Volkswagen Unveils New Full-Hybrid Powertrain for Golf and T-Roc

Wolfsburg, Germany - Volkswagen, a motor vehicle manufacturer, has developed a new full-hybrid drive system designed to deliver temporary electric driving, higher efficiency and extended range without relying on external charging. The system will be introduced in the Golf Hybrid and T-Roc Hybrid from the fourth quarter of 2026.

Unlike plug-in hybrids, the new Volkswagen full-hybrid models do not require charging cables or dedicated charging infrastructure. Energy for electric driving is generated on board through recuperation and a turbocharged petrol engine paired with a generator. The system will be offered in two power outputs and is expected to reduce fuel consumption compared with mild-hybrid technology.

The new full-hybrid setup offers a stronger electric driving capability than a mild hybrid, helping lower emissions, fuel use and running costs. At the same time, it provides a more affordable and convenient alternative to plug-in hybrids, as it does not need external charging. In the Golf range, the new “Hybrid” badge will sit between the existing eTSI mild-hybrid models and the eHybrid/GTE plug-in hybrid variants, further expanding Volkswagen’s electrified powertrain line-up alongside its all-electric ID. models.

Volkswagen’s new full-hybrid system drives the front axle and combines a turbocharged TSI petrol engine, a hybrid module and a lithium-ion battery. The hybrid module brings together the main electric drive motor, a second electric motor used as a generator, power electronics, a differential, a single-speed gearbox and an electronically controlled multiplate clutch. This clutch connects or disconnects the TSI engine from the drivetrain as required. The system also includes an electric air-conditioning compressor and an electric brake servo at the front of the vehicle.

The high-voltage battery uses NMC cells and has a gross capacity of 1.6 kWh, which is typical for HEV applications. In both the Golf and T-Roc, the battery is positioned in the rear section of the vehicle floor to support efficient packaging and balanced operation.

Volkswagen has engineered the interaction between the 1.5 TSI evo2 petrol engine, two electric motors and the high-voltage battery to deliver a strong balance of efficiency, performance and comfort. The electric drive motor can either replace or support the petrol engine whenever it improves efficiency. As a result, the Golf Hybrid and T-Roc Hybrid can frequently operate on electric power alone, especially when moving off, driving at low speeds and travelling in urban areas.

The system automatically switches between three operating modes based on driving conditions:

Electric propulsion: The vehicle runs at low speeds using only the electric motor, while the TSI engine remains switched off.

Serial drive: The electric motor powers the vehicle, while the TSI engine runs separately to generate electricity through the generator. This helps extend electric driving capability while keeping the engine in an efficient operating range.

Parallel drive: From around 60 km/h on country roads and motorways, the TSI engine becomes the main power source. The electric motor supports the petrol engine, such as during acceleration or boost demand.

Drivers will also be able to choose from three driving profiles: Eco, Comfort and Sport. In Eco mode, system output is limited to 70% and the boost function is disabled to reduce energy consumption. Comfort mode allows full system output and boost support. Sport mode prioritizes faster power delivery by switching earlier into serial operation, making maximum performance available more quickly.

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