Volkswagen does not publicly hide the fact that its main goal is a complete transition to electric mobility, among other things, because of the redemption from the scandalous case with fraudulent emission measurement results called “Dieselgate”.
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Evidently, the VW developers did not resent combustion engines either, because they presented us with a new version of the popular gasoline four-cylinder 1.5 TSI evo2.
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“The 1.5 TSI unit is the mainstay of the range of engines for Volkswagen cars, as it powers many cars around the world from the T-Cross to the Passat Variant. Through continuous development, we have perfected the compact four-cylinder. The result is a further significant reduction in fuel consumption combined with very dynamic characteristics and quick responses,” says Thomas Ulbrich, member of the Board of Directors of the Volkswagen brand responsible for the area of technical development.
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As the name suggests, the novelty is an evolution of the concern’s four-cylinder with a turbocharger, which is now even more efficient thanks to the relocation of the three-way catalyst, which is now in one module with a particulate filter.
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The unit can then manage emissions near the engine, allowing VW to both rely less on precious metals and prepare for tougher EU emissions standards later this decade.
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Volkswagen T-Roc
Photo: Volkswagen
The updated unit will also offer smoother switching from four to just two cylinders as part of an improved “Active Cylinder Management” system. The system has also expanded its operating range, as the two-cylinder engine can also run at medium revs, and Volkswagen guarantees that the connection of the other two cylinders will be “barely noticeable”.
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In addition, the unit has high-pressure fuel injection with a pressure of up to 350 bar, plasma surface treatment of the working surfaces of the cylinders to reduce friction, and cooling channels in the piston castings allowing for further increases in efficiency.
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The novelty will be offered for the first time in the T-Roc and T-Roc Cabrio models with an output of 150 horsepower. Later, however, Volkswagen will pair it with plug-in hybrid systems, which can be found, for example, in the Škoda Octavia RS iV, instead of the aging 14-litre. Later, a similar engine will appear in the new generation VW Passat iV and the next Škoda Superb.
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