From an Official Vauxhall Press release (for Mk 2 Facelift i.e. 2012-13 models)
This
new diesel unit is among the most efficient engines in its capacity class. Its
high specific power output, low emissions and reduced NVH are achieved by use
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Engine block with high structural rigidity (reduced noise and vibration)
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Engine block cooling jacket with horizontal cooling-fin design (optimised cooling)
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Dual-mass flywheel (reduced drivetrain vibration)
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Oil-pump integrated balance shaft module (compactness, reduced engine vibration)
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New DOHC aluminium cylinder head with variable swirl control (flow and swirl
properties)
- Watercooled turbocharger with charge air
cooling and variable turbine geometry
(cylinder
charging and driveability)
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Maintenance-free camshaft chain drive with automatic chain tensioner
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Fuel injection pressure up to 1,800 bar (mixture preparation)
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Compression ratio reduced to 16.3:1 (increased power, reduced emissions and
combustion noise)
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Optimised pre-heating system (improved cold-weather starting)
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Exhaust gas recirculation with highly efficient cooling system (emissions
reduction)
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Maintenance-free close-coupled diesel particulate filter (DPF)
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Pistons with oil-spray cooling
<h1 style="margin: 0cm 0cm 0pt; line-height: 18pt;">Optional
manual or automatic transmission</h1>
Two
new six-speed transmission systems, one manually-operated and one automatic, combine
efficiency with ease of operation. High-tech details like precision-designed
"Monoblock" gear wheels and upgraded bearing elements in the manual
gearbox ensure fluent gear changes and minimise friction and vibration.
A
widely-spaced final drive ratio allows excellent response in first gear
combined with a relaxed cruising gait in top gear. In addition, drivers have
two programs available at the push of a button, depending on whether they want
to "cruise" or drive more enthusiastically. The transmission also
includes an automatic stage-by-stage braking system, which prevents unwanted up-shifts
while the vehicle is coasting downhill.
<h1 style="margin: 0cm 0cm 0pt; line-height: 18pt;">Optional
front-wheel or all-wheel drive</h1>
Depending
on their needs, Antara buyers can specify their Antara with either front- or variable
all-wheel drive. The latter combines the advantages of front-wheel drive – such
as low fuel consumption – with additional power, grip and safety.
The
all-wheel drive Antara uses a system called ITCC (Intelligent Torque Controlled
Coupling) which uses an electromagnetic pilot coupling and hydraulic
multi-plate wet clutch housed in a single rear axle module unit. This
combination ensures an ultra-quick response to changing road conditions, while
also making the unit compact, lightweight and maintenance-free.
Working
together, the ITCC and electronic stability control (ESC) continually compare
wheel-speed, steering angles and accelerator position, and if traction is poor
across the front axle, the system reacts within 0.1 seconds to seamlessly
re-distribute power as required. Depending on driving conditions, the torque
distribution range spans from 100 per cent front-wheel drive to 50 per cent
across each axle, and all variations in between.