The Seat Leon III ST (facelift 2016) 1.0 TSI (115 Hp) represents a compelling entry in the European compact segment, showcasing SEAT’s commitment to delivering dynamic driving experiences paired with practical utility and impressive efficiency. Produced from 2016 to 2020, this iteration of the Leon Sport Tourer (ST) received a mid-cycle refresh, enhancing its appeal with subtle design tweaks and updated technology. As a station wagon, or estate, it was designed to cater to families and individuals requiring more cargo capacity than a standard hatchback, without sacrificing the agile handling and modern aesthetics for which the Leon line is known. The inclusion of the 1.0-liter TSI engine, a testament to the industry’s focus on downsizing, provided a potent yet economical powertrain option, making the Leon III ST a strong contender in its competitive market niche.
Engine & Performance: The Heart of the Seat Leon III ST
At the core of the 2016 Seat Leon III ST 1.0 TSI lies a sophisticated three-cylinder, inline internal combustion engine, designated by the code CHZD. This compact powerhouse boasts a displacement of 999 cubic centimeters, or approximately 60.96 cubic inches, yet it delivers a robust 115 horsepower, achieved between 5000 and 5500 revolutions per minute. This impressive power-per-liter output of 115.1 horsepower per liter is a direct result of advanced engineering, primarily featuring a turbocharger and an intercooler. These forced induction systems significantly boost the engine’s volumetric efficiency, allowing it to produce power levels typically associated with larger, naturally aspirated engines.
Further enhancing its performance is a substantial torque output of 147.51 lb.-ft., available across a broad and usable rev range from 2000 to 3500 rpm. This wide torque band contributes to the vehicle’s excellent drivability, providing strong acceleration from low speeds and minimizing the need for frequent gear changes. Power is transmitted to the front wheels via a precise 6-speed manual transmission, offering an engaging driving experience. Despite its relatively small engine size, the Leon III ST 1.0 TSI demonstrates respectable acceleration figures, completing the 0 to 60 mph sprint in an estimated 9.3 seconds, with a top speed reaching 123.03 mph. This performance profile makes it well-suited for both urban commuting and longer highway journeys across Europe.
Beyond raw power, efficiency is a cornerstone of this powertrain. The direct injection fuel system precisely meters gasoline into the combustion chambers, optimizing fuel economy and reducing emissions. The vehicle achieves an impressive combined fuel consumption of 53.5 US miles per gallon, translating to an economy of 4.4 liters per 100 kilometers. This efficiency is complemented by a low CO2 emission rating of 102 grams per kilometer, ensuring compliance with the stringent Euro 6 emission standard. The engine’s layout is front, transverse, contributing to efficient packaging and a balanced weight distribution. With an engine oil capacity of 4 US quarts and a coolant capacity of 8.45 US quarts, maintenance is straightforward. The compression ratio stands at 10.5:1, and each cylinder features four valves, further optimizing combustion efficiency.
Design & Features of the Leon III ST
The 2016 facelift of the Seat Leon III ST brought subtle yet significant refinements to its design, maintaining the brand’s characteristic sharp lines and sporty aesthetic. As a station wagon, the “ST” designation stands for Sport Tourer, emphasizing its dual nature of dynamic handling and practical versatility. The body type is a 5-door station wagon, offering seating for five occupants. Its overall dimensions are well-proportioned for the compact segment, with a length of 179.09 inches, a width of 71.5 inches, and a height of 57.24 inches. The wheelbase of 103.78 inches contributes to both interior space and stable ride quality.
Practicality is a key attribute of the Leon III ST. It boasts a generous minimum trunk space of 20.73 cubic feet, making it highly capable for luggage, groceries, or sports equipment. This cargo volume can be expanded significantly by folding down the rear seats, though the maximum capacity is not specified in the data. The fuel tank capacity of 13.21 US gallons provides a substantial range, further enhancing its suitability for long-distance travel. The vehicle’s kerb weight of 2559.57 pounds, combined with a maximum permissible weight of 3902.18 pounds, allows for a substantial maximum load of 1342.62 pounds, highlighting its robust construction. Furthermore, it has a permitted trailer load with brakes of 2204.62 pounds, indicating its capability for light towing needs.
Underneath its stylish exterior, the Leon III ST features a well-engineered chassis designed for comfortable and controlled driving. The front suspension employs an independent McPherson strut setup with coil springs and an anti-roll bar, providing precise steering and good road holding. The rear suspension utilizes a semi-independent coil spring arrangement, balancing ride comfort with cost-effectiveness. Braking performance is assured by ventilated discs at the front and disc brakes at the rear, complemented by an Anti-lock Braking System (ABS) for enhanced safety during emergency stops. The electric power steering system, with a steering rack and pinion type, offers responsive and light steering, particularly beneficial in urban environments, contributing to a minimum turning circle of 33.79 feet. The vehicle comes equipped with tire sizes ranging from 195/65 R15 to 205/55 R16, mounted on 15-inch or 16-inch wheel rims, offering a balance of grip, comfort, and efficiency.
Technical Specifications
| Brand | Seat |
| Model | Leon |
| Generation | Leon III ST (facelift 2016) |
| Type (Engine) | 1.0 TSI (115 Hp) |
| Start of production | 2016 year |
| End of production | 2020 year |
| Powertrain Architecture | Internal Combustion engine |
| Body type | Station wagon (estate) |
| Seats | 5 |
| Doors | 5 |
| Fuel consumption (economy) – combined | 53.5 US mpg (4.4 l/100 km) |
| CO2 emissions | 102 g/km |
| Fuel Type | Petrol (Gasoline) |
| Acceleration 0 – 60 mph | 9.3 sec |
| Maximum speed | 123.03 mph (198 km/h) |
| Emission standard | Euro 6 |
| Weight-to-power ratio | 10.1 kg/Hp |
| Weight-to-torque ratio | 5.8 kg/Nm |
| Power | 115 Hp @ 5000-5500 rpm |
| Power per liter | 115.1 Hp/l |
| Torque | 147.51 lb.-ft. @ 2000-3500 rpm (200 Nm) |
| Engine layout | Front, Transverse |
| Engine Model/Code | CHZD |
| Engine displacement | 60.96 cu. in. (999 cm3) |
| Number of cylinders | 3 |
| Engine configuration | Inline |
| Cylinder Bore | 2.93 in. (74.5 mm) |
| Piston Stroke | 3.01 in. (76.4 mm) |
| Compression ratio | 10.5:1 |
| Number of valves per cylinder | 4 |
| Fuel injection system | Direct injection |
| Engine aspiration | Turbocharger, Intercooler |
| Engine oil capacity | 4.23 US qt (4 l) |
| Coolant | 8.45 US qt (8 l) |
| Kerb Weight | 2559.57 lbs (1161 kg) |
| Max. weight | 3902.18 lbs (1770 kg) |
| Max load | 1342.62 lbs (609 kg) |
| Trunk (boot) space – minimum | 20.73 cu. ft. (587 l) |
| Fuel tank capacity | 13.21 US gal (50 l) |
| Permitted trailer load with brakes (12%) | 2204.62 lbs (1000 kg) |
| Length | 179.09 in. (4549 mm) |
| Width | 71.5 in. (1816 mm) |
| Height | 57.24 in. (1454 mm) |
| Wheelbase | 103.78 in. (2636 mm) |
| Front track | 60.79 – 60.98 in. (1544-1549 mm) |
| Rear (Back) track | 59.61 – 59.84 in. (1514-1520 mm) |
| Minimum turning circle (turning diameter) | 33.79 ft. (10.3 m) |
| Drivetrain Architecture | Front wheel drive (Internal Combustion engine drives front wheels) |
| Drive wheel | Front wheel drive |
| Number of gears and type of gearbox | 6 gears, manual transmission |
| Front suspension | Independent, type McPherson with coil spring and anti-roll bar |
| Rear suspension | Semi-independent, coil spring |
| Front brakes | Ventilated discs |
| Rear brakes | Disc |
| Assisting systems | ABS (Anti-lock braking system) |
| Steering type | Steering rack and pinion |
| Power steering | Electric Steering |
| Tires size | 195/65 R15; 205/55 R16 |
| Wheel rims size | 15; 16 |


