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Thanks to its increased tank volume, the new model year Audi A3 Sportback g-tron can cover around 400km in gas operation.

13 Mar 2019 | International News : Germany


The Audi A3 Sportback g-tron forms part of an integrated and sustainable mobility concept from the brand with the four rings. Equipped with a new 1.5 TFSI engine producing 129bhp, the A3 Sportback g-tron sets standards for efficiency and economy. To enable the four-cylinder engine to run on these fuels, Audi engineers modified its cylinder head, turbocharging, fuel-injection system and catalytic converter.

The Audi A3 Sportback g-tron arrives at the customer equipped with a seven-speed S tronic
Compared to gasoline, combustion of natural gas emits 25% less CO2 due to the lowest carbon content of all hydrocarbons. In addition, particulate emissions remain very low.

Just as before, there are two tanks made of glass fibre-reinforced polymer beneath the luggage compartment floor of the five-door car, each of which hold roughly 7kg of gas. They reduce luggage space only marginally and are constructed from a composite material, making them very lightweight.

In the new Audi A3 Sportback 
g-tron, an additional steel cylinder filled with 4kg of CNG extends the range during gas operation. Reducing the size of the gasoline tank not only frees up the necessary space for this additional gas tank, it also makes the new Audi A3 Sportback g-tron a quasi-monovalent vehicle.

Using the specific benefits and dimensions of each of the two tank technologies to its advantage, the intelligent combination of GFRP tanks and the gas tank makes optimum use of the existing installation space. The gasoline tank, which now holds nine litres,
 provides the conventional mobility reserve.

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