All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

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Thread: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

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    All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Opel Media Online
    2014-09-10

    - New generation, 125 kW/170 hp 2.0 CDTI for Insignia and Zafira Tourer
    - Power density increased; fuel consumption and CO2 emissions reduced
    - Outstanding running refinement with low noise, vibration and harshness
    - Selective Catalytic Reduction (SCR) enables Euro 6 compliance





    Rüsselsheim. High power, high torque, low fuel economy and emissions, all delivered with class-leading refinement: Opel’s new-generation, 2.0-liter turbo diesel ticks every important box. Making its debut in the Insignia and Zafira Tourer at “Mondial de l’Automobile 2014” in Paris (October 4 - 19), this state-of-the-art engine is another major step in the roll-out of Opel’s new powertrain portfolio.

    Packing 125 kW/170 hp and substantial torque of 400 Nm, it will replace the current 120 kW/ 163 hp 2.0 CDTI engine at the top of Opel’s diesel range. This highly efficient, Euro 6 compliant engine delivers almost five percent more horsepower and 14 percent more torque while reducing fuel consumption and CO2 emissions. Just as important, the engine is also impressively quiet and smooth as a result of Opel’s unwavering focus on ‘sound engineering’ measures to minimize NVH (noise, vibration, harshness).

    “This sophisticated engine makes a perfect partner for our top models Insignia and Zafira Tourer,” says Michael Ableson, Vice President Vehicle Engineering Europe. “Its high power density, refinement, frugality and sheer fun-to-drive qualities place it among the very best diesels in its class. With Euro 6 compliance, the new 2.0 CDTI fulfills future requirements today, and it will substantially enhance the appeal of our diesel portfolio.”

    Available next year, the new 2.0 CDTI is the first in a new family of large diesel engines developed in-house by a global team of engineers in Turin and Rüsselsheim supported by engineers in North America. It will be manufactured at Opel’s Kaiserslautern engine plant in Germany.

    Power density up: Fuel costs and emissions down

    Extracting as much energy from as little fuel as possible is key to both power and frugality, and with an exceptional specific output of 85 hp per liter – the same power density as Opel’s new-generation 1.6 CDTI – this engine is big on fun-to-drive but small in its impact on customers’ wallets. Impressive torque of 400 Nm is available from 1,750 to 2,500 rpm, and maximum power of 125 kW/170 hp is accessed at just 3,750 rpm.

    Key elements in the performance of the engine are the newly-designed combustion chamber, the re-profiled intake ports and the new fuel injection system with 2,000 bar and up to 10 injections per cylinder cycle. This ensures high power, improved fuel atomization and also contributes to quieter running. The definition of the combustion chamber alone was the subject of more than 80 computer design simulations, before the best five were finally selected for hardware development.

    The VGT (variable geometry turbocharger) features an electrical actuator for the variable aspect turbine, giving a 20 percent faster boost response than a vacuum actuator. Exceptionally compact packaging of the VGT and intercooler also minimizes the air volume between the turbocharger and engine, further contributing to a fast boost pressure build up. For durability, the turbocharger is water-cooled and has an oil filter fitted at the oil inlet point to help further reduce wear in the bearing system.

    The VGT and exhaust gas recirculation (EGR) module have been designed as a single system for optimal efficiency. The EGR module is based around a new stainless steel radiator concept which provides a near 90 percent cooling efficiency. An integrated, water-cooled EGR bypass valve minimizes pressure drop and its closed loop control offers a significant improvement in NOx/PM trade-off under transient driving conditions, while improving the management of HC and CO emissions.

    Smooth running: Diesel power with turbine-like refinement

    A consistent improvement in NVH characteristics under all operating conditions was a key requirement for the new engine right from the outset of its design. Several CAE acoustic optimization loops were executed on each component and sub-system even before the first prototype engines were built.

    Architectural improvements focused on two high noise emitting areas: the top and bottom of the engine. A new aluminum cylinder head design, including the addition of a decoupled, plastic cam cover with isolated fixings and a sealing gasket, improves noise attenuation. And the intake manifold is also wrapped in a single shell cover made of sound-absorbing material.

    At the bottom of the engine, a new balancer shaft module is fitted, made of high pressure die-cast aluminum. It houses two counter-rotating shafts which offset up to 83 percent of secondary order engine vibrations. A helical gear on the crankshaft drives one of the balancer shafts, which is geared to drive the other shaft. Scissor gear control ensures smooth gear teeth meshing, and the elimination of a drive chain removes the risk of rattle noise. After detailed analysis, plain instead of roller bearings were preferred for the balancer shafts to further reduce NVH, as well as weight.

    The design of the oil pan is also new. The previous single piece solution is now replaced by a two piece design, with a lower sheet metal pan fixed to an upper section in high pressure, die-cast aluminum. NVH performance was further improved by several analysis loops to acoustically optimize the internal and external ribs of both sections.

    Other detailed sound engineering measures to reduce operating noise include:

    optimized fuel injection patterns for reduced combustion noise without compromising fuel economy; acoustically-designed ribs in the cast iron cylinder block; individual balancing of the VGT compressor and turbine wheels; improved teeth-meshing on the timing belt and decoupled mounting points for its cover.

    As a result of all these design features, the new engine emits less noise than its predecessor throughout its operating range, and is five decibels quieter at idle.

    Clean running with Selective Catalytic Reduction (SCR)

    The new 2.0 CDTI runs as clean as a gasoline engine with Opel’s BlueInjection selective catalytic reduction (SCR) system, which assures compliance with Euro 6 emissions standards.

    BlueInjection is an after-treatment which removes nitrogen oxide (NOx) from the engine’s exhaust gases. Tiny quantities of AdBlue®, a harmless fluid consisting of urea and water, are injected into the exhaust gas flow ahead of the SCR catalyst and downstream of the Diesel Particulate Filter (DPF). The solution is immediately converted into ammonia (NH3), which is absorbed by the SCR catalyst. Nitrogen oxide (NOx) in the passing exhaust gas is then selectively reduced to harmless nitrogen and water vapor in a chemical reaction with the ammonia.

    The AdBlue solution, available at filling stations and Opel dealerships, is stored in a tank, which can be topped up as required via a nozzle adjacent to the vehicle’s fuel filler cap.

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    I believe we'll be seeing this in the ATS soon.

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    This + the Chevy Equinox = sold.

    OR

    This + the Chevy Malibu = sold.

    OR

    This + GMC Terrain = sold.
    Last edited by NoStopN; 09-10-2014 at 11:57 AM.
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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Cadillac, there is your entry diesel for europe.

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Why not put this in the Verano or Regal.
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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Quote Originally Posted by NoStopN View Post
    This + GMC Terrain = sold.
    This intrigues me. What better way to reinforce GMC's "professional grade" marketing and create a unique product.

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Hopefully it is as smooth as they say it is. How many times has GM said "great new engine" and it turn out to have NVH issues (with the exclusion of V8's)?

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Quote Originally Posted by sydtron View Post
    This intrigues me. What better way to reinforce GMC's "professional grade" marketing and create a unique product.
    I think Terrain and Verano are no brainers. The Verano can charge a slight more premium than Chevy and compete against VW. I think the Terrain would be a good use as well, but they may wait until the redesign in 2016/2017.

    Quote Originally Posted by BlackGTP View Post
    Hopefully it is as smooth as they say it is. How many times has GM said "great new engine" and it turn out to have NVH issues (with the exclusion of V8's)?
    I think that's been true for the 4 Cylinders, but that's a new art that they're learning

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Quote Originally Posted by dslay04 View Post
    I believe we'll be seeing this in the ATS soon.
    And CTS I hope. Cadillac needs an answer for all those Audi A6 2.0 TDI, BMW 520d and E200 CDI out there.

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Quote Originally Posted by dslay04 View Post
    I believe we'll be seeing this in the ATS soon.
    Quote Originally Posted by Toto View Post
    Cadillac, there is your entry diesel for europe.
    While this would be ok, I think the best option for the first diesel in NA in a Cadillac is a two-stage 2.0L, such as the one already made by GM for the Insignia. Perfectly loveable engine for a CTS. I think the US market would embrace a top-end engine more than one like this, which is really a very good engine for volume in Europe.

    Otherwise I like the idea of a 1.6L VTG diesel engine for ATS and other premium smaller Cadillac/Buick models.

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Sounds like a really nice engine, though I laugh at it being called a "large diesel".

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Could be applied across the board here in the states on passenger vehicles. That would be pretty sweet!

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Quote Originally Posted by Harry_Dunne View Post
    While this would be ok, I think the best option for the first diesel in NA in a Cadillac is a two-stage 2.0L, such as the one already made by GM for the Insignia. Perfectly loveable engine for a CTS. I think the US market would embrace a top-end engine more than one like this, which is really a very good engine for volume in Europe.

    Otherwise I like the idea of a 1.6L VTG diesel engine for ATS and other premium smaller Cadillac/Buick models.
    The current 2.0 CDTI BiTurbo is older as it seems. Opel showed the BiTurbo around 2008/2009. Even before Insignia production started, the engine was suddenly canceled. After 3 or 4 years later the engine was reintroduced. Maybe GolfBravo knows the reason why.

    However, performance wise this new engine is very close to the 'old' BiTurbo but with better fuel consumption and NVH.

    2.0 CDTI BiTurbo
    143kW (195hp) @ 4,000rpm
    400Nm @ 1,750-2,500rpm
    4.7l/100km combined (Insignia sedan, FWD, 6MT, start/stop)

    old 2.0 CDTI
    120kW (163hp) @ 4,000rpm
    350Nm (380Nm with Overboost) @ 1,750-2,500rpm
    4.3l/100km combined (Insignia sedan, FWD, 6MT, start/stop)

    new 2.0 CDTI
    125kW (170hp) @ 3,750rpm
    400Nm @ 1,750-2,500rpm

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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    If..... you own a "brand X" TD from oh say..... 2005 ish forward and especially from 2012 forward for some ..... in the 'States...... you gotta' appreciate at least three .....or more of the design features on this one.
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    Re: All-new Opel 2.0 CDTI: New Generation Large Diesel Debuts in Paris

    Quote Originally Posted by NoStopN View Post
    This + the Chevy Equinox = sold.

    OR

    This + the Chevy Malibu = sold.

    OR

    This + GMC Terrain = sold.
    I was in Paris last week on vacation and actually saw a Malibu LTZ diesel. Walked right past it and heard the diesel clatter. It was very weird to hear that noise from a Malibu!
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