The Seat Leon III ST 1.8 TSI (180 Hp) start/stop DSG represents a compelling blend of practicality, performance, and advanced engineering from the Spanish automaker Seat, a brand renowned for its vibrant design and sporty driving dynamics within the Volkswagen Group. Produced between 2013 and 2016, this third-generation Leon variant, specifically the Sport Tourer (ST) station wagon, was primarily targeted at the European and other international markets where Seat maintains a strong presence. While not officially sold in the United States, the Leon III ST offers a fascinating glimpse into the compact family vehicle segment as interpreted through Seat’s distinctive lens, combining spaciousness with an engaging driving experience, all while adhering to contemporary standards of efficiency and technology.
Engine and Performance of the Seat Leon III ST 1.8 TSI (180 Hp) start/stop DSG
At the heart of the Seat Leon III ST lies a sophisticated 1.8-liter (109.72 cu. in.) TSI turbocharged gasoline engine, identified by the EA888 / CJSA model code. This inline four-cylinder powerplant is a testament to Volkswagen Group’s engineering prowess, delivering a robust 180 horsepower between 5100 and 6200 rpm. What truly sets this engine apart is its impressive torque output: 250 Nm (184.39 lb.-ft.) available across an exceptionally broad rev range, from a low 1250 rpm all the way up to 5000 rpm. This wide torque band ensures strong, responsive acceleration from virtually any speed, making the Leon III ST feel agile and capable in diverse driving conditions, from city commuting to highway cruising.
The engine’s advanced design incorporates a dual fuel injection system, utilizing both direct injection and multi-port manifold injection. This innovative approach optimizes fuel delivery for varying engine loads, enhancing both power output and fuel efficiency while minimizing emissions. Complementing this is a turbocharger with an intercooler, which significantly boosts performance by forcing more air into the cylinders, while the intercooler ensures that this air is cooled for maximum density and efficiency. The DOHC (Double Overhead Camshaft) valvetrain with four valves per cylinder further contributes to the engine’s ability to breathe efficiently at higher RPMs, supporting its spirited performance characteristics. With a compression ratio of 9.6:1, the engine is finely tuned for premium unleaded gasoline.
Power is channeled to the front wheels through a highly regarded 7-speed automatic DSG (Direct Shift Gearbox) transmission. This dual-clutch gearbox is celebrated for its lightning-fast and seamless gear changes, which not only contribute to the vehicle’s sporty feel but also play a crucial role in its impressive fuel economy. The combination of the potent 1.8 TSI engine and the efficient DSG transmission allows the Leon III ST to accelerate from 0 to 60 mph in a swift 7.3 seconds, reaching a maximum speed of 139.19 mph. These figures underscore the vehicle’s ability to deliver genuinely engaging performance for a family-oriented station wagon.
Efficiency is a key focus for this model, evidenced by its integrated Start & Stop system, which automatically shuts off the engine when the vehicle is stationary and restarts it instantaneously when the driver lifts their foot from the brake pedal. This feature significantly reduces fuel consumption and emissions in urban traffic. The vehicle boasts a combined fuel economy of 41.3 US mpg (5.7 liters per 100 km), with urban consumption rated at 33.6 US mpg (7 liters per 100 km) and an impressive extra-urban figure of 47 US mpg (5 liters per 100 km). With CO2 emissions of 129 g/km, the Leon III ST meets the stringent Euro 6 emission standard, highlighting its commitment to environmental responsibility. Its weight-to-power ratio of 7.2 kg/Hp and weight-to-torque ratio of 5.2 kg/Nm further illustrate its well-balanced performance characteristics.
Design and Practicality of the Seat Leon III ST
The Seat Leon III ST is a prime example of how a station wagon can combine aesthetic appeal with exceptional utility. Its body type, known as an “estate” in many markets, is characterized by a sleek, dynamic profile that belies its substantial cargo capacity. Measuring 178.54 inches in length, 71.5 inches in width (77.76 inches including mirrors), and 57.24 inches in height, the Leon III ST strikes a balance between compact maneuverability and generous interior space. The 103.78-inch wheelbase contributes to a stable ride and ample legroom for its five occupants.
Designed with the needs of families and active individuals in mind, the Leon III ST offers five doors for easy access to both front and rear seats. The true highlight of its design, however, is its cargo versatility. With the rear seats in place, the trunk provides a substantial 20.73 cubic feet (587 liters) of storage. When the rear seats are folded down, this capacity expands dramatically to an impressive 51.91 cubic feet (1470 liters), making it capable of accommodating large items such such as bicycles, furniture, or extensive luggage for road trips. The maximum load capacity of 1307.34 lbs, coupled with a permissible roof load of 165.35 lbs, further underscores its utility.
Beyond its spacious interior, the Leon III ST is engineered for a refined and controlled driving experience. The front suspension features an independent McPherson strut setup with coil springs and an anti-roll bar, ensuring precise steering response and comfortable ride quality. At the rear, an independent multi-link spring suspension with a stabilizer bar enhances stability and handling, particularly when the vehicle is fully loaded or navigating winding roads. This sophisticated suspension architecture is a hallmark of the Volkswagen Group’s MQB platform, on which the Leon III is based, providing a blend of comfort and dynamic agility.
Braking performance is handled by a robust system featuring 312×25 mm ventilated discs at the front and 272×10 mm solid discs at the rear, providing confident stopping power. An Anti-lock Braking System (ABS) is standard, enhancing safety by preventing wheel lock-up during emergency braking. The steering system is a rack and pinion type with electric power steering, offering precise control and variable assistance that adapts to driving speed, making low-speed maneuvers effortless and high-speed driving stable. The vehicle is equipped with tire sizes of either 225/45 R17 or 225/40 R18, mounted on 7.5J x 17 or 7.5J x 18 wheel rims, respectively, contributing to both its aesthetic appeal and road holding capabilities. The compact minimum turning circle of 33.79 feet (10.3 meters) further aids maneuverability in urban environments.
Technical Specifications
| Brand | Seat |
| Model | Leon |
| Generation | Leon III ST |
| Type (Engine) | 1.8 TSI (180 Hp) start/stop DSG |
| Start of production | 2013 year |
| End of production | 2016 year |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – urban | 33.6 US mpg (7 l/100 km) |
| Fuel consumption (economy) – extra urban | 47 US mpg (5 l/100 km) |
| Fuel consumption (economy) – combined | 41.3 US mpg (5.7 l/100 km) |
| CO2 emissions | 129 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 7.3 sec |
| Maximum speed | 139.19 mph (224 km/h) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 7.2 kg/Hp |
| Weight-to-torque ratio | 5.2 kg/Nm |
| Power | 180 Hp @ 5100-6200 rpm |
| Power per liter | 100.1 Hp/l |
| Torque | 184.39 lb.-ft. (250 Nm) @ 1250-5000 rpm |
| Engine layout | Front, Transverse |
| Engine Model/Code | EA888 / CJSA |
| Engine displacement | 1.8 liters (1798 cm3 / 109.72 cu. in.) |
| Number of cylinders | 4 |
| Engine configuration | Inline |
| Cylinder Bore | 3.25 in. (82.5 mm) |
| Piston Stroke | 3.31 in. (84.2 mm) |
| Compression ratio | 9.6:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection and Multi-port manifold injection |
| Engine aspiration | Turbocharger, Intercooler |
| Valvetrain | DOHC |
| Engine oil capacity | 5.49 US qt (5.2 l) |
| Engine oil specification | Not specified |
| Coolant | 10.57 US qt (10 l) |
| Engine systems | Start & Stop System |
| Kerb Weight | 2859.4 lbs (1297 kg) |
| Max. weight | 4166.74 lbs (1890 kg) |
| Max load | 1307.34 lbs (593 kg) |
| Trunk (boot) space – minimum | 20.73 cu. ft. (587 l) |
| Trunk (boot) space – maximum | 51.91 cu. ft. (1470 l) |
| Fuel tank capacity | 13.21 US gal (50 l) |
| Max. roof load | 165.35 lbs (75 kg) |
| Permitted trailer load with brakes (8%) | 3968.32 lbs (1800 kg) |
| Permitted trailer load with brakes (12%) | 3306.93 lbs (1500 kg) |
| Permitted trailer load without brakes | 1499.14 lbs (680 kg) |
| Length | 178.54 in. (4535 mm) |
| Width | 71.5 in. (1816 mm) |
| Width including mirrors | 77.76 in. (1975 mm) |
| Height | 57.24 in. (1454 mm) |
| Wheelbase | 103.78 in. (2636 mm) |
| Front track | 60.39 in. (1534 mm) |
| Rear (Back) track | 59.37 – 59.49 in. (1508-1511 mm) |
| Front overhang | 33.58 in. (853 mm) |
| Rear overhang | 41.18 in. (1046 mm) |
| Minimum turning circle (turning diameter) | 33.79 ft. (10.3 m) |
| Drivetrain Architecture | The Internal combustion engine (ICE) drives the front wheels of the vehicle. |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 7 gears, automatic transmission DSG |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Independent multi-link spring suspension with stabilizer |
| Front brakes | Ventilated discs, 312×25 mm |
| Rear brakes | Disc, 272×10 mm |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 225/45 R17; 225/40 R18 |
| Wheel rims size | 7.5J x 17; 7.5J x 18 |


