SEAT Arona Fuel Tank Capacity Guide (2017–2024)

Understanding the SEAT Arona’s fuel tank capacity is essential for planning long journeys, estimating running costs, and comparing trims across model years. We created this detailed, data-rich guide to give you a complete breakdown of every SEAT Arona fuel tank size, how it varies across engines, and what it means for real-world driving.

SEAT Arona Fuel Tank Capacity Overview

The SEAT Arona—launched in 2017 and continuing through its facelift years—comes with two primary fuel tank capacities depending on engine type:

• 40 litres (most petrol engines from 2017 onward)
• 14 litres (CNG-only auxiliary tank used in TGI versions)

This variation directly links to engine configuration and market availability. While petrol engines use the full 40-litre tank, the Arona TGI (natural gas) combines a 14-litre petrol backup tank with CNG cylinders.

Fuel Tank Capacity by Engine Type

Petrol Engines (1.0 TSI & 1.5 TSI)

Most SEAT Arona models on the road today run on petrol, and nearly all use a 40-litre tank.

Common Petrol Engine Variants

• 1.0 TSI 95 hp
• 1.0 TSI 110 hp (post-facelift)
• 1.5 TSI 150 hp ACT
• 1.0 TSI 115 hp (DSG)

Regardless of output or gearbox, they share the same 40-litre capacity.

CNG Engines (1.0 TGI)

The Arona TGI is a special dual-fuel model offered in select markets.

CNG Tank Configuration

• Three CNG cylinders: Equivalent to ~13.8–14 kg of compressed natural gas
• 14-litre petrol tank: Backup tank for cold starts or when CNG runs out

This creates the dual-capacity numbers often seen in specification sheets: 40 l (petrol models) vs 14 l (for the petrol reserve tank in TGI models).

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Fuel Tank Capacity by Production Year

2017–2020 (Pre-facelift Models)

• All petrol versions: 40 litres
• Natural gas Arona TGI:
  • 14-litre petrol tank
  • Dedicated CNG storage cylinders

These early years included the 95 hp and 115 hp engines with manual or DSG gearboxes.

2021–2024 (Facelift Models)

The facelift didn’t alter the petrol tank size.

• Petrol: 40 litres across all trims
• CNG: 14-litre auxiliary petrol tank

SEAT continued the same tank architecture, ensuring parts compatibility and simplified production.

SEAT Arona Fuel Tank Capacity Table (All Versions)

Real-World Driving Range Estimates

Understanding range matters more than the raw tank number. Below is what you can expect on the road.

Petrol Versions (40-litre Tank)

Typical real-world fuel economy:

• 1.0 TSI manual: 45–52 mpg
• 1.0 TSI DSG: 42–48 mpg
• 1.5 TSI: 40–47 mpg

Approximate range:

• 380–460 miles per tank

CNG TGI Version

CNG range:

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• 200–260 miles depending on driving style

Petrol backup range:

• 60–80 miles with the 14-litre tank

Total combined range:

• 260–340 miles

Fuel Tank Capacity Compared to Rivals

Volkswagen T-Cross

• 40 litres (similar platform)

Renault Captur

• 48 litres (larger)

Ford Puma

• 42 litres

Peugeot 2008

• 44 litres

The Arona’s 40-litre tank is slightly smaller but compensated by the efficiency of the 1.0 TSI engines.

Which SEAT Arona Has the Best Range?

Winner: 1.0 TSI 110 hp Manual

• Excellent economy
• Efficient TSI engine
• Full 40-litre tank

Runner-Up: 1.5 TSI ACT

• More power
• Cylinder deactivation helps during cruising

Frequently Asked Questions

1. Does every SEAT Arona have a 40-litre tank?

All petrol versions do. Only the TGI natural gas model has a smaller 14-litre petrol tank.

2. How much CNG does the Arona TGI hold?

Around 13.8–14 kg of compressed natural gas across three cylinders.

3. Did the facelift change fuel tank capacity?

No, the tank size remained identical across all years.

4. Which Arona engine gives the longest range?

The 1.0 TSI 110 hp manual provides the most efficient long-distance range.

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5. Why does the Arona TGI have a 14-litre tank?

Because it primarily runs on CNG, and the petrol tank is only used for cold starts and reserve.

Conclusion

The SEAT Arona’s fuel tank capacity is straightforward: 40 litres for all petrol models and 14 litres for the petrol reserve tank in TGI versions, with CNG cylinders providing the main fuel supply. Whether you’re planning long drives or comparing trims, this guide delivers a clear breakdown of capacities, engines, and real-world driving expectations.

If you want to know other articles similar to SEAT Arona Fuel Tank Capacity Guide (2017–2024) you can visit the category Service and Parts.