if you're pulling a trailer or something. My 236 ft-lbs. of torque kept my front wheels breaking loose all the time this past ice-age winter, even with snow tires.
 

donDavide

Veteran Member
Joined
Oct 4, 2005
Location
Severna Park, Maryland USA
TDI
2003 Jetta ;2006 Golf; 2015 Jetta S
The 2.0TDI is oversized. There's hardly ever a need to wind it past 3k..
In the B7 I owned, I thought it lacked power and if you had to pass on Hiway or back road it lacked. Peppy in normal around town driving though. A chip may have helped the passing issue, But my B6 VR6 handles that issue now.
 
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