|Wednesday, 31-May-2023 01:47:28 CEST|
Editor/Photographer : Mark Charles
29 2008 |
THE NEW JAGUAR XF DIESEL S
new XF V6 Diesel S – combining superb performance and excellent fuel economy -
sets the pace with acceleration from 0-60mph in 5.9 seconds, a maximum speed of
155mph, yet delivers an average fuel consumption of 42mpg and CO2 emissions of
179g/km: Truly the best of both worlds!”
NEW XF DIESEL S – In Brief
CO2 emissions of 179g/km, 42mpg average fuel economy and 0-60mph acceleration
in 5.9 seconds, this is another great example of Jaguar delivering unrivalled
performance while at the same time taking the level of refinement in diesel engines
to a whole new level.”
When it was introduced last year, the XF was recognised as a dramatic expression of a bold new Jaguar design language. It also soon became apparent that here was a car where the driving experience exceeded the expectations created by the striking appearance. Now, the new XF Diesel S takes this driving experience to new levels, shifting the balance even further towards dynamic performance while still retaining the XF’s core values as a refined and luxurious sports saloon.
Distinguished by discreet ‘S’ badging, the car that defines Jaguar sporting luxury is even better for the 2010 model year, with a stunning new high-performance diesel. Powered by a 275PS engine, the Diesel S gives the XF outstanding levels of performance, accelerating from 0-60mph in just 5.9 seconds, 1.8 seconds quicker than the excellent 2.7-litre model. In-gear acceleration is equally impressive, with a 50-70mph time of just 3.2 seconds. Maximum speed is electronically limited to 155mph.
Featuring parallel sequential turbochargers to help deliver the high levels of power and torque seamlessly and with effortless flexibility, this engine is perfectly matched to Jaguar’s sophisticated six-speed ZF 6HP28 automatic transmission.
new parallel sequential turbocharger system on our new V6 diesel delivers V8 levels
of performance from very low revs. It’s a power unit that offers superb flexibility
and remarkably low fuel consumption and emissions, while building on the refinement
that has become a trademark of our Jaguar diesel engines.”
There is an equally impressive 240PS version of the new 3.0-litre engine available too, which produces 16 percent more power and a 15 percent increase in torque over the 2.7-litre diesel, allowing the XF to reach 60mph in 6.7 seconds. Its 50-70mph time of just 3.7 seconds is only fractionally slower than the 275PS Diesel S model. Maximum speed is 149mph. And like the 275PS engine, these great performance leaps are achieved with combined average fuel consumption of 42.0mpg – an improvement on the 2.7-litre diesel of over 10 percent – and a CO2 emissions rating of only 179g/km.
There are also significant trim and specification changes – including many new features – and the introduction of a new Portfolio derivative as part of the core range. For Jaguar and the new 2010 model year XF, the high-performance diesel has truly arrived. Pricing for the 2010 model year diesels – which will carry a premium over the current 2.7 – will be announced shortly.
The acclaimed XF 2.7 Diesel has won several accolades, including in the UK What Car magazine’s ‘Diesel Car of the Year’ and ‘Car of the Year’, What Diesel magazine’s ‘Diesel Car of the Year’ and the Association of Scottish Motoring Writers’ Best Diesel of 2008. Additionally, the XJ 2.7-litre Diesel was also named Britain’s greenest luxury car in the Environmental Transport Association’s 2008 Car Buyers Guide for the second year running.
THE NEW AJ-V6D GEN III ENGINE - IN DETAIL
Drawing on the experience gained in designing the original, acclaimed 2.7-litre engine, the new 3.0-litre AJ-V6D Gen III diesels demonstrate that it is possible to deliver improved performance, while reducing CO2 emissions and fuel economy. In the XF, the new engine produces 10 percent less CO2 than the 2.7-litre, while power has increased by 33 percent in Diesel S guise. As well as tackling CO2, the new 3.0-litre engines meet the forthcoming EU5 regulations, due to come into force at the start of 2011. And these great performance leaps are achieved with combined average fuel consumption in both models of 42.0mpg – an improvement on the 2.7-litre engine of 12 percent.
– maximum efficiency, instant response
Delivering high torque throughout the entire engine rev range, improved throttle response and low CO2 emissions, the twin-turbochargers work sequentially to deliver unrivalled response and best-in-class torque – an impressive 61 percent more than the 2.7-litre diesel from 1500rpm – while packing a huge punch at higher engine speeds.
For most day-to-day driving, including motorway cruising, a responsive, variable-geometry primary turbocharger does all the work, while the smaller, fixed-geometry, secondary turbo is dormant, saving energy and improving efficiency. When the engine revs climb above 2800rpm, the secondary turbo is brought on line within 300 milliseconds, smoothly and seamlessly boosting the engine output with no discernible turbo-lag or power-step.
Driving a turbocharger requires pressure from the exhaust, creating pumping losses in the engine and increasing fuel consumption. To alleviate this, valves under the control of the engine management system isolate the secondary turbocharger both from the exhaust stream and the engine inlet tract when it is not required.
Some twin-turbo systems rely on a smaller turbo for primary use, only using a larger turbo when higher power is required. Though effective, this has the disadvantage of raised exhaust pressure and increased pumping losses. The Jaguar system uses a larger, variable-geometry turbocharger more of the time, which not only reduces pumping losses, but also improves fuel consumption and CO2 emissions.
Jaguar engineers particularly focussed on the issue of turbocharger ‘lag’ at low engine speeds. The new AJ-V6D Gen III 3.0-litre diesels significantly out-perform their rivals by delivering 500Nm of torque in only 500 milliseconds from idle.
Piezo crystal ‘packs’ operate each injector by expanding when an electric current is passed through them. They react virtually instantaneously but can make a distinctive click when fired, which can add to diesel engine noise at idle. The crystals in Jaguar’s new injectors are fitted nearer the tip, meaning they are mounted deeper inside the engine providing better sound insulation and quieter operation.
Another new feature of the third-generation fuel-injection system is the metering mode. Traditional diesel commonrail fuel pumps oversupply the injectors, with the surplus being returned to the fuel tank. During this process, fuel temperature increases and cooling it again consumes considerable amounts of energy. In metering mode, the pump delivers fuel to the injectors only at the rate required. Consequentially, there is no rise in fuel temperature and no wasted energy.
light and clean
The new, water-cooled, exhaust gas recirculation system (EGR), important for reducing pumping losses and emissions of NOX in a diesel engine, is more efficient and consumes less power than the 2.7-litre unit. The valves that allow exhaust gas into the system are located on the ‘hot side’ of the engine nearest the exhaust manifolds; these valves never cool while the engine is running, so there is no condensation of combustion deposits which occurs on engines fitted with ‘cold side’ valves, hence the EGR system always works at maximum efficiency. Since the EGR cooling is so effective, exhaust gasses can bypass the system and return to the exhaust pipes, allowing faster engine warm-up from start-up and reducing emissions still further.
EU5 emissions regulations have been achieved ahead of the 2011 legislative timetable using conventional diesel oxidation catalysts and diesel particulate filters (DPFs). NOX levels are reduced at source through the combustion system design, the addition of the new commonrail injection system and the new EGR system with by-pass. As a result, specialised NOX exhaust after-treatment is unnecessary, avoiding a potential cost and the need to use additional precious metals in the exhaust system.
quiet for a diesel
Internal friction, a major contributor to unnecessary fuel consumption, has been addressed by careful optimisation of the crankshaft, valves and pistons. All these features combine to make the new Jaguar AJ-V6D Gen III engines amongst the quietest premium diesels on the market.
major step forward
new XF challenges the rules and redefines Jaguar sporting luxury. Our designers
and engineers have worked together to develop elegant, inspired solutions to complex
technical challenges. It’s a simple but very effective philosophy and the result
is great new products like the new 3.0-litre diesel XF.”
Jaguar reveals the new generation X-type
Jaguar/Land Rover bidders need more time
'Jaguar' badge for the chop - designer
Revealed - The all-new 2009 Jaguar XF
ODriscoll replaces Boerio as Jaguar MD
Jaguar collects customer service plaudits
Jaguar take sthe number one position in the 2007 J.D. Power study
Ford readies Jaguar and Ford for sale
2007 Jaguar XK wins Autonerve magazine "Best Convertible" award
Jaguar X-typenamed top aspirational luxury car
Jaguar XKR convertible tops 2007 best road trip car list
Jaguar XJ named one of the safest cars
Robert Motors celebrates 25 years of success
The all-new Jaguar C-XF revealed
S type revised
Top Gear crowns Jaguar XK 'Car of the year 2006
Jaguar cars announces the new Jaguar XF
Jaguar Canada announces all-new-2007 XKR coupe and convertible pricing and option packges
Jaguar USA announces 2007 XKR coupe and convertible pricing and option packages
Jaguar supports home show with global debut of supercharged XKR
Jaguar announces its new advanced vehicle entertainment technology
Callum brothers win 2006 Jim Clark memorial award
Jaguar XJ voted best large executive car at the Auto Express Used Car Honours 2006
Jaguar Land Rover North America announces new vice president of customer service
Jaguar sells off Browns Lane site
AAA names the Jaguar XJ8L as top car pick for 2006
Ford says of Jaguar - safe in our hands
The new Jaguar XK winner of "What Car?" award
Jaguar announces all-new 2007 XK coupe and convertible pricing
Jaguar reveals all-new XK convertible
All-new Jaguar XK premieres world-first deployable bonnet system
All-new Jaguar XK is unveiled atFrankfurt show
Jaguar unveils all-new XK sports car
Jaguar announces new vice president
Tne new XJ 2.7 diesel and 2006MY XJ range
Jaguar brings tpgether emerging artists
Daimler returns with an all-new model, the Super Eight.
Geoff Polites is appointed CEO of Jaguar
New XJ 2.7 Diesel and 2006MY XJ range
Jaguar announces mobility program
Jaguar XJ wins best luxury car in the 2005 fleet world honours
Jaguar revises prices for 2005 S-type and XJ models
Jaguar appoints new global Advertising Agency
Jaguar X-type diesel even more tax efficient
Tim Watson appointed new communications chief
Jaguar's best ever year in Europe
Jaguar advanced lightweight coupe makes world debut
Limited edition Jaguar XK 'VICTORY'
More job losses likely say unions
Bonspeed X type at SEMA, Las Vegas
Jaguar scoopsScottish luxury and diesel categoryawards
Jaguar Canada reports September sales
Chinese Grand Prix Saturday Qualifying
Chinese Grand Prix Friday Practice Sessions
Jaguar workers stalk Ford in Paris
Jaguar workers back call for industrial action ballot
Jaguar to drop British Racing Green
leaps forwardin 2004 in
Jaguar North America expands conservation trust
Jaguar question to be put to Commons
Jaguar production to end at Browns Lane
Jaguar cuts production due to poor US sales
Belgian Grand Prix - Qualifying
Jaguar factory capacity cut announcement "weeks away"
Jaguar fears on factory closure
Jaguar North America dedicates its archives
Jaguar exhibits the iconic E-type at the design museum
Plans to cut Jaguar production
Jaguar "People Solutions" in the frame for prestigious award
European Grand Prix - Qualifying
European Grand Prix - Practice
Monaco Grand Prix - qualifying
Spanish Grand Prix - qualifying
Jaguar U.S.announce executive appoinments
"Browns Lane plant to close" rumour
Jaguar select edition captures award
Jaguar racing engine makes successful debut
X-type estate makes its debut at Frankfurt
Jaguar R-D6 concept unveiled at Frankfurt
Jaguar opens new test centre at the Nürburgring
TWR history goes under the hammer
French Grand Prix - Saturday Qualifying
Jaguar to premiere new V6 diesel engine
New Jaguar sports car sets the pace
Jaguar boss announces retirement
Lap record eases heat on Jaguar
Canadian debut of the 2004 XJ sedan
Jaguar Daimler Heritage Trust at Techno Classica Essen
Jaguar to temporarily suspend X-type production
Jaguar from latest Bond film at British Motor Show
Jaguar announces expanded 2002 Trans-Am Series Contingency Award Program
Jaguar Heritage on display at Techno Classica Essen
Jaguar Racing unveiled its 2002 challenger, the Jaguar R3
Jaguar Racing and ChevronTexaco to end their technical relationship
Frank Sinatra's XJ40 sold at auction
Jaguar presents the R Coupe concept
New organization for North America
|This site has no connection whatsoever with Jaguar Cars Ltd|