All-new SEAT Leon
The all-new SEAT Leon has been developed with the real world in mind, with a range of powertrains that now also includes three electrified variants to boost efficiency even further. The new-generation compact car benefits from petrol (TSI), diesel (TDI), compressed natural gas (TGI), mild-hybrid (eTSI) and plug-in hybrid (eHybrid) units, each designed to deliver the highest levels of performance and driveability, giving customers the right combination of vehicle and engine to match their specific needs.
Models that use the DSG automatic transmission now benefit from shift-by-wire technology. The system is designed so that the gear selector is not connected to the gearbox mechanically, instead using electronic signals to shift.
The shift-by-wire provides the possibility to select gears without using a physical shifter, this is useful for the new automatic park assistance systems, where the mechanical parking lock was substituted for an electronically controled parking lock. All in all, the new shift-by-wire not only adds a greater level efficiency, but advancement to the art and pleasure of driving.
And as well as the chassis driving mode presets – Eco, Normal and Sport – drivers can use a sliding scale of changes to adapt the all-new SEAT Leon to their exact requirements, offering a very wide number of possibilities.
The new Leon’s offer of standard petrol engines are all direct-injection, turbocharged units and provide power outputs between 66kW/90PS and 140kW/190PS.
The two lower output engines which produce 66kW/90PS and 81kW/110PS of power are 1.0 litre TSI three-cylinder units, which are used in the SEAT Leon for the first time.
Available with power outputs 96kW/130PS and 110kW/150PS, the larger 1.5 litre petrol engines offer a level of performance that will bring a smile to the face of the driver but with the reassurance of optimised efficiency.
The two 1.0-litre units as well as the 1.5 TSI 96kW/130PS use a Miller-cycle combustion process and variable geometry turbocharger to take efficiency to the next level in this displacement size engine.
The Miller-cycle optimises valvetrain control with early closure of the inlets combined with a higher compression rate and turbocharging to better control the air-fuel mixture, to improve efficiency by up to 10%.
The 1.5-litre units also integrate Active Cylinder Management to maximise efficiency.
At the top of the tree is the 140kW/190PS 2.0 litre TSI unit linked to the dual-clutch transmission.
Diesel remains an important technology in reducing carbon emissions, and the all-new Leon benefits from three diesel options: all 2.0 litre TDI units.
The 5 doors and the Sportstourer versions have a choice of manual transmission for the 85kW/115PS, while the 110kW/150PS diesel engines is offered with either manual or DSG automatic transmissions. The Sportstourer is also available with a 110kW/150PS unit mated to a DSG gearbox and 4Drive system.
The TDI units introduce a new twin dosing SCR system that includes dual AdBlue injection to reduce significantly NOx emissions compared to the Leon’s previous generation diesel engines. The result is a range of diesel engines that meet the strict requirement of the latest emissions standards.
The all-new SEAT Leon has the option of a CNG 1.5 litre TGI unit that produces 96kW/130PS of power.
The vehicle integrates 3 CNG tanks with a total net capacity of 17.3kg, giving the CNG-power all-new SEAT Leon a CNG range of 440km without needing to refuel. And if the CNG tanks do run dry, the engine switches automatically to run on petrol until reaching the next CNG fuel station. Once there, it’s as simple to refuel as any other vehicle in the range.
The all-new SEAT Leon also encompasses mild hybrid technology (eTSI), allowing the compact car to provide even greater efficiency levels. The system, which is available with the 1.0 TSI 81kW/110PS and the 1.5 litre 110kW/150PS petrol unit, mates 48V mild-hybrid technology to the combustion engine, which not only adds the efficiency of electrification, but uses a dual-clutch transmission rather than manual.
The technology uses a 48V starter-generator and 48V lithium-ion battery, and efficiency gains obtained, in part, because the system allows the Leon to coast with the engine switched off during some driving scenarios, recover energy under braking and supporting the engine with some electric assistance.
And as SEAT expands its use of electrification, the fourth-generation Leon also includes an advanced plug-in hybrid variant. Mating a 1.4 litre TSI petrol engine electric motor, 13kWh lithium-ion battery pack and six-speed DSG transmission, the setup produces 150kW/204PS of power.
The plug-in hybrid version also allows drivers to use electric only mode, giving a range of some 60km (WLTP) using just the energy stored in the vehicle’s battery – perfect for increased efficiency, or to travel around city streets where air quality regulations are stricter.
The plug-in hybrid version will be offered on both the 5-door and sportstourer versions.
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